HomeMy WebLinkAbout2011-3353 - Ordinance - 06/23/2011
ORDINANCE NO. 2011 3353
AN ORDINANCE OF THE CITY OF COLLEGE STATION, TEXAS, AMENDING THE
COLLEGE STATION COMPREHENSIVE PLAN BY ADOPTING THE WASTEWATER
MASTER PLAN; PROVIDING A SEVERABILITY CLAUSE, PROVIDING AN
EFFECTIVE DATE; AND CONTAINING OTHER PROVISIONS RELATED THERETO.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF COLLEGE STATION,
TEXAS:
PART 1: That the College Station Comprehensive Plan is hereby amended by adding a new
subsection B.11, the Wastewater Master Plan as duly adopted herein and as
incorporated into such Comprehensive Plan by reference thereto as if recited in
full and as set forth in Exhibit "A" attached hereto and made a part hereof.
PART 2: That the City Council of the City of College Station hereby adopts the
Wastewater Master Plan as set out in Exhibit "B" attached hereto and made a part
hereof.
PART 3: That if any provisions of any section of this ordinance shall be held to be void or
unconstitutional, such holding shall in no way affect the validity of the remaining
provisions or sections of this ordinance, which shall remain in full force and
effect.
PART 4: That this ordinance shall take effect immediately from and after its passage.
PASSED, ADOPTED and APPROVED this 23rd day of June 1 2011.
ATTEST: APPROVED:
City Secretar Mayor
APP ED:
Ci Attorney
ORDINANCE NO. 2011-3353 Page 2
EXHIBIT "A"
A. Comprehensive Plan
The College Station Comprehensive Plan (Ordinance 3186) is hereby adopted and
consists of the following:
1. Existing Conditions;
2. Introduction;
3. Community Character;
4. Neighborhood Integrity;
5. Economic Development;
6. Parks, Greenways & the Arts;
7. Transportation;
8. Municipal Services & Community Facilities; and
9. Growth Management and Capacity.
B. Master Plans
The following Master Plans are hereby adopted and made a part of the College Station
Comprehensive Plan:
1. The Northgate Redevelopment Plan dated November 1996;
2. The Revised Wolf Pen Creek Master Plan dated 1998;
3. Northgate Redevelopment Implementation Plan dated July 2003;
4. East College Station Transportation Study dated May 2005;
5. Parks, Recreation and Open Space Master Plan dated May 2005;
6. Park Land Dedication Neighborhood Park Zones Map dated January 2009;
7. Park Land Dedication Community Park Zones map dated April 2009;
8. Bicycle, Pedestrian, and Greenways Master Plan dated January 2010;
9. Central College Station Neighborhood Plan dated June 2010;
10. Water System Master Plan dated August 2010; and
11. Wastewater Master Plan dated June 2011.
C. Miscellaneous Amendments
The following miscellaneous amendments to the College Station Comprehensive Plan are
as follows:
1. Future Land Use and Character Map Amendment
a. 301 Southwest Parkway - Ordinance 3255, dated July 2010.
ORDINANCE NO. 2011-3353 Page 3
D. General
1. Conflict. All parts of the College Station Comprehensive Plan and any amendments
thereto shall be harmonized where possible to give effect to all. Only in the event of
an irreconcilable conflict shall the later adopted ordinance prevail and then only to
the extent necessary to avoid such conflict. Ordinances adopted at the same city
council meeting without reference to another such ordinance shall be harmonized, if
possible, so that effect may be given to each.
2. Purpose. The Comprehensive Plan is to be used as a guide for growth and
development for the entire City and its extra-territorial jurisdiction C'ETY). The
College Station Comprehensive Plan depicts generalized locations of proposed future
land-uses, including thoroughfares, bikeways, pedestrian ways, parks, greenways,
and waterlines that are subject to modification by the City to fit local conditions and
budget constraints.
3. General nature of Future Land Use and Character. The College Station
Comprehensive Plan, in particular the Future Land Use and Character Map found in
A.3 above and any adopted amendments thereto, shall not be nor considered a
zoning map, shall not constitute zoning regulations or establish zoning boundaries
and shall not be site or parcel specific but shall be used to illustrate generalized
locations.
4. General nature of College Station Comprehensive Plan. The College Station
Comprehensive Plan, including the Thoroughfare Plan, Bicycle, Pedestrian, and
Greenways Master Plan, Central College Station Neighborhood Plan, Water System
Master Plan and any additions, amendments, master plans and subcategories
thereto depict same in generalized terms including future locations; and are subject
to modifications by the City to fit local conditions, budget constraints, cost
participation, and right-of-way availability that warrant further refinement as
development occurs. Linear routes such as bikeways, greenways, thoroughfares,
pedestrian ways, waterlines and sewer lines that are a part of the College Station
Comprehensive Plan may be relocated by the City 1,000 feet from the locations
shown in the Plan without being considered an amendment thereto.
5. Reference. The term College Station Comprehensive Plan includes all of the above
in its entirety as if presented in full herein, and as same may from time to time be
amended.
ORDINANCE NO. 2011-3353 Page 4
EXHIBIT "B"
Wastewater Master Plan:
EXHIBIT B
2011 WASTEWATER
MASTER PLAN
CITY OF COLLEGE STATION
WATER SERVICES DEPARTMENT
2011 - FUTURE
The City of College Station
Home of Texas A& M University
EXHIBIT B
ATTACHED DOCUMENTS INCLUDE:
❖ Wastewater Master Plan Implementation
o This section outlines the timeframe embraced by this plan, the roles of the various parties involved
in its implementation, provides an overview of the costs associated with the plan, begins the
discussion of how these costs will be funded, details how the plan will be implemented, and
explains how the plan will be monitored over time and kept relevant.
❖ Wastewater Master Plan Temporary Flow Monitoring Report
o This report documents the flow monitoring activities performed and summarizes the data results.
❖ Wastewater Master Plan Demand Analysis Report
o This report discusses the existing and projected demands on the wastewater collection and
wastewater treatment systems.
❖ Wastewater Master Plan Treatment Facilities Evaluation
o This report documents the evaluation of the existing wastewater treatment facilities against TCEQ
Chapter 217, evaluates several sludge processing alternatives, and evaluates nutrient removal
using a biological process.
❖ Wastewater Master Plan Collection System Evaluation
o This repot documents the evaluation of the existing collection and lift station systems and the
future collection and lift station system needs. The report includes projects to increase system
capacity, with all work summarized in a capital improvements plan.
❖ Wastewater Master Plan Future Collection System Map
o This exhibit depicts wastewater collection lines that are anticipated to be extended and/or needed
to increase existing wastewater collection system capacities.
The City of College Station
Home of Texas A& M University
EXHIBIT B
Implementation & Administration
This Wastewater Master Plan is being formulated to support the long term needs and goals of the City
as envisioned in the Comprehensive Plan. This section summarizes the methodology to turn
recommendations into reality to ensure that the wastewater collection/treatment needs of the
community are met as the City grows and changes over the next decade. This section outlines the
timeframe embraced by this plan, the roles of the various parties involved in its implementation,
provides an overview of the costs associated with the plan, begins the discussion of how these costs will
be funded, details how the plan will be implemented, and finally explains how the plan will be
monitored overtime and kept relevant.
Timeframe of Master Plan
Implementation of the Wastewater Master Plan is anticipated to take ten or more years and is expected
to lay the foundation for the next several decades of the city's on-going efforts at delivering the citizen's
a reliable wastewater collection/treatment system. Many outside influences directly impact the City's
ability to provide adequate a wastewater collection/treatment, such as: The potential nutrient removal
parameters/permit requirements from the Texas Commission on Environmental Quality; Updated
state/federal design regulations on expanding treatment plant capacities; More dense developments
depicted in the comprehensive plan that require larger collections lines to be installed; etc. These
factors will be monitored closely over the next decade and beyond, and this plan will be updated as any
initiatives dictate.
Implementation and Coordination Roles
A variety of parties will need to be involved in the implementation of this plan to realize its successful
completion. This includes various government departments as well as development interests and
residents and business owners. Outlined in the following are several of the key parties and the types of
actions in which they should participate.
City Council will take the lead in the following areas:
• Adopt and amend the Wastewater Master Plan by ordinance after receiving recommendations
from the Planning & Zoning Commission;
• Support and champion the Plan;
• Adopt new or amended ordinances and regulations to implement the Plan;
• Approve inter-local agreements that implement the Plan;
• Consider and approve the funding commitments that will be required to implement the Plan;
• Provide final approval of projects and activities with associated costs during the budget process;
• Adopt and amend policies that support and help implement the Plan
• Conduct an annual public hearing regarding the implementation of this Plan; and
• Provide policy direction to the Planning & Zoning Commission, other appointed City boards and
commissions, and City staff
EXHIBIT B
Planning & Zoning Commission will take the lead in the following areas:
• Recommend changes in codes and standards to the City Council that reflect the goals and action
items;
• Make recommendations regarding the Plan for subsequent approval and adoption by the City
Council;
• Review Capital Improvement Plans and make recommendations to the City Council;
• Conduct an annual public hearing regarding the implementation of this Plan;
• Function as the City's Capital Improvement Advisory Committee (CIAC) to make
recommendations regarding possible Impact Fees, and
• Review development applications for consistency with this Plan and the Comprehensive Plan.
City Staff will take the lead in the following areas:
• Manage day-to-day implementation of the Plan;
• Support and carry out capital improvement plan efforts and programming;
• Manage the drafting of new or amended regulations and ordinances that further the goals of
the Plan;
• Conduct necessary studies and develop additional plans where appropriate;
• Review development applications for consistency with this Plan and the Comprehensive Plan;
• Negotiate the details of any necessary inter-local agreements;
• Administer collaborative programs and ensure open channels of communication with various
private, public, and non-profit implementation partners; and
• Maintain an inventory of potential plan amendments as suggested by City staff and others for
consideration during annual and periodic plan review and updates to the Planning & Zoning
Commission and City Council.
City Residents, Development Interests, Business Owners, and others will take the lead in the following
areas:
• Support and implement the plan;
• Develop and carry-out development projects consistent with this Plan and the Comprehensive
Plan;
• Assist in the monitoring of the Plan and participate in the annual review process of the Plan, and
• Assist staff in developing new programs and project opportunities to aid in implementation of
the Plan.
Costs and Funding
Understanding and accurately projecting the costs of implementing this Plan are critical to its success.
Failure to adequately project costs and secure funding to implement this Plan could both impact the
dependability of the City's wastewater collection and treatment, which could constrain future
development opportunities. Costs were projected for design, construction and maintenance of the
EXHIBIT B
facilities contained within this Plan. These projections should only be used as a preliminary guide with
further study needed to arrive at more accurate cost projections. Figure 1 provides cost projections for
the future development driven capital improvement projects shown on the master plan update.
Figures 2a, 2b, and 2c provide a 10-year cost projection for the rehabilitation of facilities, or to provide
additional system capacity. Costs associated with each facility are provided based on near-term (within
the next three to five years) and long-term (within the ten year planning horizon of this plan but beyond
the near-term). All projections are based in 2011 dollars. Estimated operations and maintenance(O&M)
costs can also be found in Figure 1 for future/potential development driven lift stations. As noted,
additional detailed analysis will be needed to ensure all factors and issues are considered before actually
developing a project budget and allocating funds.
Figure 1
(Development Driven CIP Summary)
PROJECT DESCRIPTION EST. COST EST. O&M/YR
Scott & White Lift Station & SSL $1,526,000 $25,000
Potential Lift Station 2 $50,000 $25,000
Potential Lift Station 3 $1,410,000 $25,000
Potential Lift Station 5 $200,000 $25,000
Potential Lift Station 7 $30,000 $25,000
Potential Lift Station 8 $257,000 $25,000
Potential Lift Station 10 $173,000 $25,000
Potential Lift Station 11 $607,000 $25,000
Potential Lift Station 12 $226,000 $25,000
Associated Trunk Line and Force Main Extensions $30,154,876 $300,000
TOTAL = 34.63 M 525 000
Figure 2a
(10-yr CIP Summary-> Collection System Capacity Expansion Projects)
PROJECT DESCRIPTION START DESIGN ESTIMATED COST
Bee Creek Parallel Trunk Line Phase I FY 11-12 $9,364,421
Bee Creek Parallel Trunk Line Phase II FY 11-12 $3,071,238
Wellborn Sewer Service LS & SSL FY 11-12 $3,332,836
SHWY 30 Area Lift Station & SSL FY 11-12 $1,100,000
CC6 Trunk Line FY 12-13 $1,021,653
Lick Creek Trunk Line FY 15-16 $4,970,435
NE Trunk Line Phase I I' FY 12-13 $4,483,467 F
NE Trunk Line Phase II FY 13-14 $5,115,542
Southwood Valley Trunk Line FY 14-15 $2,027,255
LC5 Trunk Line FY 15-16 $531,021
LC7 Trunk Line - FY 16-17 jn~ $395,688
CC4 Trunk Line FY 16-17 $2,504,350
TOTAL = 37.92 M
EXHIBIT B
Figure 2b
(10-yr CIP Summary-> Treatment System Capacity Expansion Projects)
PROJECT DESCRIPTION START DESIGN ESTIMATED COST
Carters Creek ATAD Improvements FY 11-12 $914,000
SCADA- New Lift Station FY 11-12 $275,000
Carters Creek ATAD Expansion(Add 1-Tank) FY 14-15 $1,427,000
LCWWTP Land Acquisition FY 14-15 $2,909,000
Lick Creek Digestion Facility FY 14-15 $6,232,237*
Lick Creek Capacity Expansion FY 15-16 $7,127,000*
CCWWTP Land Acquisition FY 15-16 $1,749,000
Carters Creek Capacity Expansion FY 15-16 $15,000,000*
TOTAL = 35.63 M
*Cost Dependant On Choice of Digestion
Figure 2c
(10-yr CIP Summary-> Rehabilitation Projects)
PROJECT DESCRIPTION PLANNED YEAR ESTIMATED COST
Northeast Trunk Line Bank Stabilization FY 10-11 $572,276
Lick Creek Centrifuge Replacement FY 10-11 $1,000,000
CC Digested Sludge Aerator Replacement FY 10-11 $650,000
Lick Creek Return Activated Sludge Mod. FY 10-11 $433,144
Lick Creek Sludge Holding Tank Impr. FY 10-11 $452,739
Lick Creek Clarifier Catwalks FY 10-11 $413,470
Lick Creek Process Control Impr. FY 10-11 $278,435
Lick Creek Centrifuge Impr. FY 10-11 $405,571
SCADA Replacement FY 10-11 $545,340
CC Fiber Ring FY 10-11 $450,000
Carters Creek Lab and SCADA Building FY 10-11 $1,067,117
South Knoll/The Glade SSL Rehabilitation FY 11-12 $3,005,683
Lick Creek Sludge Blower Replacement FY 11-12 $200,000
Carters Creek Headworks Impr. FY 11-12 $2,628,000
Northeast Trunkline Rehabilitation FY 11-12 $309,029
Aggie Acres Fiber Optic Conduit FY 11-12 $111,172
Eastgate Rehab PHIV FY 11-12 $2,468,729
CC Treatment Structure Coatings Rep. FY 12-13 $366,000
CC Centrifuge Improvements FY 12-13 ' $2,182,000
Carters Creek Electrical Impr. FY 12-13 $1,323,000
Lick Creek Generator Replacement FY 13-14 $744,000
College Heights SSL Rehabilitation FY 13-14 $1,288,387
McCulloch SSL Rehabilitation FY 14-15 $2,077,077
Lift Station Force Main Rehabilitation FY 15-16 $71,797
Lift Station #3 Gravity Sewer Line FY 16-17 $729,472
TOTAL = 23.77 M
EXHIBIT B
The availability of funding to implement the Plan will play an integral role in its success. Historically, the
development of the City's wastewater treatment/collection has been accomplished by developers
installing wastewater system components within a new development, and the City funding the major
system components like treatment plants and trunk lines. Under this system, expansion of the capacity
of the wastewater treatment plants and large trunk line networks has relied solely on the rate payers.
Due to budget constraints, concerns with rates, etc. it is increasingly becoming expected that capacity
related expansions (collection, treatment) will rely upon development activities for funding and
implementation.
The exclusive source of funding for implementation of this Plan is the Wastewater Fund, which is an
Enterprise Fund within the City. The Wastewater Fund obtains revenue from the following sources:
• Revenue collected by rates assessed to the system users
• Various Fees charged to individuals, primary developers, including Impact Fees
• Utility Revenue Bonds - Issued as needed for long-term assets
• Certificates of Obligation - Issued as needed to long-term assets
• Other sources that may be used by Council action:
o Public Improvement Districts - These districts use property assessments to
finance public improvement projects within a specified area, or district.
Properties within the designated area are generally assessed proportional to the
assessed value of their property. The additional funds would be used to fund a
specific public improvement project.
o Tax Increment Financing Districts - These districts use taxes generated from
redevelopment through private investment to finance public improvement
projects within the specified district.
o State and Federal Governments/Grants - Funding opportunities from the state
and federal government are also available.
Currently, Impact Fees are a minor source of revenue, but the City is considering a change. Presently
there are four Impact Fee wastewater lines, whereby a fee is charged for connection to a specific
wastewater line, and the fees are applicable only to the sewer shed for that specific line. However, the
City Council is considering implementation of Impact Fees for "system capacity" which would help cover
the capital cost of plant expansions and new trunk line capacity - these fees would be charged City-
wide, and paid at the time of pulling a building permit. An Impact Fee Report has been prepared,
following the provisions of State Law, and the City Council will decide whether to implement these fees,
and if so, at what amount (up to the stipulated maximum). As a general rule, we expect that if the
maximum fees are enacted, the revenue generated would cut future rate increases in half.
Implementation Methods
The recommendations described in this Plan will require several methods to progress from a concept
into constructed facilities and programs. This section provides a description of each of these methods:
Policy, Regulations, and Standards
EXHIBIT B
For the City's wastewater system to meet future demands and keep pace with the City's growth and
development, adopting clear policies, regulations, and standards that support the goals and actions of
this Plan and the Comprehensive Plan are vital, particularly in light of existing budgetary challenges and
the increased demand on the existing system. As development occurs, land use, development, and
utility policies, regulations, and standards can have a positive and long-lasting impact. Adopting and
amending existing policies, regulations, and standards will be necessary to successfully implement this
Plan. For example, we must consider the long-range impacts of new restrictions on our Discharge
Permits, such a Nutrient Removal. If TCEQ places further restrictions on Nitrogen or Phosphorous
concentrations, then major components of the treatment system would need to be added, at significant
capital cost. A second example is the potential co-generation of electricity. This is feasible, but would
require the conversion to an anaerobic treatment system, which again, would have significant capital
costs associated with it.
Capital Improvements Programming
A Capital Improvements Program is a multi-year plan (in College Station typically five years in length)
that identifies budgeted capital projects such as wastewater trunk lines, treatment plant capacity
expansions, and the purchase of major equipment. Identifying and budgeting for major capital
improvements is essential to implementing this Plan. Decisions regarding the prioritization of proposed
capital improvements should be directly based on the guidance provided in this Plan and in the
Comprehensive Plan. As a general rule, our goal is to balance the rehabilitation of the existing system
with the expansion of the system to enable growth. This Master Plan envisions approximately $2 million
per year to be expended in rehabilitation projects, which will adequately keep pace with our aging
infrastructure. However, when we reach the point that all the clay tile collection lines are replaced with
PVC, this level of spending must be revisited, since PVC has a much longer expected service life.
Special projects, programs, and initiatives
Special projects, programs, and initiatives include initiating or adjusting City programs, inter-local
agreements, citizen participation programs, training, and other types of special projects that will further
the successful implementation of this plan. Some specific issues that will affect the content of this plan
include:
o Bio-Corridor: College Station and Bryan are considering creation of a Municipal District in the
area north of Easterwood Airport, to share revenue to support creation of a Bio-Corridor. To
reduce sewer infrastructure costs, the two cities are considering a CCN swap, whereby Bryan
would serve sewer in this Bio-Corridor, and College Station would serve sewer an area at Hwy
30 and Hwy 158. If this occurs, future infrastructure locations will change.
o Texas A&M is considering a contract with BEPA to install a Digester at the TAMU Wastewater
Treatment Plant - we will monitor this new technology to see if it turns out to be economically
viable.
EXHIBIT B
o Renewable Energy Credits (REC): If we switch to anaerobic treatment, methane gas is a by-
product, which could be used to co-generate electricity. This would provide revenue and
valuable RECs for the City.
o We continue our commitment to Odor control - in evaluating the various options for
wastewater treatment; we must give odor control a high priority.
o If the City decides to annex the Wellborn area, then a $3.3 million capital project must be added
to the short-term plan. This project will not generate significant revenue, and will create rate
pressure that could make other project funding more difficult.
o The City has a one-acre minimum lot size for subdivision in the ETJ, and given the difficulty of
annexation, this could mean that most development outside the current City limits will use on-
site sewer facilities.
Plan Administration
The development of this Plan involved time and input by various agencies, departments, staff, and
stakeholders. These parties must maintain their commitment and be given opportunities to remain
involved to successfully implement this Plan. Most importantly, the plan must remain relevant,
addressing the needs of today while preparing for those of the future. The City's Comprehensive Plan is
built on the assumption that the City's various neighborhood, corridor, district, and master plans expect
nothing less. It is critical that the City Council remain active in monitoring and evaluating the Plan and
where necessary, making adjustments.
Monitoring & Evaluation
As part of any planning process, on-going evaluation must be incorporated into the implementation
program. Continued evaluation of conditions and opportunities associated with the City's wastewater
system allows the plan to adapt and remain relevant over the course of the Plan's life. Successful
evaluation incorporates the establishment of descriptive indicators that track the efficacy of the
proposed actions, understanding changed conditions, and potential reprioritization of actions and
funding based on the findings of the evaluation.
Annual Report
To ensure the on-going relevance of the Wastewater Master Plan, the Plan should be evaluated
annually. This annual evaluation should include at least the following components:
• Updated existing conditions;
• Progress toward reaching goals, as determined through specific indicators;
• Report on any completed actions;
• Status updates of all actions underway for the current implementation period;
• Outline of remaining actions scheduled for the remainder of the current implementation period;
• Potential changes to costs, and
• Recommendations for changes in implementation schedule or actions.
EXHIBIT B
• Stakeholders, the Planning and Zoning Commission, and the City Council should be involved in
the annual review of the Plan.
Interim Amendments
Occasionally, it may be necessary to consider a minor amendment independent of the annual review. In
such instances, the amendments should be tested for consistency with the goals stated in this Plan as
well as the Comprehensive Plan. Specific care should be used to guard against changes that are site-
specific that could negatively impact adjacent areas and uses. Factors worth considering when
processing such interim amendments should at a minimum include:
• Consistency with the goals and strategies set forth in this Plan and the Comprehensive Plan;
• Further the objectives of the Future Land Use & Character Plan, the Thoroughfare Plan, and any
adopted neighborhood, corridor, or district plan;
• Promote a land use pattern compatible with the surrounding area;
• Impact on other infrastructure systems;
• Impact on the City's ability to fund and maintain the necessary service;
• Impact on environmentally sensitive and natural areas, and
• Contribution to the overall direction and character of the community as captured in the
Comprehensive Plan's vision and goals.
Five-Year Update
An evaluation and appraisal report should be prepared every five years by the City with input from
various department, the Planning and Zoning Commission, stakeholders, and any other appropriate
boards and commissions. The report should involve evaluation of the existing plan and assessing how
successful it has been in achieving the stated goals. The purpose of the report is to identify the
successes and shortcomings of the Plan, consider changing conditions, and recommend appropriate
modifications; at a detail much more substantial than that associated with the annual review.
At a minimum, this report should include detailed information on the following:
• Major actions and interim plan amendments undertaken over the preceding five years;
• Major wastewater-related trends in the community and how these have changed over time;
• Changes in the assumptions and base study data, and
• Ability of the Plan to continue to support progress toward achieving the community's goals
EXHIBIT B
EXHIBIT B
.y.
CITY OF COLLEGE STATION
4r a
r '
Ze-
r
4
.
F ~
~ ,tom r~ 3. , • ` _ ~ _
oaf
E a
T-
a
fill
iJ ?
~.'71M.-~B~a. ~.c ~ ~,yL 'z~~St .J.a .R ` ~~i~.'. '2 x.• ~ t~e ~a
its r..l%d ~ -.~l ro _ ~ e Wi k~ r~~ pp t ~4' ~ s,rv.. zr 0•
- r1 s•1
z, { t a f` ter"
y°~
City 1 College 1 Collection System Evaluation
TM- 1: Temporary Flow Monitoring
HDR • Registration No. F-754
November
EXHIBIT E
November 03, 2010
Mr. Stephen Maldonado, Jr.
City of College Station
Water Services Department
PO Box 9960
College Station, TX 77842
Re: Final TM-1: Temporary Flow Monitoring Report
HDR Project No. 130642
Dear Stephen:
We are pleased to provide you with the final version of the 7M-1: Temporan Flow Mohitorir'rl; Report for the
Task 5.0: Wastewater Collection System Evaluation Project. We sincerely appreciate the participation and
assistance that we received from you and your staff during equipment installation, data collection and '
development of this TM.
This TM documents the-flow-monitoring activities and summarizes the data results. The data are used to
calibrate the InfoSewer model, developed as part of this project. The model development and system analysis
are discussed in a subsequent TM-2.-
Should you or your staff ever have questions or comments regarding this report, please do not hesitate to
contact us.
Sincerely,
HDR ENGINEERING, INC.
Sharon M. Miller, P.E.
Project Manager
OF TF-Igcritl
• A....
SHRON M .,MILLER
•~102798,
s5, ~r
t "~3/ro
RDREngineering, Inc. 17111 Preston Road Phone: (9721960-4400
Suite 200 Fax: 1972) 960,447
Dallas. TX 75248-1232 vmvhdrinc.com
EXHIBIT B
Table of Contents
1.0 Purpose And Scope ................................................................................................................1
2.0 System Description .................................................................................................................1
3.0 Data Acquistion ...................................................................................................................3
3.1 Sub-Basin Identification ..................................................................................................3
3.2 Flow Meter Installation ....................................................................................................3
3.3 Flow Meter Locations .....................................................................................................3
3.4 Rain Gauge Locations ....................................................................................................6
3.5 Flow Meter Calibration ....................................................................................................7
3.6 Flow Meter And Rain Gauge Data Collection .................................................................7
3.7 Flow Meter And Rain Gauge Maintenance .....................................................................8
3.8 Additional Data Acquisition .............................................................................................8
3.9 Load Allocation .........................................................................................................8
4.0 Data Analysis ...................................................................................................................9
4.1 Dry Weather Results ....................................................................................................13
4.2 Wet Weather Results ....................................................................................................15
5.0 Conclusion .................................................................................................................18
List of Figures
Figure 1: Collection System Summary - Pipe Length .....................................................................2
Figure 2: Collection System Summary - Pipe Material ...................................................................2
Figure 3: Sub-Basin And System Boundaries .................................................................................4
Figure 4: Flow Monitoring And Rain Gauge Locations ....................................................................5
Figure 5: Average Monthly Rainfall For College Station, Tx ...........................................................9
Figure 6: Rainfall Profile ................................................................................................................10
Figure 7: Sub-Basin Drainage Schematics ...................................................................................12
Figure 8: Wet Weather Flow For Manhole Q34A1 M031 ...............................................................15
Figure 9: Peak Flow Comparison ..................................................................................................17
List of Tables
Table 1: Flow Monitor Location .......................................................................................................6
Table 2: Rain Gauge Locations .......................................................................................................7
Table 3: Combined Basin Contributions ........................................................................................11
Table 4: Dry Weather Flow Monitoring ..........................................................................................14
Table 5: Wet Weather Flow Monitoring .........................................................................................16
List of Appendix
Appendix A - Flow Monitoring Hydrographs
Page i
CII\'OF ~,(II LFL:Ii STAII(.(~
f' J.lmm.~ idr &~e..l~ tw11.~
EXHIBIT B
1.0 PURPOSE AND SCOPE
The Temporary Flow Monitoring Technical Memorandum (TM-1) has been prepared as part of the
City of College Station (City) Wastewater Collection System Evaluation project. From December
5, 2009 to February 8, 2010, an evaluation of the wastewater collection system flow was
performed. The purpose of this report is to summarize the flow monitoring activities performed,
the data collected and dry and wet weather characteristics that will be used to calibrate the
hydraulic model of the collection system. In order to accomplish this task, HDR performed the
following:
• Identified sub-basins for the Carters Creek (CC) and Lick Creek (LC) sewer sheds.
• Delineated monitor service areas and locations within the collection system.
• Installed, with assistance from the City, 15 temporary flow meters and 4 temporary rain
gauges and collected the data.
• Collected data from 4 permanent flow monitors and 5 rain gauges that the City owns.
• Prepared wastewater flow hydrographs representing the findings in time versus flow format
(See Appendix A). These hydrographs also represent rainfall activity.
The data summarized in this TM-1 will be used to calibrate the InfoSewer model for the City
wastewater collection system. The model development, calibration and capacity analysis of the
infrastructure will be documented in a subsequent TM-2.
2.0 SYSTEM DESCRIPTION
The City owns, operates, and maintains a wastewater collection, treatment and disposal system
that provides sewer service to approximately 78,000 residents and businesses. The collection
system consists of approximately 300 miles of gravity sewers, ranging in size from 4-inch to 48-
inch diameter, and approximately 7 miles of force mains, ranging in size from 2-inch to 24- inch
diameter. Figure 1 presents a summary of pipe sizes and Figure 2 presents a summary of pipe
materials.
Page ~1
7Gm oe GluSCe. S rnnim
* rlv F.,rn of Jr ,Wr.nlfull:
A
EXHIBIT B
30" 36"
24" 27" 1.4% 0.4% 48"
21" 0.8% 0.3%
16.. 1.8% ~ I
0.7%
15" 18"
3.4%' 5.3%
12"
6.3% NWI
10"
kAs" 6..
4.5% 49.1%
8"
24.9%
i~ MW9%~
FIGURE 1: COLLECTION SYSTEM SUMMARY - PIPE LENGTH
17 RCP ❑ Unreinforced ❑ HDPE
Concrete Pipe 0.8%
■ Ductile Iron 0.8% 1 ❑ Cast Iron
5.4% I 0.5%
I
i
Vitrified Clay
34.8% PVC
56.5%
z
;y
FIGURE 2: COLLECTION SYSTEM SUMMARY - PIPE MATERIAL
/ Page 12
7 oFCA)MECESrnn0m
1DR * ..e....~d.z,..me .y
EXHIBIT B
3.0 DATA ACQUISTION
3.1 SUB-BASIN IDENTIFICATION
The City provided HDR with GIS data of the collection system and topography. HDR delineated
the drainage pattern into a total of nine sub-basins for the Carters Creek sewer shed and nine sub-
basins for the Lick Creek sewer shed. The sub-basins and system boundaries are shown on
Figure 3. HDR proposed flow monitoring locations to capture flow from each sub-basin, and those
locations, as shown on Figure 4, were accepted by City staff. The rain gauge locations were
chosen in an effort to capture rainfall data in various sub-basins should an event take place in one
part of the City and not over the entire watershed. Secured locations that were owned by the City
were used as rain gauge monitoring sites to minimize the risk of damage and/or vandalism.
3.2 FLOW METER INSTALLATION
Prior to the flow meter installation, a
manhole inspection of the proposed
locations was performed by HDR and
City personnel to determine
accessibility, manhole condition, piping.
configuration, and flow and debris
Y i
characteristics. If a manhole condition w
was found to be unsatisfactory to 4
capture accurate data, the manholes
immediately upstream or downstream
were inspected to find a suitable
alternative location. The final flow
monitoring and rain gauge locations are discussed in the following sections. Jetting of the pipe
lines upstream and downstream of the manhole was accomplished by the City prior to meter
installation. HDR, with assistance from the City, installed the flow meters and rain gauges.
3.3 FLOW METER LOCATIONS
Fourteen Flo-Dar meters, and one Flo-Tote III meter were rented and installed by HDR and the
City from December 2 to 4, 2009. The rental units were supplemented by four Flo-Dar meters
owned by the City. The Flo-Tote III meter was installed at manhole Q35B1 M043 due to the
manhole configuration causing turbulent flow conditions. The initial flow monitoring schedule was
Page 13
Cn r 011-Mir S rATh)~
A
Z Z
Z- C)
to 0 C) C) C)
C) 0 _0 70 m m
C O
L U (D (1) '0
Y .C C y 0 O C O s ~ O
F
M C X Y X CL CL
Y m a m N
o N
7 CI)
~.N 3 C Uw Uw a,a te "
O w W
O Gs Z5a ~ ~a 9 E U) 1,
Z5 -9 z m
CO t -0 >1 .I
L) L) Z E
U >
E L)
U iD U cn U w LO 65
~ 0 ~ ~~i co a)
N N~ Z
Cni
00 L.Al
i
, V
y
W z.; ^y
r W oZ
T
_ v
c a .
1 rY 5
/
A
o9
1.'
1
ac,
C x
4j;
tip Jeoei•o••E id I ooe
ICJIIA ]i Ul 11011A
r
7TL
cil
i ~ h4 S
I <
7
EXHIBIT B
to collect data for 30 days. However, a wet weather event was not captured during this time
period and the monitoring was extended for an additional 30 days. By the end of the 60-day
period, a desirable rainfall event to use for wet weather analysis occurred. The locations of the
flow monitors are listed in Table 1 and shown on Figure 4.
TABLE 1: FLOW MONITOR LOCATION
MANHOLE ID MONITOR OWNERSHIP SUB-BASIN
P32A21VI016 CITY CC1
P3361 M003 HDR-rental CC1
Q34A1 M022 HDR-rental CC2
Q34A1 M031 HDR-rental CC2
Q34132M025 CITY CC1/CC2
Q3462M026 CITY CC1/CC2
Q34621VI027 CITY CC3
Q35A21VI009 HDR-rental CC6
Q35A2M044 HDR-rental CC7
Q35131 M008 HDR-rental CC8
Q35131 M009 HDR-rental CC5
Q35611VI043 HDR-rental CC4
Q3562M037 HDR-rental CC9
R38A21VI021 HDR-rental LC2
R40A21VI003 HDR-rental LC5
S3862M013 HDR-rental LC4/LC6
S41 B1 M002 HDR-rental LC8
T39131 M031 HDR-rental LC7
T391321VI002 HDR-rental LC9
Q35A2M015 HDR-rental CC5
3.4 RAIN GAUGE LOCATIONS
Four rain gauges were rented and installed at the same time as the flow meters, supplemented by
five rain gauges owned by the City, and one National Weather Service (NWS) official rain station.
Six rain gauges as part of the Community Collaborative Rain, Hail and Snow Network
(CoCoRaHS), was used for validation of the rain gauges installed during this project. The
locations are listed in Table 2 and are shown on Figure 4.
Page 16
EXHIBIT B
TABLE 2: RAIN GAUGE LOCATIONS
DESCRIPTION LOCATION OWNER
1 LCWWTP Lick Creek WWTP CITY - Existing
2 CCWWTP Carters Creek WWTP CITY - Existing
3 Easterwood Field - Airport Raymond Stotzer & Harvey Mitchell NWS - Existing
4 Water Tower Park PI & Holleman Dr CITY - Existing
5 Forestry Building Rock Prairie Rd CITY - Portable
6 DRPS Rain Gauge Jones-Butler and Dowling Rd CITY - Existing
7 Southwood Athletic Complex Rock Prairie Rd & Arnold Rd HDR - Rental
8 Veterans Park Harvey Rd & University Dr HDR - Rental
9 Hensel Park LS Hensel Dr HDR - Rental
10 Creek Meadows Lift Station Greens Prairie Tr & Royder Rd HDR - Rental
11 TX-BZS-4 405 Fall Circle, 77840 CoCoRaHS*
12 TX-BZS-12 1105 Coeburn Ct, 77845 CoCoRaHS*
13 TX-BZS-17 8606 Jade Dr, 77845 CoCoRaHS*
14 TX-BZS-20 2513 Merrimac Ct, 77845 CoCoRaHS*
15 TX-BZS-42 Bizzell St, 77840 CoCoRaHS*
16 TX-BZS-43 200 Gichrist Ave, 77840 CoCoRaHS*
*Community Collaborative Rain, Hail, and Snow Network (www.cocorahs.org)
3.5 FLOW METER CALIBRATION
Upon installation, each flow meter was calibrated by HDR to ensure accurate wastewater flow
recording. The distance from the monitor itself to the invert of the pipe was measured and used to
calibrate the flow monitor. In addition, a velocity measurement was taken before and after each
meter was installed using a portable velocity meter provided by Hach. With the Flo-Dar connected
to a laptop computer in the field, real-time velocity and flow level readings with the flow meters
were recorded using the Flo-Ware software and compared to the manual measurements of level
and velocity. If the readings were within 0.2 fps for velocity and 0.5 inches for water level, no
further calibration was needed. If the readings were not comparable, manual adjustments were
made in the software until the readings were within the acceptable ranges for velocity and water
level.
3.6 FLOW METER AND RAIN GAUGE DATA COLLECTION
The City was responsible for weekly downloads of the data from the flow meters and rain gauges.
The City staff exported the raw data into excel spreadsheets and uploaded the spreadsheets to
the project's FTP site for HDR to review.
Page 17
IT,*~ ~`-IIF C11111 I: S'1.411 t\
l.c bn..fdr W..m 1, I-;illr~
EXHIBIT B
3.7 FLOW METER AND RAIN GAUGE MAINTENANCE
The City was responsible for the maintenance of the flow monitors and rain gauges. The City
changed the batteries in the units and cleaned sensors as needed. Overall, the flow metering
equipment performed as intended, with the following exceptions:
• The Flo-Tote III data logger for manhole Q3561 M043 was replaced on January 13, 2010,
due to the data logger no longer communicating with the City's laptop. This prohibited
downloading of data from the meter. The equipment performed normally for the remainder
of the monitoring period.
• The pressure transmitter for the Flo-Dar meter in manhole Q34132M026 was not working
properly, causing erroneous readings. The Flo-Dar meter was replaced on January 13,
2010, and performed normally for the remainder of the monitoring period.
• Data were not recorded for manhole P33B1 M003 from January 1 to January 4, 2010. The
City provided maintenance of this flow meter and the meter performed normally for the
remainder of the monitoring period.
• Portions of the rainfall data from December 29, 2009 to January 23, 2010, were
unavailable due to equipment malfunctions. The City was able to perform maintenance
and repair and had all rain gauges functional on January 24, 2010. This period was mainly
dry weather flow and the loss of these data did not adversely affect the model analysis.
3.8 ADDITIONAL DATA ACQUISITION
In addition to the flow monitors, historical plant flow data from Carters Creek and Lick Creek
Wastewater Treatment Plants (WWTPs) were obtained from January 1, 2000 to February 9, 2010,
using SCADA information. Pump runtime information was obtained from September 9, 2009 to
February 9, 2010, for Lift Station #2, Lift Station #3, Hensel Park Lift Station, and Fox Fire Lift
Station using SCADA information. Additional rain gauge data were obtained from the NWS station
located at Easterwood Field for the period of December 5, 2009 to February 9, 2010, and from 6
sites across the City as part of the CoCoRaHS network.
3.9 LOAD ALLOCATION
While the overall flow to each wastewater treatment plant is known by historical plant flow records,
a capacity analysis of the collection system requires knowing the flow produced by each sub-
basin. For the existing service area, the flow monitoring data per sub-basin will be used to
determine loading on the collection system. The flow monitoring data will be compared to the
Page 18
,Ill l )F Cow-cl S ra lnm
HUR
EXHIBIT B
plant flow historical records for validation. For the future service areas, flows will be projected
based on the land use designations for each parcel as prescribed by the City's 2009
Comprehensive Plan. How the load allocation is applied to the City's collection system model will
be further discussed as part of the model development in the subsequent TM-2.
4.0 DATA ANALYSIS
Wastewater flow data were obtained for both WWTPs and the 20 flow monitors in order to
establish flow hydraulics for each of the sub-basins within the collection system. Rainfall totals
from 10 rainfall gauges were evaluated as part of the analysis. The normal rainfall totals for
College Station are shown graphically in Figure 5.
Average Monthly Rainfall
6.00
5.00
4.00
3.00
c
of0e 2.00
1.00 - -
0.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month
■ NWS 2000-2009 Mean NCDC 1971-2000 Mean
FIGURE 5: AVERAGE MONTHLY RAINFALL FOR COLLEGE STATION, TX
The total rainfall received for December 2009 was 2.81 inches, or -0.42 inches below average rainfall
based on the NCDC record. The total rainfall received for January 2010 was 2.93 inches, or -0.39
inches below average rainfall. The point source rainfall data were averaged across the basins using
GIS analysis tools to create a rainfall profile as shown in Figure 6. This profile will be used in the
model for wet weather calibration.
1 Page 19
~.IIS" OF U) EcE STAnJA
*.~Av AvnofJ..~..rzb l:dk~
EXHIBIT B
s q. .
c=N
tr y1,6, ~ I l..
1 _ t Tye p y
A3Ty
p~ ~ 1`6y6f ~~OA
Nd µ
~l h 4
~ P I
I i t ~ F„a~Emw w /
Y °a Su
QP _ pia fi°_ I o
` 06.
2 i r i' o
r
!n C R S J
a
FIGURE 6: RAINFALL PROFILE
Page 110
~~7. Crrr uF Couw;e S'I:Knon
ilv hn•i nJ J. Rv..~/: IN/ln
EXHIBIT B
Figures 7 presents the wastewater schematic diagrams that graphically represent the association
between each sub-basin and the flow meters placed in the collection system. For example, to
determine the individual flow from Sub-basin LC3 (known as discrete flow), one must take the
pumping data from Lift Station #2 and subtract the data recorded by meter R38A21VI021 (known as
cumulative flow). Discrete flow is typically used to determine the individual wastewater contribution
by area. However; for this project, a few basin contributions were combined as listed in Table 3.
TABLE 3: COMBINED BASIN CONTRIBUTIONS
COMBINED BASINS DESCRIPTION
CC91LC1 To determine LC1, LS#1 data would need to be used. Lift station run times versus
continuous flow monitoring limits the ability to accurately calculate discrete wastewater flows.
LC21LC3 To reduce the number of flow monitors needed for the project, and due to the small size of
the basins, these two basins were combined.
LC41LC6 To reduce the number of flow monitors needed for the project, and due to the similar land
use within the basins, these two basins were combined.
Page X11
~1 " C`v or 011 LEe Sian
f.
N
UI
Ql
N
a
z
a ~ ~ I 1 a
S
m
a ~
a
Q
pr
o a
8
~ f
i
U ~ av~
F
Q p
W_ V ^m
U
N o
W
m 2 i
m 0 e¢z
Z aa~
X N
W Q
m
m
r~
C7
LL
`o
i
w
N
O
m 0
N ~ Z
Et
y~
~+a
J
C O O
0
F1 2
EXHIBIT B
4.1 DRY WEATHER RESULTS
After review of all the rainfall data from the 60-day monitoring period, the data set of January 24 to
January 27, 2010, was deemed the most representative of dry weather flow conditions with low
groundwater potential. The data set from December 16, 2009 to January 19, 2010, was excluded
from consideration of representative dry weather flow conditions, as this was the winter break
period of Texas A&M University and; therefore, would not include the effect that the student
population has on flow.
Dry weather data for each metering site are summarized in Table 4. The cumulative flow from the
flow monitoring sites compared to the wastewater treatment plants influent flows agree within 5 to
10%. In general, the velocities recorded are sufficient to prevent deposition of solids. However,
S41 B1 M002, located in Sub-Basin LC8, exhibited velocities well below 1.0 fps which is not
sufficient to prevent debris accumulation. None of the metering sites were observed to surcharge
during dry weather.
Page 113
7. C.m~r (buFCe STanuN
A.
a
m Na ~ m o m a m o _
J O N m ~ M ~ N ~ N ~
O O O O N M O 0:
m
N
_ CL
J O O O O O N N m V N
O O O O N N N O O
^ O O ti ^ N N m N O
J m m ~ ~ a m m a
O O O ~ N N ^ O
W tN+l ON O N N W N oml 'L~ m
J U
O O O N V ^ N O
O v m a m mo m
J Vl m N m m ~ lm/1 O m V
O O O O ^ m m .y O
J J O o m ~ a m N m
O O M ^ N 'y O
m ,mn m m
J a v m m ^ o m
U o 0 0 tri ~ ni ~ o
°p rv m m n n m o N ~ n e
U N N O m N N m h .i N O
O U O N VI V
1~ n N O N tD
Z U O O O ti m m O
0 O
O O
n
vmi v^i rv m vmi
O U N
U O N Ny m O
O c
J _
m LL
u m m tmv m umi, lD N m rv r
W u
m Q
= W
X U m m ti N N m rn m
W y u o 0 0 0 e n o
K
c
m
W N N O m m m m T m m O
m U p O O O m V O
a
F
U U N m m V ^ NO m m
q a ^ .m: ti
U c O .i m N
U ~
m o m N °m m m o_
e m m o
u U N c o 1~ m N m m m m
D D
o m $ p ^
1~ O O m O N ^ N
U O O N m N O
N ^ N m troll O m N N H M
N O O ~ N N
U O O O O N V M N r-I O yy
N O m ^ N O .m-i p 0 0 G F[i
U .-I O O 'i N m N O F
ra
V U
u W Om0 N toil N r m
U O O O N m tD ~,y N O
m m
-6 -6
U a O E
m W ^
a 3 > E E o w = c m 3 to
o ¢ m 3 3 v ~ > w ~
N r LL - E LL LL v to > n LL
m ~ 0 3 E E A ~ ~ E ~
3 a m E E i ° a' E E ~ o
~ D ~ x n c x
0 0
EXHIBIT B
4.2 WET WEATHER RESULTS
A significant wet weather event was captured with flow monitoring and rainfall data on January 28
and 29, 2010. Figure 8 presents an example of the impact the storm event had on a portion of the
Carters Creek Sub-Basin CC2 collection system flow. In this example, flows increase rapidly from
a dry weather average of 1.03 mgd to a peak of 9.67 mgd.
Q34A1M031 (CC2)
20 o
18', 0.1
16 0.2
i
14 ; 0.3
I
12 0.4
I
"13 CL
00 10 i c
0.5
'u
t3oi J 8 0.6
I
>
6 0.7
4 0.8
2 0.9
0 1
1/27/2010 1/28/2010 1/29/2010 1/30/2010 1/31/2010
Date
Flow (mgd) Velocity (fps) Level (in) Rainfall (In)
FIGURE 8: WET WEATHER FLOW FOR MANHOLE Q34A1M031
The wet weather analysis summarizes the system responses during the observed wet weather
event. The analysis determines the volume of wet weather infiltration and inflow (1/1) that enters the
collection system during the storm event, known as the rainfall dependent infiltration/inflow (RDII).
Table 5 shows a summary of the findings in comparison to dry weather conditions.
Page 115
Av Ae-Jd. Rev.n/' 4lky
m
d
m ° m N m m d m n m ul ti ,y ~ ,y m d
c c c c
e o 2° o e a o 0 2° g m 2° a
m m m m m n o n o o Q
c c c c m m m o Q o 0 o d o
O O O N O O O O O O O O O O
n Q N m o m o m ^I N m
m \ m \ m ul n O O ~O O O ° n m
C C c o O .v O O ci O O
m m n o ~ 0 0 o m d
rv o o n m 0 o m m o 0 0 0 0 0 0
6 0 0 0 c < o o 0 0 0 0 6 0 0 0 0 0 0
N m _ _ Q n d d o m o o o d m
d N ~ ~ O m N m O N O O O O O
O O O c c O O O O O O O O O O O O
e a ~ ;e c o ~ a° e N e a°
00 0 ° m v n ° m ° d N d o
no o No ^ °o ~ m o °o ~ °o °o ~ m o
m in m m n m d irv a N m
W m m m d m m m m m m ~n ° °
v, m m o m Q o? Q m d v m m
m m in m
N lp n tp n ~O n N m m d
M N ul N N N N
m M n Y1 M O m M N m m m q n lD Lq In YI V N N M O tD M N N O O
z
- M O m N m ~ ~ ~ d ~ m M ~ m
Q m m tD n n N Vf Q ~ m d m ~ n M
r N m ~ N O ° d d n N N O O O
z
Q
3 D v m Q m N m N
O m Q m Q O ~O O ip M m n
rN C N C C M O n n m ° M m Q
W J\ ° m N N n m m ~O d ~ d m
M~
2 r N ~ p d n Q d N O O O Q m
O O O O O
X Q~ Q Y1 -i m d O m N m n N
W W O O O O O O O O O O O O O O O
3
3 m O M n n n N m O m m ~ m Q °
n N O N O Q O n N Q Q m O m m O N Q
N O N Q N O O M Q O N •-1 ° ° ~
w
J
m -
Q
F-
Q N N N N m O M _
N m n M N N n m N
N N O M l0 O O M N l0 O O
lO n n N O O N M W O O O O O _
N N N N N N N N N N N N
a
2 o
m m m ° m m rv° °m o m .N+ m m o m o a
~O n m o?. c a `m
N N N N N N N N N N -
V O -
E ° o E v
v' E - a E o _
o m« o o f .o o m m-
OT/6Z/1-01/8Z/1
Ewc -o 0
E 2% c m z m c° E> > o c_
m ~n d m ~ O d N n m m O d N 3 a i ~
m °m m m m m ° o rv M m c° a m °i 3 c `t E E n
do c c d ~ ~ ~ o N m N i o n E~° n« E -
c c t - w 0-E' A p o :n .E
o 0 0 0 u~ o ~n o o ~n v? 0 0 0 0 0 0 0 `o a o I. E 3 E` E A E o
O M m d ~p N <0 N N W O N W Q t0 2 O H Z, O 'O E E ° ? U .n
m " ti m a l o n 1 E x« u O
N E O y- I q S
wE w°
0p E
U U U U N V U V V U U p~ N m O V) U V U c j Z A c E q d
U _ > 3 E„
u u u N V u u u u u u u d
U u u u u
E `a w o p d c .E m
I a E LL 1 1 a v
m M N ul m h I(1 m e m n M N N N m q q---- c /g,,,
p N m N N N Q O Q O M N O O O ui a m j 3 u E E c y"
O O O O O O O O O O O O O O O O O O O ca>_
N .•1 N N N N N N .-1 N N N N N N 7 LL = E E d a a a c •.~'_Ir~~l`•
mi,
¢ m ¢ ¢ m m m m ¢ ¢ N m ¢ ¢ m m m m c N E'_ . x u u `u u~
N m Q e e e e In vi u+ In m o m m m-- N r
m m m m m m m m m m d m e m p~mu'~.P, iaa ooom
a a C d d C C C U C O d U m umi r r
EXHIBIT B
The major issue with wet weather inflow is the inability of the system to transport the peak flow rates
resulting from the influx of extraneous infiltration/inflow. Peak flows do not generally have long
durations, but even short durations may create surcharge conditions which could result in sanitary
sewer overflows (SSOs). While no SSOs were documented in association with the January 28 storm
event, this storm event caused an approximate peaking factor of 6 in manhole Q35A2M015, which
services Carters Creek Sub-Basin CC5, and an approximate peaking factor of 5 in manhole
Q34A1 M031, which services Carters Creek Sub-Basin CC2. Figure 9 presents a summary of peak
flow rates recorded during the storm event compared to the maximum flow rate recorded during the
representative dry weather period for the sub-basins. As one would expect, the older sewer system
in the Carters Creek sewer shed exhibits a higher response to RDII than the newer sewer system in
the Lick Creek sewer shed.
12.00
10.00
8.00
0
l7
6.00
c LL
Y
f0
G1
a 4.00
2.00
0.00 M=Ln
XL GAO G1 Cq' G°'
L L L L~~~~~~~L L L L L L L0 G°' C~ P
-L
Sub-Basin
■ Dry Weather ■ Wet Weather
FIGURE 9: PEAK FLOW COMPARISON
Page 117
~.Il} llh 0 ILLL ASISI11\
EXHIBIT B
5.0 CONCLUSION
The monitoring period of December 5, 2009 to February 8, 2010, resulted in successful data
collection of dry and wet weather events that can be used for hydraulic model calibration. No
further monitoring is needed to develop the model.
While a complete 1/1 study is not part of the scope for this project, the sub-basins that exhibit high
peaking factors will be included as part of the capacity analysis as performed with the InfoSewer
model. Recommendations put forth as part of the capacity analysis will be included in the
subsequent TM-2.
Page 118
®
I~7 (,Itti YOF L(II..I.F.c:f. 5'Ihtti)N
dF.an uJJ+R.,..b Felh
A
EXHIBIT B
APPENDIX A
Flow Monitoring Hydrographs
Appendix A
~ e l01 1 ut G ILLFIA SLA31
O
O
N
'-I
0
0
N
_ ry
C
w
C_
O ~
~ K
O I
~ I
N I
c
v
o ~
O J
\
H ~ a
-m o I o
X N o
W Q N u
N \ o
!Y1 " v
a ~ >
I
o
r4 bD
E
N
r 4l
\ 3
~
LL
O I
O
N
m
\
N
r-1
01
O
O
N
m
O O O O O O N
in O
N NO H O~
(ui)lanal
(sd;) AIPORA
(pow) MOIj
(u!) Ile;ulea
N N M U1 l0 f- 00 a1 O
O O O O O O O O O O .--1
O
N
N
N
N
O
O
N
e\-1
N
C
(0
C_
O ~
O
i
N '
N
C
-
O >
rl 0J
O J
u N
P•I N
1
m o c
o Y
W m N _o
M rq
M N ~
I
o
O -p
N d0
E
N
r 3
o
LL
O
O
N
M
N
O
N
M
00 t0 V N O 00 w V N O N
r-1 r-1 'i rl rl r-1
(ul)lanaj
(sd;) Ajpolan
(Pow) Mold
(ul) Ile;idea
e-i N M V In l0 r W 01 p
O O O O O O O O O O ~
O
N
N
e-1
N
I I ~ o
ci
O
N
N
I
O ~
O ~
N
N
GJ
1
v
J
N I
u N
u
H N ~
m N m Y
2 G O
X ~ O N
N I
W Q ~ ~
N
C
o
O E
0 3
o
M lL
\ I
O
O
O
N
M
r-1
N
r-1
O
O
N
m
O 00 LO V N O co t0 V N O \
N
N c-1 ri rl ci r1
(ul)lanaj
(sd;) AjpolaA
(P$w) Moll
(ul) Ile;ulea
H N M V ul l0 1~ W Cl O
O O O O O O O O O O
O
N
r-1
N
O
N
O
N
_ N
C
C
O ~
O I
rq I
N I
N
\ I
.-i
C
O ILI
i~ O J
u \
M N
W u ~
" N f
m I
N
CL
X - - o Y
W Q N U
N O
M v
>
Ch
!in O -p
N 00
\ E
r4 3
'-I Q
lL
m I
O
O
N
fit
M
N
\
N
01
O
O
N
M
co l0 V N O 00 t0 V N O ry
r-1 N .--1 r-1 r-1 c-I
(ul)Ianal
(sd;) AlpolaA
(Paul) MOIA
(u!) Ile;idea
.--1 N M Uf lO I- W Ol O
O O O O O O O O O O N
O
\
- N
O
24
C
f0
C
O
N ~
r-I
C
N - ° >
U o W
N
U
H ~ y
m f0
N
2 p ° Q
r-j
W O
N u
co 2
I
rn
o _
N t
\ to
N E
N
Q
LL
Ql I
O
O
N
M
- N
r-I
0
O
rv
co
O u1 O t!1 O t!1 O V1 O N
M M N N -4
(ul) laAOI
(sd;) AlPOlaA
(pow) molj
(ui) pepiea
ci N M V L!1 l0 1~ W Ol O
O O O O O O O O O O ~
O
N
N
N
O
N
O
N
N
C
(O
C
O ~
O ~
N ~
N ~
C
zz_
N ° >
~ o
m u \
m ~o o
N
`2 O O T
Z C ~ Y
c ° U
W N O
IdC - >
c I
rn
- o
° a
~ oC0
N C
\ v
N 3
'i o
- o
0
N
m
\
N
e-1
Ql
O
O
N
m
O Ln O LA O Ln O N
M N N r4
(ui)1anal
(sd;) AjpolaA
(Paw) mold
(ul) Ile;ulea
r-1 N M V ul 00 41 O
O O O O O O O O O O .--1 11
O
N
N
p
O
N
- N _
C
c0
w
C
O ~
O 1
N 1
O j
v
O J
M ~
u N
\
m u
r ^ Y
m o ~ a
a
X N o
W co
°
cr >
o
o ~
N E
2
LL
O I
O
N
m
\
N
O
O
N
M
O 00 l0 V N O 00 10 N O N\
N c-I r-1 r-1 r-1 r-1 N
(ul) lanai
(sd;) A3!:)ol8A
(paw) molj
(Ul) Ile;idea
rl N M V U1 t0 I- 00 Ol p
O O O O O O O O O O rl
O
N
e\-/
N
N
O
O
N
C
t0
w
C
O
N ~
N ~
N
O ~
N
O J
u \ I
u N
m u
m °o I
a
X N ° >
Q ~ Y
W p
I
O
O ~
°p
co
N E
rz,
3
_o
- LL
01 I
O
O
N
M
- N
N
O
O
N
M
O Ln O V1 O in O N\
en C-4 -1
(ul)lana1
(sd;) Alpolan
(pow) Mol j
(ul) Ile;ulea
1 rv m v In lp r ao o, O
0 0 0 0 0 0 0 0 0 0 4
O
I N
I
O
O
N
C
I I w
ca
_ O (O
~
O 1
\ 1
N 1
\ 1
C
O j
O J
LA N
N
\
m U
H ~n a,
m o I m
a
X N Y
W Q O u
111 o
\ >
am
O
O
N
N 3
i--I O
LL
O I
O
N
m
\
N
N
O
O
N
M
N
Oa M O N O Ln O V1 O \
r-1
(ul) Ianal
(sd;) A;!:)oIOA
(paw) MOIA
(ui) pe;uieb
e-1 N M V Lq lD I~ 00 01 O
O O O O O O O O O O
N
N
O
c-i
O
N
N
N
C
O cD
v:
- r-1 ~
O
N
N ~
C
- - v
o >
0 0J
O J
N ~
u
m u _ \
m O I o o_
2
X N ~
Q o
W u
N O
- -
c r ~ >
m
0
o ~
m
m E
~ O
U-
O I
O
N
M
r-1
N
r-1
O
O
N
M
00 t0 V N O 00 1D V N O ry
(w) Janaj
(sd;) AIPO aA
(pow) Mold
(ul) Ile;ulea
N m C Ln n o0 m O
O o 0 0 0 0 0 0 0 0 1 0
N
r-1
N
O
r-1
O
N
N
C
O ~
~ OC
O ~
N
N ~
C
N
O >
r-1
O J
V ~
m u
v
d
co
m o o
_ v
W co o u
L \ O
n~A/ N GJ
I I
O
O ~
~ d0
m
N E
_ N 3
i O
LL
Q1 I
O
O
N
m
\
N
r-1
01
O
O
N
M
O u, O LA O Ln O N
m N N 1-1 N N
(ul)lanal
(01) A3l3ol8A
(paw) molj
(ul) Ile;uleb
N N M V1 l0 I~ OD 0, O
O O O O O O O O O O O
N
N
I
O
.-i
O
N
r-1
N
(Q
w
O
O ~
N
N
C
>
O >
~ v
O J
N
v
m u _ \
v ~
M a
r
m o I o
a
W m oN u
LA \ O
M/ N v
c N
I I
I Ol
O
O ~
M E
N
3
~ O
LL
rn
O
O
N
M
r-1
N
I ~
I I I
p
O
N
M
\
O 01 00 I~ t0 Ln a M N .--1 O N
(ul)lana1
(sd;) AjpolaA
(pow) mold
(ul) Ile;idea
N N M [f t!1 l0 1~ cq 01 O
O O O O O O O O O O O
N
1\-1
- N
O
c-I
o r4
,\-I
N _
C
16
C
O m
O 1
N
n\i 1
rv 1
c
v
o >
~ GJ
O J
N
v
m u -
v
N
MM ~
L d
X N ° Y
W m r1l
r" _O
M v
I
C)
o
Mo
m ~
N
1„ 3
III LL
I O I
O
N
m
\
N
Q1
O
O
N
M
In O t!1 O In O N
N N .--1 '-1 a--1
(ul)lanal
(sd;) A3!:)olaA
(Pow) Molj
(ul) Ile;ulem
. i N M V Lq W 0, O
O O O O O O O O O O O
N
N
_ N
O
O
N
N _
C
N
C_
O ~
O
N
\ 1
~ C
I v
o
rq
N \
u N
m J \
v
41
m O o a
2 ~ V
X N o a
Q
W u
co r,4 O
0
o ~
r 00
_ N C
\ C
N 3
-4 ~
U-
O1 I
O
O
N
M
Jill N
01
O
N
M
Ln o v1 O 111 O N
N N .--4 H H
(ul)lanal
(sd;) A;l:)olaA
(P3w) molj
(ul) Ile;ulem
'i N M V V7 l0 I~ W M O
p O O O O O O O O O O
N
.\-1
N
O
O
N
r-1
N
w
C_
O cc
O 1
N
rv 1
N 1
C
O >
O J
i~ ry
N
u \
m J
N I W
O I m
m O o Q
X a ~ a a
O C o
W
N ~
H
I
01
O _
\ m
M
N E
r-1 O
N 3
2
O I
O
N
M
N
N
01
O
O
N
M
O Ol co I~ l0 Ln M N N O \
e-1 .--I
(ul)lanaj
(sd;) AjholaA
(pow) mold
(u!) Ile;uiea
,1 N m a Ui n O0 0, o
O o 0 0 0 0 0 0 0 o r+ o
N
N
O
ei
O
N
N
C
(0
C
O ~
.1 ~
O
\
N
C
>
V O J
N 3
\ ~ 1
m M C
rl
_ ~ O T
0
W N N o
m
00
M I
H
m
0
° v
~ ao
m E
N
N 3
H O
U
m I
O
O
N
m
r-1
N
Q1
O
O
N
m
N
Q1 00 I~ lD L!1 V m N ri O \
r-1
(ul)lana1
(sd;) A313olaA
(Paw) mold
(ul) Ile;ule»
e-i N M V Ui l0 I~ W 0, O
O O O O O O O O O O
O
N
r-1
N
O
O
N
C
f0
w
C
O
O ~
rv
N
N ~
C
zz_
O >
N
O J
i~ N
J .1
V-1 d
m O ~ ~ a
X rl o
W u
~ O
M r,4 N
14 >
I
- - - o 0
M
N E
N 3
LL
O I
O
N
M
N
O
O
N
M
O Q1 00 l0 Ln V M N O N
(ul)lanal
(sd;) AIPORA
(P2w) MOIA
(uI) Ile;ulea
.-I N m V V) lD 1~ CO 01 O
O O O O O O O O O O O
N
r-1
N
O
r-1
O
N
- N _
C
zz_
N
C
O ~
O 1
N
N 1
N 1
H i
C
>
O cu
J
O
CIS
00
N
J I ~
v
I_ N a,
m O c
K ~ o Y
m a
W
N ~
N ; >
I
m
0
o ~
~ 00
m ~
N
N 3
LL
O I
O
N
m
C,j
~-i
Q1
O
O
N
m
In v N o 00 w a N O
(ul)lanaj
(sd;) Ajpolaq
(Paw) mold
(ul) Ile;idea
rl N M V t1'1 l0 I~ W 41 O
O O O O O O O O O O e-I O
N
r\-1
N
O
O
N
N
- - C
f0
C_
O m
O
N ~
N
r-1
C
>
O >
~ N
O J
Q~ N
m U
J ~
F' N - d
Q.
~ w
X
W m N u
Q1
~ -
rn
O
o
\ o0
m
N
N 3
1 2
LL
O
N
m
Czj
41
O
0
N
M
N O N
l0 Ln co
N
(ul)lanal
(01) AlholaA
(Paw) mold
EXHIBIT B
ONE COMPANY
Many Solutions" Final Technical Memo
Wastewater Demand Analysis Report
To: David Coleman, PE - City of College Station 2010 Update
Stephen Maldonado, EIT - City of College Station
From: Sharon Miller, P.E.
CC: David Dunn, PE - HDR * • • • cA l~
Joel Cantwell, PE - HDR i
E
i HRON IIA
R
Job No: 130642 , - So ; A. 9 ILL
Date: May 10, 2011 ,I~~~`~F' iCFNS~p••~~
`5/17h~
INTRODUCTION
HDR Engineering, Inc. (HDR) was contracted by the City of College Station (City) in November
2009 to provide Professional Engineering Services relating to the City of College Station
Wastewater Collection System Evaluation. This Technical Memorandum (TM) addresses the
portion of the project scope that required an update to the Wastewater Demand Analysis Report
prepared by HDR in October 2008. ThisVpdate was necessary due to the adoption of the City's
2009 Comprehensive Plan on May 28, 2009, which significantly changed the City's land use
designations and projected development densities, expressed as Living Unit Equivalent/Acre
(LUE/A). LUE/A data are commonly used to project wastewater demands.
The wastewater demand projections presented herein are intended to be used for planning,
specifically to estimate when future wastewater treatment plant capacity will need to be added.
Action dates are based upon TCEQ rules that require planning for new treatment capacity to begin
when monthly average inflows for a wastewater plant exceed 75 percent of the plant's permitted
capacity for three consecutive months (30 TAC §305.126). The analysis presented herein is
intended to estimate the dates at which the TCEQ-mandated planning needs to be initiated by the
City.
All growth rates presented in this memorandum reflect data provided to HDR by the City's Planning
Services Department.
DATA COLLECTION
The following are updates to the data used in the October 2008 report:
• The wastewater treatment plant historical flow data was updated to the end of July 2010.
The sewer customer list was updated by the City to include existing data through the end of
December 2009.
• The City's new land use designations and the associated dwelling unit/acre (DU/A) replaced
the previous zoning, land use, and LUE/A values. Per the City Planning Services
Department, 1 LUE is equivalent to 1 DU.
• The City's Planning Services Department provided LUE/sub-basin data for the years 2000-
2010 (as of the end of June 2010), for year 2030, and for build-out conditions.
HDR Engineering, Inc. 17111 Preston Road, Ste 200 I Phone (972) 960-4400 I Page 1 of 14
Texas Registered Engineering Firm No. F-754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
• The flow data set has been reduced to the time period of July 2007 to July 2010 to more
accurately reflect current system flows.
• The analysis was updated to include only those existing service and future growth areas
within the City limit, which corresponds to the current CCN boundary. Per City ordinance,
the City is only required to provide sewer service within these boundary limitations.
• The areas of Williams Creek and Carter's Lake subdivisions are served by on-site
wastewater treatment systems (septic or lagoon systems), and are not included in the
analysis.
FLOW ANALYSIS METHODOLOGY
The existing CCN, City Limits, Carters Creek and Lick Creek Sewer Sheds, sub-basins and ETJ
boundaries remained unchanged for this update. These areas are shown in Figure 1.
UNIT WASTEWATER FLOW RATES
The previous analysis determined the unit wastewater flow rate on a per customer basis. For this
2010 update, a unit wastewater flow rate was determined based on LUEs. This flow rate was used
to determine the flow projections. The LUEs per sub-basin, as provided by the City, are listed in
Tables 1 and 2 for the Carters Creek and Lick Creek sewer sheds; respectively. The 2030 and
build-out LUEs did not account for infilling of vacant lots. Per direction from the City, HDR
calculated an average LUE/A per sub-basin, assigned each vacant lot these values, and assumed
infill of vacant lots would occur by 2030. The LUE values shown include residential DUs and
commercial LUEs.
TABLE 1: CARTERS CREEK LUE VALUES PER SUB-BASIN'
Year 2007 2008 2009 it 2030 Build-Out
Sub-Basin Area (as of June 30)
CC 1 5,204 5,537 5,698 5,747 8,509 14,516
CC 2 7,717 7,803 8,151 8,186 10,530 14,595
CC 3 1,373 1,373 1,373 1,373 1,562 1,915
CC 4 886 894 912 938 1,753 1,753
CC 5 5,452 5,454 5,460 5,470 5,620 5,620
CC 6 7,518 7,865 8,266 8,347 12,589 19,205
CC 7 4,884 4,894 4,907 4,907 5,778 5,778
CC 8 395 397 397 397 675 675
CC 9 868 877 878 879 1,210 1,396
LC 12,3 1,748 1,817 1,867 1,875 2,207 2,207
Infill of Vacant Lots4 - - - - 12,311 12,311
Total LUE 36,044 36,911 37,910 38,119 62,744 79,971
Source: City of College Station, Planning Services Department, Lindsay Kramer
2CC = Carters Creek, LC = Lick Creek
3LC1 sub-basin is pumped into CC9 sub-basin; therefore, the LC1 LUEs are added to the CC sewer shed
4HDR calculated value as directed by the City
HDR Engineering, Inc. 17111 Preston Road, Ste 200 I Phone (972) 9604400 Page 2 of 14
Texas Registered Engineering Firm No. F•754 Dallas, Texas 75248 www.hdrinc.com
N Z z' z
N a
C cC 7 O N F
r N co m m
W 70 'D w
a) a)
U) C)
` N ti c E p W Z W N
L (A co
Q1 Y ~ ~ a J m N ~ T ~ ws, ~ Q
u- m E J N U N C H N
U (n D cn co U w LO U)
O
N
(A
fn D Q ~ ~ u
t _
t ,
LLI
r w Z
i 6 J
EXHIBIT B
TABLE 2: LICK CREEK LUE VALUES PER SUB-BASIN'
Year 2007 2008 2009 2010 2030 Build-Out
Sub-Basin Area (as of June 30)
LC 12,3 - - - - - -
LC 2 1,781 2,043 2,173 2,369 3,131 3,131
LC 3 223 223 223 223 324 324
LC 4 873 1,018 1,113 1,275 4,333 5,410
LC 5 649 775 897 1,013 2,115 2,115
LC 6 201 214 221 254 333 442
LC 7 828 838 846 853 1,257 1,257
LC 8 428 483 498 515 1,936 2,023
LC 9 590 626 649 671 1,783 1,881
Infill of Vacant Lots4 - - - 8,046 8,046
Total LUE 5,573 6,220 6,620 7,173 23,258 24,629
Source: City of College Station, Planning Services Department, Lindsay Kramer
2CC = Carters Creek, LC = Lick Creek
3LC1 sub-basin is pumped into CC9 sub-basin; therefore, the LC1 LLIEs are included in the Carters Creek sewershed.
4HDR calculated value as directed by the City
Using the historical plant flow records and the historical LUEs listed in Tables 1 and 2, the unit
wastewater flow rates on a per LUE basis is determined to be:
• Carters Creek Sewer Shed:" 161 gpd/LUE
• Lick Creek Sewer Shed:""" 120 gpd/LUE
• Combined: 154 gpd/LUE
These unit flow rates were determined by first computing monthly average flows per LUE from the
daily average plant flow and LUE data provided by the City for July 1, 2007 through June 30, 2010.
TCEQ requirements for planning state that planning must commence when the monthly average
flow for three consecutive months exceeds 75 percent of the plant's rated capacity. For each
running three-month period analyzed, the smallest monthly average flow was selected. The "design"
flows were computed as the mean of these 3-month flows, plus one standard deviation. The
minimum average monthly flow of each running 3-month period was used because 75% of the
plant's capacity can be exceeded in two consecutive months, but not three. The standard deviation
was added to the mean of the minimum monthly flows to account for variability in the 3-month
minimums.
LUE DENSITY FOR PROJECTED GROWTH
The identified 18 sub-basins represent the existing sewer service area as of the writing of this
report. Figure 2 illustrates how the City is projected to grow over the next 10 years. The following
areas are excluded for consideration in this analysis:
• Future growth areas outside the current CCN boundaries
• Future growth areas on Texas A&M University (TAMU) property
• Future growth areas in which flow will be conveyed to the Valley Park Lift Station
• Future growth areas that currently have some residential development and are served by
the use of on-site wastewater treatment. These areas include the Carter's Lake and
Williams Creek subdivisions, and the area around Valley Park Lift Station.
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 I Page 4 of 14
Texas Registered Engineering Firm No. F-754 Dallas, Texas 75248 www.hdrinc.com
2
N
N
o
Q O o g c
N U N
L ~ C Z
W a H
`Z i/] N
W W J W C7 N d z N .0
W a a) a) o v
C7 H Q .a N' c) U) c)
w w 3
u. J W c L' L~ ~i uS 3CZ v e u
~Y
0 o offlo U)~ A0
L) W -j
a
J
N
J ~
CL M o /
y
l1 ~ N
r
~r J o
t J
i
i
Y
Vy ! a O
r.,
k~ o
4
P
os '6
i
U ti ~i N N
b~ ti~ C f0
~ 'm 3
o C r Vl
N
61
(0 C C
0 N 7
O fO
~c N
0 N
Z
n ~ V C
tSY,` ? U -
ao JI V O
h tioA~ ~ m
a F
w
_ O
Z.- 00
a s
CFO o
~ i e1
EK RD
U
0
EXHIBIT B
Table 3 lists the anticipated LUEs for growth areas outside the identified 18 sub-basins, but
included within the City limits.
TABLE 3. FUTURE GROWTH LUEs OUTSIDE OF IDENTIFIED SUB-BASINS'
2030 Area Build-Out LUE FFuture Area to Carters Creek 305 3,089
Future Area to Lick Creek 1,963 18,302
Source: City of College Station, Planning Services Department, Lindsay Kramer
The future LUEs within the identified Carters Creek and Lick Creek sub-basins as shown in Tables
1 and 2 include growth (i.e., development of vacant or unplatted lots) and potential redevelopment
of existing lots. Density data utilized by the City's Planning Services Department to project future
LUEs are shown in Appendix A.
The growth in LUEs from existing to those anticipated for 2030 represents a computed annual
growth rate of 2.6% for the Carters Creek Sewer Shed and 6.5% for the Lick Creek Sewer Shed.
PROJECTED WASTEWATER FLOWS
The unit wastewater flow rate per LUE was determined on an individual sewer shed basis and a
combined sewer shed basis using historical plant flow and LUE data. The data for Lick Creek and
Carters Creek sewer sheds need to be treated differently because of their different stages of
development. It is appropriate to use the individual sewer shed unit wastewater flow rate for
Carters Creek. The Carters Creek Sewer Shed is in the older section of the City, mostly built-out
and is a mixed development of residential, commercial and institutional. However, the Lick Creek
Sewer Shed is in the developing area of the City, and it is more appropriate to use the unit
wastewater flow rate for the combined Carters Creek and Lick Creek sewer sheds. Historically, the
Lick Creek sewer shed flows have been primarily from residential customers. However, the
Comprehensive Plan predicts a greater rate of commercial growth. Utilizing the unit flow rates from
the combed sewer sheds allows for consideration of the commercial component that is lacking in
the historical data for Lick Creek.
Using a unit wastewater flow rate of 161 gpd/LUE for Carters Creek, 154 gpd/LUE for Lick Creek,
and the annual growth rates, the anticipated design flows for the wastewater treatment plants were
calculated and are shown in Table 4. The "design flows" computed here are not flows for which the
plants might be designed in the future, but instead represent flows that might occur and would
cause the City to initiate planning for future plant expansion.
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 6 of 14
Texas Registered Engineering Finn No. F•754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
TABLE 4: DESIGN FLOW AT 2030 AND BUILD-OUT CONDITIONS
Design Flow Design
Flow at
Sewer Shed Annual Existing 1 2030
•
Carters Creek 2.6% 38,119 63,049 83,060 10.2 13.4
Lick Creek 6.5% 7,173 25,221 34,885 3.9 6.4
Historical flow data for Carters Creek WWTP and Lick Creek WWTP are presented alongside the
annual projected flows in Figures 3 and 4, respectively.
ESTIMATED DATES TO INITIATE PLANNING OF PLANT EXPANSION
Action dates are based upon TCEQ rules that Average Monthly Rainfall
require planning for new treatment capacity to 600
begin when monthly average inflows for a
wastewater plant exceed 75 percent of the 500
plant's permitted capacity for three consecutive
months (30 TAC §305.126). a.00 T.
The design flow projections (161 gpd/LUE for t.nn
Carters Creek and 154 gpd/LUE for Lick Dnn
Creek) are based on analysis of historical Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
three-month plant inflow data for the period of Month
July 2007 through July 2010. This analysis
■NVJS200(1-2009 Mean NCDC1971-2000Mean
estimates average flows for consecutive three-
month periods, with the standard deviation added to account for the higher flows experienced
historically, and ensures that planning projections are conservatively based. Actual monthly plant
inflows are expected to be lower than these design inflows, but this analysis methodology is
intended to account for brief (3-month) periods of abnormally high flows that might trigger the TCEQ
mandated planning.
Based on the design flow projections, the beginning of the TCEQ mandated planning for expansion
of Carters Creek WWTP is estimated to occur in June 2016, as shown in Figure 3. Actual flow
records through July 2010 indicate the trigger flow rate of 7.125 MGD for three consecutive months
has not yet been achieved. However, the plant is currently at 63% of permitted capacity based on
the average annual flow (AAF) for 2009, and had 23 occurrences in 2009 when the daily average
flow exceeded 75% of permitted capacity. From January 1, 2010 to July 31, 2010 (the end of the
available data set used in this analysis), the daily average flow (24-hour period) has exceeded 75%
of the permitted capacity ten times.
If College Station experiences a wet season, Carters Creek WWTP will readily approach 75% of
permitted capacity. As an example, the average monthly flow for October 2009 was 6.75 MGD, or
71 % of permitted capacity. The monthly rainfall total was 8.25 inches. The normal monthly rainfall
total for October is 4.22 inches.
For Lick Creek WWTP, the beginning of planning for expansion is estimated to occur in November
2015, as shown in Figure 4. Inflows are expected to equal plant capacity in 2020. The plant is
currently at 40% of permitted capacity, based on the 2009 AAF.
HDR Engineering, Inc. 117111 Preston Road, Ste 200 I Phone (972) 960-4400 Page 7 of 14
Texas Registered Engineering Firm No. F-754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
Jan-31
3 Jan-30
o
LL
Jan-29
a
J an -29
o
W
s
Jan-27
Q o
Jan-26
O O
Jan-25
I Jan-24
O Jan-23
4-
CO
Jan-22
L
Jan-21
3
O
0 Jan-20
Jan-19
7
C
C Jan-18
Q
Jan-17
ch N
Jan-16
7
LL CO ' G Jan 15
V R y Jan 14
~ G O
d p 3 Jan-13
1L o
3 = LL Jan-12
LL N
(L W m Jan-11
'G ro Jan-10
W N
Jar4g
N
V C JarAB
Z' Jan-07
<C CL Jan-06
U R
G Jan-05
o Jan-04
a
rr p Jan-03
O
Jan-02
~ N
r
~ Jan-01
p Jan-00
8 O O S Un O N O
O O> 0) a0 a0 h r-~ (o c0 LO 0 v
r
(QOw) Mold
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 8 of 14
Texas Registered Engineering Firm No. F•754 Dallas, Texas 75248 www.hdrinc com
EXHIBIT B
Jan-31
3
° Jan-30
F
am Jan-29
u
a Jan-28
a o Jan-27
LL
u
o a
` Jan-28
b M
_ JarO5
I Jan-24
Jen-23
Jan-22
N
Jan-21
cv
Jan-20
v
3
O Jan-19
Jan-18
7E
ra
C 3o Jan-17
C
3LL
Q LL a G Jan-16
0
~ >avz
tG Cm^ Jan 15
boo
C W N IL Jar04
y C ? Jan-13
3
M (D W
LL •0 Jan-12
a
3 Jan-11
O
Jan-10
1L
a
Jan-09
3 to Jar~138
N a u JarA7
d a a
U u Jan-06
V d Jan-05
J ~ I F
CL Jan-04
O
V, a Jan-03
~ O
o Jao-02
!V to
Jan-01
Jan-00
p ~ p 10r1 O u07 O
ch fV N O O
Wow) Mold
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 9 of 14
Texas Registered Engineering Firm No. F-754 Dallas, Texas 75248 WWWLhdrinc.com
EXHIBIT B
There has been one occurrence where 75% of permitted capacity has been reached. This occurred
on June 9, 2010. Inflows to Carters Creek WWTP also exceeded 75% of the plant's capacity on
this date. College Station received 4.3 inches of rain within 24 hours, approximately the monthly
average rainfall. However, the monthly average of flow for either plant did not exceed 75%
permitted capacity.
SUMMARY AND RECOMMENDATIONS
The LUE values used in the wastewater demand analysis were provided by the City's Planning
Services Department in accordance with the 2009 Comprehensive Plan. This newly adopted plan
allows for a much broader range of potential land use at a wider range of LUE/A values. While the
Planning Services Department did consider redevelopment of parcels in the existing sewered
system, actual development may differ from the assumptions used to prepare this report.
Therefore, it is recommended that the City continue to monitor development and for any significant
changes, update this analysis accordingly. Any updates made to this document will also require an
update to the Wastewater Facilities Planning Evaluation, the input data to the InfoSewer model, and
update to the Capacity Analysis. Additional examples of where assumptions might reasonably be
modified to match future experience include but are not limited to: a change to the existing CCN,
providing service to Carter's Lake or Williams Creek subdivisions, taking the flow produced in the
LC1 sub-basin and conveying it to Lick Creek WWTP in lieu of Carters Creek WWTP, changes to
the land use plan or LUE values, receiving the flow from Valley Park Lift Station to Carters Creek
WWTP, or receiving any flow from Texas A&M property
Historical flow rates and historical LUEs were used to calculate the design unit wastewater flow
rates of 161 gpd/LUE for Carters Creek and 154 gpd/LUE for Lick Creek. Future LUEs predicted by
the City's Planning Services Department were used to calculate the annual growth rate. The flows
were then projected annually.
Carters Creek WWTP is currently at 63% permitted capacity, based on the 2009 AAF. The
projected flow analysis anticipates that planning for capacity expansion of Carters Creek WWTP
should begin in 2016. However, during periods of above average rainfall, daily plant inflows
frequently exceed 75% of the plant's permitted capacity. If the City receives three consecutive
months of above average rainfall, the plant could easily receive flows triggering the TCEQ planning
period. HDR recommends the City continue to monitor the monthly average plant flows,
anticipating that planning for capacity expansion may need to begin sooner depending upon
weather patterns and growth rates or redevelopment experienced.
Lick Creek WWTP is currently at 40% of permitted capacity, based on the 2009 AAF. The
projected flow analysis for Lick Creek WWTP anticipates that planning for capacity expansion
should begin in 2015, depending upon weather patterns and growth rates experienced.
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 10 of 14
Texas Registered Engineering Finn No. F•754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
Appendix A
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 11 of 14
Texas Registered Engineering Firm No. F-754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
The following land use densities were provided by the City's Planning Services Department and
used by the City to develop projected LUEs in each watershed based on analysis of projected
growth trends.
TABLE A-1: LAND USE DESIGNATION DU VALUES
2009 LAND 12009 LAND USE DESCRIPTION DUIA
USE CODE I
100 Rural 1.00
109 Restricted Suburban 5.45
110 General Suburban 8.00
111 Neighborhood Conservation 4.50
120 Urban 20.00
130 Estate 2.00
200 Suburban Commercial 4.55
210 General Commercial 5.50
250 Urban 20.00
275 Urban Mixed Use 35.00
310 Business Park 2.00
410 Institutional/Public 2.50
450 Texas A&M University 0.00
456 Redevelopment Areas 0.00
710 Natural Areas - Protected 0.00
720 Natural Areas - Protected 0.00
750 Acreage in Floodplain & Streams, Retail Regional, WPC Overlay 0.00
800 Natural Areas - Reserved 0.20
850 Utilities 0.00
900 Acreage in Floodplain & Streams, Redevelopment, Residential Attached, Single 0.00
Family Residential
910 Rural 1.00
999 Water 0.00
HDR Engineering, Inc. 17111 Preston Road, Ste 200 Phone (972) 960-4400 Page 12 of 14
Texas Registered Engineering Firm No. F•754 Dallas, Texas 75248 www.hdrinc.com
EXHIBIT B
The City Planning Services Department has identified planning districts within the City limits that are
a mixture of land use designations with varying development densities. The City Planning Services
Department has provided exceptions for the DU/A values listed in Table A-1 within these planning
districts. The planning districts are shown on Figure A-1. The DU/A exceptions are listed in Table
A-2.
TABLE A-2: DU/A EXCEPTIONS FOR PLANNING DISTRICTS
Land Use
Planning District Acres Affected Designation
Suburban 155 • 90% Suburban Commercial 4.55
• 10% General Suburban 8.00
Growth Area I • 5% Suburban Commercial 4.55
Restricted Suburban 900 • 15% Natural Area - Preserved 0.20
• 80% Estate 2.00
• 45% Natural Area - Preserved 0.20
Estate • 55% Estate 2.00
Growth Area II
Urban 160 • 95% General Commercial 5.5
• 5% High Density Residential 13.0
Estate 35 • 100% Estate 2.0
Growth Area III General Suburban 255 • 15% General Commercial 4.55
• 85% General Suburban 8.00
Estate 45 • 50% Natural Area-Preserved • 0.20
• 50% Estate 2.00
Growth Area IV General Suburban 10 • 100% General Suburban 8.00
Restricted Suburban 425 • 15% Natural Area - Preserved 0.20
• 5% Suburban Commercial • 4.55
Growth Area V Urban 145 • 15% General Suburban • 8.00
. 85% Urban • 20.00
Growth Area VI Urban 150 • 100% Urban • 20.00
Growth Area VII Urban 40 • 100% Urban • 20.00
Urban 30 • 100% Urban • 35.00
Redevelopment Area I e
Urban Mixed Use 65 100% Urban Mixed Use 45.00
• 20% General Suburban • 8.00
Urban 155 • 45% Urban • 15.00
Redevelopment Area II • 35% Urban • 20.00
Urban Mixed Use 50 • 100% Urban • 35.00
Redevelopment Area Urban 40 • 100% Urban 15.00
III
HDR Engineering, Inc. 17111 Preston Road, Ste 200 I Phone (972) 960A400 Page 13 of 14
Texas Registered Engineering Firm No. F•754 Dallas, Texas 75248 www.hdrinc.com
d)
a)
o ~
ca C14
(0 C O N'
m V Q _ 2
to Y c n c n
C: 0
ca. C14
a) u L a C ^ }
71
C J N m a~i J
iz 0 -8 -6
D Q
m n
C7 Zza H (
i
x
pp
M r
7J ,
` _ ~ a rte`.>>~~..
M
U x U - U,0
U
x J H " = FM-2154
x U U) v,
f '
t0
F,1 ~ d
~J 7
L
m n
EXHIBIT B
CITY OF COLLEGE STATION
i _
7 7
w
j T
,.w ✓ r z -
F, 7TV
tMl e
` ..w.. r . { -47- J~L : T AY ~ ~ Yom.
_ e"•l. siTr~'~"~;~~`~ wy+ss~~~.~ev ~ a_ .mod /l'
* - ~-`lrwRRy
N " ' r
i
1
. 4YJE y 5 rig +Y»'°
x
t , , y
v
Y
x{
Al
01.
1 di
~'a '~~`,`i ~-~~"`.S~i,z 'Mfs
z~
°'~~t r ~''b A x:! a • F '~y., f ~ ,c `ds~ r o , } ,~•}fs r .t~
~ r a { /"i, ~ ¢ t *`^~x' ~a`4`"7dr~t ~ 3 ~f t~~ f. ~ I zti'tfit,~r It ~ '~''v
~ Z a . , ~ k.. ~ ~ f . a., ~ $j ~ FY4 1payT~ i ~ Y# '8`~•e E + ~ , K'~ f °~~~,J ~ ~ v :,'~i
x L
_
4 .~Gt ...'~,F°~w~_ ; T '2 f 3 Y3 Siff
J t;T' - . •~r- .~,'xY~;~" <rti '3 ,e^ 1t a~,a$ c.`' r• .5'
Ai.
ltt~ 4~ T^ I
? ~ r n '•sr r .,~r .~T.
City 1 ~ru✓
I College Station
Wastewater Planning Evaluation
H/• Engineering, P.E. Firm Registration No. F-754
May 2011
EXHIBIT B
May 13, 2011
Mr. Stephen Maldonado, Jr.
City of College Station
Water Services Department
PO Box 9960 '
College Station, TX 77842
Re: Final Wastewater Facilities Planning Evaluation
HDR Project No. 123715
Dear Stephen:
We are pleased to provide you with the final version of the Wastewater Facilities Planning Evaluation for the
Task 3.0: Wastewater Master Planning Project. We sincerely appreciate the participation and assistance that we
received from you and your staff during development of this TM.
This TM documents the evaluation of your existing facilities against Chapter 217 rules, evaluates several
sludge processing alternatives, and evaluates nutrient removal using a biological process.
Should you or your staff have questions regarding this report, please do not hesitate to contact us.
Sincerely,
HDR ENGINEERING, INC.
Sharon M. Miller, P.E.
Project Manager
O F TF.~-~1t',
j SHARON M. MILLER
• = 102799
• ~r
l~l,yo~(~C x\ -
EN. N-
l~ FS
Sh
5f~3(t!
HDR Engineering, Inc. 17111 Preston Road Phone* 1972)96D-4400
Suite 200 Fax: (972) 9604471
Dallas, TX 751401232 www hdrinc.com
EXHIBIT B
Table of Contents
1.0 OBJECTIVE ................................................................................................................................................................1
2.0 EXISTING TREATMENT PLANT DESCRIPTION ......................................................................................................1
2.1 Carters Creek WWTP ...................................................................................................................................1
2.1.1 Headworks .........................................................................................................................................3
2.1.2 Activated Sludge Process ..................................................................................................................3
2.1.3 UV Disinfection and Discharge ..........................................................................................................3
2.1.4 Sludge Treatment ..............................................................................................................................4
2.2 Lick Creek WWTP ...................................................................................................................................4
2.2.1 Headworks .........................................................................................................................................6
2.2.2 Activated Sludge Process ..................................................................................................................6
2.2.3 UV Disinfection and Discharge ..........................................................................................................6
2.2.4 Sludge Treatment ..............................................................................................................................6
3.0 EXISTING PROCESS EVALUATION .........................................................................................................................7
3.1 Comparison of Carters Creek WWTP Processes to TCEQ Design Criteria .....................................................7
3.1.1 CCWWTP Headworks ........................................................................................................................7
3.1.2 CCWWTP Aeration Basins ................................................................................................................8
3.1.3 CCWWTP Secondary Clarifiers .........................................................................................................9
3.1.4 CCWWTP UV ..................................................................................................................................11
3.2 Comparison of Lick Creek WWTP Processes to TCEQ Design Criteria ........................................................11
3.2.1 LCWWTP Headworks ......................................................................................................................11
3.2.2 LCWWTP Aeration Basins ...............................................................................................................11
3.2.3 LCWWTP Clarifiers ..........................................................................................................................12
3.2.4 LCWWTP UV ...................................................................................................................................12
3.3 Existing Sludge Processing and Disposal ......................................................................................................12
3.3.1 Digestion ..........................................................................................................................................12
3.3.2 Thickening ........................................................................................................................................13
3.3.3 Dewatering .......................................................................................................................................14
3.4 Existing Process Summary and Recommendations ......................................................................................15
4.0 PROJECTED FLOWS ..............................................................................................................................................17
5.0 SLUDGE PROCESSING AND DISPOSAL ALTERNATIVES ...................................................................................18
5.1 Alternatives For Producing Class A Biosolids ................................................................................................19
5.1.1 Aerobic Digestion .............................................................................................................................19
5.1.2 Anaerobic Digestion .........................................................................................................................22
5.1.3 Composting ......................................................................................................................................25
5.1.4 Incineration ......................................................................................................................................29
5.2 Cogeneration and Grease Digestion ..............................................................................................................34
hDR Pagei
C11voFCnutreSrnnon
EXHIBIT B
5.3 Centralized Solids Handling Facility ...............................................................................................................40
5.4 Sludge Processing Alternatives Cost Analysis ...............................................................................................41
5.4.1 ATAD ...............................................................................................................................................41
5.4.2 Thermophilic Anaerobic Digestion ...................................................................................................42
5.4.3 Composting ......................................................................................................................................44
5.4.4 Incineration ......................................................................................................................................45
5.5 Summary of Economic and Non-Economic Considerations ...........................................................................46
6.0 NUTRIENT REMOVAL .............................................................................................................................................48
6.1 Nutrient Removal Technologies .....................................................................................................................48
6.2 Facility Requirements 51
6.2.1 Carters Creek WWTP - Nitrogen Removal .......................................................................................51
6.2.2 Carters Creek WWTP - Phosphorus Removal .................................................................................52
6.2.3 Lick Creek WWTP - Nitrogen Removal ............................................................................................52
6.2.4 Lick Creek WWTP - Phosphorus Removal ......................................................................................52
6.3 Recommended Monitoring Parameters .........................................................................................................52
6.4 Nutrient Removal Cost Analysis .....................................................................................................................54
7.0 CONCLUSIONS AND RECOMMENDATIONS .........................................................................................................55
7.1 Need for Capacity Expansion by 2018 ...........................................................................................................55
7.2 Need for Improvements for TCEQ Chapter 217 Compliance .........................................................................55
7.3 Need for Expansion Due to Organic Loading .................................................................................................56
7.4 Potential Improvements to Implement Future Nutrient Removal ....................................................................56
7.5 Recommended Solids Handling Strategies for Future Consideration ............................................................57
7.6 Summary of Estimated Costs for Recommended Improvements ...................................................................58
List of Figures
Figure 1: Carters Creek WWTP Process Schematic ..........................................................................................................2
Figure 2: Lick Creek WWTP Process Schematic ...............................................................................................................5
Figure 3: Carters Creek WWTP Monthly Average BOD Loading ........................................................................................8
Figure 4: Lick Creek WWTP BOD Loading ........................................................................................................................11
Figure 5: Carters Creek WWTP Average TSS Load .........................................................................................................16
Figure 6: Carters Creek WWTP Proposed ATAD Expansion ............................................................................................17
Figure 7: ATAD Mechanical Equipment .............................................................................................................................19
Figure 8: ATAD Process Schematic ..................................................................................................................................19
Figure 9: Anaerobic Digestion Biological Process Schematic ...........................................................................................23
Figure 10: Temperature Phased Anaerobic Digestion Process Schematic .......................................................................24
Figure 11: Acid-Gas Phased Digestion Process Schematic ..............................................................................................24
Figure 12: Composting Process Schematic .......................................................................................................................26
Figure 13: Thermylis High Temperature Fluid Bed Process Schematic ............................................................................29
Figure 14: Incineration Process Schematic .......................................................................................................................30
Figure 15: Cogeneration Process Schematic ....................................................................................................................35
Figure 16: Brown Grease Digestion Example ....................................................................................................................36
Figure 17: Grease Receiving Station Example ..................................................................................................................36
® Page ii
jT J> ~~7 G7 of (:outre SrAnon
EXHIBIT B
Figure 18: Thermophilic Anaerobic Digestion with Grease Process Schematic ................................................................38
Figure 19: Centralized Sludge Processing Facility Location ..............................................................................................40
Figure 20: Conventional Municipal Nutrient Removal (Level 1) .........................................................................................48
Figure 21: Enhanced Nutrient Removal Process (Level 2) ................................................................................................49
Figure 22: Enhanced Nutrient Removal Process with Submerged Membranes (Level 2) .................................................50
List of Tables
Table 1: CCWWTP Activated Sludge Treatment Facilities .................................................................................................3
Table 2: CCWWTP Rotary Drum Thickeners .....................................................................................................................4
Table 3: CCWWTP ATAD Facility
Table 4: LCWWTP Activated Sludge Treatment Facilities .................................................................................................6
Table 5: CCWWTP Headworks Facilities ...........................................................................................................................7
Table 6: Chapter 217 Design Organic Loading Rates for Sizing Aeration Basins ..............................................................9
Table 7: Chapter 217 Maximum Clarifier Overflow Rates at 2-hour Peak Flow .................................................................9
Table 8: CCWWTP Clarifier Overflow Rates and Detention Times at Peak Flow ............................................................10
Table 9: CCWWTP Clarifier Overflow Rates and Detention Times at Peak Flow in Series .............................................10
Table 10: LCWWTP Clarifier Design Criteria ....................................................................................................................12
Table 11: CCWWTP Gravity Thickener Criteria ...............................................................................................................13
Table 12: Process Evaluation Summary ...........................................................................................................................15
Table 13: Planning Initiation and Projected 2018 Flow .....................................................................................................18
Table 14: Improvements Required for an ATAD Facility ..................................................................................................21
Table 15: 40 CFR Part 503 Time and Temperature Requirements for Composting .........................................................25
Table 16: Improvements Required for a Composting Facility ...........................................................................................26
Table 17: Improvements Required for an Incineration Facility ..........................................................................................31
Table 18: 40 CFR Part 60 Emission Limits for New SSI Units ..........................................................................................33
Table 19: CHP System Economics at 11.5 MGD .............................................................................................................37
Table 20: Improvements Required for a Centralized Anaerobic Digestion Facility ...........................................................38
Table 21: Improvements Required for a Centralized Facility ............................................................................................41
Table 22: ATAD Cost Estimate .........................................................................................................................................42
Table 23: Thermophilic Anaerobic Digestion Cost Estimate .............................................................................................43
Table 24: Composting Cost Estimate ...............................................................................................................................44
Table 25: Incineration Cost Estimate ................................................................................................................................45
Table 26: Advantages and Disadvantages of Various Sludge Handling Alternatives .......................................................47
Table 27: Nutrient Removal Treatment Levels .................................................................................................................48
Table 28: Recommended Monitoring Parameters ............................................................................................................53
Table 29: Level 1 Nutrient Removal Cost Estimate ..........................................................................................................54
Table 30: Summary of Estimated Capital Costs ...............................................................................................................59
List of Appendices
Appendix A: CCWWTP Process Evaluation Data
Appendix B: LCWWTP Process Evaluation Data
I-aq I / Page iii
((7 Cf'IY'OF COLLFl:E SPATI(1N
dm aerr.jdr R.~+.rh LAtf
EXHIBIT B
1.0 OBJECTIVE
The City of College Station (City) owns, operates and maintains a wastewater collection, treatment
and disposal system that provides sewerage service to approximately 78,000 residents and
associated commercial businesses. Treatment and disposal is provided by Carters Creek
Wastewater Treatment Plant (CCWWTP) and Lick Creek Wastewater Treatment Plant
(LCWWTP). These plants are currently permitted to treat an average annual influent dry weather
flow of approximately 11.5 million gallons per day (mgd); 9.5 mgd at Carters Creek and 2.0 mgd at
Lick Creek. The combined peak flow capacity is 36 mgd (30 mgd at CCWWTP and 6 mgd at
LCWWTP).
The purpose of this report is to present a macro-level wastewater facilities planning study and
provide an overview of sludge treatment and disposal alternatives for future consideration.
The three primary tasks within the scope of the wastewater facilities planning study are:
■ Determine each treatment plant's rated capacity based on current TCEQ criteria;
■ Identify improvements needed at each treatment plant to treat flow through 2018;
■ Evaluate expansion of existing solids processing facilities necessary for 2018 flows.
This study is an overview of treatment process units and does not include analysis of ancillary
assets such as pumps and piping.
2.0 EXISTING TREATMENT PLANT DESCRIPTION
The following sub-sections provide a brief overview of existing facilities at CCWWTP and
LCWWTP, respectively.
2.1 CARTERS CREEK WWTP
A brief description of the unit processes follow. Figure 1 shows an overall process schematic of
the CCWWTP.
® Page 1
Z ~ 7 Cm orCoiuc;iA-fdn
I D
EXHIBIT B
i'yT
Figure 1: Carters Creek WWTP Process Schematic
i
INFLUENT HEADWORKS LANDFILL - UV EFFLUENT
(Inorganics)
i
AERATION SECOND. FINAL
BASIN CLARIFIER CLARIFIER
RAS WAS
THICKENER
i(Rotary Drum)
AERATION SECOND. FINAL
BASIN CLARIFIER CLARIFIER
SPUTTER
Box
RAS - WAS
ATAD
G
I
AERATION SECOND. FINAL
BASIN CLARIFIER CLARIFIER
DEWATERING
RAS - WAS (Centrifuge)
i
I
AERATION SECOND. FINAL
BASIN CLARIFIER CLARIFIER LANDFILLor
LAN D
APPLICATION
RAS WAS
TT''~~,, ~ Page 2
Cm-oF Cou1[:F Sratton
J DJ
EXHIBIT B
2.1.1 Headworks
The headworks at CCWWTP consist of influent pumping, screening and screenings compaction,
grit removal and classification, and scum and grease removal. The influent flow is delivered with
four 6-mgd Archimedes screw pumps. Flow that exceeds capacity of the screw pumps is handled
by three 4-mgd submersible pumps. The firm pumping capacity (assuming the largest unit out of
service) is 30 mgd. There are two climber-type bar screens, rated at 15 mgd each, located after
the influent pumping. Both units are required to be in service to provide the 30-mgd peak flow
capacity. Two aerated grit chambers, with total chamber volume of approximately 50,000 gallons,
follow the screening.
2.1.2 Activated Sludge Process
The screened and degritted wastewater flows into four parallel activated sludge treatment trains.
Each train consists of an aeration basin, a secondary clarifier and a final clarifier. The trains are
named Train No. 2, No. 3, No. 4, and No. 5. The sizes of each basin, secondary clarifier, and final
clarifier are shown in Table 1.
Table 1: CCWWTP Activated Sludge Treatment Facilities
Secondary Rated Aeration Train No. Capacity Basin Clarifier Sidewater Clarifier Sidewater
(mgd) Volume Diameter Depth Diameter Depth
2.0 0.81 65 12.5 85 12.0
2.5 0.82 80 12.5 85 12.0
2.5 0.76 85 12.5 100 12.0
2.5 0.76 85 12.5 100 12.0
9.5 3.15
2.1.3 UV Disinfection and Discharge
Secondary effluent is disinfected by an ultraviolet (UV) process prior
to discharge. The UV disinfection facility has two channels; five r y~`
banks of modules per channel; and three modules per bank, for a P
total of 30 modules. Disinfected effluent flows to a common well that
overflows into four effluent channels and into dual 60-inch outfall.
pipes. The outfall pipes convey the effluent into Carters Creek.
Page 3
C7n of Cou ec:e Srnnnn
Jw lcrn efrAr lf,unl. Li/!n
EXHIBIT B
2.1.4 Sludge Treatment
The Return Activated Sludge (RAS) is pumped from the secondary clarifiers to the aeration basins
using airlift pumps to maintain the biological solids in the activated sludge process.
Waste Activated Sludge (WAS) is drawn off of each RAS line and pumped to the sludge thickening
building. Wasting is necessary to maintain the desired solids retention time (SRT). A 35-foot
diameter gravity thickener with a sidewater depth of 15.75 feet is used to thicken the sludge before
being sent to the rotary drum thickeners. From there, it is pumped to the Autothermal -
Thermophilic Aerobic Digestion (ATAD) facility. The purpose of the ATAD process is to disinfect
and stabilize activated sludge wasted from the treatment facility. Characteristics of the rotary drum
thickeners and ATAD processes are summarized in Tables 2 and 3.
Table 2: CCWWTP Rotary Drum Thickeners
Number of Units 1 2
Diameter 34 inches
Sludge Rate 250 to 1,000 Ibslhour
Hydraulic Capacity 50 to 100 gpm
Table 3: CCWWTP ATAD Facility
Number of Reactor Vessels 3
7,800 Ibsld
Capacity
Detention 6 days
The ATAD discharge pumps transfer digested sludge from the ATAD reactor to the digested
sludge holding tank where sludge awaits dewatering at the centrifuge. Once dewatered, the
biosolids are land applied to crop lands. When solids are in excess of the ATAD capacity, the
thickened, raw solids are sent only to dewatering and hauled to the landfill for disposal. The
centrifuge is designed for a maximum hydraulic capacity of 150 gpm with a solids capture rate of
98%.
2.2 LICK CREEK WWTP
A brief description of the unit processes follow. Figure 2 shows an overall process schematic of
the LCWWTP.
IDR Page 4
Cou.et:e SreIuir
EXHIBIT B
Figure 2: Lick Creek WWTP Process Schematic
INFLUENT EHEADWORKS LANDFILL UV EFFLUENT
(Inorganics)
AERATION FINAL
BASIN CLARIFIER
SPLITTER
BOX RAS WAS
I
I
AERATION AERATED
BASIN FINAL WAS
CLARIFIER HOLDING
TANK
RAS WAS
I
----->r AERATION
r ~ BASIN FINAL ` DEWATERING
_ _ F I (Centrifuge) CLARIFIER SPUTTER L (FUTURE) (FUTURE)
r
BOX ~ -
L (UTURE) RAS
WAS
_ _ ♦ LANDFILLor
` r AERATIO_N CCWWTP
FINAL _ `
>1 L (FUTURE) CLARIFIER C
- - - (FUTURE) ~
RAS WAS
JDJ Page 5
lilti ( F CM LWE STATION
4, P-." VdL,
1- 4
EXHIBIT B
2.2.1 Headworks
The headworks at LCWWTP consist of influent pumping, screening and screenings compaction,
grit removal, and scum and grease removal. Three 3-mgd submersible pumps are used to pump
to one "step-type" mechanical screen to remove coarse material. A manual bar screen is
provided as a standby. The flow travels through a vortex grit chamber and then is split to the two
activated sludge trains.
2.2.2 Activated Sludge Process T
Two aeration basins were constructed as part of the activated sludge
process. The volume of each basin is 470,000 gallons, for a total
volume of approximately 0.94 MG.
Each basin is divided into three tapered aeration zones by baffle walls. The baffle walls have both
a submerged opening for the passage of mixed liquor from one zone to the next as well as an
opening at the water surface elevation to allow foam and scum to move through to the tank
effluent. Each aeration basin is connected to an existing splitter box that can diver flow to either
secondary clarifier. The characteristics of the aeration basins and secondary clarifiers are shown
in Table 4.
Table 4: LCWWTP Activated Sludge Treatment Facilities
Depth j Train Aeration Basin Secondary Clarilfier Clarifier Sidewater
No.1 Volume (MG) Diameter (ft) 0.47 60 12.0
0.47 60 12.0
2.2.3 UV Disinfection and Discharge
The UV lamps at the LCWWTP are arranged in six vertical modules: each module containing 40
lamps. Each module is designed to disinfect 1 mgd of secondary effluent. Plant service-water
pumps are located at the UV facility to utilize disinfected, non-potable water for use at the plant.
Disinfected effluent is discharged to Lick Creek.
2.2.4 Sludge Treatment
Three RAS pumps, rated at 700 gpm each, are used to return sludge from the secondary clarifiers
to the aeration basins. WAS is drawn off the suction side of the RAS pumps and conveyed by
gravity to the WAS Pump Station. The WAS Pump Station discharges to the Aerated Sludge
Holding Tank. The Aerated Sludge Holding Tank has an inner and outer ring storage area,
Page 6
I-ELI CcxLeciSrAl n
~Rr F hees y r dwM A-), t.lky
EXHIBIT B
separated by an intermediate ringwall. The WAS is currently stored in the inner ring portion of the
tank, which provides approximately 127,000 gallons. With an estimated 46,000 gallons of WAS
each day at the plant permitted capacity of 6.0 mgd, the tank provides about 3 days of storage.
Progressing cavity pumps are used to pump WAS from the Aerated
Sludge Holding Tank to a single Westphalia centrifuge. The centrifuge 1
installed at the LCWWTP is capable of both thickening and dewatering `k__
sludge. This centrifuge is designed for a maximum hydraulic capacity
of 250 gpm with a solids capture rate of 95%. Under normal
operations, the undigested sludge is dewatered and hauled to the landfill for disposal.
3.0 EXISTING PROCESS EVALUATION
TCEQ Chapter 217 lists various rules and design requirements to which wastewater treatment
facilities must adhere. This subchapter applies to the treatment design for a new facility, material
alteration or expansion of an existing facility, and the re-rating of an existing facility. This
subchapter became effective August 28, 2008. The following discussion compares the existing
facilities at CCWWTP and LCWWTP to the TCEQ Chapter 217 design criteria.
3.1 COMPARISON OF CARTERS CREEK WWTP PROCESSES TO TCEQ DESIGN CRITERIA
3.1.1 CCVYWTP Headworks
Pertinent excerpts from TCEQ Chapter 217 rules regarding design criteria for headworks facilities
are presented in Table 5.
Table 5: CCWWTP Headworks Facilities
Reference Chapter 217
Chapter 217 Criteria Section Actual Condition
Met?
A coarse screening device must There is no bypass channel in
include a bypass channel sized to §217.121(b) the headworks when both of the No
handle the peak flow of the facility. bar screens are needed to meet
the peak flow capacity.
Aerated grit chamber must have a
hydraulic detention time of at least 3.0 §217.125(b)(3) DT = 5.2 minutes Yes
minutes.
The CCWWTP headworks facility meets all other TCEQ requirements.
Page 7
of COUX1W STATION
hr 4 .j,4
EXHIBIT B
3.1.2 CCWWTP Aeration Basins
Per TCEQ Chapter 217 rules, when an owner seeks to have an existing facility re-rated or to
expand or upgrade an existing facility, the design organic loading must be calculated based on the
average daily organic load that the facility is required to treat during the design life. A calculation of
the average daily organic loading must use the facility's actual data plus one standard deviation.
The monthly average influent BOD samples for years 2007 to 2009 are shown in Figure 3. Due to
a shift in flow from CCWWTP to LCWWTP in 2007, data before this shift is not considered.
18,000
16,000
J
E 14,000
0
O
m
v 12,000
C
10,000
Q
8,000
6,000
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 00 00 00 00 00 00 ao 00 00 00 00 0o rnrn rnrn rnrn rn rnrn rn rn
00000000000000000000000000000000099
C-6 - T(L LQU > U C L TC 00a+-' > U C~ L TC CDQ+-' >
t6 O) O- f0 7 7 a) U 0 ra O) m fl- f0 7 0J U O v (O 4J c0 Q nz C C OJ U O
LL Q Q ,0z0-2< 2 Q N 0 Z LL Q Q Ln O Z
Date
Figure 3: Carters Creek WWTP Monthly Average BOD Loading
Based on daily BOD samples from January 1, 2007 to December 31, 2009, the average BOD
loading for CCWWTP is 9,809 Ibs/d. One standard deviation is 1,805 Ibs/d, resulting in a design
organic loading value of 11,614 Ibs/d. The total volume of the aeration basins is 420,000 ft3.
Therefore, the organic loading rate of the existing system is 28 Ibs BOD/d/1000 ft3. Historical
Page 8
I I ~~1 ~Cou.rc:eSrenor.
R
II ✓.tw..9d A-.nvuy
D
EXHIBIT B
plant data since 2008 indicates that the reactor temperature ranges from 20°C to 25°C throughout
the winter months. The TCEQ Chapter 217 requirements are listed in Table 6.
Table 6: Chapter 217 Design Organic Loading Rates for Sizing Aeration Basins
Maximum Organic
Rate (lbs :•D/d/1000 W) 1 Requirements Met?
Conventional activated sludge process with nitrification 35 Yes
when reactor temperatures exceed 15°C (59°F)
3.1.3 CCWWTP Secondary Clarifiers
The maximum surface loading rates and the minimum detention times used to determine the size
of an activated sludge clarifier using traditional design methods are outlined in TCEQ Chapter 217
and shown in Table 7.
Table 7: Chapter 217 Maximum Clarifier Overflow Rates at 2-hour Peak Flow
Aeration Basin Organic Loading Maximum Overflow Minimum Detention Time
20,25,35,45 1,200 1.8
Secondary treatment at CCWWTP is designed for a total peak flow rate of 30 MGD, divided
amongst each train as follows:
■ Train 2: 6.0 MGD
■ Train 3: 6.0 MGD
■ Train 4: 9.0 MGD
■ Train 5: 9.0 MGD
Using the clarifier dimensions and the peak flow rates for each train, the overflow rate and
detention time were calculated for each clarifier, and listed in Table 8.
Page 9
(,IP' OF COLLFL:L $ I'A 1'1(lt~
FDR
EXHIBIT B
Table 8: CCWWTP Clarifier Overflow Rates and Detention Times at Peak Flow
Clarifier Clarifier Meet • Detention Meet TCEQ
Clarifier Number Diameter Overflow Requirements? Time Requirements?
(ft) Rate 11
g..
Secondary Clarifier 2A 65 1,809 No 1.2 No
Final Clarifier 26 85 1,058 Yes 2.0 Yes
Secondary Clarifier 3A 80 1,194 Yes 1.9 Yes
Final Clarifier 313 85 1,058 Yes 2.0 Yes
Secondary Clarifier 4A 85 1,587 No 1.4 No
Final Clarifier 46 100 1,147 Yes 1.9 Yes
Secondary Clarifier 5A 85 1,587 No 1.4 No
Final Clarifier 513 100 1,147 Yes 1.9 Yes
When analyzed individually, Clarifiers 213, 3A, 36, 46 and 56 meet both the overflow and detention
time requirement. Clarifiers 2A, 4A, and 5A meet neither. However, the City operates the
secondary and final clarifiers in series. When combining the volume of the two clarifiers, the
overflow and detention time requirements would be satisfied for each train, as shown in Table 9.
Table 9: CCWWTP Clarifier Overflow Rates and Detention Times at Peak Flow in Series
Clarifier Number Overflow Requirements? Detention Requirements?
Rate II
Combined volume of 2A and 2B ' 905 Yes 3.4 Yes
Combined volume of 3A and 3B 562 Yes 4.0 Yes
Combined Volume of 4A and 4B 670 Yes 3.4 Yes
Combined Volume of 5A and 56 670 Yes 3.4 Yes
Since the secondary and final clarifiers are operated in series, the TCEQ overflow rate and
detention time rules appear to be satisfied. However, series operation of clarifiers is unusual, and
as such, the configuration is not one envisioned by the TCEQ regulations. It may be necessary in
the future to request a variance from TCEQ to ensure compliance.
Page 10
~7 (l7Y OF (.(1LIFL:F $TAIION
EXHIBIT B
3.1.4 CCWWTP UV
The UV installation at CCVVVVfP meets all redundancy, dosage and system sizing requirements
as set by TCEQ Chapter 217 under Subchapter L.
3.2 COMPARISON OF LICK CREEK WWTP PROCESSES TO TCEQ DESIGN CRITERIA
3.2.1 LCWWTP Headworks
The headworks at LCVVVVTP conform to all TCEQ design requirements.
3.2.2 LCWWTP Aeration Basins
The monthly average influent BOD is shown in Figure 4 for January 2007 to December 2009. The
average BOD from these data is 1,747 Ibs/d with a standard deviation of 382 Ibs/d, for a total
computed BOD load of 2,129 Ibs/d. The aeration basin volume is 125,000 ft3, resulting in a BOD
load rate of 17 Ibs/d/1000 ft3.
3,000
2,500
0 2,000
m
c
a
3
c
1,500
m
>
1,000
500
OA 01 01 01 01 01 04i 04' O`b O`b O% (Z~ O~ O~ O~
>a~ fat ~aJ ,J~ h~Q°, ,ate ~a~ ~aJ ~J\ ~eQ°~ ~a~
Date
Figure 4: Lick Creek WWTP BOD Loading
® Page 11
f DR ~7 Cnr of C;oLUGe Srnnon
J.4w.e y'dK a anJ, Wky
EXHIBIT B
"
ate; .
The BOD loading rate is well within the TCEQ criteria of 35 Ibs/d/1000 ft3 at water temperatures
above 15°C, as previously shown in Table 5, indicating the aeration basin volume is adequate.
3.2.3 LCWWTP Clarifiers
The maximum surface loading rates and the minimum detention times used to determine the size
of an activated sludge clarifier using traditional design methods are outlined in TCEQ Chapter 217,
and shown previously in Table 6. In essence, the clarifiers must meet a maximum overflow rate of
1,200 gpd/ft2 and a minimum detention time of 1.8 hours.
The LCWWTP has a dedicated final clarifier for each aeration basin, providing for a peak flow rate
of 6 MGD (3 MGD each clarifier). Using the clarifier diameter and the peak flow rate, the overflow
rate and detention time were calculated for the final clarifier and compared to TCEQ Chapter 217
criteria as shown in Table 10.
Table 10: LCWWTP Clarifier Design Criteria
Clarifier Clarifier Meet • Detention Meet TCEQ
Clarifier • Diameter
I (ft) Overflow Rate Requirements. Time Requirements?
g.d 11
Final Clarifier 1 60 11062 Yes 2.1 Yes
Final Clarifier 2 60 1,062 Yes 2.1 Yes
The final clarifiers at LCWWTP do meet TCEQ design requirements.
3.2.4 LCWWTP UV
The UV installation at LCWWTP meets all redundancy, dosage and system sizing requirements as
set by TCEQ Chapter 217 under Subchapter L.
3.3 EXISTING SLUDGE PROCESSING AND DISPOSAL
3.3.1 Digestion
Sludge aerobic digestion is performed only at CCWWTP, using the ATAD system. Sludge is not
digested at LCWWTP, but can be transported to CCWWTP to feed into the ATAD if necessary.
As the ATAD operates above capacity at times with just solids produced at CCWWTP, the solids
from LCWWTP are typically not fed to the ATAD system.
Page 12
IER, COLLFUF STATION
#A' Fdr Vdl
Jr A-
EXHIBIT B
3.3.2 Thickening
Sludge thickening can be performed at both WWTPs. TCEQ Chapter 217 requires that a sludge
thickening system have a bypass, and a facility must have dual sludge thickening units, an
alternate means of thickening, or an alternate disposal method.
3.3.2.1 CCWWTP
CCWWTP has one gravity thickener and two rotary drum thickeners (RDT). The RDT is the
primary method of thickening sludge to an average of 4% solids for feeding the ATAD system.
The gravity thickener is used as a storage tank for feeding the RDT. It does not appear that the
facility has a bypass mechanism of the RDT system. There is a redundant unit, an alternate
means of thickening by use of the gravity thickener, and an alternate disposal method of only
dewatering sludge and hauling to the landfill for disposal.
Pertinent excerpts from TCEQ Chapter 217 rules regarding design criteria for mechanical gravity
thickeners are presented in Table 11. The gravity thickener volume is 113,300 gallons.
Table 11: CCWWTP Gravity Thickener Criteria
Chapte 217
Chapter 217 Criteria CCWWTP Requirements
Met?
Overflow rate between 400 gpd/ft2 and 800 gpolft2 143 gpd/ft2 No
Min Side Water Depth =10 ft 15.75 ft Yes
According to TCEQ criteria, the gravity thickener is oversized. If the City were to use the gravity
thickener for its true purpose, dilution water may need to be added to the system, which is
acceptable by Chapter 217.
3.3.2.2 LCWWTP
One centrifuge exists at LCWWTP, which can be used for thickening and dewatering. The
centrifuge cannot perform both functions simultaneously; however. By changing valves, the
sludge can bypass the centrifuge unit and discharge directly into a tanker truck. There is no
redundant unit; however, the sludge can be hauled to CCWWTP for thickening as an alternate
method, and the sludge can be hauled to the landfill for disposal.
♦ Page 13
C*7~ of Cou.ri:e Srenon
✓.4ony y rn. ~M,~, t:tn
LDR
EXHIBIT B
3.3.3 Dewatering
Sludge dewatering can be performed at both WWTPs. TCEQ Chapter 217 requires that a
mechanical dewatering system have at least two units, unless justification can be provided that
adequate storage or an alternative means of sludge handling exists.
3.3.3.1 CCWWTP
Dewatering is performed at CCWWTP with one centrifuge. The digested sludge from the sludge
holding tank is pumped to the centrifuge, and the dewatered cake is hauled off-site for beneficial
land application.
Even though the CCWWTP does not have a redundant centrifuge, justification can be made to
demonstrate the City has an alternative means of sludge dewatering. When the Carters Creek
centrifuge is out of service for maintenance or repair activity, digested liquid sludge is hauled to an
off-site disposal site.
There is no provision within the existing dewatering structure to add a second centrifuge at
CCWWTP. The structure would need to be expanded, a completely new building would need to
be constructed onsite, or the sludge dewatering abandoned at both WWTPs and pumped to a new
centralized facility.
3.3.3.2 LCWWTP
Dewatering is performed at LCWWTP with one centrifuge. The WAS from the Aerated Sludge
Holding Tank is pumped to the centrifuge for processing, and the dewatered cake is hauled to the
landfill for disposal.
Even though the LCWWTP does not have a redundant centrifuge, justification can be made to
demonstrate the City has an alternative means of sludge dewatering. When the Lick Creek
centrifuge is out of service, the sludge from the Aerated Sludge Holding Tank is hauled to a
storage tank at Carters Creek. The sludge can then be sent to the Carters Creek centrifuge for
dewatering and taken to the landfill for disposal. However, the sludge dewatering building at
LCWWTP was constructed to include a second centrifuge and an additional unit can be readily
placed at this facility.
Page 14
C~noF Couei:e Srenon
✓.em...jd FDRR„,.,nVO,
EXHIBIT B
3.4 EXISTING PROCESS SUMMARY AND RECOMMENDATIONS
HDR conducted a process-by-process performance assessment to evaluate the existing facilities,
including a review of the capacity of each process against applicable TCEQ rules or industry
design standards. The results are summarized in Table 12. The evaluation data for CCVVVVTP
and LCVVVVTP is included in Appendix A and B, respectively.
Table 12: Process Evaluation Summary
Screening New bypass channel is needed to adhere with TCEQ requirements.
Grit Removal No major deficiencies noted.
Aeration Basins No major deficiencies noted.
Secondary Clarifiers Only Clarifier 3A meets TCEQ criteria. TCEQ Criteria met
when operated in
Final Clarifiers All clarifiers meet TCEQ criteria. series
Gravity Thickener Provision for adding dilution water may be required.
Rotary Drum Thickeners No major deficiencies noted.
ATAD Additional capacity required to accommodate current demand.
Sludge Dewatering Adequate for current and future operations.
Disposal No major deficiencies notes.
UV No major deficiencies noted.
Screening No major deficiencies noted.
Grit Removal No major deficiencies noted.
Aeration Tanks No major deficiencies noted.
Secondary Clarifiers No major deficiencies noted.
Sludge Holding Tank Provides only 3 days of holding capacity.
Sludge Dewatering Adequate for current and future operations.
Disposal No major deficiencies noted.
UV No major deficiencies noted.
Operating parameters for various processes under existing and future flow conditions (thru 2018)
are well within acceptable design parameters with the following exceptions:
■ CCVVVVTP Headworks Bypass Channel: TCEQ rule does not permit having a coarse
screening facility without a bypass channel. A new bypass channel is needed in order to
comply with TCEQ requirements.
/ Page 15
(wl Cn CcxrereSrnnnn
EXHIBIT B
•
-t
■ CCWWTP Clarifiers: The analysis has identified that the CCWWTP secondary clarifiers
individually, do not meet all criteria for Trains 2, 4 and 5. If TCEQ will allow a variance, the
combined volume of each train for secondary and final clarifiers in series meets the TCEQ
criteria.
■ CCWWTP Gravity Thickener: It appears that dilution water might be required for the
gravity thickener at CCWWTP, if used for this purpose. The hydraulic loading rate at
design flow conditions is 143 gpd/ft2, which is well below the new TCEQ minimum of 400
gpd/ft2. Low hydraulic loadings can cause septic conditions, and odor and floating sludge
can result.
■ CCWWTP ATAD: It should be noted that for a certain number of days of the year, the
amount of thickened sludge generated exceeds the current capacity of the digesters. The
ATAD rated capacity is 7,800 lb/day of solids (dry weight). Figure 5 presents a frequency
plot of total suspended solids (TSS). This figure shows for approximately 10% of the time,
the solids load exceeds the rated capacity of the ATAD treatment process.
TSS Load
12,000
CO Rated capacity of
C010,000 - ATAD = 7,800
Ibs/day
8,000 - -
am
6,000
a~
<
4,000
C
O
2 2,000
0
0% 20% 40% 60% 80% 100%
Percent of Time at or less than given Ibs/day TSS
Figure 5: Carters Creek WWTP Average TSS Load
Page 16
~yJ CrnoFC:outxa:Srnnon
EXHIBIT B
n
To accommodate the amount of solids currently produced, an additional ATAD vessel is
recommended. Provisions were made in the original design to readily accommodate the
construction of a fourth vessel. The location is shown in Figure 6.
EXISTING ATAD
DIGAMTERS
N
t
t
t
f - PROPOSED NEW
DIGESTER LOCATION
UV BASIN
ADMIN. BULDING
Figure 6: Carters Creek WWTP Proposed ATAD Expansion
■ LCWWTP Aerated Sludge Holding Tank: With an estimated 42,000 gallons of WAS
produced each day at the plant permitted capacity of 6.0 mgd, the holding tank will provide
approximately three days of sludge storage. With no standby centrifuge, three days
provides very little assurance and flexibility if the centrifuge is out of service. With
inadequate storage capacity, solids can backup in the final clarifiers or aeration basins,
effecting performance of those processes and ultimately effecting plant effluent discharge.
Recommended alternatives for increasing solids storage include renovation of the existing
tank to include use of the outer ring or addition of a new storage tank for WAS storage
only. Renovating the existing tank is expected to be the less expensive of the two options.
4.0 PROJECTED FLOWS
As HDR documented in the Wastewater Demand Analysis 2010 Update, the CCWWTP projected
design flow in 2018 is estimated at 7.5 mgd, which is less than the permitted capacity of 9.5 mgd.
The LCWWTP flow is projected to reach approximately 1.8 mgd in 2018, which is below the
permitted capacity of 2.0 mgd.
Page 17
jl-1; J~ I Cm of Couki:e St'ei ion
vwr/ lrm yr&R~ AY.(fr
EXHIBIT B
Action dates to start the planning process for plant expansions, as listed in Table 13, are based
upon TCEQ rules that require planning to begin when monthly average inflows for a wastewater
plant exceed 75 percent of the plant's permitted capacity for three consecutive months (30 TAC
§305.126). Historical plant flow and customer information as well as future growth projections
provided by the City were used to develop the projected flow and planning period.
Table 13: Planning Initiation and Projected 2018 Flow
75% of Plant Capacity - Initiate Planning 2016 2015
2018 Projected Flow 7.5 mgd 1.8 mgd
Neither wastewater plant will need to be expanded, based on influent flow, by 2018 to
accommodate future growth.
5.0 SLUDGE PROCESSING AND DISPOSAL ALTERNATIVES
This section of the report will focus on a macro level overview of sludge processing and disposal
alternatives to introduce the City to conceptual ideas and estimated capital construction costs.
The alternatives discussed are options the City has specifically requested based on the desire to
continue producing Class A biosolids. To achieve Class A, thermal treatment methods are utilized
that process the sludge for a specific length of time at high temperatures. Several Class A
technologies exist in the marketplace. This evaluation provides an overview of the following
biosolids management technologies:
■ Aerobic digestion
■ Anaerobic digestion
■ Composting
■ Incineration
The feasibility of cogeneration with and without grease digestion is included as part of the
discussion.
W-~ Crn oFCouec:e1 ON Page 18
- 1 k
EXHIBIT B
5.1 ALTERNATIVES FOR PRODUCING CLASS A BIOSOLIDS
5.1.1 Aerobic Digestion
Autothermal thermophilic aerobic digestion (ATAD) is a process that heats biosolids to 55 to 60°C
(131°F to 140°F), and provides aeration for approximately 8 to 10 days to produce Class A
biosolids. The ATAD process is currently in use at CCWWTP and; therefore, the aerobic digestion
evaluation centers on the use of the ATAD technology. The manufacturer of the existing system is
Kruger (Cary, North Carolina). A general figure depicting ATAD operation is included in Figure 7.
Air
No 'AW
Foam Control
System
j\.4
Spiral Aerator Circulation Aerator
Source: Kruger
Figure 7: ATAD Mechanical Equipment
A general process schematic is shown in Figure 8.
WAS THICKENER ATAD
SLUDGE LAND
HOLDING DEWATERING APPLICATION
TANK OR LANDFILL
Figure 8: ATAD Process Schematic
In Section 3.4, it was noted that the ATAD system requires additional capacity to accommodate
the excessive amount of sludge generated during certain parts of the year. When the ATAD
J~ Page 19
(~~7 C~IY Of C.OILF.(:F. $iA l'10t;
d. kvn y'ef.. Rwn/Lklk~
EXHIBIT B
system was originally designed, the layout incorporated the future addition of one ATAD. This
allows one vessel to be constructed and the tied-is readily made to the existing system.
The addition of one ATAD vessel (ATAD #4) and all matching equipment would increase the
system capacity from 7,800 Ibs/d to 10,400 Ibs/d, alleviating the overloading of solids to the ATAD
system. Based on the average influent flow into the plants and the solids loading data, the one
additional ATAD vessel at CCWWTP would also allow the City to include digestion of solids from
LCWWTP at CCWWTP, if so desired. HDR received a quotation for the addition of ATAD #4 from
Kruger with matching mechanical equipment to what is installed at CCWWTP.
At plant permitted capacity, the total amount of solids generated from both facilities is estimated at
15,300 Ibs/d. If the City should decide to retain the ATAD system for digestion, there are 3
options:
■ Centralize an ATAD system at CCWWTP: A centralized ATAD system at CCWWTP
would require the construction of ATAD #5 and #6. This assumes ATAD #4, discussed
above, is already constructed. An additional RDT is also needed to thicken the solids.
■ Centralize an ATAD system at LCWWTP: Relocating a centralized ATAD system at
LCWWTP would require the construction of 6 vessels. This option would not allow the
City to take advantage of the existing ATAD infrastructure in place at CCWWTP. The
addition of 3 RDTs is also needed.
■ Install separate ATAD systems at each WWTP: The CCWWTP ATAD system would
digest sludge from CCWWTP only and the LCWWTP ATAD system would digest sludge
from LCWWTP only. ATAD #5 and #6 would need to be constructed at CCWWTP
(assuming ATAD #4 is also constructed). The RDT system has enough capacity to
thicken CCWWTP solids. An ATAD system capable of digesting a total solids loading of
3,900 Ibs/d is required at LCWWTP. The addition of 1 RDT at LCWWTP is also needed to
thicken sludge before digestion.
Improvements that would be required, in general terms, to provide for these three ATAD options
are listed in Table 14. The information presented in the table considers infrastructure needed if
l ` Page 20
CITY' OF C(1LLF1i0TA I I("
d. Acre y'r/- Frw..h L' JL.
FDR
EXHIBIT B
separate digestion facilities were constructed at each WWTP, or if one centralized facility was
constructed at either Carters Creek or Lick Creek WWTP.
Table 14: Improvements Required for an ATAD Facility
Centralized Facility Separate Facilities
At CCVdWTP At LCWWTP
pip
New N/A. RDT system Construct N/A. RDT system Construct RDT
Construction exists at CC RDT system exists at CC system
Expand RDT
Thickener Expand system at CC to N/A N/A N/A
System handle WAS from
LC
Abandon RDT
Abandon N/A at CC and N/A N/A
System pump WAS to
LC
New N/A. ATAD Construct N/A. ATAD Construct ATAD
Construction system exists at ATAD system exists at
CC system CC system
Expand ATAD at
CC to handle Expand ATAD at
Expand CC to handle
ATAD System future solids N/A future solids N/A
loading and WAS
loading
from LC
Abandon Abandon ATAD at
Abandon N/A ATAD at CC N/A CC and pump WAS
System and pump to LC
WAS to LC
N/A. Sludge N/A. Sludge N/A. Sludge
New N/A. Sludge
storage exists at storage exists storage exists at
storage exists at LC
Construction at LC CC
CC
Expand sludge Expand sludge
Sludge storage at CC to storage at LC Expand sludge Expand sludge
Expand to handle storage at CC to storage at LC to
Storage Tank System handle future future solids handle future handle future
solids loading and
WAS from LC loading and solids loading solids loading
WAS from CC
Abandon N/A N/A N/A N/A
System
/ Page 21
STN-lkN
EXHIBIT B
Table 14: Improvements Required for an ATAD Facility
Centralized Separate Facilities
ntralizAed
.build a: VWTP 2r
PROCESS You will L -
need: At CCViWP At CCWWTP At LCWWTP
Construct WAS N/A. WAS
New Pumping Station Pumping N/A N/A
Construction at CC to pump Station exists
WAS to LC at LC
Sludge Expand WAS
Pumping Expand Pumping
Station System N/A Station at LC N/A N/A
to pump WAS
to CC
Abandon N/A N/A N/A N/A
System
New N/A. Centrifuge N/A. N/A. Centrifuge N/A. Centrifuge
Construction exists at CC Centrifuge exists at LC exists at CC exists at LC
Expand
Expand centrifuge centrifuge Expand centrifuge Expand centrifuge
Expand system at CC to system at LC system at CC to system at LC to
Dewatering to handle
System handle future future provide provide
digested solids digested redundancy redundancy
solids
Abandon Abandon Abandon
System centrifuge system centrifuge N/A N/A
at LC system at CC
5.1.2 Anaerobic Digestion
Anaerobic digestion is a natural series of biological processes in which large numbers of
anaerobic microorganisms convert organic matter into methane and carbon dioxide. It is widely
used to treat wastewater sludge because it provides volume and mass reduction of the input
material. Anaerobic digestion is a renewable energy source because it produces a methane-rich
biogas suitable for energy production. Also, the nutrient rich solids left after digestion can be used
as a soil amendment.
Standard mesophilic anaerobic digestion is commonly used at wastewater treatment plants to
produce Class B biosolids. However, anaerobic digestion for production of Class A biosolids can
be performed in various configurations, as briefly described below. Regardless of the
® Page 22
CmoFCou.ex:r:5rniion
EXHIBIT B
configuration used, the anaerobic digestion process must contain a thermophilic (high
temperature) stage to produce Class A biosolids. A schematic of the biological process is shown
in Figure 9.
Carbohydrates 0 Sugars
Carbonic tcids
and alcohol;
Hydrogen Methane
Fats Fatty acids Acetic acid Carbon dioxide
~--y~ Hydrogen Carbon dioxide
Carbon dioxide
Protein Amino acids A mar:ia
Acetayenesis Rlethauogeuesis
Figure 9: Anaerobic Digestion Biological Process Schematic
5.1.2.1 Thermophilic Anaerobic Digestion
Thermophilic digestion takes place in an optimal temperature range of 50°C to 57°C where
thermophiles are the primary microorganisms present. The increased temperatures reduce
pathogens, the thermophilic bacteria facilitate faster reaction rates than mesophilic bacteria, and
as such, gas yields are higher than obtained from mesophilic digestion. However, thermophilic
digestion requires more heat energy input than mesophilic digestion, resulting in higher energy
cost, stress on vessels and equipment because of the higher operating temperature, and
increased moisture in the digester gas. The thermophilic process destroys approximately 50 to
70% of the volatile solids in the feed sludge.
5.1.2.2 Temperature Phased Anaerobic Digestion (TPAD)
Hydrolysis and acidogenesis can be enhanced by increased operating temperatures; however,
acetogenesis is adversely affected by high operating temperatures inhibiting the conversion of
volatile acids. A temperature phased anaerobic digestion (TPAD) process involves two phases
with different operating temperatures to prevent this problem from occurring. Reactors are
arranged in series with thermophilic digestion typically preceding mesophilic digestion to optimize
the digestion process. A typical TPAD configuration is shown in Figure 10.
Page 23
L}•rvorCnu.rceSrenon
J.4ur rfr rRwnl6i(Lr
EXHIBIT B
Digested Sludge
Digester Gas
Raw
Sludge
Mixing
Mixing
Heat Heat
Exchanger Exchanger
Circulating Circulating
Hot Pump Chilled Pump
Water Water
Thermophilic Mesophilic
Digester Digester
Source: High Performance Anaerobic Digestion White Paper, WEF, January 2004
Figure 10: Temperature Phased Anaerobic Digestion Process Schematic
5.1.2.3 Acid-Gas Phased Anaerobic Digestion
Acid-Gas Phased Digestion separates the digestion process into an "acid phase" and a "methane
phase" using separate reactors to provide the optimum environment for each type of bacteria.
Acidogenic bacteria, through the production of volatile fatty acids (VFAs), reduce the pH in the
tank while methanogenic bacteria require a stable pH and temperature range for optimum
performance. The acid phase is typically highly loaded (1 to 2 day retention time) and produces
carbon dioxide, while the methane phase is lightly loaded (10 to 15 day retention time), and
produces methane gas. A typical acid-gas phase digestion configuration is shown in Figure 11.
Digester Gas
Acidified
Digested Digested
Raw Sludge Sludge Sludge
Mixing
H eat
Acid Exchanger
Digester
Gas
Digester
Circulating
Hot Water Pump
Source: High Performance Anaerobic Digestion White Paper, WEF, January 2004
Figure 11: Acid-Gas Phased Digestion Process Schematic
` Page 24
1DR 1 4~ CmocCouereSrenon
dw Fe..: y":M R..nlt:lf.~
EXHIBIT B
5.1.3 Composting
Use of composting for biosolids management will produce a Class A product that can be applied
as a soil conditioner and fertilizer to gardens, food and feed crops, and rangelands. Dewatered
solids would need to be mixed with a bulking agent, such as wood chips, to provide carbon and
increase porosity. The microbial activity during the active composting phase provides the heat to
destroy the pathogens.
There are three common methods of composting of biosolids:
■ Aerated static pile. Dewatered cake is mechanically mixed with a bulking agent and
stacked into long piles over a bed of pipes through which air is injected.
■ Windrow. Dewatered cake is mechanically mixed with a bulking agent and piled in long
rows, short in height. The windrows are mechanically turned periodically to increase the
amount of oxygen to the compost.
■ In-vessel. A mixture of dewatered cake and a bulking agent is fed into a silo or vessel
where mechanical equipment is used to aerate, mix and move the product through the
vessel to the discharge point. Air is usually supplied into the mixture.
Time and temperature requirements for biosolids composting are outlined in Table 15.
Table 15: 40 CFR Part 503 Time and Temperature Requirements for Composting
Requirements
Product Method
Class A Aerated Static Pile 550C (131 OF) for at least 3 days
Class A Windrow 550C (131 OF) for at least 15 days with 5 turns
Class A In-Vessel 551)C (131°F) for at least 3 days
Both digested and raw solids can be composted. However, it is preferred to compost digested
solids to significantly reduce the amount of odor emissions that will be generated. In addition,
carbon and nitrogen content of the sludge has to be balanced with the bulking agent to achieve a
C:N ratio of 25 to 35 parts carbon to 1 part nitrogen to ensure microbial growth, which is more
challenging to achieve with raw solids.
J~ r Page 25
~~J Ca n'oF Cotttt:e Srnnon
EXHIBIT B
The City could construct a composting facility at each wastewater treatment plant or combine
solids from both plants and compost at a single location. Using a rule of thumb of 0.2 acres of
compost area/mgd is needed, 6 acres would be required for CCWWTP, and 1.2 acres for
LCWWTP, or approximately 7 acres for a combined facility at peak flow. A general process
schematic is shown in Figure 12.
WAS THICKENER MESOPHILIC
DIGESTION
SLUDGE COMPOSTING MARKETABLE
HOLDING DEWATERING (OPEN, PRODUCT, LAND
TANK ENCLOSED, OR APPLICATION, OR
VESSEL) LANDFILL
Figure 12: Composting Process Schematic
Improvements that would be required, in general terms, to provide for a compost facility are listed
in Table 16. The information presented in the table considers infrastructure needed if individual
compost facilities were constructed at each WWTP, or if one combined facility was constructed at
either Carters Creek or Lick Creek WWTP.
Table 16: Improvements Required for a Composting Facility
Separate To build a: Centralized Facility New N/A. RDT system Construct RDT N/A. RDT system Construct RDT
Construction exists at CC system exists at CC system
Expand RDT
Thickener Expand system at CC to N/A N/A N/A
System handle WAS from
LC
Abandon RDT
Abandon N/A at CC and N/A N/A
System pump WAS to
LC
Page 26
~~7` (,tnoFCcxLFrisSrAricm
EXHIBIT B
Table 16: Improvements Required for a Composting Facility
You will
pIrM i i1A, AtLCWWTP AtCCWWTP AtLCWWTP
need:
N/A. ATAD Construct N/A. ATAD Construct
New
system exists at mesophilic system exists at mesophilic
Construction
cc digestion cc digestion
Convert ATAD into
mesophilic Convert ATAD into
Expand digestion and mesophilic
Mesophilic System expand to handle N/A digestion to N/A
Digestion1 future solids handle future
loading and WAS solids loading
from LC
Abandon
Abandon N/A ATAD at CC N/A N/A
System and pump
WAS to LC
N/A. Sludge N/A. Sludge N/A. Sludge
New N/A. Sludge
storage exists at storage exists storage exists at
storage exists at LC
Construction at LC CC
CC
Expand sludge Expand sludge Expand sludge Expand sludge
Sludge storage at CC to storage at LC storage at CC to storage at LC to
Expand to handle
Storage Tank System handle future future solids accommodate accommodate
solids loading and loading and future solids future solids
WAS from LC WAS from CC loading loading
Abandon N/A N/A N/A N/A
System
Construct WAS N/A. WAS
New Pumping Station Pumping N/A N/A
Construction at CC to pump Station exists
WAS to LC at LC
Sludge Expand WAS
Pumping Expand Pumping
Station System N/A Station at LC N/A N/A
to pump WAS
to CC
Abandon N/A N/A N/A N/A
System
` Page 27
I~~4Y OFC()LliliF S(Ail(4N
Jrb ./"d. Rrwnh iillq
EXHIBIT B
Table 16: Improvements Required for a Composting Facility
To build a: Centralized Facility Separate Facilities
New N/A. Centrifuge N/A . N/A. Centrifuge N/A. Centrifuge
Construction exists at CC Centrifuge exists at LC exists at CC exists at LC
Expand
Expand centrifuge centrifuge system at LC Expand centrifuge Expand centrifuge
Dewatering Expand system at CC to to handle system at CC to system at LC to
System handle future future provide provide
digested solids digested redundancy redundancy
solids
Abandon Abandon Abandon
System centrifuge system centrifuge N/A N/A
at LC system at CC
Composting New Construct Construct Construct Construct compost
Pad with Construction compost facility compost facility compost facility facility
Odor Control Expand
and System N/A N/A N/A N/A
Equipment Abandon
Storage System N/A N/A N/A N/A
1A TAD could potentially be converted to standard aerobic or anaerobic digestion.
The thickener would be required to increase the percent solids of the WAS from approximately 1 IN,
to 4% to feed a digester, as is currently done. To have a centralized facility at CCWWTP, a third
RDT would need to be installed. To centralize at LCWWTP, a new thickening facility would be
required since one currently does not exist.
As an alternative to constructing new mesophilic anaerobic digesters at CCWWTP, the aerobic
digestion system at CCWWTP could be modified from the ATAD system to a standard aerobic
digestion system or converted to mesophilic anaerobic digestion (additional volume still may need
to be required). It is unnecessary to compost the sludge directly from the ATAD system; since the
ATAD system already produces a Class A product.
One centrifuge would need to be added at each facility to dewater at each individual WWTP
matching the existing units, mainly for operational redundancy. Two centrifuges are needed at a
combined facility, either by purchasing a new centrifuge or relocating an existing centrifuge.
® Page 28
Cou.Ex:r Sonora
I ,t ,u„e.)'eerm..a ✓.ty
EDR
EXHIBIT B
While a compost facility can be open to the atmosphere, it is very difficult to manage odors that
are generated. With the close proximity of the plants to housing areas and parks, HDR would
recommend that enclosed compost facilities or the use of vessels be considered. An enclosed
building is required to be kept at a negative pressure in order to contain, capture and scrub the air
before emitting to atmosphere.
5.1.4 Incineration
There are currently 204 sewage sludge incinerators (SSIs) operating in the United States. Two
types of incineration systems are commonly used: multiple hearth furnaces (MHFs) and fluidized
bed incinerators (FBIs). Both use high temperatures in the presence of air and will produce ash.
The operation of the MHF involves a two step process consisting of drying and then combustion.
The FBI is a single step process; flashing off the water and burning the biosolids at the same time.
It should be noted that the term drying, when discussing incineration is the process of raising the
temperature of the solid/liquid matrix to 100°C (212°F) to drive off the liquid, and is not associated
with dewatering. Because FBIs are generally better at meeting federal emission standards,
retaining heat more effectively, and has less mechanical components, most new incinerator
installations utilize this technology. For this reason, this report will focus on FBIs for the
evaluation, and in particular, the Thermylis system manufactured by Degremont Technologies.
Incineration can be performed in a single process train as shown on Figure 13.
Flue Gas
Sand
Silo
ER11YL Scrubber
Indrrrator
Primary Heat
Exchanger Stack
Inlet Sludge
Ash
Pumps
No. 2 Fuel Oil Train Fluidization Air
To Ash
Treatment
Source: Degremont Technologies
Figure 13: Thermylis High Temperature Fluid Bed Process Schematic
® Page 29
*7 Ui ofCcxLec:eA-4n4'
EXHIBIT B
Heat is recovered and sent back to the head of the incinerator to reduce the usage of
supplemental fuel for startup and combustion. Based on the quantity of solids available,
cogeneration is not advantageous with this system. It is estimated that less than 100 kW can be
produced.
One of the factors for autogenous combustion to occur is the dewatering of the sludge prior to
incineration. It is estimated a minimum of 28% cake solids is needed for the solids to burn
autogenously. The Thermylis system shown above assumes solids are dewatered to 31.5%.
Achieving this high percent of dewatered solids using WAS only is not attainable with solely
centrifuge technology. The WAS sludge would need to be:
■ combined with primary sludge, resulting in the construction of primary clarifiers at each
WWTP, and centrifuged prior to incineration
■ dewatered to 16-17% solids (as currently done), then incinerated resulting in the
continuous use of supplemental fuel in the incinerator, or
■ dewatered to 16-17% solids, processed through a dryer to obtain 35% solids (which uses
a continuous fuel feed of natural gas), then incinerated (autogenous combustion).
A general process schematic incorporating incineration with a dryer is shown in Figure 14.
WAS THICKENER
4e %
@DEE] OPTIONAL
♦ DRYER
SUPPLEMENTAL
FUEL
=INCINERATOR ASH LANDFILL
HEAT RECOVERY MANAGMENT
Figure 14: Incineration Process Schematic
~of Page 30
1DR Cm Co«eca: k f A, ~l Wk,
EXHIBIT B
While incineration provides the greatest volume reduction compared to all other biosolids
management technologies, the resulting ash that is produced needs to be managed as well. It
can be expected that at least 4,600 lbs/d of wet ash will be produced that will need thickening and
dewatering, using a vacuum filter as an example, prior to final disposal.
In order to achieve the maximum benefit with incineration, the solids should be combined from
each plant and incinerated at a single location. Improvements that would be required, in general
terms, to provide for a single incineration facility are listed in Table 17.
Table 17: Improvements Required for an Incineration Facility
To build a: Centralized Facility
•
You will
need: At CCWWTP At LCWWTP
New
N/A. RDT system exists at CC Construct RDT system
Construction
Thickener Expand Expand RDT system at CC to N/A
System handle WAS from LC
Abandon N/A Abandon RDT at CC and pump WAS to
System LC
New N/A N/A
Construction
Digestion Expand System N/A N/A
Abandon
Abandon ATAD at CC N/A. No digestion exists at LC
System
New
N/A. Sludge storage exists at CC N/A. Sludge storage exists at LC
Construction
Sludge Expand Expand sludge storage at CC to Expand sludge storage at LC to handle
Storage Tank System handle future solids loading and future solids loading and WAS from CC
WAS from LC
Abandon N/A N/A
System
TT Page 31
~~~~FCorux:eSrnnon
EXHIBIT B
•
Table 17: Improvements Required for an Incineration Facility
Centralized Facility
To build a: (CCWWTP or LCWWTP)
New Construct WAS Pumping Station at
Construction CC to pump WAS to LC N/A. WAS Pumping Station exists at LC
Sludge Expand N/A Expand WAS Pumping Station at LC to
Pumping System pump WAS to CC
Station Abandon
N/A N/A
System
New N/A. Centrifuge exists at CC N/A. Centrifuge exists at LC
Construction
Expand Expand centrifuge system at CC to Expand centrifuge system at LC to
Dewatering System handle future digested solids handle future digested solids
Abandon Abandon centrifuge system at LC Abandon centrifuge system at CC
System
New Construct dryer facility Construct dryer facility
Construction
Dryer Expand N/A N/A
(Optional) System
Abandon N/A N/A
System
New Construct incinerator facility Construct incinerator facility
Construction
Incinerator Expand System N/A N/A
Abandon N/A N/A
System
New Construct ash treatment facility Construct ash treatment facility
Construction
Ash Expand N/A N/A
Treatment System
Abandon N/A N/A
System
Regulations for incineration fall under the Texas Clean Air Act (TCAA), 40 CFR Part 60, and 40
CFR Part 503, Subpart E. There are two types of permits that need to be obtained; a construction
permit and an operating permit. The construction permit is required before construction
commences on any phase of the project. A public notice period is required. An operating permit,
also called a Title V permit, will state requirements for operating pollution control equipment,
Page 32
fD I LIF1:C $1'A 1101:
dr kcm.J'dr /...e..A Li14~
R (W/eon,
EXHIBIT B
discharge limitations on pollution emissions, monitoring requirements, and reporting violations
similar in nature to what the NPDES permit states for effluent discharge.
On March 21, 2011, EPA issued the final rule for new emission limits for MH and FB incinerators,
shown in Table 18. EPA has defined sewage sludge as meeting the solid waste definition when
considering incineration only. For all other biosolids management programs (i.e. land application),
sewage sludge is not considered a solid waste.
Table 18: 40 CFR Part 60 Emission Limits for New SSI Units
Pollutant Units Emission Limit for Emission Limit for
Cadmium (Cd) mg/dscm @ 7% 02 0.0024 0.0011
Carbon Monoxide (CO) ppmv-d @ 7% 02 52 27
Hydrochloric Acid (HCl) ppmv-d @ 7% 02 1.2 0.24
Mercury (Hg) mgldscm @ 7% 02 0.15 0.0010
Nitrogen Oxides (NO,,) ppmv-d @ 7% 02 210 30
Lead (Pb) mg/dscm @ 7% 02 0.0035 0.00062
PCDD/PCDF, TMB ng/dscm @ 7% 02 0.045 0.013
Dioxins/Furans
PCDD/PCDF, TEQ ng/dscm @ 7% 02 0.0022 0.0044
(Dioxins, Furans)
Particulate Matter (PM) mgldscm @ 7% 02 60 9.6
Sulfur Dioxide (S02) ppmv-d @ 7% 02 26 5.3
The City would need to demonstrate initial and annual compliance with the above emission limits
using EPA-approved emission test methods. If sources demonstrate continued compliance, less
frequent testing could be allowed. Other testing and monitoring includes: Initial and annual
emissions performance tests, bag leak detection systems for fuel-fired controlled units,
continuous parameter monitoring and annual inspections of air pollution control devices that are
used to meet emission limits. Visible emission testing of the ash handling operations is also
required during each compliance test.
The City will need to conduct a siting analysis which includes submitting a report that evaluates
site-specific air pollution control alternatives that minimize potential risks to public health or the
environment, considering costs, energy impacts, non-air environmental impacts and any other
Page 33
~(:tnoFCou.et:eSTnnon
A. a . y n, w-A ova
EXHIBIT B
factors that may be deemed necessary. Monitoring plans must be submitted for any continouous
monitoring system or bag leak detection, as well as the ash handling system specifying operating
procedures to ensure fugitive emission limits are met. At least one operator or supervisor is
required to complete operator training, and have refresher training annually.
The City is required to keep the following documentation for at least 5 years:
■ records of all tests (initial and compliance testing)
■ deviation reports
■ operating parameter data
■ continuous monitoring data
■ maintenance and inspection records of the air pollution control devices
■ the siting analysis described above
■ the monitoring plans described above
■ operator training and qualification records
■ compliance reports
As these rules were just finalized by EPA at issuance of this final report, additional measures by
TCEQ as a result of this final rule are unknown at this time.
5.2 COGENERATION AND GREASE DIGESTION
Cogeneration at wastewater treatment facilities is the simultaneous generation of heat and power.
Typically, methane gas is captured from the anaerobic digestion process (mesophilic or
thermophilic) and used as a fuel source to a turbine or engine-generator which is used to create
electricity. Heat is recovered from the combustion process of the turbine or engine-generator and
used to heat water or steam. The heated water or steam is used to heat the anaerobic digesters,
and/or providing building heat. A cogeneration system is also known as a combined heat and
power system, or CHP. A general process schematic of a cogeneration system is shown in Figure
15:
Page 34
CnY Of COLLEGE SiA"fl(lN
Cdr Mun.J'drc Ao.....1, til6j
EXHIBIT B
yy~r Heat Recovery
Unit
Hot Exhaust
Gases
Building
Engine Electricity
Facility
Fuel or Generator
Turbine
Source: EPA Combined Heat and Power Partnership
Figure 15: Cogeneration Process Schematic
Based on a solids loading rate of approximately 15,300 Ibs/d at 4% solids (estimated solid
production at 11.5 MGD), 66% volatile solids, and a 20-day solids retention time (SRT), the City
would need to construct approximately 920,000 total gallons of anaerobic digester volume to
replace the 3-vessel ATAD system. This system is estimated to produce 45,500 cubic feet per
day (cfd) of methane gas. The heat would be recovered using a heat exchanger to assist in
heating of the sludge to thermophilic temperatures. A cogeneration system would produce
approximately 110 kW of electricity, potentially saving the City $17,350 a year in electrical costs.
This small amount of electrical savings results in a significantly long payback period of the capital
needed to construct a CHP system. When carbon credits become available, the City could
potentially save an additional $23,000/yr. The carbon credit is not included in the simple payback
calculation.
Brown grease is 95% volatile. Brown grease can provide a significant increase in gas production
using minimal digester volume and producing a minimal increase of solids for disposal. A graphic
representation on the volatile destruction of grease is shown in Figure 16.
Page 35
CinofCoueceSrNru,r:
EXHIBIT B
100 b Solids
95 lb Volatile Anaerobic
Digestion, 959 10 lb Solids
Volatile Destroyed
5 lb Volatile
5 lb Inert 5 lb Inert Crease Stabillized Sludge
95% Volatile 50% volatile
Figure 16: Brown Grease Digestion Example
A grease receiving station would be located near the digesters and consist of the following
components: grease storage tank, mixing chopper pump that recirculates the grease in the tank,
and a feed pump to convey grease from the receiving tank to the digester feed line. An example
of a 5,000 gallon grease storage tank is shown in Figure 17. The one mixing pump and one feed
pump are on the back side of the tank mounted to an equipment pad at ground level.
Digester
Y
[Grease
eceiving
ank
t ( }
h fi
Figure 17: Grease Receiving Station Example
A simple economic analysis was performed comparing anaerobic digestion of WAS only without
grease, anaerobic digestion of WAS only with grease, and anaerobic digestion of primary sludge
and WAS with grease at a centralized facility, as shown in Table 19. Primary sludge would come
® Page 36
~ 7 Cn of Courxa; J- (#o
EXHIBIT B
~,ra, •
f
from the construction of primary clarifiers. The simple economic analysis was performed based on
estimated capital costs, an assumed power savings of $0.02/kW-hr and an assumed grease
tipping fee of $0.05/gal of grease received. O&M costs are not considered.
Table 19: CHP System Economics at 11.5 MGD
Digestion Anaerobic Without Grease With Grease Grease
(WAS only) (WAS only) (Primary Sludge and WAS)
Anaerobic Digester 0.92 0.92 2.1
Total Volume MG
Minimum Grease N/A 7,600 24,100
Feed Rate (gpd)
Digester Gas 45,500 170,000 398,000
Production cfd
Cogeneration (kW) 110 400 1300
Electrical Savings' $17,350 $63,000 $205,000
$1 r
Grease Tipping Fee
Income2 $1 r NIA $137,500 $439,800
Total Net Revenue $17,350 $200,500 $644,800
$1 r
Carbon Credit3 ($lyr) $23,000 $86,300 $260,500
Estimated Payback >30 12.5 11.0
Period4,5 r
' Assumes $0.02/kW-hr savings
2 Assume $0.05/gal grease
3 Assumes $40/ton CO2 credit
4 Carbon credit is not included in payback period estimate
5 Payback considers only the cogeneration and grease receiving station and not other required
improvements (i.e. anaerobic digesters and primary clarifiers)
It is estimated that 1,700 gpd of grease could be collected from restaurants in College Station to
use in digestion. The City would need to obtain brown grease from additional sources to meet the
minimum grease feed rate outlined in Table 19.
A general process schematic incorporating thermophilic anaerobic digestion with grease is shown
in Figure 18.
® Page 37
~~7 (.77Y OF C(1LLEL;F $I'AIl(M
rA. Mnr %r/,r Riwnh le/G
1DR
EXHIBIT B
li
BROWN
GREASE
RECEIVING
STATION
THERMO SLUDGE ENDA:PPI.ICATIO. WAS
ANAEROBIC HOLDING DIGESTION TANK OR NFILL
HEATRECOVERY
METHANE
GAS COGENERATION EXHAUST
Figure 18: Thermophilic Anaerobic Digestion with Grease Process Schematic
Improvements that would be required, in general terms, to provide for processing sludge from both
VWVfPs at a single facility are listed in Table 20. The information presented in the table considers
infrastructure needed if a centralized facility was constructed at either Carters Creek or Lick Creek
W l
Table 20: Improvements Required for a Centralized Anaerobic Digestion Facility
To build a: Centralized Facility
PROCESS ,
New
N/A. RDT system exists at CC Construct RDT system
Construction
Expand Expand RDT system at CC to
Thickener System handle WAS from LC N/A
Abandon N/A. Pump WAS to CC Abandon RDT at CC and pump WAS to
System LC
New N/A N/A
Construction
Digestion Expand System N/A N/A
Abandon Abandon ATAD at CC N/A. No digestion exists at LC
System
Page 38
COLLWl
dv km y'rh R...anF {i11.
EXHIBIT B
I M M r, n. M a; MR 11, M11
Table 20: Improvements Required for a Centralized Anaerobic Digestion Facility
Centralized Facility
To build a: 'i
You will
•
New
N/A. Sludge storage exists at CC N/A. Sludge storage exists at LC
Construction
Sludge Expand Expand sludge storage at CC to Expand sludge storage at LC to handle
Storage Tank System handle future solids loading and future solids loading and WAS from CC
WAS from LC
Abandon N/A N/A
System
New Construct WAS Pumping Station at
Construction CC to pump WAS to LC N/A. WAS Pumping Station exists at LC
Sludge Expand Expand WAS Pumping Station at LC to
Pumping System N/A pump WAS to CC
Station Abandon
N/A N/A
System
New
N/A. Centrifuge exists at CC N/A. Centrifuge exists at LC
Construction
Expand Expand centrifuge system at CC to Expand centrifuge system at LC to
Dewatering System accommodate future digested accommodate future digested solids
solids
Abandon Abandon centrifuge system at LC Abandon centrifuge system at CC
System
New Construct dryer facility Construct dryer facility
Construction
Dryer Expand N/A N/A
System
Abandon N/A N/A
System
New
Construct incinerator facility Construct incinerator facility
Construction
Incinerator Expand System N/A N/A
Abandon N/A N/A
System
New Construct ash treatment facility Construct ash treatment facility
Construction
Ash Expand N/A N/A
Treatment System
Abandon N/A N/A
System
Page 39
CouEC:e Suncx:
EXHIBIT B
x
5.3 CENTRALIZED SOLIDS HANDLING FACILITY
An alternative to expanding and constructing new solids handling improvements at each of the
wastewater treatment plants is construction of a centralized solids handling facility at a new site
location. The WAS would be pumped from each wastewater plant to the new centralized facility
location for sludge stabilization and production of Class A biosolids. The tentative location is
shown in Figure 19, and is located approximately 8 miles from the CCWWTP, 3 miles from the
LCWWTP, and approximately 30 miles from the new landfill location in Carlos, TX.
e
• 7*11M P
c„
Do iey Road
Pump S tbn
COLLEGE
aTAMN
• Utk Creak WWTP
C•ntmKwd Slutlp*
Pre slrq FaoNky
F-* I
-0 •t
d`
Figure 19: Centralized Sludge Processing Facility Location
Each of the four previously discussed alternatives is listed in Table 21, generally as ATAD,
anaerobic digestion, composting, and incineration. For each sludge processing alternative, an "X"
marks the infrastructure that would need to be constructed.
Page 40
~j GnoF Con.tr.r_Srnrion
- II J. ice.,.. y d,. k-j' t;Jk,
EXHIBIT B
Table 21: Improvements Required for a Centralized Facility
IMPROVEMENT
Composting Incineration
Civil Site Improvements x X X X
Operations Center x X X X
Maintenance Garage/Equipment Storage x X X X
Sludge Pump Station x X X X
Sludge Holding Tanks x X X X
Grease Receiving Station x X'
Thickener x X X X
Dewatering x X X X
Digestion x X X
Odor Control x X X X
Compost Pad X
Ash Treatment (thickening, dewatering) X
Air Permitting x X X X
'Grease can be incinerated, but was not evaluated as part of this report
5.4 SLUDGE PROCESSING ALTERNATIVES COST ANALYSIS
Other than a few "specialty" items associated with specific thermal technology such as a
composting facility for compost, a grease receiving station and cogeneration with anaerobic
digestion, and an incinerator/dryer for incinerating biosolids, the solids handling processes are
essentially the same for each thermal technology. Because of this, the cost estimate prepared for
each type of thermal technology is divided into baseline costs and add-on cost items to facilitate
the alternative discussion. These costs are based on sizing the equipment to process the
estimated amount of solids at plant permitted capacity. The costs presented herein are planning
level capital cost estimates only and do not include engineering, legal, operation (ie.chemical, fuel,
labor, electricity, etc), maintenance (i.e., labor, preventative maintenance supplies, etc.) land
acquisition, easements, environmental impact, electrical, instrumentation and controls, and
unusual geotechnical costs.
5.4.1 ATAD
Table 22 represents the planning level construction cost of the ATAD alternative at each individual
WWTP, and at a single WWTP location at plant permitted capacity. It is anticipated that a total of
five ATAD units matching the current vessels are needed to process solids when constructed at a
single facility. Four units are needed at CCWWTP and two units are needed at LCWWTP. The
® Page 41
*7 C~r~oFCcxLecasSIAIIuN
FDR 9~ i- -J 'A' "7
EXHIBIT B
installation cost is assumed to be 35% of the capital cost. An add-on line item for the option of
constructing a centralized facility is included. The cost of this option is in addition to the
construction total shown for the ATAD alternative.
Table 22: ATAD Cost Estimate
TO CONSTRUCT SEPARATE FACILITIES TO CONSTRUCT A CENTRALIZED
PROCESS ITEM AT EACH WWTP FACILITY
At At
• COST At CCWWTP At LCWWTP
BASELINE COSTS
ATAD $1,174,500 $2,349,000 $3,523,500 $2,349,000 $5,872,500
RDT Exist ne $1,424,500 $1,424,500 $712,250 $2,136,750
Centrifuge $2,002,000 $702,000 $2,704,000 $2,002,000 $702,000
Sludge Pump Station N/A N/A N/A $135,000 $135,000
Sludge Conveyance Piping N/A N/A N/A $5,473,248 $5,473,248
Sludge Storage Tank N/A N/A N/A $700,000 $700,000
Subtotal $3,176,500 $4,475,500 $7,652,000 $11,371,498 $15,019,498
Air Permitting (15% of ATAD) $176,175 $352,350 $528,525 $352,350 $880,875
Odor Control (25%) $794,125 $1,118,875 $1,913,000 $2,842,875 $3,754,875
Capital Subtotal $4,146,800 $5,946,725 $10,093,525 $14,566,723 $19,655,248
General Conditions (25%) $1,036,700 $1,486,681 $2,523,381 $3,641,681 $4,913,812
Contractor 0&P (15%) $622,020 $892,009 $1,514,029 $2,185,008 $2,948,287
Subtotal $5,805,520 $8,325,415 $14,130,935 $20,393,412 $27,517,347
Contingency (40%) $2,322,208 $3,330,166 $5,652,374 $8,157,365 $11,006,939
Construction Total $8,127,728 $11,655,581 $19,783,309 $28,550,776 $38,524,285
ADD-ON COSTS
Add-on Cost for New Centralized Facility $25,000,000
There is a cost savings by constructing a combined solids ATAD facility at CCWWTP since
existing infrastructure can be considered. No digestion facility exists at LCWWTP, so all new
construction would be required.
5.4.2 Thermophilic Anaerobic Digestion
Table 23 represents the planning level cost of constructing thermophilic anaerobic digestion at a
single WWTP location at plant permitted capacity. It is not advantageous of the City to construct
digestion facilities at each wastewater treatment plant because not enough methane can be
produced from the destruction of solids at LCWWTP to support a cogeneration facility. For
LD ^ Page 42
l I ( 1. Crn'oFCcx ia:Srsnon
EXHIBIT B
maximum benefit, a single facility needs to be constructed with a grease receiving station. As
previously shown in Table 18, the capital cost of the CHP system can be paid back in
approximately 8 years which then becomes a source of revenue for the City.
The installation cost is assumed to be 35% of the capital cost. Add-on line items for the options of
grease receiving station, a cogeneration system, and a new centralized solids handling facility are
included. The costs of these options are in addition to the construction total shown for the
anaerobic digestion alternative.
Table 23: Thermophilic Anaerobic Digestion Cost Estimate
TO CONSTRUCT A CENTRALIZED FACILITY
PROCESS ITEM TIM -
BASELINE COSTS
Thermophilic Anaerobic Digestion $5,000,000 $5,000,000
RDT @ CCWWTP $712,250 N/A
RDT@ LCWWTP N/A $2,136,750
Centrifuge @ CCWWTP $2,002,000 N/A
Centrifuge @ LCWWTP N/A $702,000
Sludge Pump Station $182,250 N/A
Sludge Conveyance Piping $5,473,248 $5,473,248
Sludge Storage Tank $945,000 $945,000
Subtotal $14,314,748 $14,256,998
Air Permitting (15% of digester) $750,000 $750,000
Odor Control (25%) $3,578,687 $3,564,250
Capital Total $18,643,435 $18,571,248
General Conditions (25%) $4,660,859 $4,642,812
Contractor 0&P (15%) $2,796,515 $2,785,687
Subtotal $26,100,809 $25,999,747
Contingency (40%) $10,440,324 $10,399,899
Construction Total $36,541,133 $36,399,645
ADD-ON COSTS
Add-on Cost for Grease Receiving Station $500,000 $500,000
Add-on Cost for Cogeneration (WAS only with grease digestion) $2,000,000 $2,000,000
Add-on Cost for Primary Clarifiers $3,000,000 $3,000,000
Add-on Cost for Cogeneration (Primary Sludge and WAS with grease) $6,500,000 $6,500,000
Add-on Cost for Thermophilic Anaerobic Digestion of Primary Sludge and WAS $6,111,100 $6,111,100
Add-on Cost for New Centralized Facility $25,000,000
Page 43
( I ~j Cnv of Ccni.rc:c Srarion
` do- lvm rjrh R,e,..Jl~lk~
EXHIBIT B
5.4.3 Composting
Table 24 represents the planning level cost of constructing an open composting facility at each
individual WWTP, or at a single WWTP location at plant permitted capacity. The installation cost
is assumed to be 35% of the capital cost. Add-on line items for the options of mesophilic
anaerobic digestion, an enclosed compost facility, and a new centralized solids handling facility
are included. The costs of these options are in addition to the construction total shown for the
open composting facility.
Table 24: Composting Cost Estimate
TO CONSTRUCT SEPARATE FACILITIES TO CONSTRUCT A
PROCESS At At At At
BASELINE COSTS
Composting Facility - Open Area $1,822,500 $810,000 $2,632,500 $2,600,000 $2,600,000
RDT @ CCWWTP $712,250 N/A $712,250 $712,250 N/A
RDT@ LCWWTP N/A $2,136,750 $2,136,750 N/A $2,136,750
Centrifuge @ CCWWTP $2,002,000 N/A $2,002,000 $2,002,000 N/A
Centrifuge @ LCWWTP N/A $702,000 $702,000 N/A $702,000
Sludge Pump Station N/A N/A N/A $135,000 $135,000
Sludge Conveyance Piping N/A N/A N/A $4,224,000 $4,224,000
Sludge Storage Tank N/A N/A N/A $700,000 $700,000
Subtotal $4,536,750 $3,648,750 $8,185,500 $9,661,000 $9,785,500
Air Permitting (15% of compost facility) $273,375 $121,500 $394,875 $390,000 $390,000
Odor Control (25%) $1,134,188 $912,188 $2,046,375 $2,415,250 $2,446,375
Capital Total $5,944,313 $4,682,438 $10,626,750 $12,466,250 $12,621,875
General Conditions (25%) $1,486,078 $1,170,609 $2,656,688 $3,116,563 $3,155,469
Contractor 0&P (15%) $891,647 $702,366 $1,594,013 $1,869,938 $1,893,281
Subtotal $8,322,038 $6,555,413 $14,877,450 $17,452,750 $17,670,625
Contingency (40%) $3,328,815 $2,622,165 $5,950,980 $6,981,100 $7,068,250
Construction Total $11,650,853 $9,177,578 $20,828,430 $24,433,850 $24,738,875
ADD-ON COSTS
Add-on Cost for using Mesophilic Anaerobic Digestion N/A N/A N/A $7,964,286 $7,964,286
Add-on Cost for Composting in an Enclosed Facility $455,625 $202,500 $658,125 $650,000 $650,000
25% of open composting)
Add-on Cost for New Centralized Facility $25,000,000
® Page 44
~~'1 Cn oFCouECeSrnrinn
I Jv q'rM Rw~ll:/1.~
EDR
EXHIBIT B
k
While a closed composting facility increases the cost up to approximately $650,000, odors
generated during the composting operation can more readily be captured and treated.
5.4.4 Incineration
Table 25 represents the planning level cost of constructing a single incineration facility for
anticipated solids at plant permitted capacities. The installation cost is assumed to be 35% of the
capital cost. Add-on line items for the options of a dryer, ash management, primary clarifiers, and
a new centralized solids handling facility are included. The costs of these options are in addition
to the construction total shown for the incinerator.
Table 25: Incineration Cost Estimate
TO CONSTRUCT A CENTRALIZED FACILITY
PROCESS ITEM
At CCWWTP At LCWWTP
BASELINE COSTS
Incinerator $11,745,000 $11,745,000
RDT @ CCWWTP $712,250 N/A
RDT@ LCWWTP N/A $2,136,750
Centrifuge @ CCWWTP $877,500 N/A
Centrfuge @ LCWWTP $702,000 $702,000
Sludge Pump Station $135,000 N/A
Sludge Conveyance Piping $5,473,248 $5,473,248
Sludge Storage Tank $700,000 $700,000
Subtotal $20,344,998 $20,756,998
Air Permitting (30% of incinerator) $3,523,500 $3,523,500
Odor Control (25%) $5,086,250 $5,189,250
Capital Total $28,954,748 $29,469,748
General Conditions (25%) $7,238,687 $7,367,437
Contractor 0&P (15%) $4,343,212 $4,420,462
Subtotal $40,536,647 $41,257,647
Contingency (40%) $16,214,659 $16,503,059
Construction Total $56,751,305 $57,760,705
ADD-ON COSTS
Add-on Cost for Dryer $2,565,000 $2,565,000
Add-on Cost for Vacuum Filter and Building (Ash $962,500 $962,500
M mt
Add-on Cost for Primary Clarifiers @ CCWWTP $2,400,000 $2,400,000
Add-on Cost for Primary Clarifiers @ LCWWTP $600,000 $600,000
Add-on Cost for New Centralized Facility $25,000,000
Page 45
Courca n-,m
fD3 1 4oI n(, r d
K b-.rn y"e/r R..a.J~ L:llry
EXHIBIT B
Supplemental fuel is required during startup, and would be required continuously during
combustion if feeding WAS that has been dewatered to 17% solids, as is current operation.
However, if the percent solids of cake feed to the incinerator is at least 28%, the incinerator would
not need supplemental fuel during combustion. To get WAS to 28% solids, primary clarifiers would
need to be constructed at each WWTP. In lieu of primary clarifiers, a dryer could be installed;
however, the dryer would be fueled with natural gas. Operational and maintenance costs are not
included in the capital cost estimate.
5.5 SUMMARY OF ECONOMIC AND NON-ECONOMIC CONSIDERATIONS
Table 26 presents a summary of economic and non-economic considerations when comparing the
advantages and disadvantages of the various technologies considered.
® Page 46
~J (an-nr Coukc:e Srtinnn
I J.r lut .J'rM bv.nA L'n(try
H R
EXHIBIT B
6.0 NUTRIENT REMOVAL
6.1 NUTRIENT REMOVAL TECHNOLOGIES
Wastewater treatment plants in Texas will eventually be required to remove nutrients (phosphorus
and nitrogen). Carters Creek, which CCWWTP discharges into, is on the TCEQ Draft 2010 303d
list for bacteria, nitrogen, orthophosphorus, and total phosphorus. Lick Creek has not been listed.
As of the writing of this TM, nutrient removal requirements have not been established by TCEQ.
Nutrient removal processes may be classified by three "levels" of capability as summarized in
Table 27.
Table 27: Nutrient Removal Treatment Levels
Nitrogen Total Level (TN) Phosphorus Comments
mg/L
' Achievable with conventional nutrient removal technologies.
1 8 1 Chemical addition or filtration is typically not required.
2 4 0.1 Enhanced removal requires tertiary treatment and chemical
addition to achieve low concentrations.
3 3 0.03 Requires state-of-the-art technology and
enhanced/optimized, treatment operation.
Level 1 represents the capability of conventional municipal nutrient removal processes, such as
modified secondary treatment. An example is shown on Figure 20. In lieu of the anaerobic zone,
chemical addition could be used to remove phosphorus.
ANR AX AER SCL
RAS
ANR= Anaerobic, AX = Anoxic, AER = Aerobic, SCL = Secondary Clarifier, RAS = Return Activated Sludge
Figure 20: Conventional Municipal Nutrient Removal (Level 1)
e 48
Pag
1COLLEL:E $fAl1(1!:
J lz,n efeA. R.YnnA 4.tl,~
DR
EXHIBIT B
Level 2 represents enhanced nutrient removal. The enhancements include a menu of potential
upgrades including more sequenced biological treatment, the use of chemicals to stimulate more
nitrogen and phosphorus removal and filtration to remove more solids and the nutrients associated
with those solids. Level 2 may necessitate the addition of primary clarifiers and partial removal of
phosphorus in the primary clarifier. Figure 21 shows a schematic considered appropriate for Level
2 nutrient removal.
MLR
PCL ANR AX AER AX AER SCL FILTRATION
•RAS
PCL= Primary Clarifier, MLR = Mixed Liquor Return
Figure 21: Enhanced Nutrient Removal Process (Level 2)
Chemicals are added to the primary clarifier to reduce phosphorus, while relying on the biological
phosphorus removal to minimize chemical use. Chemicals are also added prior to filtration to
reduce phosphorus concentrations further. The biological nitrogen removal process is enhanced
by adding large mixed liquor recycle flows to return more nitrate to the anoxic zone. The return
activated sludge from the secondary clarifier is returned to the anoxic zone and the anoxic zone
content is the source of return sludge to the anaerobic zone, thus assuring truly anaerobic
conditions to optimize the biological removal of phosphorus. The aerobic zone will have significant
concentrations of nitrate, requiring a second anoxic zone. The oxygen demand in the second
anoxic zone will be low requiring an external source of carbon (e.g., methanol, ethanol) to
stimulate removal of nitrate. A final aerobic zone is provided to remove residual supplemental
carbon.
Nitrification reduces alkalinity. Denitrification restores alkalinity, but only about half of the amount
lost during nitrification. In plants with low raw wastewater alkalinity, additional alkalinity may be
required to avoid low pH. Supplemental alkalinity is not expected to be required at the College
Station plants.
Page 49
C~J ~'of(XR-LECE$7A11(W
F dk- fA, A." V.Ug
DR
EXHIBIT B
Membrane bioreactors are an alternative to effluent filtration. Submerged membranes replace the
need for secondary clarifiers and effluent filters. Figure 22 shows a schematic of the process
using submerged membranes.
MLR
PCL ANR AX AER AX SUBMERGED
MEMBRANE
RAS
CHEMICAL CHEMICAL
Figure 22: Enhanced Nutrient Removal Process with Submerged Membranes (Level 2)
Level 3 represents the maximum capability short of exotic treatment technologies (e.g., Reverse
Osmosis, Electro Dialysis). Level 3 process configurations typically contain the following features:
■ Multiple barriers for each nutrient to be removed.
■ Elimination of recycle stream nutrients (e.g., from solids treatment).
■ Extremely efficient solids separation (typically microfiltration, two stage media filtration, or
tertiary clarifier and filtration, etc).
■ An external source of readily biodegradable organics is often required. This can be
provided by chemical addition (methanol, acetic acid, etc.) or by providing a sludge
fermenter to produce organics on site from the primary treatment solids.
■ Minimize fluctuations in influent flow and composition by flow equalization and/or
dampening peak flows in the collection system.
■ Avoid industrial discharges that impact performance.
■ Chemical feed (supplemental carbon source) and metal salts for phosphorus removal.
® Page 50
C[LLLFl:E STAII(L!:
- ✓v Lun.fdv Arwnl. L:Ik~
EXHIBIT B
■ Instrumentation and control to provide automation of critical process functions such as
aeration control, chemical feed, flow pacing, etc. On-line instrumentation required to
monitor process performance.
Biological nitrogen removal technologies do not remove all the organic nitrogen and even produce
some dissolved organic nitrogen byproducts. Consequently, the effluent from these processes still
contains dissolved organic nitrogen that is not susceptible to degradation in biological wastewater
treatment (nor a readily available nutrient source in nature).
All phosphorus removal occurs by converting the soluble phosphorus to a particulate form
(biomass or chemical) and then separating the particles from the liquid. In order to achieve very
low phosphorus concentrations, essentially all particles must be removed, requiring very efficient
solids separation.
Based on recent Texas regulations, it is anticipated that the most likely nutrient limitations will be
less restrictive than Level 1. Therefore, further discussion on the needs to meet nutrient
limitations will be restricted to Level 1 Nutrient Removal.
6.2 FACILITY REQUIREMENTS
It is typically the case to increase the sludge age in order to operate nutrient removal systems.
Increasing the sludge age decreases the volatile fraction in the waste activated sludge, resulting in
less volatile suspended solids (VSS) in the sludge. During digestion (aerobic or anaerobic),
ammonia (NH4) and orthophosphate (P04) will be created during VSS destruction. The facilities
required to achieve a limit of 8 mg/L nitrogen and 1 mg/L phosphorus removal at each wastewater
treatment plant are described below.
6.2.1 Carters Creek WWTP - Nitrogen Removal
A portion of the nitrified MLSS will need to be denitrified. The most common method used is to
construct an anoxic zone either within the existing aeration basin or preceding the aeration basin.
The existing aeration basins are sized appropriately to achieve full nitrification for the 9.5 mgd
rated capacity of the aeration basins; therefore, separate anoxic basins will be required. Each train
would be modified by constructing a 0.23 mg anoxic basin preceding each of the 4 aeration
basins. Two 10 hp mixers will be required for each anoxic basin. A recycle pump that returns
Page 51
CI11.OF COLLFL:F $TA"FI(L!:
A.,Imrm y rh A.,..nh Li14
HDR
EXHIBIT B
nitrified MLSS from the end of the aeration basin to the anoxic basin will be provided. The anoxic
basins will be covered and the exhaust gas treated to control odors.
6.2.2 Carters Creek WWTP - Phosphorus Removal
Two options are available for phosphorus removal: addition of chemicals to precipitate the
phosphorus, or biological phosphorus removal. Chemical precipitation is more common when
primary clarifiers are available. Since the College Station WWTPs do not have primary clarifiers,
biological phosphorus removal is more appropriate. Biological phosphorus removal is
accomplished by subjecting the bacteria to an anaerobic zone causing the bacteria to release
phosphorus and subsequently take up excess phosphorus when exposed to aerobic environment.
A key factor in biological phosphorus removal is the concentration of volatile fatty acids (VFA) in
the waste stream. Without more information on the VFA concentration, it is assumed necessary to
stimulate VFA formation by constructing a longer detention anaerobic basin - of approximately 1.5
hours. Separate anaerobic basins will be required preceding each anoxic-aerobic aeration basin.
Each train will require a 0.2 mg anaerobic basin with two 7.5 hp mixers. The anaerobic basins will
be covered and the exhaust gas treated to control odors
6.2.3 Lick Creek WWTP - Nitrogen Removal
The existing aeration basins are sized appropriately to achieve full nitrification for the 2.0 mgd
rated capacity of the aeration basins. Separate anoxic basins will be required. Both trains would
be modified by constructing a 60,000 gallon anoxic basin preceding each aeration basins. Two 2.5
hp mixers will be required for each anoxic basin. A recycle pump that returns nitrified MLSS from
the end of the aeration basin to the anoxic basin will be provided. The anoxic basins will be
covered and the exhaust gas treated to control odors.
6.2.4 Lick Creek WWTP - Phosphorus Removal
Separate anaerobic basins will be required preceding each anoxic-aerobic aeration basin for
phosphorus removal. Both trains will require a 60,000 gallon anaerobic basin with two 2.5 hp
mixers. The anaerobic basins will be covered and the exhaust gas treated to control odors
6.3 RECOMMENDED MONITORING PARAMETERS
In anticipation of designing a nutrient removal process, a list of monitoring parameters is included
in Table 28. The table shows the typical measures used for influent or primary effluent samples
(i.e. feed to the biological treatment system), secondary process (activated sludge), and solids
streams. Solid streams include waste activated sludge and dewatering. Because Table 27 is
Page 52
~Cout'c:eSrnruin
dkmyd u,nuy
IER,
EXHIBIT B
comprehensive, the data needs are noted in terms of importance. A "1" indicates a very high
importance, while a "5" indicates a "nice to have but not necessary" importance. HDR
recommends the City monitor for those parameters given a "1" or "2", at a minimum.
Table 28: Recommended Monitoring Parameters
DESCRIPTION METHOD • RAW/PRIMARY SECONDARY SOLIDS
Organics
BOD5 5-day BOD 1 1 -
BODu Ultimate BOD 3 3 -
CBOD Carbonaceous BOD5 Inhibit nitrification 3 2 -
Sample filtered through
SBOD Soluble BOD5 0.45 um filter. Analyze 2 2 -
BOD5 of filtrate.
TCOD Total COD 1 1 -
Sample filtered through
sCOD Soluble COD 0.45 um filter. Analyze 2 1 -
COD of filtrate.
Coagulate sample to
TSCOD Truly soluble COD remove small particles and 3 3 -
filter through 0.45 um filter.
Analyze COD of filtrate.'
VFA Volatile fatty acids 2 5 -
RBCOD Readily biodegradable Lab measurement from 4 5 -
COD treatabilit studies.2
Take sample from effluent
CODinert Inert fraction of COD of activated sludge (well 1
oxidized, treated sample)
and measure soluble COD.
TSS Total suspended solids 1 1 -
VSS Volatile suspended solids 1 2 -
Nutrients
NH4 Ammonia 1 1 2
TKN Total K'eldahl Nitrogen 1 1 3
Sample filtered through
sTKN Soluble TKN 0.45 um filter. Analyze 2 2 2
TKN of filtrate.
N03 Nitrate Typically measure nitrate 5 1 5
plus nitrite
Soluble fraction. Method
P04 Orthophosphate does not usually require 1 1 3
filtration.
TP Total phosphorus 1 1 3
Sample filtered through
sTP Soluble total phosphorus 0.45 um filter. Analyze TP 3 3 3
of filtrate.
® Page 53
G~~oFCoiLec:r:STnrion
Jr 4mn y-rM 14w..h Lilk~
IDR
EXHIBIT B
Table 28: Recommended Monitoring Parameters
PARAMETER • METHOD COMMENT RAW/PRIMARY SECONDARY
Other Measures
Temp Temperature 3 1 3
DO Dissolved Oxygen 1 3
Alk Alkalinity 1 1 3
H 1 1 3
Follow Standard Methods for all analysis.
Notes:
1 Example, using zinc sulfate - Mamais et al., Water Research, 27, 195-197 (1993).
2 See Ekama et al. Water Science & Technology, 18 (6) 91-114 (1986); Kristensen et al. Water Science & Technology, 25 (6) 43-57
(1992); or Kappeler and Gujer, Water Science & Technology, 25 (6) 125-139 (1992).
3 Need measurements for COD and TSS to establish COD:TSS ratio
6.4 NUTRIENT REMOVAL COST ANALYSIS
The estimated capital costs for the Level 1 nutrient removal facilities (see Figure 20) are shown in
Table 29:
Table 29: Level 1 Nutrient Removal Cost Estimate
PROCESS Anaerobic Basins with mixers $920,000 $250,000
Anoxic Basins with mixers and recirc pump $1,260,000 $310,000
Piping $250,000 $80,000
Electrical and Instrumentation $760,000 $210,000
Odor Control (biofilter) $100,000 $60,000
Capital Subtotal $3,290,000 $721,000
General Conditions (25%) $822,500 $180,250
Contractor 0&P (15%) $493,500 $108,150
Subtotal $4,606,000 $1,009,400
Contingency (30%) $1,381,800 $302,820
Construction Total $5,987,800 $1,312,220
Page 54
CrzvoFCoueceSrnnnn
EXHIBIT B
7.0 CONCLUSIONS AND RECOMMENDATIONS
This report evaluated the following for both wastewater treatment plants:
■ Need for expansion by 2018 due to exceeding permitted capacity
■ Need for improvements to assure compliance with the recent TCEQ Chapter 217 rules
■ Need for expansion due to organic loading at the aeration basins
■ Potential improvements to implement future nutrient removal
■ Recommended solids handling strategies for future consideration
The findings for each are summarized below:
7.1 NEED FOR CAPACITY EXPANSION BY 2018
It is anticipated that neither wastewater treatment plant will exceed their current permitted
capacities by 2018.
7.2 NEED FOR IMPROVEMENTS FOR TCEQ CHAPTER 217 COMPLIANCE
In comparing the existing facilities to the TCEQ Chapter 217 regulations that were issued in 2009,
most of the facilities are in compliance with the new design standards. The exceptions are listed
as follows:
■ The headworks facility at Carters Creek WWTP must have a bypass channel around the
screens.
■ When considering the secondary and final clarifiers at Carters Creek WWTP as individual
tanks:
• Secondary clarifier 2A does not meet the maximum overflow rate and the minimum
detention time requirements
• Secondary clarifiers 4A and 5A do not meet the maximum overflow rate
requirements
• Secondary clarifier 3A, and final clarifiers 213, 313, 4B and 513 are in compliance
Page 55
CrtvoFCcxtFt:FSrnricLn
dv km efA. ILv+..lL.11.,
lu~ (*O
EXHIBIT B
• However, the secondary and final clarifiers are operated in series, which is
unusual. When considered in series, the maximum overflow rate and minimum
detention time are both met for all clarifiers. It is recommended to request a
variance from TCEQ as long as the units are operated in series to ensure
compliance.
■ The gravity thickener at Carters Creek WWTP currently is used as a storage tank. If the
gravity thickening process is resumed, provision for adding dilution water to obtain the
overflow rate required by Chapter 217 will be required.
7.3 NEED FOR EXPANSION DUE TO ORGANIC LOADING
In reviewing organic loading records, the aeration basins at each facility are currently sized
appropriately for the permitted plant flow of 9.5 MGD for Carters Creek WWTP and 2.0 MGD for
Lick Creek WWTP. However, the current configuration does not support the addition of biological
nutrient removal within the existing basins at either facility (See Section 7.4).
While the aeration basins are sized appropriately for permitted plant flow, the ATAD system at
Carters Creek WWTP is shown to exceed the organic loading for approximately 10% of operation
time. Therefore, there is a need to install a 4th ATAD unit at the plant to alleviate the overloading
condition.
The waste activated sludge at Lick Creek WWTP is stored in an aerated sludge holding tank prior
to dewatering at the centrifuge. As influent flow to the plant is increased with future growth of the
City, the retention time in the sludge holding tank could diminish to approximately 3 days. With no
standby centrifuge, 3 days does not provide flexibility should the centrifuge be out of service. It is
recommended that additional storage volume be provided. Extra storage volume can readily be
added by modifying the existing storage tank to utilize all available volume.
7.4 POTENTIAL IMPROVEMENTS TO IMPLEMENT FUTURE NUTRIENT REMOVAL
While nutrient removal requirements have not yet been established by TCEQ at the time of this
report, it is anticipated that nutrient removal (nitrogen and phosphorus) will be included within the
next one or two permit cycles. Biological nutrient removal is recommended for both facilities.
Capital costs, as summarized in Table 29, were estimated assuming a conventional municipal
nutrient removal process that can achieve 8 mg/L total nitrogen and 1 mg/L total phosphorus.
- a Page 56
~(an'oFC;outt:r:Srnru~n
j~~ d km.ey~R.,N~~:~y
EXHIBIT B
s' - •
7.5 RECOMMENDED SOLIDS HANDLING STRATEGIES FOR FUTURE CONSIDERATION
The City uses the ATAD system at Carters Creek WWTP to produce Class A biosolids which
allows flexibility in disposal options. The City desires to maintain Class A production into the
future. The four future sludge handling processes chosen by the City to be evaluated are:
■ Aerobic Digestion (ATAD)
■ Thermophilic Anaerobic Digestion
■ Composting
■ Incineration
There are currently no regulatory drivers that would require the City to change how the sludge is
currently digested aerobically in the ATAD system. Beyond 2018; however, both wastewater
plants will need to expand to accommodate higher influent flow and organic loading from future
growth. It is also anticipated that within the next one or two permit cycles, nutrient removal will be
have to be added to the facilities by constructing new infrastructure.
With each of the strategies listed above, HDR considered the advantages and disadvantages of
solids handling facility locations to include:
■ Separate facilities at each wastewater plant
■ All facilities at Carters Creek WWTP
■ All facilities at Lick Creek WWTP
■ All facilities at a new centralized facility
Composting and incineration are not recommended for further consideration. A composting
operation requires a large footprint, reducing the amount of area necessary for future plant
expansion and addition of nutrient removal processes. Odors are also generated and to prevent
release, the compost operation would need to be enclosed. Incineration is a significant capital
IDI ♦ ® Page 57
Cl7 Qi oeCnueca;Srnnun
EXHIBIT B
cost to construct, additional monitoring is required and achieving public acceptance could be
challenging.
ATAD and thermophilic anaerobic digestion each offer distinct advantages to the City and should
be evaluated further in a more detailed study. The ATAD system is currently in use now, and can
be expanded to accommodate an increase in solids from future flows taking advantage of the
infrastructure already in place. While the ATAD system recovers heat to maintain required sludge
temperature, no other "green" benefits are realized, such as those achieved with an anaerobic
digestion system. An ATAD system can be provided at both facilities, or consolidated at Carters
Creek WWTP with sludge hauled or pumped from Lick Creek WWTP to the ATAD system for
processing.
Thermophilic anaerobic digestion is a "waste to energy" system. The process produces methane
gas which can be recovered and used as a fuel source for a boiler or cogeneration facility. The
heat from the cogeneration system is recovered to maintain the required sludge temperature. In
order for the City to benefit from cost savings, the digestion system needs to be consolidated at
one location and the digester feed supplemented with brown grease. Anaerobic digestion would
also allow the City to claim carbon credits should they become available in the future.
7.6 SUMMARY OF ESTIMATED COSTS FOR RECOMMENDED IMPROVEMENTS
The estimated capital costs are summarized in Table 30:
® Page 58
IDR d. I-)"& k-.). Vku,
EXHIBIT B
4;e
Table 30: Summary of Estimated Capital Costs
(process Separate Facilitie Combine Facilities
solids (process solids single .
PROCESS NEAR-TERM PROJECTS
411 ATAD $2,300,000 N/A $2,300,000 N/A N/A
Increase WAS
Storage at Lick N/A $350,000 $350,000 N/A N/A
Creek -FUTURE PROJECTS
ATAD' $5,830,0002 $11,700,000 $17,530,000 $26,250,000 $38,525,000
Thermophilic
Anaerobic
Digestion with N/A N/A N/A $36,500,000 $36,400,000
Grease and
Cogeneration'
Nutrient Removal $6,000,000 $1,310,000 $7,310,000 N/A N/A
'City would construct either ATAD or Anaerobic Digestion, not both.
2This cost assumes that the 4th ATAD has already been constructed.
Im ♦ ® Page 59
C~7. Cr opCou.xa:Sr~rion
ems, y ~ w~,~u ivy
EXHIBIT B
APPENDIX A
CCWWTP Process Evaluation Data
Appendix A
oc CALIECE S I ION
dv A.art q-J. Rn.n,l, Ialh
. \ I
Q
x
c
m
n
_ Q
N
N
C
3
0
a, 0 3 3
G ti
a o x y
t o ° a oa ~
0
> C N ~ L l7
~ 3 N N
U o c v
~ N C C t
C
C w °i \ ~ .C N
~ o a
I W c0 H -
~ ~ u y a s y
E E E E h n
~ W a c 'c c
c E C °c' E °i E c c a
cr cr ~ a
a u ~a n u ~ ~ ~ ~ m
00 v
a 0 00 cc a a 0 -4 o a o a a a C
O O a a ° a a a a o w o
N' E E v v v~ v u a .°i u v N ~
d o c w a o `a ° a o a o 0 o v
m u m m V u m v u U V m
M O)
~ M 'ti 1° M? N O° O
N ~ m O vl ~ N~ O H V1 O~~
O O M M
O
LL -
C
O
M m
m - Lo ano u', o m v ,y O e rn
O) Cj m O v1 O N Im
O O °
W y
2 0
X o
W d 4] O N Lq t0 V1 O o
r - O N m ~ V N '7 O V
3$ I O O M
U
U
47 O fO
N N N Qal N .a W tn0 r QI f0 N r Q O N 0 1° N n V Q
M 1° 7 M O t0 M O .ti M N
co
O O N
I
N N_ ~
❑ ❑ ❑ !2 m ❑ ❑ a
U' C7 U' 6 C9 0 0 o U` (D w n n C7 m 2 2 a~ E r L m m c t r
3 3
0 0
LL LL
y
N Ql
❑ ❑
N a
C C
C2 m
J
3 O O
LL a It V N
a 3 W o 0 c
m. c a ~ 3 L L v y o U ~ U v
N L ~ F H A N ~ N ~ ~ L
d N U ~ N C Ul d N Ul 'L N d t0 d Q' H
n E ° ° 'R a
N ? h > > C C ~6 C d w
a OD c u C m o E m w N m u, N U m m E E E>
o m m a C ob t0 0. n H K o F- F H ° o
m p~ ° E c 0 v u 'O V i m ,n Q m> c c c cc
m e uo. y to U p[ Q w° c ~0 U vi v= o o o 0 o v a
3
O 0; d w
m o= 0 o m m d d m 0 a>> m m m o
N LL U o°
C,-La- a Vf z W U' z c7 ❑ Q z co m== Le) O a of a Z O m 0 0 0 U❑ 0❑ m o
Q
x
v
c
d
n
Q
0
~v
rz
c
c
_ n o ~ o
N N O n ~
C O ~ p
ti e o rv
<r
a cc w a
0o h o ~ l7
E c n, v c:
~ _ j C; b e l
i
L
r U Q c a
0 0
a a o v v ~ ~ ~ a a
Is z
cc cc 'Q o b 0 0 O~ a o G °tl O ,Cti
C C ° a a o b b b d 'J' .p a o _ > a a c b c
O O ° o ° ° o° o o a °i o a c a o° ° o E E
E E v ~ 'u v cam, ~ co, E E~ E_ ~ e E~ N i'; u E S E
0 o a o o a o UU o° 0 fi 0 ° ~4 'o~ p _ o o
fi fi m U U f0 U fi Q 't a fi Q U U ~i U fi
x-?
cl o o a m o v rn m
O N ° an0 r~it N o r t0
3
0
LL
c
0
c o °o a ° o 02 m
co
m of N m N M N r r 6
M > FI r O
W Li
VI
= y
W O`
a m
a c o m m o 0 o rn
N m N m w O V N 1l7 N a
O
U
U
N n O C O
C 0 0 1[I 1~ V1 ° p 0 N e 1n V a V N O a a p
F m N m rtl N O N (D M M H N 0 f") C) N
m
N w N N
o a c E E
U' C7 +C v v D w a N a -O w v `f0
m m~~ L L~ a n a
9f
6
OC 10
o e
10
m 3i m ~ ~ i E 'u
L) 0 C)
c LL
v F C7 u W t0 u
m m u? atii m C C of t P c d E° ° u U m
0 1--
ai m 'm n e0 @ Ym E o c E N o m m '
_a m
Y C `m m 0; ((s''~~ E E c N ` 3 -0 m o o O a D 1
d N U Q la > H F CD O U F, U U H b D ° fp ° N U D a
> c c A o o U` v o C7 0 d D n K a r
m n a m
U N d 3 3 cl o c)
V C o w
y `y `m m Y 5 c m d m N Y m c p,,. s
` d o o
.N
fG '6 a rC rC I c c > m .p a cc E
C v+ m V O E m w a E'.. o a ° a E o > u m a .N
a7 y m ❑ Q>> m u o x o r- 0 3 0 0 o m o 'x d
'u5
ii ❑ a if CL z 'o m 0 0 U UI c U l7 z LL cn w x co w cn oe a z a a U H 2 wa:
Q
x
a
d
o.
Q
v
c
°
c,
G Q
G p
E v ~ a °
~ y Q n 4
V O p E a it E
O _
c a, v a ~ 3 c
a a o a` v ° o~ E o
a` a a° a~ o o c- n a~ ~
3 o v m m ~ 3 ~ dG v a Q -a°
a V G v = ° G Gi G G G G a+ G i 6i N G G G
U ~ J U U ~ N J 3 ~ N O ? ~ U > ~ Di 6i ~ > >
° a J O y p O> O O J Q O> O ? O ° O O O O O
a~ a c a c c a> a a a a a s c a a>> a a a
o° c E c E E C a °i o a° c o o E° o °1 °i c c c
- o o Q o° o o h a` c o- `c o o ° o° ~ o 0 0
~L m U ~L U ~l ~L ~ U Q U l.; U V U L U U Q Q U U U
3
°
LL
M O
W O
A
M >
W N
= y
x W o
a a
L)
U
rl O h ~ V O) _ O
a M N m O e N ON'. N O N 0 0° O ffOO O C
O O 1t'1 co co Ip r.j nj O O V O r V N (o ui O O
-zr 'T V O r n N V1 O ° M N' N O N m O1 m O
N N
C7
m m m m H D v m E -0 3O v
a a v rn m a n a~ a c t O
I
m
w
c
a
u
`o
W W J
w O
tLa OO O I k
y C N
O E E y V +
w •L v d m
d w v um
m a1 o H c m v v tko
c M N 3 E v E v v m N a' m
o o m e E v: > m o v c m
c
c c c d w v w m m `m K _ e
m~ ~ v m E N ~ ° o
v ~ per, v v m v o ,i, .X o .o ~ m ~n /P1/
c o OD y o to v m H C v U> 0 0
D o y U ° w m v U m
0 > o o mo C e0
c '0 0 Q
o to m o > - w o E Y g? N v c m E m a 3
U o d) a? r> w v o C `m m c E= E o o o °
w a:
3 3 -o r
Q -o m m m r' o o m a I!, c 3 E v m 3 ` o o w r cn LL
E
0 0 0 0 v o m 3 o Fa- ratio'' o d a o m w o r r •x 2 U w m o u7
Q n r>> o z 0 n r Q v>> n! u d U w u
Q
X
a
C
01
a
Q
a a
Ua a°
a `v
v L v
~ U U ~
c ,ate o
i v a a v
a a
_a c E E a
0 0
U U ~i LL U
3
O
LL
O
m ~
7
m N
= m
X u0
W a`
CL
f3-
3
U
U
m ~
C;j N Cl)
amy!
a
r
v
N 3 v ~
'a o o a
LL N h ~ N
Z m
O N ~ I-UMM `O
W U
EXHIBIT B
M
APPENDIX B
LCWWTP Process Evaluation Data
Appendix B
LI OF COLLFGI'. $TAI Il)1
WM
A.
co
X
GI
d
Q
j
I
N
3
o
d Y
a a
~ w z ~ v
o a s
I u o
0 0
I ~ a .c a 3
I w c c
a E o 0
w ~ Y
~ ~ c c
a E E ~
X a` a,
~ c c c
o 0
wo 3 ~
Q a s V a u n, a:
- 3 ~ ~ ni of v = v ai ci ' ' m
t
v ~ a s is a~ a -a a a a 'a
a ° _O a a ° _a a b Q Q a
v a a a u a a ~ ~ E E
o c
m m U U U m U U U~ ii U
C
O
_ co
m c o N g a m
W co O M N N rV tD
m H ~ ~ O
N
u fO o
2 as
W j I N O m N tD e- I~ N ~ N mI a- f") ~ t00 N ~O M N N ON l0
>o r o
J
I U 0 O U C7 D 0 N~ C.4 >
C~ N N v v
U 0
U U' 00 C7 U` a a L t
O) OI
0
o
N
i - Y
m C
m cc
E ° o N c
d
'o y 3 0
:c m 3 0 :E 0 y
m l _ ma 3 LL o LL v 6
c o z 0 u ° 0 O L O~
LL N "a
j h v FE n a`~ m a`~ N > a V5 i
0 .2
m m o V m O0 m m
a l OA T O U
m m co
N m °i a 'w, U m A 0 3 E E> Q
3 C a m U C fC Q1 3 iJf Q> c c°
°
O j m `5 .6 V O° n E
° 3 v 0 d o
NILL,',,~( d U U > E 'a+ m C C m `m m o o w `m
m d `o 'O o E` a_ m 0 m o, u a° m c o
r IE
O j a a0i U o `m y- o m d o mO d aJ > m m>>> m° ai v o o
a
L A-1 I l7' z Q z m I of O¢ o z o rn 0 0 v U 0 o u) _qq
of d ~n z _
m
X
'O
C
m
d
d
Q
i
I
I
i
I
i
I
I
I
6
b
I ~
~ 'Oa y
E
Q ~ N
a o Q
v c v c; a m v v v
I_ _ 3 ; p Q ib Q 6 -Q 6 6 O C 6 6
Q 3 Q O _
b y v v ~ v v b b ~ v v c_ v
O Q O O 6 Ei Q _Q _6 _Q C Q
° U N U U U G
Q U U V ~i V U Q Q U V U U_ _ _ U
C _
O =
7
m
LLJ
W N
M U
W ~
S a O
X >F N fO 10 t0 N O e t0 GD m
W > C p V7 1tr') N O O N o O 1~ O 0 0 O O
> O N 10 N O N O C 10 1~ M M
U H 'OC O R [h N O~ m N C
J
a m m a ❑ O
n a - H vO a E a F v a s C7 C7
I
I
I ~
aJ
w
C
a1
u
C 4! r
!6 T m m
F" al o d
Cai 00 ao
C~ ~ N ~ u m t
0 O M m
L) ba
j. E m E m N a! v c~ N m s i
2 to
01
? o a m a d R c U w p LL m g d
ut l v E d e0 y o e0 V L p m
rn 00 C rn c a w a m a ❑ m t vi P-' ami
0 -25
E -6 -5 m L N E_ 3 O O N J m` O C (J7 lL C U U O m m
d o m o d ai o m N Z U W 2 o to a1 al o m m
Q> w V 13 (L L) 0 LL w u u z v U _
EXHIBIT B
CITY OF COLLEGE STATION
,w» era
46
-w
R
all
I Oo-
.
i
■ 1 ! te--r,
M -
'r
Y!E
r.r
S ^ r 4~ ~ iS•' I ~ ' ~ ! ~1
• fir'.
City of College R
Station Evaluation
TM-2: Capacity Analysis
HDR Engineering,
May 2011
ONE COMPANY MtiqS(dwioFts'-
May 25, 2011
Mr. Stephen Maldonado, Jr.
City of College Station
Water Services Department
PO Box 9960
College Station, TX 77842
Re: Final Collection Systems Evaluation: TM2- Capacity Analysis
HDR Project No. 130642
Dear Stephen:
We are pleased to provide you with the final version of the Collection Systems Evaluation: TM2 - Capacity
Analysis for the Task.5.0: Collection Systems Evaluation Project. We sincerely appreciate the participation and
assistance that we received from you and your staff during development of this TM.
This TM documents the evaluation of your existing collection and lift station systems and the future collection
and lift station system needs The report includes proposed projects to increase system capacity, and all work is
summarized in a capital improvements plan. The model files are provided under a separate cover.
Should you or your staff have questions regarding this report, please do not hesitate to contact us.
Sincerely,
HDR ENGINEERING, INC.
Sharon M. Miller, P.E.
Project Manager
OF Tf
SHARIjN ,M :NjI1~lER i
J02799. i
d~ II,~FFS
HOR Engineering, Inc. 17111 Preston Road Phone: (972)960-4400
Suite 200 Fax: (972) 960 4471
Dallas, TX 75248-1232 vmv hdrinc corn
EXHIBIT B
Table of Contents
1.0 PURPOSE AND SCOPE 1
2.0 EXISTING SYSTEM DESCRIPTION 1
2.1 General ................................................................................................................1
2.2 Gravity-Flow Conduits 2
2.2.1 Classification ................................................................................................2
2.2.2 Characteristics 2
2.2.3 Pipe Age 6
2.2.4 Service Areas 7
2.3 Manholes ................................................................................................................7
2.4 Existing Lift Stations and Force Mains 9
2.4.1 Locations ......................................................................................................9
2.4.2 Descriptions 9
2.5 Condition of System ..............................................................................................11
3.0 HYDRAULIC MODELING 13
3.1 Purpose ..............................................................................................................13
3.2 Physical Development ...........................................................................................13
3.3 Peaking Factor 14
3.4 Wastewater Flow Loading 15
3.5 Sanitary Flow .........................................................................................................17
3.5.1 Municipal Wastewater ..............................................................................18
3.5.2 Groundwater Infiltration (GWI) .................................................................18
3.5.3 Rainfall-Dependent Infiltration/Inflow (RDII) 21
3.6 Calibration 21
3.6.1 Dry Weather Flows 21
3.6.2 Wet Weather Flows 28
3.6.3 Wet Weather Analysis Hydrograph ...........................................................31
3.7 Future System Layout & Service Area Configurations 33
3.8 Planning area 33
3.9 Model Scenarios 35
4.0 SYSTEM CAPACITY ANALYSIS 36
4.1 System Analysis Criteria 36
4.1.1 Capacity 36
4.1.2 Velocity 36
4.1.3 Freeboard Depth in Manhole 36
4.1.4 On-site Wastewater Treatment 36
4.2 Overall System Capacity 37
4.3 Peak Dry Weather Capacity - Existing Sewered System 37
4.3.1 Pipeline Rehabilitation & Replacement Projects .......................................37
4.3.2 Existing Sewered System -Year 2010 40
4.3.3 Existing Sewered System with Future Growth -Year 2030 44
Page Ji
G'IYOFCgl1EGE$'1AI'ION
d.Gem ~fdr AnvxM Y
IDR
EXHIBIT B
4.3.4 Existing Sewered System with Future Growth - Build-Out 49
4.4 Project Identification 52
4.4.1 Problem Identification ...............................................................................52
4.4.2 Problem Characterization -Type A Problem Locations 53
4.4.3 Bee Creek Line 55
4.4.4 Southwood Valley Line 60
4.4.5 Northeast Trunk Line 62
4.4.6 Lick Creek Line 65
4.4.7 CC4 Line 67
4.4.8 CC6 Line 69
4.5 Improvements to Existing Sewered System -Type B Projects 70
4.6 Future Trunk Line Extensions ................................................................................73
4.7 Lift Station Capacity 77
4.7.1 Existing Lift Stations 77
4.7.2 LC5 and LC7 Lines 79
4.7.3 Future Lift Stations 80
5.0 COLLECTION SYSTEM RECOMMENDATIONS 82
5.1 Summary ..............................................................................................................82
5.2 Planning Level Cost Estimate - Sewers 82
5.3 Planning level cost estimate - lift stations 84
5.4 Planning Level Cost Estimate - City identified rehabilitation projects 85
5.5 Planning Level Cost Estimate - Type B Projects 86
6.0 CAPITAL IMPROVEMENTS PLAN SUMMARY 88
6.1 City Identified Rehabilitation Projects 88
6.2 Bee Creek Line Phase 1 and Phase 2 89
6.3 CC6 89
6.4 Lick Creek 89
6.5 NE Trunk Phase 1 and 2 89
6.6 LC5 and LC7 Lines 89
6.7 Southwood Valley 90
6.8 CC4 90
6.9 Miscellaneous Projects (Type B) 90
6.10 Existing Lift Stations - Increasing Capacity 90
6.11 Future Lift Stations 90
6.12 Future Extensions (Gravity and Force Main) 91
^ Page iii
j` CnvotCoutce5'rxnor~ h-1, V"y
EXHIBIT B
List of Figures
FIGURE 1: COLLECTION SYSTEM 3
FIGURE 2: PIPE MATERIAL SUMMARY 5
FIGURE 3: PIPE AGE 7
FIGURE 4: SEWER SHED AND SUB-BASIN BOUNDARIES 8
FIGURE 5: LIFT STATION LOCATIONS AND SERVICE AREAS 12
FIGURE 6: FUTURE GROWTH AREAS NOT INCLUDED IN MODEL 16
FIGURE 7: DIURNAL FLOW PATTERN 19
FIGURE 8: SEWER SHED SUB-BASIN DRAINAGE SCHEMATIC 22
FIGURE 9: SAMPLE WET WEATHER CALIBRATION - CC5 SUB-BASIN 29
FIGURE 10: WET WEATHER EVENT HYDROGRAPHS 32
FIGURE 11: FUTURE SERVICE AREAS 34
FIGURE 12: REHABILITATION AND REPLACEMENT PROJECTS 39
FIGURE 13: EXISTING SEWER SYSTEM -YEAR 2010 CAPACITIES 41
FIGURE 14: EXISTING SEWER SYSTEM YEAR 2030 CAPACITIES 48
FIGURE 15: EXISTING SEWER SYSTEM BUILD-OUT CAPACITIES 51
FIGURE 16: TYPE A REPLACEMENT PROJECTS 54
FIGURE 17: BEE CREEK LINE LOCATION 55
FIGURE 18: SOUTHWOOD VALLEY LINE LOCATION 60
FIGURE 19: NE TRUNK LINE PHASE 1 AND PHASE 2 LOCATION 62
FIGURE 20: LICK CREEK LINE LOCATION 65
FIGURE 21: CC4 LINE LOCATION 67
FIGURE 22: CC6 PROJECT LOCATION 69
FIGURE 23: TYPE B PROJECT LOCATIONS 71
FIGURE 24: PROPOSED FUTURE EXTENSIONS 75
FIGURE 25: LC5 and LC7 PROJECT LOCATIONS 79
FIGURE 26: FUTURE LIFT STATIONS 81
List of Tables
TABLE 1: PIPELINE CHARACTERISTICS 4
TABLE 2: PIPELINE CLASSIFICATION SUMMARY 6
TABLE 3: EXISTING SERVICE AREA SUMMARY 7
TABLE 5: CALCULATED PEAKING FACTORS PER EXISTING SEWERED SUB-BASIN AREAS 14
TABLE 6: OBSERVED MINIMUM FLOWS 20
TABLE 7: DRY WEATHER FLOWS - SUB-BASIN SUMMARY FROM FLOW MONITORING DATA....... 23
TABLE 8: DRY WEATHER FLOWS - UNCALIBRATED MODEL AND FLOW MONITORING
COMPARISON 24
TABLE 9: DRY WEATHER FLOWS - CALIBRATED MODEL AND FLOW MONITORING COMPARISON 26
TABLE 10: RDII HYDROGRAPH PARAMETERS 30
TABLE 11: WET WEATHER FLOWS 31
`*oI Page viii
1~--,L) Cin'oFCoutcr.Sixno
d. [wn sfd r k-A V.&Y
EXHIBIT B
TABLE 12: FUTURE SERVICE AREA SUMMARY 33
TABLE 13: SUMMARY OF SYSTEM CAPACITY 37
TABLE 14: RANKING OF CITY IDENTIFIED REHABILITATION PROJECTS 38
TABLE 15: EXISTING PIPES AT OR EXCEEDING 80% CAPACITY (YEAR 2010) 40
TABLE 16: EXISTING PIPES AT 60 TO 79% CAPACITY (YEAR 2010) 42
TABLE 17: EXISTING PIPES AT OR ABOVE 80% CAPACITY (YEAR 2030) 44
TABLE 18: EXISTING PIPES AT OR ABVOE 80% CAPACITY (BUILD-OUT) 49
TABLE 19: BEE CREEK LINE PHASE 1 CAPACITIES 56
TABLE 20: BEE CREEK LINE PHASE 2 CAPACITIES 59
TABLE 21: SOUTHWOOD VALLEY LINE CAPACITIES 61
TABLE 22: NE TRUNK LINE PHASE 1 CAPACITIES 63
TABLE 23: NE TRUNK LINE PHASE 2 CAPACITIES 64
TABLE 24: LICK CREEK LINE CAPACITIES 66
TABLE 25: CC4 LINE CAPACITIES 68
TABLE 26: CC6 LINE CAPACITIES 70
TABLE 27: TYPE B SEGMENTS CAPACITIES 72
TABLE 28: FUTURE TRUNK LINE EXTENSIONS 76
TABLE 29: EXISTING LIFT STATION CAPACITY 77
TABLE 30: LC5 AND LC7 LINE CAPACITIES 80
TABLE 31: FUTURE LIFT STATION CAPACITY 80
TABLE 32: COST ESTIMATE-SEWERS 83
TABLE 33: COST ESTIMATE - LIFT STATIONS 84
TABLE 34: PLANNING LEVEL COST ESTIMATE - CITY IDENTIFIED REHABILITATION PROJECTS 85
TABLE 35: COST ESTIMATE-TYPE B PROJECTS 86
List of Appendices
Appendix A: Scoring Matrix
Appendix B: Cost Sheets
Appendix C: Model Output Sheets
TT~ Page Div
11-lll G7y OF COUEGE$'I',AflON P
~ sb Mve.fdr A-/i Vil4,
EXHIBIT B
1.0 PURPOSE AND SCOPE
The Capacity Analysis Technical Memorandum (TM) has been prepared as part of the City of
College Station (City) Wastewater Collection System Evaluation project. Using the temporary
flow monitoring data collected from December 5, 2009 to February 8, 2010 (Temporary Flow
Monitoring TM, HDR, April 2010), an analysis of the wastewater collection system capacity
was performed. The purpose of this report is to summarize the model development,
calibration and capacity analysis of the existing and future systems. Specifically, the analysis
discussion identifies:
• The carrying capacity of existing interceptors given current and projected flows,
• Proposed interceptors,
• How the proposed interceptors affect the carrying capacity of the existing interceptors;
• System deficiencies in the existing system, and when the system is expanded for future
use
• The impact on the current and future interceptors from the existing lift stations
• Potential future lift station needs
• Proposed collection system improvements and planning level cost estimates
2.0 EXISTING SYSTEM DESCRIPTION
2.1 GENERAL
The wastewater collection system contains the following major components:
• 298 miles of gravity-flow pipelines
• 5,488 manholes
• 9 primary lift stations and 6.6 miles of associated force mains
In addition, there are some notable minor components within the collection system. A few
isolated areas utilize parallel relief lines to convey wastewater peak flows.
T UR I `I~ Page 11
j~j✓) Crrvc COILMESTMON
.w ,er wrt yid. x.,,a,A vty
EXHIBIT B
2.2 GRAVITY-FLOW CONDUITS
2.2.1 Classification
The collection system pipe network can be
subdivided into four distinct pipe types based on
level of service: interceptors, trunk lines, mains, and
laterals. Lateral sewers are typically the smallest
conduits and have the primary function of collecting
wastewater from one or more building services and
conveying it to a main line. Sewer mains transport
wastewater from one or more laterals to either trunk
lines or intercepting sewers. Mains and laterals are Typical sewer lateral and service
often grouped together and referred to as
'collectors'. Trunk sewers are large conduits that collect wastewater from one or more sewer
mains and discharge into an interceptor line. Interceptor sewers are typically the largest
conduits in a collection system and are utilized to convey wastewater to the treatment facility.
The connectivity of the various conduit types in the City's collection system can be seen in
Figure 1.
2.2.2 Characteristics
The primary attributes of gravity-flow conduits are size, material, and cross-sectional shape.
The City utilizes only round pipe throughout the collection system, so there is no variation in
the shape of the conduits. Pipe materials within the City's wastewater collection system
generally vary with age and size, with installation dates ranging from 1955 to 2009. Pipe
materials that have been reported throughout the system include polyvinyl chloride (PVC) pipe,
vitrified clay pipe (VCP), ductile iron pipe (DIP), reinforced concrete pipe (RCP), unreinforced
concrete (UCR) pipe, high-density polyethylene (HDPE), and cast iron pipe (CIP). A general
summary of the pipeline characteristics within the system, sorted by size and material, is given
in Table 1.
T r~ Page 12
N of COE LWE STAMN
i~j J)
11, f,&, Pun * W4,
y y ze W
H U_ C 2 a j
} r r J N r ~a L
U) cl) 49 70 CL
Z W o u) In c ~ 2 ff3!
o r o_ o -1 a z $$€s
p u a) L)
-0 a)
z ~
C (0 C N
W Z C Q n L)
Q (n H u o
J= W H U w
0u 0 y '
U J W 4(
u
x
ki
I
J
H
J
V
♦ 0E
zt y- SF
/ J
Wpb
m F
2S 1 E
e ~f
1 ~I N ♦ ie..
7 fv v
~
Psi
3
p69 vi ash`. ^ Vii i- ~Ir♦
pPS may/ i ~ < _ f ~ tl~o
r e rtr G a
IN w
rn . I~ v III I - r♦ r I
i / I~ v tI ( I C-
J.
1 `ti l 'D. IIII NI ' ~ ~nOI
/1^►f k
Z3~
EpPO
~p~Z~ °sa..
1/1 ~a
J~
EOH~9,
oa x33a~~3Naru ~
2
5
ONW'Ll%ll 501151N310tlHVN03dId ~001J ZP90E lIdVWONVIS00odV1V13S0M1NJ~ NOI1tl1S 303110 Z>90flNMA N31 WDNIM33NI-SVI'vo GcQ 3011'3113
E a
0 0
A
co 2
O O O O O N 2
m E
m
> v g v v a~> v g v v d a
m
J r
V <
N V r
m b
U a a a rt a a U a a a s C) a a a a a 0 a a mCC a a
> U o U U°> U o v U o c) U> U o v U°
U a> x= a> rc ° x a> x a>° x
UM)
w
w
H
~ N N M N1
r =
m w
2 Z
w ~ M
X J
W a M o ,n
a
w
J
a
c-I m O h ~O u',
~D O N O S f~D O O - - R O
O _ _ Lr;
M M
v a a a a a U a a a a a U a a a a a U a a a a a
> v v v > v v U > v v v > v v U°
cl~
C N ~ O
o M m l
cr!
~ N ]
a a a a a v a a a a a U a a a a a v a a n. a s
a > ° ° a > o of 5 ° v
x x x x
1 ,
m
EXHIBIT B
.i.
In the City's sanitary collection system, pipe sizes range from 6-inch to 48-inch diameter, with 6
and 8-inch diameter lines comprising 75% of the overall system as shown in the above table.
PVC and VCP are the most common pipe materials, as shown on Figure 2.
_
■ RCP • Unreinforced F: HDPE
Concrete Pipe 0.8% x_ Cast Iron
■ Ductile Iron 0.8/0 1 °
0.5 /o
5.4%
Vitrified Clay
PVC
34.8%
56.5%
FIGURE 2: PIPE MATERIAL SUMMARY
The pipelines can generally be grouped into the sewer classifications discussed above simply by
considering their size, but the precise distinctions between sewer types are not quite that clear-
cut. In the current City's collection system, most of the conduits that are 21-inch and larger could
be classified as interceptor sewers. Trunk lines in the system are typically in the range of 12-inch
to 21-inch. Sewer mains and laterals, which are often harder to distinguish between one another,
are generally 12-inch and smaller. There is certainly some overlap in sizes among the four
classifications, and this becomes more pronounced among the smaller conduits. Table 2
summarizes the collection system conduit sizes based on service classifications.
IM, ~Page 15
G'rvcuaiESeSTAIION
G
EXHIBIT B
TABLE 2: PIPELINE CLASSIFICATION SUMMARY
TOTAL
SERVICE CLASS PIPE DIAMETER (IN) LENGTH (FT) LENGTH(MI) % •
24 12,908
27 15,325
30 22,664
Interceptors 36 5,602 10.8 4
42 568
48 21
12 100,106
15 54,611
Trunk Lines 16 25,078 55.2 18
18 84,254
21 27,746
6* 786,992
Collectors g 393,972 237.1 78
(Mains and Laterals)
10 70,999
Note: Only lines 8-inch in diameter and larger have been included in the model.
2.2.3 Pipe Age
The collection system consists of pipes ranging from less than 1 year old to more than 50 years
old, as shown in Figure 3. The majority of the system piping, 71 is from 0 to 30 years old. At
least 24% of the system piping is older than 30 years. There is 5% of the system of unknown
age. For the last 30 years, piping has been installed at an average rate of 6.7 miles of pipe/year
resulting in an approximate average annual growth rate of 12% for the collection system.
Page 16
U'IY(KC()IJ}A:F.S7"All().ti
IArAnr.fdv Rmunb LhJ
EDR
EXHIBIT B
>50
41 to 50
L
`m 31 to 40
a
21 to 30
m
a
11 to 20
0 to 10
0 10 20 30 40 50 60 70 80
■ % OF SYSTEM* ■ LENGTH (MI)
`Note 5% of the pipe installs recorded in the City's GIS database did not have year installed listed.
FIGURE 3: PIPE AGE
2.2.4 Service Areas
The City's collection system conveys wastewater to either Carters Creek Wastewater Treatment
Plant (WWTP) or the Lick Creek WWTP. The two sewer sheds, or primary service areas, were
further subdivided into 18 sub-basins; nine for Carters Creek (CC) and nine for Lick Creek (LC).
The existing collection sub-basin boundaries are shown on Figure 4 and some pertinent
characteristics of each primary service area is shown in Table 3.
TABLE 3: EXISTING SERVICE AREA SUMMARY
=INTERCEPTORS COLLECTORS
AREA outing Load Area • Length • , M12 %
th % of Length
;CID
I- Total (F Total (FT) Total (FT) lie
C 12,911 20.2 68% 40,306 83% 206,405 77% 881,960 70%
LC 5,983 9.3 32% 8,412 17% 60,911 23% 369,129 30%
2.3 MANHOLES
There are approximately 5,488 manholes in the City's collection system. Most of the manholes
are constructed using precast reinforced concrete sections, but some older manholes are cast-in-
place concrete or brick.
Page 17
~.l"n' C1F C1HLF:4F. $TAIHIti
fal
s a
D a a
H~yN L
U'j U) E QC"
cc 0
y U) Q N -
~wme 3 ~ a a Z e 4_s
zw z CD a~ ~L ~ V u
w v - z
yoo Z v >
XNQm W U J of (n H N
w w j L *
0
x
J
h /J
V
U
h
J
m
J
l1 ~J~y fe~ -
e,
I~ iy
~ U ~ v~ g tJ o
S SOP ,
W _ V + J( U
I V ~ 9 d' dk,yy~ st`0 OaiP I N
wI C1 ti . 1-
G¢~ C N
ti of
i
EEK
co
oaayl' ~ yE ~ 0 9+ ~ f> ~
C° ~ i J_GIIO
"fib gyp \
7 .\~Oa yse ~
7
EST
d
e, / P S Rl\fER VJ
¢eec ~'z`° ~~J9
1 ~ 082
_ ' O~NP11E
oa aa~ Hans
TURKEY GREEK U p
yA
~ 332IJ ,(HS
0%WLIXII 531MV9Nf1CH 93HS U3M35 0091] Z090f t\dYW9tlM5990dVW\3S9MM NOI1YlE 393110 t090flMM N31tlM\'JNIN33NI'JN3StllltlO LE-M 311A
EXHIBIT B
Manholes are typically located:
• at pipe junctions;
• where there are changes in pipe size, direction, or slope; and
• at regular intervals to serve as system access points for inspection and maintenance.
At locations where large vertical drops are required, drop-inlet manholes are used to convey the
wastewater to the lower elevation in order to minimize splashing, erosion, and gaseous releases.
2.4 EXISTING LIFT STATIONS AND FORCE MAINS
Pumping stations in a wastewater collection system are often referred to as lift stations. Lift
stations are typically required in a system under one or more of the following situations:
• where the elevation of the area to be served is too low to be drained by gravity to existing or
proposed sewer lines;
• where service is required for areas outside the natural drainage area but within the service
district; or
• where omission of pumping, although possible, would involve excessive construction costs
because of the deep excavations required.
2.4.1 Locations
There are currently 11 active lift stations in the City's collection system, shown on Figure 5. Five
of the lift stations (Aggie Acres, Fox Fire, Hensel Park, Luther Street, and Valley Park) are located
in the Carters Creek service area. Six lift stations (Creek Meadows, Indian Lakes, Lift Station #2,
Lift Station #3, Lift Station #4 and Westminster) are in the Lick Creek service area. The Valley
Park Lift Station, while in the Carters Creek service area, discharges to the Texas A&M
wastewater system. The Nantucket Lift Station in the Lick Creek service area is no longer in
service.
2.4.2 Descriptions
A comprehensive summary of the design characteristics of all nine active lift stations is provided
in Table 4.
Page 19
Il-Ll C~rvc 0)1JYA;ESrnnov
0
m
d
Ilam lam to dol eplsui of pax lam to uwlloq wog eouels!P IM.gA^ = Lade(] IE40lJO^81 ,47da0 Ielol, of le^91 uuqV RWM 461H, wog souels!p j-.4AA = PJ0Oq~dS
la^al -IV ieleM 461H, Pus le^el W sdwnd, uew4eg ewnlo^ = awnloA leuogeied0>
Ilam lam to dol ap!sul q pem Lam to wolloq wog ewelslp leoaa^ = 41da0 Ieloic
Lisp awg uni io jelew mog lenpe lou pus 09 Pue OLOZ lo) sung lepow agl uo paseq eje smog slemalseM,
podai eql to uopiedaid Bump elgel!e^e Lou sem elep sueew, grye wogs eleP S1 Vied LalleA,
ON ON ON ON ON ON ON SOA ON ON ON ioleuauagagS-u0
906'E ZL9'Z V9L'Z SVO'E 969'Z 9 I6'Z I88'V L96'Z 869 Z00'E 69V'L 8 41 alxa V
l 8Z£ VZ'8ZZ V9'E8Z 982 SLZ 69Z 9E Z9Z Z'96Z 6EZ S 69Z 9L'Z6Z 11
uoge^a13 061egosl0
V 4 9 Zt 01 8 9E ZL V 9 6 u! lalawel0
u!ew aoJod
VO'ELE 9 ZZE 2 LLZ ZL l61 OLZ E£ 09Z 6L'E9Z 9Z E6Z 60ZEZ ZLZ 62 S8Z 8 uoge^a13 Aa^W
9 9 9 Zl Ot OL 9 .91-Z 8 ZL g u! ialawel0
a Id lalul
ZZ 9Ll S9l 6VE M 61 61 Zl SZL SZ 906 Os wnd
91 S£l IL E LE EL OL LL 89 9'9 EL LL 9 wlelVJaLeM4 !H
- - ZL Etc S'EL - - 9'8 - - u0 wndwE
S'LL SSL EL E1£ Vl ZL Lt 8 6 LL 8L9 u0 wndwZ
OZ 91 v1 9ZE St SEL 8L SZ Ol ZZ BeL u0 wnd,4
ll
sla^a3 lewpiad0
9L 11 L9L L8 09c EO'6 9L8 ZZ EL'9 9VL LZS 8 sPleogaajj
Z8 L61 SZ ESE E L ZE 9LZ VE VSZ 80'9ZZ SU 19E E L L L L 8V 99E L VE L l l Eli ,BMIOA
-36999£8 euogeied0
8Z'6EL 690901 00041£ to 9K 6L R9 VV899 V9 809L VV'£LV 09 SOLE V£E6Z N awnlweloi
9L 9Z 198L OV vs 9L CO 6L SL'6L 9L £9'VL 9'LZ BE OL s e41 aOlelol
m 9 S OL Ol 8 9 9 ZL 9 ZL 9 8 Lalawel0
6060£ - V L'89Z S8l V9'V9Z SV'VSZ S VVZ 9'98Z S LZZ 9'69Z 69 09Z 4 ^913 woll08
m
2 Z 9EE 9 L8Z SZZ SL Z9Z 9CVLZ 9W ME 8 ZVZ 16 LO l6Z 8 -A- 913 (161
W Hem lam
X
HOlSLI HOlS61 HOl HOl HOiU HoiL£ HOlOEL H(Il HOl HOl0tt HOl ugea
~owd608L @wd68Zl OLL@7 898@7 @7wd600L @7wd6OZg ~owd600 06-99 9VZ@7 @7wd6SLE lCl@7
wd6OgZ wd6gZgL @7wd6 wd666E wd6SVL
OOZ L-OSV
£Z E OE 0£ OL OZ S'L 8Z S EZ - azlSioloW
Z Z E E £ Z Z E Z Z Z )agwnN
ME S80E-d0 WE OLIE ME ZSIE ZLIL OOPNldA ZOLE ESIf-dN IapoW/inueW
-dNABAlj A6Aj -d0A6AIj -dOA6AIj -dOA6AIj -dOAMJ /lallaoZ 18SN -d0A6Alj A6Nd
olglslawgnS a1q!siawgnS alq!siawgng alglsiawgng olq!slawgnS elglslawgnS alglslawgnS le nlulua0 alq!sjawgnS alq!siawgng 91q!siawgnS a 1
s wnd
aw!i aw!i awli and aw!l aw!i aw!l ew!i awll and awli awli aw!l sialaW algel!e^V
and dwnd and dwnd dwnd and dwnd and dwnd and dwnd and dwnd dwnd and dwnd and dwnd and dwnd
Iu0 WO WO WO Iu0 Iu0 NO Iu0 Iu0 Iu0 lu0 a lleiauag
IIaM lam 119M )OM 118M IOM IIaM lam IIaM lam IIaM W 119M 19M 118M 19M Hem 18M 110M 19M 118M IGAA
0£ ZOZ EZ9L 969 996 V 99L 8L 98 8LZ (wdb) jMOllead
4l 96 LS£ EZZ LVZ Z 69£ 8 LV LEL w :IM(] ^V
zsmo! j jalemalsem
leguaplsed lelluaplseb leguep!sed leguap!sed lequeplsaa lequaplsad lequap!sad leguop!sed lequap!sad lequaplsad lequap!sad a i peon ewud
6l'0 LL0 100 910 160 6E1 Z00 990 VLO EV'0 Vl L Zlw ozlSlue-5
easy ael^ias
900Z SOOZ 1002 OIOZ £861 £861 9002 8L6L 4861 9002 OIOZ )I!n8 ueaA
01 nWvl 00 01 00 01 01 00 00 01 00 eaiyao!'es S
of sdwnd of sdwnd
„l
]ng'00 In4'01
4 ~3
Sim SIM SIM Psi ' 3
A8VWWLIS N011V1S ijlI V 318V1
EXHIBIT B
The lift stations vary in age from less than 1 year (Aggie Acres and LS #4) to 32 years (Hensel
Park), and serve areas that range in size from 15 to approximately 900 acres. Several of these
service areas are expected to grow with future development, while others are already fully
developed and will remain with the same service area. The lift station existing service areas are
delineated on Figure 5.
The basic lift station design in the system includes wet wells with submersible pumps. All of the lift
station pumps use constant-speed drives that operate intermittently, rather than variable-speed
drives that adjust to the wet well level or rate of inflow. Each station utilizes at least two pumps
that alternate in lead/lag operation to equalize run times.
All of the lift stations are fully automated. The wet well water levels are monitored with ultrasonic
sensors or floats that signal pump operation and trigger the high-level alarm. A backup float-type
alarm is also provided at each station. Most alarms and pump statuses are integrated into the
SCADA system and distributed to plant staff to expedite a response. In addition, portable pumps
and generators are used as backup for all of the lift stations. Hensel Park Lift Station has a
permanent generator installed.
2.5 CONDITION OF SYSTEM
No surface or subsurface investigation was conducted to perform a condition assessment of the
existing collection system. The City is naturally aware of the location of the older system
pipelines and manholes, allowing for alertness toward potential system condition problems. Other
clues that would indicate poor system condition include line collapses (if detectable), root
penetration, service backups, observed infiltration and inflow, etc.
The City currently performs preventative maintenance of the collection system using CCTV
inspection and cleaning of lines. The City has averaged 14 miles/year from years 2006 to 2009,
resulting in a 22-year inspection cycle of the collection system. The City would need to inspect
approximately 61 miles of the existing system each year to result in a 5-year inspection cycle of
the entire system. A 5-year inspection cycle not required by regulation, but is a typical inspection
cycle used by many municipalities.' The actual inspection cycle is determined by the municipality
' EPA/600/R-10/082, Innovative Internal Camera Inspection and Data Management for Effective Condition Assessment
of Collection Systems, April 2010
Page X11
Grr c~c Giu.ts:F Srnnci:.
z. LU
~w
W a ❑
}ow z
w o
c~ z o W z
Z) 00
z O Z CO U) C/) U
NQL Z< U JQ _3 J N m r J J> U _
co LL CL X W 0 W Q Q Q U LL = J co J J J>IL A
> H N
w U' I- z >
JQ J
x
Fem.
J
y
J
V
T
O~
O~
6P
GE
~4P
F H
b5
SS~ 2• -j
Ju
6
5~ J
b~
V~Q
~pPP
p~
V'
\ `6
W ~.1 N II o
s oN~,~,PeN p~oa p
Q6S MOa 930tl1NOa3 O~O~ d / G~
~obac~" od
¢PR~P~ ania sa3Nioae'~b
6p po 71
5 ~yP~b "Lpp ati
S 6 i
04~ Z
1 abbe Spa/ s7 0'~ 0.~p0 Qn ~2"~
~QO
Ldp Zn
0
~~p~p~~~pP ~OSpryO
F y ~iya
J
&O~g03
1~~ , ~ JNN~
Oa H33tYJ A3Ya111
h
O%W'L LXII Stl3aV 30ina3S NOI1Vls fill 151X3 ~OIJ 2e90C~NVW~aMS000dtlYA3SOM"A NOIIVIS 303110 ZY90C ~VANI a31VM~ONIa33Ni9N3SV1lV0 C[U1d3O~~3lld
EXHIBIT B
and is based on numerous factors. A typical For cleaning, the City has averaged 98 miles/year
resulting in a 3-year cycle to clean the entire system.
3.0 HYDRAULIC MODELING
3.1 PURPOSE
In order to evaluate the capacity of the existing wastewater collection system and to establish a
tool for planning future expansion, a hydraulic model of the system has been created. The
InfoSewer'rm software, developed by MWHSoft, was used for this purpose. InfoSewerTm is a
commercially available program that uses an integrated visual display to present system
information and to report hydraulic capacity. The modeling software utilizes an ArcGIS interface
and has many similar features as the InfoWaterTm modeling program utilized for the City's water
distribution system. This is the first comprehensive model of the City's collection system.
3.2 PHYSICAL DEVELOPMENT
System inventory was obtained from the City in GIS for import into InfoSewer TM. The City GIS
information was compiled with as-recorded drawings and system databases for import into the
collection system model. The data was imported from wastewater mains and features shape files.
Once imported in the model, connectivity had to be established. While manhole invert data was
provided in GIS, manual manipulation was required to reassign those inverts from the manhole
features to the connecting pipes as required by the modeling software for connectivity. In the case
of missing inverts, record drawings were referenced and the invert calculated. For those inverts
where sufficient data to perform a calculation was lacking, field surveys were completed to
determine inverts at critical manholes. Assumptions were made for missing inverts of non-critical
manholes, and noted as such in the model.
The model was developed in accordance with the 2009 edition of the City of Bryan/College
Station 2009 Unified Design Guidelines (City Guidelines), the City of College Station
Comprehensive Plan (2009) and TCEQ Chapter 217 rules (2009).
The model was developed to account for pipes of 8-inch diameter or larger. Where connectivity
was necessary, 6-inch pipes were included. In essence, laterals and mains within subdivisions
are not included. Collectors taking flow from subdivisions and the trunk lines conveying to the
Page 13
F $TATI<)ti
u711tX:
dw A~.r rfh IP.411q
fal
EXHIBIT B
WWTPs are included. The City has a total of 6,957 pipe segments; the section of pipe between
manhole nodes. Of those, 3,541 are included in the model, or 51
3.3 PEAKING FACTOR
Several different methodologies for determining PFs were discussed with City staff, including
using a peaking factor of 4.0 as outlined in the City Guidelines. Ultimately, the Ten States
Standard PF method, accepted as an industry standard and adopted by EPA, was applied in the
model. The PF is calculated based on population (P) as follows:
Peaking Factor = 18 +P/1000)^0.5
4+ (P/1000) 0.5
Per the 2009 Comprehensive Plan, Population/DU = 2.37; therefore, P = 2.37 * DU. Table 5
summarizes the overall PF for each sub-basin using this methodology. In the model; however,
the above PF equation is applied to each pipe segment.
TABLE 5: CALCULATED PEAKING FACTORS PER EXISTING SEWERED SUB-BASIN AREAS
Ten States
Population Standard/EPA
CC1 Basin 6522 15457
CC2 11258 26681 2.5
CC3 1292 3062 3.4
CC4 956 2266 3.5
CC5 5272 12495 2.9
CC6 8227 19498 2.7
CC7 4770 11304 2.9
CC8 390 924 3.8
CC9 797 1889 3.6
LC1 2090 4952 3.2
LC2 2092 4958 3.2
LC3 164 389 4.0
LC4 1241 2941 3.4
LC5 1086 2574 3.5
LC6 248 588 3.9
LC7 835 1979 3.6
LC8 144 341 4.1
LC9 712 1687 3.6
Page 114
(:riv cw linaxce Srnno.':
dr Mn.JA.R nd 4;d4
EXHIBIT B
These PFs were compared with the peaking factors seen during the flow monitoring period and
determined to be acceptable. This methodology was applied to the future growth areas as well to
model peak dry weather flow conditions.
3.4 WASTEWATER FLOW LOADING
The total wastewater flow in the system is a combination of sanitary flow and rainfall-dependent
infiltration and inflow (RDII). The spatial distribution for flow allocation to the model was
established by dividing the Carters Creek and Lick Creek services area into 18 sub-basins based
on topography, land use, and existing sewer system infrastructure (see Figure 4).
The City Planning Department determined the existing and build-out living unit equivalents (LUEs)
for each parcel in the existing sewered system, and the future growth areas in accordance with
the City's 2009 Comprehensive Plan, and provided this information to HDR2. The data does
consider infill of vacant lots and future redevelopment of developed lots within the existing
sewered system. Parcels within areas with septic systems inside the existing service area were
identified and not included in the loading process, as shown on Figure 6. Future sub-basins were
delineated, with the sub-basin name ending in "X". For example, LC-5X is a future sub-basin in
which flow will be conveyed to existing LC5 sub-basin. The future sub-basins are also shown on
Figure 6.
The unit flow rates of 161 gpd/LUE and 154 gpd/LUE for the Carters Creek and Lick Creek sewer
sheds; respectively, were applied to each parcel to determine the wastewater load 3. Each parcel
wastewater load was then converted from gallons per day (gpd) to gallons per minute (gpm). The
Load Allocation extension in InfoSewerTM was then used to allocate the parcel-based existing and
build-out loads to the model nodes (manholes) for each corresponding model scenario. The
model loading process establishes the base dry weather existing and build-out loading to build
additional existing and build-out scenarios from, such as peak and wet weather scenarios.
2 Excel Spreadsheet via email from Lindsay Kramer, City Planning, dated January 12, 2011
a Wastewater Demand Analysis 2010 Update Technical Memorandum, HDR, May 2011
Im. V~ Page 116
Gn cw lin~~c:e Srnnov
a w -aa) a
W,yo o @
<22 E Y ` f° x (7
=JZ a) J ' 9. LL
F O a) fn a) s Wig
3 o c a) a !0
w w 1 Y U` o $ c3c
W j to J N d Z
W p v p m a1 aa) a 42
U u b
co a) F a F lLl U J > U) H f i >
z ~1
I mom
i~ < yp
bS lF~
♦ I S~
Vj4y! _
~ fbll /
o
LU 6o
I P6S S SAMd a3C~i>i l\G rP , rl,~~ ♦ ' I I♦. SG I
eP~ ° add r ~rir 1r'r~r~~ i~~i i ♦♦~.~i~`~
-IV
z' r a k,~ ~ `♦R ~ r e ri 't
dy ~ ♦ ~ ~ h os ~ ♦ L ~ ~C ♦ r
)Al
T I > it " `Gir ~i f°
l ZSr/
Z♦ IR
J% dog r,
.R \
l* do
PP ~ d~ o
Eo-
og2E~
~yE
0NN
oa H33a~.~>rarl \ ~ ~
5
OXW (4Xll 1300W N1030f1lONl lON BOON Z180f 4\dVW0aMS000dV1Y~350MM NOI1V15 3031100 2>90flWN~ tl31VM\9NItl33N19N35tl11V0 CfO1d30~~31IJ
EXHIBIT B
The flow monitoring data was compared to the model output for validation of sub-basin flow. For
the Carters Creek sewer shed, the initial dry weather model flow from the existing sewered
system compared within 15% of the dry weather flow monitoring data4. For the Lick Creek sewer
shed, the initial dry weather model of the existing sewered system compared within 9% of the dry
weather flow monitoring data. There were six flow monitoring locations whose dry weather model
flow was outside the ±10% target calibration range when compared to the flow monitoring data.
Therefore, a steady state calibration process was completed to improve the comparison between
the model and flow monitoring average daily dry weather flows within 10%. This calibration
process and outcome are described in Section 3.6.
For the Year 2030 scenario, the City Planning Department provided an overall LUE per sub-basin
instead of on a per parcel basis for the existing sewered area. In order to assign a loading to a
specific parcel for the 2030 model scenario, an average LUE/A was calculated for each sub-basin
by taking the overall LUE per sub-basin divided by the total acreage in the sub-basin. This
average LUE/A value was then applied to each parcel in the existing sewered system.
As with the year 2010 and build-out, the unit flow rates stated above were applied to each parcel
to determine the wastewater load, and using the tools available with the software, the load was
assigned to the nearest manhole.
3.5 SANITARY FLOW
The total flow in a sanitary sewer system originates from several different sources. Wastewater
discharges from municipal sources typically comprise the majority of the total load. Other sources
of flow include infiltration of groundwater and inflow from storm events, often referred to together
as I&I. From December 5, 2009 to February 8, 2010, flow monitoring was conducted for the
purposes of this analysis. Results of the flow monitoring presented in the Temporary Flow
Monitoring TM (HDR, April 2010) are used in the determination of groundwater infiltration (GWI)
and rainfall dependent infiltration and inflow (RDII).
4 TM-1: Temporary Flow Monitoring, HDR, November 2010
Page X17
(.1 fY OF C(711F1iE 5"fAfl(lY
~ dr ka ad. Rnun+F t%4~
EXHIBIT B
3.5.1 Municipal Wastewater
Municipal wastewater flows originate from various sources, including residential, commercial,
industrial, and institutional facilities. Unlike infiltration, which enters the collection system at a
constant rate throughout the day, municipal wastewater flow typically exhibits a diurnal flow
pattern similar to the one shown in Figure 7. This flow pattern has been applied to all municipal
wastewater flows in the model analyses.
3.5.2 Groundwater Infiltration (GWI)
Groundwater infiltration is defined as the constant inflow of ground water into the collection
system. This value is determined by several factors including the location of the groundwater
table and the overall physical condition of the collection system. Furthermore, GWI can also be
impacted by periods of wet and dry weather conditions. For wastewater collection systems, such
as College Station, that do not typically experience substantial industrial and/or commercial flows
throughout a given 24-hour period, GWI is equated to collection system flows during the late night
and early morning hours as measured by the flow monitors. The flow monitoring period for
College Station coincided with a very dry period of time. Based on data collected during the flow
monitoring process, the discrete minimum daily flows, which equates to GWI, are presented in
Table 6 along with predominant land use and any creeks or tributaries contained in the sub-basin.
Page 118
CrrrculiNtrre5reiiou
~ .a. i.,o, ate. vty
EXHIBIT B
Example DWF Pattern
Sub-Basin CC1
3.000
2.500
2.000
0
1.500
3
0
LL
1.000
0.500
0.000
O -4 N M V Ln l0 I'. co Ol O e-1 N M CT v1 W ^ 00 Ol O -1 N M :T
ci -1 a--i -1 -1 N .-1 -4 e-1 c-i N N N N N
Time, (hr)
Note: From flow monitoring data on 1/24/10
FIGURE 7: DIURNAL FLOW PATTERN
Page 119
Grvc>Flin.Irs:eSrnnon
00/
EXHIBIT B
TABLE 6: OBSERVED MINIMUM FLOWS
Discrete
Sub-Basin ID Minimum Flow Predominant Land Use' Basin Contains Creek or Tributary?
CC1 0.47 Natural Area - Reserved Urban Carters Creek
CC2 0.09 Natural Area - Reserved Tributary to Carters Creek
Neighborhood Conservation
CC3 0.00 Restricted Suburban Tributary to Carters Creek
Natural Area - Reserved
CC4 0.13 Restricted Suburban Urban Tributary to Carters Creek
CC5 0.26 Neighborhood Conservation Urban Tributary to Carters Creek
CC6 0.67 Urban Natural Area - Reserved Tributary to Carters Creek
White Creek
CC7 0.24 Neighborhood Conservation Tributary to Carters Creek
Natural Area - Reserved
CC8 0.35 Suburban Commercial Tributary to Carters Creek
CC9 0.15 Estate Tributary to Carters Creek
LC12 NIA General Suburban Lick Creek
Suburban Commercial
LC21LC33 0.15 Business Park Lick Creek
General Suburban
LC41LC64 0.20 General Suburban Spring Creek
Natural Area - Reserved
LC5 0.20 Restricted Suburban Tributary to Spring Creek
LC7 0.19 Restricted Suburban Tributary to Lick Creek
LC8 0.00 General Suburban Alum Creek
LC9 0.03 Restricted Suburban Tributary to Alum Creek
Land use description based on 2009 Comprehensive Land Use Plan
2 LC1 flows were determined from lift station run times and flow records which did not provide sufficient data to determine minimum
flows.
3 LC2 and LC3 were monitored as one basin due to the available number of monitors and the relatively small size of LC3. The flow
monitor serving this area experienced backwater conditions and has suspect data.
4 LC4 and LC6 were monitored as one basin due to the available number of monitors and similarity in land use
• / Page 120
y,~ Grvc C NIEGF.STMO N
laq
EXHIBIT B
won
The sum of the discrete minimum flows is approximately 3.1 MGD, excluding flows from the LC1
Sub-Basin. Several factors including the presence of high groundwater, proximity to lakes and
streams and the predominant land use within each drainage sub-basin help to determine if these
flows are indicative of groundwater flow. The presence of these factors is also included in the
table for reference. Figure 4 illustrates drainage basins and stream locations.
3.5.3 Rainfall-Dependent Infiltration/Inflow (RDII)
Rainfall-Dependent Infiltration/Inflow is that portion of flow that enters the collection system during
a rainfall event. The methodology used to generate a RDII hydrograph is based on a unit
hydrograph approach where the characteristics are derived from flow monitoring data, and are
defined as R, T, and K. The R factor represents the percentage of rainfall that entered the system
within each sub-basin during the monitoring period. T represents the time of concentration, or the
time difference between when the rainfall started and when the peak flow hydrograph was
observed at each of the monitoring locations. K, the recession coefficient, is the ratio between the
peak of the flow hydrograph and the point at which the RDII receded. The application of this
methodology in the model is further described under the Wet Weather Calibration section.
3.6 CALIBRATION
A schematic diagram of the drainage between sub-basins to the wastewater treatment plant was
developed for each sewer shed, as shown in Figure 8. Using the methodology described above,
the existing dry and wet weather wastewater flows were determined for the City of College
Station. These schematics and wastewater flows were used to allocate load and calibrate the
hydraulic model of the City's wastewater collection system.
3.6.1 Dry Weather Flows
The average daily dry weather flow from each sub-basin was calculated based on the measured
data from the flow monitoring data during the period of January 24th to 27th, 2010. Based on the
schematic diagrams of the sub-basins drainage, discrete daily dry-weather flows were calculated
for each individual sub-basin. The discrete daily flow is the flow actually contributed to the
collection system by each individual sub-basin and will be utilized for subsequent analysis. The
average peaking factor from the selected dry weather flow monitoring period is 2.35. Table 7 lists
the measured and calculated average daily dry weather flows for each sub-basin from the flow
monitoring data.
Page 121
CnY cw C;cauce. Sunov
L .6 Aor.fd. A-" V"7
EXHIBIT B
FIGURE 8: SEWER SHED SUB-BASIN DRAINAGE SCHEMATIC
CARTERS CREEK BASIN FLOW SCHEMATIC
Q35A2M009
P32A2M016
Q34A1M011
Q34A1M031 P3391M003 Q35A2M 5
(PARALLEL LINES) Q3542M044
Q34B2M025
Q34BIM026
(PARALLEL LINES)
Q3591M 3
03582M037
Q34B2M027 Q35RIM037
LEGEND:
Lift Station
=Drainage Basin
_WWTP
- Gravity Main
- Force Main
P3242M0. Flow Monitoring Location
LICK CREEK BASIN FLOW SCHEMATIC
= ___40 CCBASIN
R3842M021
1
1?,;
40AIM003
54181M002
LEGEND:
38B2M013
T3961M001 Milt Station
=Drainage Basin
981M031
_WWfP
Gravity Main
Force Main
P32A1M0. Flow Monitoring Location
Page 122
Crrv ctE CLaItz:F. SrXntm
dv k- fd,, x-A tvy
EXHIBIT B
.
FLY M
TABLE 7: DRY WEATHER FLOWS - SUB-BASIN SUMMARY FROM FLOW MONITORING DATA
Approximate
Daily Sub-Basin ID Acreage Flow Daily Flow 01124/2010 -
0112712010
CC1 2135 1.15 0.26 1.58
CC2 1855 1.03 0.75 1.59
CC3 394 0.21 0.21 7.37
CC4 340 0.33 0.33 1.53
CC5 1060 0.86 0.86 1.58
CC6 1278 1.64 1.64 1.57
CC7 1066 0.71 0.71 1.50
CC8 260 2.20 1.34 2.78
CC9 844 0.49 0.35 3.53
LC1' 497 0.14 0.14 N/A
LC2/LC3' 701/70 1.06 1.06 N/A
LC4/LC62 914/315 0.83 0.32 6.22
LC5 386 0.51 0.51 1.85
LC7 751 0.90 0.90 1.92
LC8 226 0.04 0.04 2.06
LC9 995 0.12 0.12 1.96
' LC1 and LC2/LC3 flows were determined from lift station run times and flow records which did not provide sufficient data to
determine a peaking factor.
2 LC4 and LC6 were monitored as one basin due to the available number of monitors and similarity in land use.
Page X23
C;1lY OF Cf)IAJ:GF. $TAT7l1N
~ dr Mw•fd.l&wu•I ~1
EXHIBIT B
.
MIMI[
Table 8 shows the uncalibrated flow comparison between the model and the measured flow
monitoring values. There are six flow monitoring locations whose modeled percent of observed
flows were outside the ±10% calibration target.
TABLE 8: DRY WEATHER FLOWS - UNCALIBRATED MODEL AND FLOW MONITORING COMPARISON
Daily Daily Uncalibrated
Modeled Contributing Average Flow Monitor Sub-basin(s) from Flow Monitor Flow from Model Observed P32A2M016 CC1 0.89 0.91 2.0%
P33B1M003 CC1 1.15 1.05 -8.6%
Q34A1M022 CC2 0.27 0.41 49.1%
Q34A1M031 CC2 1.03 1.40 36.4%
Q34132M025 CC1/CC2 2.12 1.91 -10.0%
Q34B2M026 CC1/CC2 1.03 0.96 -7.1%
Q3462M027 CC3 0.21 0.21 -1.2%
Q35611V1043 CC4 0.33 0.15 -53.8%
Q35A2M015 CC5 0.86 0.85 -1.4%
Q35A2M009 CC6 1.64 1.3 -20.9%
Q35A2M044 CC7 0.71 0.77 9.1%
Q35B1M008 CC8 2.20 2.13 -3.2%
Q3562M037 CC9 0.49 0.45 -8.1%
N/A' LC1 NIA N/A N/A
CCLS All CC + LC1 7.25 6.89 •5.1%
R38A2M021 LC22/LC33 1.06 0.32 NIA
S3862M013 LC4/LC63 0.83 0.74 -10.6%
R40A2M003 LC5 0.51 0.17 -66.5%
T3961 M031 LC7 0.90 0.87 -3.9%
S4161 M002 LC8 0.04 0.02 -59.1%
T39132M002 LC9 0.12 0.13 9.9%
LCLS All LC - LC1 1.03 1.01 -2.0%
LC1 flows were determined from lift station run times
2 The model and flow monitoring comparison for LC2 was omitted due to the MH R40A21VI003 flow monitoring
data being affected from backwater from LS2.
3 LC4 and LC6, and LC2 and LC3 were monitored as one basin due to the available number of monitors and
similarity in land use.
Page 124
fal ~,fIY Of (.()ILf(:F. $TAII<Y,N
dr A.n.JAr. R.vnrA W47
`wT
EXHIBIT B
To increase the accuracy of flows between the model and the flow monitoring data, a calibration
process was completed for the existing dry weather scenario. Table 9 presents the results of the
calibration that improve the overall accuracy of the model compared to the flow monitoring data.
The following steps were taken to improve the calibration of the existing average day dry weather
scenario:
1. The initial existing model dry weather flow allocation described in Section 3.3 was
compared to the average daily flow monitoring data from January 24th to January 27tH
2010 (a representative dry weather period during the flow monitoring collection period).
The only flow monitoring location not compared was FM R38A2M021 because of flow
backing up from LS 2 which made the data invalid.
2. The model flows into CCLS and LCLS were compared with the summed contributing
monitoring flows and they matched within 10%. However, the flows did not match the
recorded flows at the WWTP influents for the same time period; the summed contributing
monitoring flows and model results were higher at both locations.
3. For those flow monitoring locations were there was a difference greater than ±10%, 4
locations in Carters Creek sub-basins and 2 locations in Lick Creek sub-basins
(highlighted red in Table 8), adjustments were made to the loading in the upstream sub-
basin by using a ratio of the difference in flow. For example, if a sub-basin in the model
had an average daily flow in the model of 0.5 MGD and the flow monitors had an average
daily flow of 0.3 MGD, then all of the loads in the sub-basin were multiplied by 0.6 (0.3
MGD/0.5 MGD). By using this ratio, the flows are closer in agreement between the flow
monitors and model results.
4. Step 3 was completed once for the Carters Creek basin and twice for the Lick Creek basin
to increase the accuracy between flow monitors and model results for the locations that
did not match within ±10% calibration target.
Page 125
la~ c,rrrc~rCc~L:cF:S~~nciu
EXHIBIT B
TABLE 9: DRY WEATHER FLOWS - CALIBRATED MODEL AND FLOW MONITORING COMPARISON
Modeled
Flow Monitor Model Calibrated Contributing
Flow Monitor Average
Daily Daily Observed P32A2M016 CC1 0.89 0.90 0.4%
P33131M003 CC1 1.15 1.04 -9.4%
034AlM022 CC2 0.27 0.26 -4.0%
Q34A11V1031 CC2 1.03 1.05 2.6%
Q34132M025 CC1/CC2 2.12 1.55 -26.9%
Q341321V1026 CC1/CC2 1.03 0.81 -21.9%
Q3462M027 CC3 0.21 0.22 3.0%
Q3561 M043 CC4 0.33 0.32 -5.4%
Q35A2M015 CC5 0.86 0.87 0.7%
Q35A2M009 CC6 1.64 1.63 0.9%
Q35A2M044 CC7 0.71 0.77 8.9%
Q3561M008 CC8 2.20 2.46 11.6%
Q35132M037 CC9 0.49 0.45 -8.1%
N/A' LC1 N/A N/A N/A
CCLS All CC + LC1 7.25 6.68 -7.87%
R38A2M021 LC22/LC33 1.06 0.32 N/A
S3862M013 LC41LC63 0.83 0.83 0.1%
R40A2M003 LC5 0.51 0.26 -49.5%
T3961 M031 LC7 0.90 0.96 6.1%
S4161 M002 LC8 0.04 0.03 -17.0%
T3962M002 LC9 0.12 0.16 29.0%
LCLS All LC - LC1 1.03 1.12 8.9%
LC1 flows were determined from lift station run times
2 The model and flow monitoring comparison for LC2/LC3 was omitted due to the MH R40A21V1003 flow
monitoring data being affected from backwater from LS2.
3 LC4 and LC6, and LC2 and LC3 were monitored as one basin due to the available number of monitors and
similarity in land use.
The resulting calibration reduced the difference between the model flows and the flow monitoring
data; however, by adjusting the upstream flows in the calibration process, the downstream flows
did not match as closely as they first did before. This is to be expected with the calibration
process; as the upstream flows are more closely matched, the downstream flows are adversely
altered.
Page 126
~,I'fYOf(.()IAEC:F$TATIl1N
♦ dv Avr eJd. AebvrF Lily
EXHIBIT B
Only two of the flow monitoring locations in Carters Creek sewer shed and 3 locations in the Lick
Creek sewer shed were outside the ±10% calibration target. Although the number of locations
outside the calibration target increased by one location in the Lick Creek basin, most of the
locations match more closely to the model flows than before calibration and the percentages of
the flow difference decreased overall. The Lick Creek sewer shed did not calibrate as well as the
Carter Creek basin, however the Lick Creek basin flows are much less than the Carter Creek
basin flows which makes differences appear larger than they are.
Possible reasons for the flow monitoring locations that still do not match within the target range
after calibration include:
• Since some of the flow monitors had low average daily dry-weather flows (<0.2 MGD), the
percent error between the measured and modeled flow appears a lot greater than the volume
difference really is.
• The flow monitoring data could have been off as much as ±10% itself since the accepted
equipment accuracy is t10%. This can make the comparison off by 10% from the start. This
error is especially possible for flow monitors with low flows.
• Since the dry-weather period selected from the flow monitoring was short, the flow
contributions in the system may have not been the representative average dry-weather flows
experienced over an entire year. Certain areas of the system may not match as well as
others due to the land use composition and percent occupancy at the time of flow monitoring
and may have caused the flows to be abnormally low or high during the selected flow
monitoring time period.
• Seasonal effects on wastewater flow from groundwater-induced infiltration along creeks and
other areas with high groundwater can affect the dry-weather calibration. Since the
characterization of the effects of groundwater on the system is largely unknown, for this
model the groundwater-induced base infiltration was assigned globally across the system
within the sanitary unit flow factors. However, over different seasons and depending on
recent storm events, groundwater levels can fluctuate and not be accounted entirely in the
unit flow factors.
faR Ar A A.-a, pf Page X27
11 ( IIL F47(
d. RnroaA 4i&f
EXHIBIT B
Both WWTP influent lift stations flows match within 10% and are lower than the summation of flow
monitors which is expected due to flow attenuation in the system downstream of the contributing
flow monitoring locations. The flows are still higher than the recorded flows at the WWTPs.
The overall difference between model results and temporary flow meter data is considered
adequate for this planning study given 1) the conservative nature of the model results compared
to WWTP influent data 2) the relatively small amount of flow under scrutiny, compared to system
total, 3) overall system calibration at the WWTPs is within standard modeling tolerances, and 4)
the majority of the flow monitoring locations are within the calibration target.
3.6.2 Wet Weather Flows
The model was calibrated for wet weather flow from the storm event received on January 28-29,
2010.
Typically, three R, T and K values are determined for various flow conditions and are comprised
of three unit hydrographs. The first is the initial event response and includes some inflow from
sources that are directly connected to the sewer system including roof downspouts, leaking
manholes and pipeline cross-connections. T values for this hydrograph are generally on the order
of 1 to 2.5 hours. The second hydrograph includes primarily RDII and infiltration, with longer T
values. The third includes infiltration that occurs long after the event is over. This hydrograph
would occur during a long soaking storm, since infiltration would slowly seep into the collection
system. Each sub-basin was assigned a specific hydrograph, consisting of these R, T and K
factors.
Each manhole in the sub-basin was allocated a percentage of the total sow'I 11 •i a di~lol~! IMIXI
o
sub-basin based on area contributing to that manhole. During the
rainfall event, the model applied the hydrograph for the respective
sub-basin to each manhole. , °'iu" (17`moma -
A sample unit hydrograph for wet weather calibration is shown in REXea aRII I.-N Value 11000
R1 Tnen01e1 ReinW volume('. of R3 O.1S00
Figure 9. R2 Tdeng1e2 P-W Volume of R) O.B70o
T1 Trcne b Peek 1 (hr) 2.2000
T2: Tme,o Peek 2 (hr) 31000
T3'. Tune b Reek 3 (hr) 3.7000
Additionally, rain gauges located throughout the system were plotted K2R-... C. 00
K3: Recession Conet.4 lilac
in GIS and converted to a raster image for the January 28-29, 2010
Page 128
G rv <x liattx;e STnn,rv
EXHIBIT B
,p
storm totals. Basin storm totals were determined and the observed rainfall patterns were also
applied to each manhole.
In this manner, the model applied the rainfall hyetograph, shown in Figure 9, and storm
hydrograph, to each manhole to determine the volume of wet weather entering the model.
Calibration was achieved by adjusting the R, T and K factors so that the modeled wet weather
curve closely approximated the observed wet weather curve.
11 i-_ 10 05
I
9 1i~espone j
s ' I ! ! I i - ! - 1
I l A_ _ L
- - 1.5
4- JJ
7 -
D i _T- ~v c
6 ! _ T 2 -
I a Ocera at spbnsi
M _
3
1+1
JJ
2.5
4 I
3 isCo . RespOnSe
I 1 1 3
1 T__ LL
2
.f 1.-~ 3.5
4i4" ;00
0 T 4
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Hours
-ADF -WWF -RDII ---=RF INT
FIGURE 9: SAMPLE WET WEATHER CALIBRATION - CC5 SUB-BASIN
Page 129
Crrv cu Ccnus;e Suncxv
air
IM,
EXHIBIT B
The R factors determined during the flow monitoring were adjusted slightly in order to match the
model flows to flows observed at each of the monitoring locations. R, T and K values determined
for each sub-basin are included in Table 10.
TABLE 10: RDII HYDROGRAPH PARAMETERS
Average Discrete
CC1 0.26 0.0079 5.3 T3 16.3 1.13
CC2 1.03 0.0180 4 5 5.5 1.04
CC3 0.21 0.0056 4.25 7.75 11.75 1.15
CC4 0.33 0.0025 5 7 11.5 1.14
CC5 0.86 0.0240 5.25 7.25 12.25 1.14
CC6 1.64 0.0017 6.25 8.75 10.25 1.14
CC7 0.71 0.0087 4.25 6.25 8.25 1.22
CC8 1.34 0.0822 4.25 7.25 11.25 1.15
CC9 0.49 0.0049 4.25 7.25 11.25 1.11
LC11 N/A N/A N/A N/A N/A N/A
LC2/LC3 2 1.06 N/A N/A N/A N/A N/A
LC41LC63 0.32 0.0008 4.25 7.75 11.75 1.15
LC5 0.51 0.0007 3 4.75 7.75 1.08
LC7 0.90 0.0017 6.5 8.5 12.5 1.14
LC8 0.04 0.0004 5 7.5 12.5 1.06
LC9 0.12 0.0009 2.75 7.75 12.75 1.04
LC1 was determined from lift station run times; therefore, no R, T, K values were determined
2 LC2 and LC3 were monitored as one basin due to the available number of monitors and the relatively small size of LC3. The flow
monitor serving this area experienced backwater conditions and has suspect data
3 LC4 and LC6 were monitored as one basin due to the available number of monitors and similarity in land use.
With limited rainfall during the monitoring period, R values averaged approximately 0.0153 for the
Carters Creek basin and 0.0007 for the Lick Creek Basin. It is possible that RDII may increase
with a stronger storm and additional flow monitoring may be warranted to determine if this is the
case.
It is generally difficult for systems with low R values (less than 0.02) to rehabilitate the existing
collection system to reduce 1/1 cost effectively. Based on the calculated values in Table 6, sub-
basins CC2, CC5 and CC8, with R values of 0.018, 0.024, and 0.082, respectively, may benefit
faq Page X30
(,1'IYOF~,tNA}T;F.$TA77(1\
.A. k-f.(r &--A tWL7
EXHIBIT B
.
OWTORS1
from 1/1 rehabilitation. As the system ages, the R values may change. It is therefore important to
re-evaluate the collection system when the Wastewater Master Plan is updated.
3.6.3 Wet Weather Analysis Hydrograph
Figure 10 shows the inflow hydrograph for the wet weather event, and the relevant flow
magnitudes are listed in Table 11. To clarify, the hydrograph depicts the sum of all inflows
throughout the collection system, not an outfall hydrograph at the WWTPs. Flow routing effects
throughout the collection system will produce a different hydrograph at the outfall, which will have
lower peaks due to flow attenuation.
TABLE 11: WET WEATHER FLOWS
Basin Footage Discrete RDII Peak Wet Weather Peaking Model Percent of
Sub-Basin ID (LF) Volume Flow Factor Observed Flow
CC1 172,689 0.55 6.14 31 105%
CC2 204,851 1.42 12.57 1.42 102%
CC3 41,304 0.16 1.29 3.0 90%
CC4 34,818 0.04 0.55 0.8 84%
CC5 174,919 1.87 10.46 6.1 110%
CC6 157,208 0.24 4.15 1.3 95%
CC7 178,640 0.84 4.56 3.2 101%
CC8 36,282 0.00 7.81 1.8 99%
CC9 71,927 0.29 2.44 2.5 100%
LC11 69,908 N/A N/A N/A N/A
LC2/LC3 2 101,649 0.00 2.81 1.3 1101%
LC4/LC63 99,000 0.00 1.49 0.9 97%
LC5 62,708 0.00 0.86 0.8 96%
LC7 81,265 0.19 1.73 1.0 93%
LC8 25,364 0.04 0.14 1.7 104%
LC9 52,822 0.09 0.38 1.6 101%
LC1 was determined from lift station run times; therefore, no R, T, K values were determined
2 LC2 and LC3 were monitored as one basin due to the available number of monitors and the relatively small size of LC3. The flow
monitor serving this area experienced backwater conditions and has suspect data
3 LC4 and LC6 were monitored as one basin due to the available number of monitors and similarity in land use.
( Crn o Page 131
cc G)lxs:e STATION
la~ Wk,
EXHIBIT B
Carters Creek Basin Hydrograph
30.0 0.0
25.0 - - 1.0 0
20.0 2.0 E
E 15.0 3.0
d - - w_ -
Ail
10.0 - f 4.0 =
00
m
5.0 5.0
0.0 6.0
0 4 8 12 16 20 24 28 32 36 40 44 48
Time, hours
® Rainfall -----Dry Weather Flow Wet Weather Flow
-RDII Minimum Flow
Lick Creek Basin Hydrograph
4.0 0.0
3.6 1.0
L
3.2 2.0 c
x
2.8 3.0
Z
2.4 4.0
2.0 5.0
m 1.6 6.0
E -
d 1.2 7.0 7i
% - '111
0.8 8.0
0.4 A: 9.0
0.0 - 10.0
0 4 8 12 16 20 24 28 32 36 40 44 48
Time, Hours
Rainfall -----Dry Weather Flow Wet Weather Flow
- - RDII Minimum Flow
FIGURE 10: WET WEATHER EVENT HYDROGRAPHS
Page 132
dx Mm.fd. Vdfq
EXHIBIT B
3.7 FUTURE SYSTEM LAYOUT & SERVICE AREA CONFIGURATIONS
3.8 PLANNING AREA
The planning area for the City's wastewater system was provided by the City's Planning
Departments, and represents spatially the City's annexation plan to Year 2020. This planning
area is approximately 17 square miles in size. The expansion is primarily to the east and south.
As a result, the Lick Creek service area will experience the most growth, whereas the Carters
Creek service area will experience mostly infill of vacant lots and redevelopment, with a small
amount of new growth.
The project boundaries and sub-basins of the new service areas are shown in Figure 11, with
contributing load areas summarized in Table 12. Future sub-basins were delineated, with the sub-
basin name ending in "X". For example, LC-5X is a future sub-basin in which flow will be
conveyed to existing LC5 sub-basin for conveyance to the VVWTP.
TABLE 12: FUTURE SERVICE AREA SUMMARY
4711 Mi. I M., nmi-7TR I - W-Tr-WNT.1111111 Projected Load Area within Future Planning Area
% of Tota AC M12 % of Total % increase
11 1 in Area
CC" 12,911 20.2 68% 2,455 3.8 23% 16%
LC 5,983 9.3 32% 8,206 12.8 77% 58%
*The CC contributing area includes the LC1 Sub-Basin loading
Future planning for expansion of the collection system layout must take into consideration the
existing system configuration and future needs. In general, the locations of existing interceptor
lines are adequate to serve the needs of the planning area. The alignments of existing trunk
mains have been projected into the currently un-sewered regions of the planning area, and new
trunk lines have been plotted in the locations that they will be required. These extensions were
assumed to either follow major road corridors, existing development, or drainage basins based on
topography. However, the majority of the future growth area will need to be served by future lift
stations in order to get the flow into the gravity trunk lines. (See Figures 24 and 25 for the
projected layout of major system components within the planning area).
GIS Shapefile via email from Lindsay Kramer, City Planning, dated October 13, 2010
Page 133
u Ccnirx:e S-fw
fa-~ AA ,~,,,.,r. &,..,.h vas
Q N iW ~
QI N ~J -
a a o w D
W
o (n p as_
J
w d d
N C m d2~ j a ~ U N $ ~
W C , N g m 0
W li W W F U] 3 }
7
10[_I
0
x
V
J
Ni
J
G
m ¢ 5
X 4,t 51"6s Z sC.. ; g
W 6~ ~I
U 5 hS t'~ Y''
74.
Z~
~sd E mod' <Y d~
~ ) 1
6 P~ ~ od P i _
s
SPG~ iSZ
y j3 _ y~
r
~>a
d K~
O
1$ ~i)9 1 Ory)
a ~ ~ d0
2 ~ PGA ss~e ~ ~ ~
t~'Zaao dG~ J'
4a4EP ~o
N
4 ~ gM1g3
CEO
N/X33NJ A3Ny~ ~ -
0%W-L4%ll Y3tlV 3~I~tl3S 3tlfllfl~ Ll`Jld 2090EtWVW~tlMS~OGdVW.35JNJ.1 NOI1V15 3'J3110~ Zt90E 4NAM tl31VM1`JNItl33Nl'JN35tl1~V0 LEDLd3O~1 311A
EXHIBIT B
3.9 MODEL SCENARIOS
The existing sewered system, within the 18 sub-basins, serves as the base model. The following
scenarios were developed based on the TCEQ Chapter 217 requirement that an owner must
design a wastewater collection system to handle the transport of the peak dry weather flow from
the service area, plus infiltration and inflow (1/1):
• Existing Dry Weather Calibration. This scenario is the calibrated model for average dry
weather flows of the existing sewered system.
• 2010 Peak Dry Weather Capacity plus 1/1. This scenario is the peak dry weather capacity of
the existing sewered system without consideration of future growth and redevelopment. The
peak dry weather flow is the average flow multiplied by the calculated peaking factor
discussed in Section 3.3. The peaking factor is used to account for the 1/1 component.
• 2010 Wet Weather Capacity. This scenario is the wet weather capacity of the existing
sewered system without future growth or redevelopment calibrated to the January 28-29,
2010 rain event.
• 2030 Dry Weather Peak Capacity plus 1/1. This scenario is the peak dry weather flow capacity
of the existing sewered system and future growth/redevelopment areas using estimated LUEs
for year 2030. The peak dry weather flow is the estimated average flow multiplied by the
calculated peaking factor discussed in Section 3.3. The peaking factor is used to account for
the 1/1 component.
• Build-out Dry Peak Capacity plus 1/1. This scenario is the peak dry weather flow capacity of
the existing sewered system and future growth/redevelopment areas using estimated LUEs
for build-out conditions. The peak dry weather flow is the estimated average flow multiplied
by the calculated peaking factor discussed in Section 3.3. The peaking factor is used to
account for the 1/1 component.
The modeling of existing and build-out conditions allows for locating current capacity problems as
well as predicting where future growth may cause additional capacity problems. Modeling 2030
and build-out conditions provides the City information for planning purposes by comparing pipe
sizes needed as the City grows towards build-out.
Page 135
11-L11 W'n u111F%:i $iA(7(11
A, k-.Jdw &-i, Li&j
EXHIBIT B
Since TCEQ requires sewers to be designed for peak dry weather flow plus an 1/1 factor, the 2010
Wet Weather Capacity scenario was not used in the determination or planning of projects outlined
in this TM. The benefit of the wet weather calibration is that the City could model different design
storm scenarios, such as the 2-year, 24-storm event received June 9, 2010, to be more prepared
for problem areas in the system when a storm event occurs.
4.0 SYSTEM CAPACITY ANALYSIS
4.1 SYSTEM ANALYSIS CRITERIA
To accomplish the analysis, project problem identification criteria is necessary. These criteria also
aid in the development of system improvements to verify that problems have been resolved. The
problem identification criteria established for this project includes the following:
4.1.1 Capacity
A capacity problem is defined as any sewer segment which the depth of flow (d) is equal to or
exceeds 80% of the open channel flow capacity of the given pipe diameter (D), or d/D 0.80,
based on peak dry weather flow conditions. For pressurized conduit, capacity issues are
identified if manholes are shown to be surcharging. When a pipe is undersized, there is a risk of
sanitary sewer overflows (SSOs) occurring.
4.1.2 Velocity
In addition to capacity, maximum velocities for each sewer segment were analyzed. Any velocity
less than 2 feet per second (fps) or greater than 15 fps were identified. Slow velocities could lead
to septic conditions and may indicate sedimentation or blockage problems. Fast velocities could
lead to scouring of the pipe. For either case, the model provides indication of a potential problem
and further field study would need to be performed to determine the cause and proposed solution.
4.1.3 Freeboard Depth in Manhole
If the depth of flow in a manhole at the end of a pipe segment was found to have 1 foot or less
depth from top of water to the ground surface during peak dry weather flow plus 1/1, the pipe
segment was identified as a potential SSO risk.
4.1.4 On-site Wastewater Treatment
There are several existing neighborhoods that currently have on-site wastewater treatment (septic
systems), or is serviced by a sewage lagoon (Carter's Lake subdivision). The wastewater loading
from these areas is not included in the model analysis. These areas are highlighted on Figure 6.
Page 136
CITY (lF 0111}liF $TA110.V
EXHIBIT B
If the City should decide to provide service to these areas, the model scenario should be
performed in order to update sewer capacity and lift station capacity information. In particular, the
loading from highlighted area in Figure 6 within the LC8 Sub-basin is not included in the model
analysis. Should the City provide sewer service in the future, the capacity at Indian Lakes Lift
Station (ILLS) will be significantly impacted.
4.2 OVERALL SYSTEM CAPACITY
The overall system capacity of the collection system, as modeled, is determined to be as follows
in Table 13:
TABLE 13: SUMMARY OF SYSTEM CAPACITY
Service : Year 010 Capacity Year 2030 Capacity Build-Out
CCWWTP 7.2 11.8 13.0
LCWWTP 1.1 3.4 6.0
CCVWVfP currently has a permitted rating of 9.5 MGD. LCVWVTP currently has a permitted
rating of 2.0 MGD. Future expansion will be required at both wastewater treatment plants to
accommodate future growth, as described in the Wastewater Facilities Master Plan.s
4.3 PEAK DRY WEATHER CAPACITY - EXISTING SEWERED SYSTEM
The model results were compared against the analysis criteria to locate potential hydraulic
problems within the existing sewered system for Year 2010, Year 2030 and build-out conditions
as outlined in the following subsections.
4.3.1 Pipeline Rehabilitation & Replacement Projects
A total length of 218,440 ft (41 mi) of gravity pipe has been previously identified by the City as
requiring rehabilitation or replacement. Using the scoring matrix, included in Appendix A, the
projects were ranked and listed in ranking order in Table 14. These projects are shown on Figure
12. It should be noted that of the 832 pipe segments identified, only 322 pipe segments are
included in the model analysis, or 39%. The remaining percentage of pipe segments are located
in subdivisions and are 6 inches or less in diameter and; therefore, not included in model
6 Wastewater Facilities Master Plan, HDR, May 2011.
Page 137
011 L:GF $TATI(lY
~ wk Mvr.Jhr R[Wn(
EXHIBIT B
development. The capacity of the collector lines from these areas are also shown on Figure 12.
If there is a capacity issue in the collector lines, it is listed in subsequent sections.
The rehabilitation of 2 percent of the system pipelines per year (6-inch and larger), or
approximately 32,050 LF (6.1 mi), would be adequate to achieve a 50-year turnover of existing
lines. The current capital plan allows for approximately 10,922 LF/yr (2.0 mi/yr) resulting in a 155-
year rehabilitation schedule.
TABLE 14: RANKING OF CITY IDENTIFIED REHABILITATION PROJECTS
Name Diameter Age Material Repair Critical Capacity Overall
Score
Carters Grove 7 10 13 8 4 - 41
Bo ett 6 10 13 6 5 0 40
Camelot 4 10 13 4 7 3 38
Southwood 2 12 13 3 4 4 37
The Knoll 6 12 11 4 3 0 37
Prairie View Heights 7 12 13 4 0 - 37
McCulloch 6 11 12 3 1 13 36
Dexter 6 8 13 3 5 2 36
East ate Ph4 7 8 10 8 3 0 36
Plantation Oaks 2 8 13 3 10 0 36
Ridgefield 7 11 12 4 2 - 36
Oakwood 6 10 12 4 3 0 35
Bee Creek 1 9 12 1 8 2 34
East ate Ph5 5 10 10 4 5 0 34
Woodson Village 5 11 12 4 3 0 34
South Knoll 7 10 13 3 1 0 34
Culpepper 0 10 13 1 8 1 33
East ate Ph6 4 9 11 2 4 0 31
Tauber-Stanse 7 9 11 4 1 - 31
College Heights 5 8 12 2 3 4 30
NE Trunk Ph1 0 6 11 0 9 3 30
North ate 7 10 11 2 1 0 30
NE Trunk Ph2 0 5 12 1 4 4 25
Lick Creek Ph2 1 5 6 0 5 6 22
Em Pk Bent Oaks 0 6 13 0 1 1 21
Lick Creek Ph1 0 5 7 0 1 5 17
'Per City's 2008-2028 Capital Improvements Plan
Page 138
1~•--sL] Grvc~OnLeeSrniiou
o ~ ~a
z w sp w
w O N L m °F
if Z a 'N m N rp5e
~ O a > rn < t d a n t m I G m o rn z ~ s u'{' w
Z a Z o 2 m a t a 12 A- a ml I I c O m t a W > E ° gg 3=
w F v o _ `m m m u I I w -o c o F o N I Q Yc3_
J w a@ o m m a m m m 2' ° c c m o0 0 >I 75
-I 3 t o °w O1 a s z /
r Co W C Z d y E d a X rn o. m p_ U U U H H c x c a c a o m m U
~E 00
r m o m m o 5 m m m m E u u u w w o m m@ Y o t o
QU w ~mm0c3 0 0 owwww2 z z z 0 n a ~ n n o
~P 3 w~ n C;
UAW ui~~
o
J
J
V
J
v
m GF'
tRp
m ~ 1
w
J N
~v I c
JooEa e ~
10 F 5 a ° N
b
\ ~ S i~ N 9 d/Yyai Z; 6. ~tq °4~ Q
S ap~b a0 '~A'~ 1 ~°N J \ qG
p0
q ` er d P
~ sa icas ~p4 S 9
I O(NS ~ ~ ~ 4. i
E~(JO~ e pPa ♦ o - ~ qPP 4'a
2 b°
~ O
By~afP ~ °a 6aF ~ o~ ea'M1~
sis ` s / y\
r
c
m~
>°y 9 doys~ R~9Oa GO"O r
\ 0dO O
oaav!
S db'(T7~~ ! p0> y
O
bp. \
po Q
t~ols
OX Z-k Si03mO d1N3W 0V d3a 0NVBVH38 031311N301 ADO ZLOlj ZVSO Vd-O-S000dVW\3S3- NOUV15 3031100 Z090S I'N1ViN31VM10NIN33NION3S-VO LCMd30'% 3113
EXHIBIT B
4.3.2 Existing Sewered System - Year 2010
The hydraulic model was executed for existing conditions to identify capacity, velocity, and SSO
issues during peak dry weather flow. A total length of 8,377 ft (1.6 mi) of gravity pipe has been
identified as at or exceeding 80% capacity in the existing sewered system. The segments are
listed in Table 15 and shown on Figure 13. The City staff has validated these areas from their
experience.
TABLE 15: EXISTING PIPES AT OR EXCEEDING 80% CAPACITY (YEAR 2010)
SSO RISK
FEATURE-ID LENGTH (ft) DIA (in) Pipe Type Installed Capacity Velocity (fps)
OR
12 277 10 VCP MAR 1977 100% 3.0 N
49 452 6 VCP 100% 3.4 N
50 170 6 VCP 100% 3.4 N
177 60 21 RCP MAY 1973 100% 2.8 N
571 484 10 VCP JUN 1955 100% 1.6 N
844 541 18 VCP MAY 1973 100% 0.4 N
1283 245 21 RCP MAY 1973 100% 2.7 N
1593 123 18 VCP MAY 1973 100% 0.8 N
1594 51 18 VCP MAY 1973 100% 0.8 N
1630 146 27 RCP MAY 1973 100% 2.8 N
2110 263 21 RCP MAY 1973 100% 2.6 N
2597 229 8 VCP JUN 1955 81% 1.9 N
2765 547 15 VCP 100% 0.5 N
2890 335 10 VCP JUN 1955 100% 2.2 N
2943 134 6 VCP MAY 1980 100% 3.3 N
2944 269 6 VCP MAY 1980 100% 3.3 N
3107 79 21 RCP MAY 1973 100% 2.8 N
3141 172 21 RCP MAY 1973 100% 2.8 N
3307 321 18 VCP MAY 1973 100% 1.4 N
3786 92 6 VCP APR 1974 100% 1.1 N
3840 313 21 RCP MAY 1973 81% 2.7 N
4074 324 12 VCP AUG 1978 100% 2.2 N
35335 244 8 VCP JUN 1955 100% 2.2 N
44822 18 12 VCP SEP 1983 100% 0.1 N
56895 248 12 VCP OCT 1983 100% 1.3 N
57692 26 27 PVC NOV 2000 100% 0.7 N
60679 52 6 VCP MAY 1980 100% 3.4 N
61062 174 8 PVC JAN 1998 100% 0.4 N
63351 18 16 CIP JUN 1955 100% 0.5 Y
63352 1113 15 VCP JUN 1955 100% 0.5 N
63404 6 30 DIP SEP 1985 100% 3.1 N
63482 234 18 VCP AUG 1978 100% 1.3 N
63490 312 18 VCP AUG 1978 100% 1.3 Y
63500 273 12 VCP AUG 1978 100% 0.4 Y
64106 31 12 DIP JUN 1978 100% 0.4 N
~ w
U S
111 w
~ Q r r N
~p w
N V Q Q C En D
Q C 8a
3v o°'02 Lx d~ r 4€s
0 1D
N o a vl U CO Q
Z C14 °m °m °v o 3 m Z a _
N W Z a n o n v U U33 z
X} 'a a a a a a yy in U ~l 3
W J 1 / f O T ❑ L..J ❑ I
S
~l
J
h
J
V
/
4
1 U poE
r~•.✓~~~„~ffi~vr ab54 J_... J
a i
• ~ ~ ~ _V Apo ~L ~ ~fi 3 -rr .
• ~ R 1 i, , ~ ^ . ~ sue. ' ~ r ~
~ 7Y mho ~ t`~ - ~y • ` ~.,~tt0~' ~ • , ~
54 -V♦~
ems . \ t: ~
1. Q
C~
pG
Ep p
4~S YSp~p
J
l JNNN~eoes
OiJ fl33tIJ ~1 ~
U
U5
r
e
O%WLLXLL S31110VdV0OLOZWaA CLOIi Z"ML\dVHDUM5 O0dVMaSOMM NOIIVIS 3031100 ZOSDCLNMA N31WMONIN33NION35V11V0 LSOLd3a~ 311d
EXHIBIT B
Pipes that are in the range of 60 to 79% of capacity were also identified, as shown on Figure 13
and listed in Table 16. A total length of 19,961 ft (3.8 mi) has the potential of exceeding critical
capacity as growth occurs.
TABLE 16: EXISTING PIPES AT 60 to 79% CAPACITY (YEAR 2010)
Pipe Capacity SSO RISK
FEATURE-ID LENGTH (ft) DIA (in) installed Velocity (fps)
Type N (Y OR IN)
65 108 21 RCP MAY 1973 77% 3.4 N
69 167 18 VCP MAY 1973 64% 1.7 N
98 558 27 RCP MAY 1973 66% 3.3 N
99 128 27 RCP MAY 1973 67% 3.3 N
100 253 27 RCP MAY 1973 66% 3.3 N
133 411 15 VCP MAY 1984 79% 0.7 N
203 281 6 PVC 78% 3.2 N
285 295 12 VCP AUG 1978 61% 3.7 N
424 124 10 CIP MAY 1973 63% 1.9 N
705 502 24 RCP MAY 1973 60% 3.4 N
722 260 21 RCP MAY 1973 76% 3.0 N
723 113 21 RCP MAY 1973 66% 2.8 N
755 702 21 RCP MAY 1973 73% 3.3 N
854 884 24 RCP MAY 1973 61% 3.4 N
1271 333 12 VCP JUN 1955 62% 1.8 N
1290 157 21 RCP MAY 1973 77% 3.3 N
1632 494 27 RCP MAY 1973 67% 3.3 N
2438 504 18 VCP MAY 1986 61% 0.9 N
2596 327 8 VCP JUN 1955 64% 2.9 Y
2605 360 10 VCP JUN 1955 69% 1.7 N
2606 287 10 VCP JUN 1955 64% 2.3 N
2679 70 12 VCP AUG 1978 66% 3.4 N
2680 296 12 VCP AUG 1978 61% 3.5 N
2697 140 18 VCP AUG 1978 62% 1.9 N
2889 183 10 VCP JUN 1955 72% 2.8 N
2946 99 6 VCP 77% 3.2 N
2947 221 6 PVC 77% 3.2 N
3102 220 21 RCP MAY 1973 77% 3.3 N
3108 173 21 RCP MAY 1973 72% 2.8 N
3117 125 21 RCP MAY 1973 66% 2.7 N
3118 158 21 RCP MAY 1973 75% 2.7 N
3119 731 21 RCP MAY 1973 73% 3.1 N
3138 436 21 RCP MAY 1973 75% 3.0 N
3139 104 21 RCP MAY 1973 78% 3.4 N
3143 114 21 RCP MAY 1973 72% 2.8 N
3310 201 18 VCP MAY 1973 60% 2.1 N
EXHIBIT B
TABLE 16: EXISTING PIPES AT 60 to 79% CAPACITY (YEAR 2010)
Pipe Capacity 0 RISK
FEATURE-11) LENGTH (ft) DIA (in) Installed Velocity (fps)
Type N (Y OR IN)
3336 195 15 VCP JUN 1955 60--/, 0.4 Y
3359 647 27 RCP MAY 1973 60% 3.7 N
3360 672 27 RCP MAY 1973 61% 3.8 N
3669 590 10 VCP JUN 1955 78% 1.5 N
3670 355 8 VCP JUN 1955 77% 2.4 N
3817 294 24 RCP MAY 1973 67% 3.1 N
4036 462 21 RCP MAY 1973 73% 3.3 N
35253 328 18 VCP MAY 1973 63% 2.1 N
50439 668 27 RCP MAY 1973 62% 3.6 N
59329 189 24 RCP MAY 1973 70% 2.9 N
59602 975 18 VCP MAY 1973 61% 2.2 Y
59603 85 18 VCP MAY 1973 61% 2.2 N
59609 777 24 RCP MAY 1973 60% 3.4 N
59611 320 8 VCP JUN 1955 62% 2.7 N
59613 310 6 PVC OCT 1992 78% 3.8 N
59614 344 6 PVC 78% 3.2 N
60680 18 6 CIP MAY 1980 64% 3.4 N
60737 132 6 VCP JAN 1981 71% 1.4 N
63396 132 42 RCP OCT 1996 71% 2.0 N
63405 338 27 RCP MAY 1973 76% 3.4 N
63407 631 27 RCP MAY 1973 67% 3.9 N
63408 24 27 RCP MAY 1973 67% 3.3 N
63410 22 27 RCP MAY 1973 68% 3.3 N
63411 41 27 RCP MAY 1973 60% 3.7 N
63413 24 27 RCP MAY 1973 60% 3.8 N
63416 36 27 RCP MAY 1973 61% 3.7 N
63418 19 27 RCP MAY 1973 60% 3.4 N
63425 9 21 RCP 78% 2.8 Y
63426 36 21 DIP 67% 2.8 Y
63435 75 18 VCP MAY 1973 63% 2.1 Y
63437 130 18 VCP MAY 1973 63% 2.1 N
63506 87 27 RCP MAY 1973 61% 3.7 N
63508 146 27 RCP MAY 1973 62% 3.7 N
63938 191 21 RCP MAY 1973 75% 3.4 N
63939 136 21 RCP MAY 1973 76% 3.3 N
EXHIBIT B
There are a number of existing pipes with low velocities below 2 fps in the peak dry weather flow
condition that could affect the self-cleaning of the pipes. Yearly pipe flushing should be conducted
in areas where there are low velocities to prevent clogging due to solids or grease.
4.3.3 Existing Sewered System with Future Growth - Year 2030
For this analysis, the future extensions and the year 2030 loading from the existing and future
growth areas were included in the analysis to identify the pipe segments in the existing service
area that would reach or exceed 80% capacity, as shown on Figure 14. The total length of pipe
meeting the capacity criteria increases by 41,661 ft (7.9 mi) from 2010 to 2030. These additional
pipe segments are listed in Table 17.
TABLE 17: EXISTING PIPES AT OR ABOVE 80% CAPACITY (YEAR 2030)
SSO
LENGTH DtA Pipe Capacity Velocity 11
FEATURE ID Installed RISK
(in) Type
65 108 21 RCP MAY 1973 100% 6.0 Y
98 558 27 RCP MAY 1973 100% 4.6 Y
99 128 27 RCP MAY 1973 100% 4.6 Y
100 253 27 RCP MAY 1973 100% 4.6 Y
123 490 18 PVC NOV 1987 100% 5.8 Y
124 399 18 PVC NOV 1987 100% 5.8 Y
125 497 18 PVC NOV 1987 100% 5.8 Y
126 491 18 PVC NOV 1987 100% 5.8 Y
127 515 18 PVC NOV 1987 100% 5.8 Y
128 583 18 PVC NOV 1987 100% 5.8 Y
129 486 18 PVC NOV 1987 100% 5.8 N
133 411 15 VCP MAY 1984 100% 1.6 N
197 400 18 PVC NOV 1987 100% 5.8 N
285 295 12 VCP AUG 1978 100% 3.7 N
289 281 12 VCP AUG 1978 100% 3.7 N
705 502 24 RCP MAY 1973 100% 4.6 N
722 260 21 RCP MAY 1973 100% 6.0 Y
723 113 21 RCP MAY 1973 100% 6.0 Y
755 702 21 RCP MAY 1973 100% 5.7 Y
854 884 24 RCP MAY 1973 100% 4.8 Y
974 271 18 PVC NOV 1987 100% 4.8 Y
975 159 18 PVC NOV 1987 100% 4.8 Y
976 208 18 PVC NOV 1987 100% 4.8 Y
979 220 18 PVC NOV 1987 81% 4.8 Y
980 167 18 PVC NOV 1987 100% 4.8 Y
981 249 18 PVC NOV 1987 100% 4.8 Y
EXHIBIT B
TABLE 17: EXISTING PIPES AT OR ABOVE 80% CAPACITY (YEAR 2030)
SSO,
Pipe Installed p,
FEATURE ID LENGTH DIA R (in) Type N (fps) (Y OR N)
982 620 18 PVC NOV 1987 100% 4.8 Y
983 163 18 PVC NOV 1987 100% 4.8 Y
984 431 18 PVC NOV 1987 100% 4.8 Y
1033 451 18 PVC NOV 1987 100% 4.8 Y
1034 498 18 PVC NOV 1987 100% 4.8 Y
1035 573 18 PVC NOV 1987 100% 4.8 Y
1036 499 18 PVC NOV 1987 100% 4.8 Y
1037 119 18 PVC NOV 1987 100% 4.8 Y
1059 516 18 PVC NOV 1987 100% 4.9 Y
1060 539 18 PVC NOV 1987 100% 4.9 Y
1062 398 18 PVC NOV 1987 100% 4.9 Y
1063 536 18 PVC NOV 1987 100% 4.9 Y
1597 743 21 URC AUG 1978 100% 3.0 N
1598 582 21 URC AUG 1978 100% 3.0 N
1599 419 21 URC AUG 1978 100% 3.0 N
1600 431 21 URC AUG 1978 100% 3.0 N
1601 319 21 URC AUG 1978 100% 3.0 N
1602 189 21 URC AUG 1978 100% 3.0 N
1604 179 21 URC AUG 1978 100% 3.0 N
1605 474 21 URC AUG 1978 100% 3.0 N
1614 846 21 URC AUG 1978 100% 3.0 N
1631 153 27 RCP MAY 1973 100% 4.9 N
1632 494 27 RCP MAY 1973 100% 4.9 N
1667 703 27 RCP MAY 1973 100% 4.7 Y
2270 533 21 URC AUG 1978 100% 3.0 N
2359 86 18 PVC NOV 1987 100% 4.8 Y
2596 327 8 VCP JUN 1955 100% 3.6 Y
2605 360 10 VCP JUN 1955 100% 2.7 N
2606 287 10 VCP JUN 1955 100% 2.7 N
2679 70 12 VCP AUG 1978 100% 3.7 N
2680 296 12 VCP AUG 1978 100% 3.7 N
2697 140 18 VCP AUG 1978 100% 1.9 N
2889 183 10 VCP JUN 1955 100% 2.7 N
2943 134 6 VCP MAY 1980 100% 3.2 N
2944 269 6 VCP MAY 1980 100% 3.2 N
3107 79 21 RCP MAY 1973 100% 6.0 Y
3108 173 21 RCP MAY 1973 100% 6.0 Y
3114 14 21 RCP MAY 1973 100% 5.7 N
3117 125 21 RCP MAY 1973 100% 5.8 Y
3118 158 21 RCP MAY 1973 100% 5.8 Y
EXHIBIT B
TABLE 17: EXISTING PIPES AT OR ABOVE 80% CAPACITY (YEAR 2030)
•
LENGTH e Capacity Velocity
r Type Installed RISK
OR
3119 731 21 RCP MAY 1973 100% 5.7 Y
3138 436 21 RCP MAY 1973 100% 6.0 Y
3139 104 21 RCP MAY 1973 100% 6.0 Y
3143 114 21 RCP MAY 1973 100% 6.0 Y
3297 410 21 URC AUG 1978 100% 3.0 N
3298 264 21 URC AUG 1978 100% 3.0 N
3310 201 18 VCP MAY 1973 100% 2.1 N
3314 608 18 VCP MAY 1973 100% 2.1 N
3359 647 27 RCP MAY 1973 100% 4.6 Y
3360 672 27 RCP MAY 1973 100% 4.7 Y
3420 576 36 RCP SEP 1985 100% 2.0 N
3669 590 10 VCP JUN 1955 100% 2.4 Y
3670 355 8 VCP JUN 1955 100% 3.6 Y
3798 248 24 RCP MAY 1973 100% 4.6 Y
3815 156 24 RCP MAY 1973 100% 4.6 N
3816 239 24 DIP APR 1997 100% 4.6 Y
3817 294 24 RCP MAY 1973 100% 4.6 Y
3845 301 15 VCP MAY 1973 100% 4.4 Y
3919 826 15 VCP MAY 1973 100% 4.5 Y
4036 462 21 RCP MAY 1973 100% 5.7 Y
35560 260 18 PVC NOV 1987 100% 4.8 Y
45095 267 18 PVC NOV 1987 100% 4.9 Y
45096 195 18 PVC NOV 1987 100% 4.9 Y
50439 668 27 RCP MAY 1973 100% 4.6 Y
52262 295 18 PVC NOV 1987 100% 4.9 Y
52263 247 18 PVC NOV 1987 100% 4.9 Y
55296 456 8 PVC SEP 2005 100% 3.8 Y
55297 163 8 PVC SEP 2005 100% 3.8 Y
55301 238 8 PVC SEP 2005 100% 3.8 Y
55323 100 8 PVC SEP 2005 100% 3.8 Y
55326 374 8 DIP SEP 2005 100% 3.7 Y
57692 26 27 PVC NOV 2000 100% 1.5 N
59328 475 24 RCP MAY 1973 100% 4.7 Y
59329 189 24 RCP MAY 1973 100% 4.8 Y
59330 209 24 DIP JUL 2008 100% 4.8 Y
59346 532 15 VCP MAY 1984 100% 2.5 N
59353 207 16 PVC APR 2007 100% 3.9 Y
59354 327 15 VCP MAY 1973 100% 4.4 Y
59609 777 24 RCP MAY 1973 100% 4.8 Y
59611 320 8 VCP JUN 1955 100% 3.4 N
EXHIBIT B
TABLE 17: EXISTING PIPES AT OR ABOVE 80% CAPACITY (YEAR 2030)
•
LENGTH DIA Pipe Capacity Velocity
FEATURE-ID Installed RISK
(ft) (i n) Type N (fps)
61142 60 24 RCP MAY 1973 100% 4.8 N
61143 66 27 RCP MAY 1973 100% 3.8 Y
61328 435 42 RCP OCT 1996 82% 2.9 N
63396 132 42 RCP OCT 1996 100% 2.6 N
63404 6 30 DIP SEP 1985 100% 5.0 N
63405 338 27 RCP MAY 1973 100% 4.9 Y
63406 30 30 CIP MAY 1973 100% 4.0 Y
63407 631 27 RCP MAY 1973 100% 4.9 Y
63408 24 27 RCP MAY 1973 100% 4.6 Y
63409 36 30 CIP MAY 1973 100% 3.7 Y
63410 22 27 RCP MAY 1973 100% 4.6 Y
63411 41 27 RCP MAY 1973 100% 4.6 Y
63412 36 30 CIP MAY 1973 100% 3.7 Y
63413 24 27 RCP MAY 1973 100% 4.6 Y
63414 144 30 CIP MAY 1973 82% 3.7 Y
63416 36 27 RCP MAY 1973 100% 4.6 Y
63417 144 30 CIP MAY 1973 82% 3.7 Y
63418 19 27 RCP MAY 1973 100% 4.6 Y
63419 186 24 RCP MAY 1973 100% 4.6 Y
63420 126 24 CIP MAY 1973 100% 4.6 Y
63421 144 24 RCP MAY 1973 100% 4.6 Y
63425 9 21 RCP 100% 5.7 Y
63426 36 21 DIP 100% 5.7 Y
63428 114 21 RCP MAY 1973 100% 2.5 Y
63430 158 21 RCP MAY 1973 100% 2.5 Y
63470 42 21 URC AUG 1978 100% 3.0 N
63471 30 20 DIP AUG 1978 100% 3.3 Y
63472 93 21 URC AUG 1978 100% 3.0 Y
63506 87 27 RCP MAY 1973 100% 4.6 Y
63508 146 27 RCP MAY 1973 100% 4.6 Y
63928 18 18 PVC NOV 1987 100% 5.8 Y
63929 310 18 PVC NOV 1987 100% 5.8 Y
63930 10 18 PVC NOV 1987 100% 4.5 Y
63931 136 18 DIP NOV 1987 100% 4.5 Y
63938 191 21 RCP MAY 1973 100% 5.9 Y
63939 136 21 RCP MAY 1973 100% 5.9 Y
c U
W N v ?
HW a n~
p $
a a x
N V
Q L)~ o o ~b.d
~ a U
WQ m ~ ~ o v sax
3v g w x=as
N M a m J ea u
0 ° m° °o °v v (D FL-: ~ °
zd' ~@~~~v° d dr a3i 4) j U N
Q O
W W N m m m R> 2 ul - w U
fA n . L n U V Q 3 z Q
K c-, 'a 'a 'a 'a ¢ ¢ 5 L) in r 33 _ 2
W L-L,j tllt■• o!_J ❑
J
N
J
V
I ~
I
~ off- ,
U J ~ ~ ~e
J t~
V • i
• I }t
i ♦ ♦ , r ' to
♦ U .,es a Nauw p!,fiE~" i ♦ i• N i
ev
c tJ
~ ♦ M.ti sy 1`~j I ♦ o ~/ti -
be ~ Y- IS - j' y 1 ~ i
y ,✓cT's j, \
_ • i ~v,~ ado y
t , GN moo
k`Nkk~' ~ ~~01'~
y ~
J
DB185
E
! ANN
ON N332fJ N /11
U
Uy
x
5
OXWL IXII 531110tldtl0 GEOZ W3A Ol'JIf LYSOC 4\dtlW~NMS~OOdtlW\3S~MM NOIIYIS 303110 Ze90[IVrIN N31VM\'JNItl33N~9N3SYllYa [fO1d30~~~3tli
EXHIBIT B
4.3.4 Existing Sewered System with Future Growth - Build-Out
For this analysis, the future extensions and the build-out loading from the existing and future
growth areas were included to identify the pipe segments in the existing service area that would
reach or exceed 80% capacity, as shown on Figure 15. The total length of pipe meeting the
capacity criteria increases by 12,736 ft (2.4 mi) from 2030 to build-out. The additional pipe
segments are listed in Table 18.
TABLE 18: EXISTING PIPES AT OR ABVOE 80% CAPACITY (BUILD-OUT)
i Capacity • RISK
LENGTI4
FEATURE ID •R
424 124 10 CIP MAY 1973 100% 1.9 N
2946 99 6 VCP 100% 3.7 N
2947 221 6 PVC 100% 3.7 N
3876 364 18 PVC MAY 1999 100% 5.4 N
3886 237 18 PVC MAY 1999 100% 5.5 Y
3887 147 18 PVC MAY 1999 100% 5.5 N
3888 149 18 PVC MAY 1999 100% 5.5 N
3901 150 18 PVC MAY 1999 100% 5.4 Y
3902 251 18 PVC MAY 1999 100% 5.4 N
3903 302 18 PVC MAY 1999 100% 5.4 N
3915 320 18 PVC MAY 1999 100% 5.5 N
21481 291 18 PVC AUG 2005 100% 5.3 Y
22215 7 21 RCP MAY 1973 100% 7.4 Y
45128 249 15 PVC NOV 2000 100% 3.0 N
48930 100 10 VCP JUL 1981 82% 2.8 N
48933 45 10 VCP JUL 1981 100% 2.6 N
51102 261 8 PVC JAN 2004 100% 8.0 N
51103 198 8 PVC JAN 2004 100% 8.1 N
53946 452 8 VCP DEC 1983 100% 2.5 N
55298 233 8 PVC SEP 2005 100% 8.0 N
56895 248 12 VCP OCT 1983 100% 1.7 N
56927 499 12 PVC JUN 2006 100% 5.0 Y
56928 501 12 PVC JUN 2006 100% 5.1 Y
58662 167 12 PVC FEB 2006 100% 3.8 N
58665 126 12 PVC FEB 2006 100% 4.6 Y
58667 499 12 PVC FEB 2006 100% 4.7 N
58668 353 12 PVC FEB 2006 100% 4.7 N
58669 501 12 PVC FEB 2006 100% 4.7 N
58670 497 12 PVC FEB 2006 100% 4.7 N
58671 505 12 PVC FEB 2006 100% 4.7 N
58680 477 18 PVC FEB 2006 100% 4.5 Y
EXHIBIT B
TABLE 18: EXISTING PIPES AT OR ABVOE 80%a CAPACITY (BUILD-OUT)
FEATURE ID LENGTH DIA (in) • p: Type, Installed Capacity Velocity SSO RISK
OR
58686 483 18 PVC AUG 2005 100% 4.9 Y
58689 210 18 PVC AUG 2005 100% 5.3 N
58690 298 18 PVC AUG 2005 100% 5.3 N
59603 85 18 VCP MAY 1973 80% 2.0 Y
60128 222 8 PVC DEC 2007 100% 3.3 N
60129 231 8 PVC DEC 2007 100% 3.3 N
60424 88 18 PVC NOV 1987 100% 8.8 N
60674 14 10 VCP MAR 1977 82% 1.0 Y
60680 18 6 CIP MAY 1980 82% 4.6 N
61053 24 8 PVC JAN 2008 100% 1.0 N
61062 174 8 PVC JAN 1998 100% 0.7 N
61754 127 12 PVC FEB 2006 100% 4.7 N
61755 320 12 PVC FEB 2006 100% 4.6 N
62125 56 18 PVC MAY 1999 100% 5.4 Y
62126 54 18 DIP MAY 1999 100% 5.4 Y
62782 459 8 PVC APR 2009 100% 8.6 Y
62783 501 8 PVC APR 2009 100% 8.6 N
63429 90 24 CIP MAY 1973 100% 3.3 Y
63507 36 30 WSP NOV 2002 100% 4.6 Y
63993 56 18 PVC AUG 2005 100% 5.3 Y
63994 100 18 DIP AUG 2005 100% 5.3 Y
63995 112 18 PVC AUG 2005 100% 5.3 N
63996 303 18 PVC FEB 2006 100% 4.4 Y
63997 100 18 DIP FEB 2006 100% 4.5 Y
w~ a~ ~r
ul p $ a E
} V ° m m W of 5
fn m u u e q F U
wa e e 3
w¢ II r• 4'1 C N CO II rc.5a
W U ~ p p Y J N L T J °cb"z
~ L N ,
O O O O ~ y~ ~U)
/0pp, f0 '7f` pp~~ C J 3 N a ~p y[
V lJ lam/ II N a N d y U~ O O
Z o
~ J Z n °n un L n u H~ U U U }
Wm w aa'a'a¢¢ ~~~Q a e
LLJt"f.. 000
N
J
V
Tr
♦
I n U 9F:' .
1 J .11 J . 1 EEP
_ 11 ~ ♦ ZP~
f
<aP ~S Z CO
N
♦ S
(D
♦~V r
&1 .0
Jf
4 ,44
u r IY. x 1
m Jf w~!J U ~ ~ y,,
♦ i
I r ,M U ~p ~P~ ♦ ' ` ♦ T I= r r N
2~ /
O Fp ^
e. C14
4W. 10
jF U f, 'v.,f ~j' s~♦s~r
R , J ~ , J 7
R Ja~9„~ ado "'I' \ N w
♦ V aPFO e'A~ Q
P~ CJ'
~fEPloEl
N
J
as V33UJ HanL ~
U
e
O"L-1 531113-006 S191d LV90f l~dVW~tl ASJOddVlM3SJhNA N°I1V15 3~311OJ ir90ElNAN tl31♦M1'JN1-1-3GIIVO I-d-3-
EXHIBIT B
4.4 PROJECT IDENTIFICATION
The pipes exhibiting potential capacity problems, as established from the model results (Tables
15-18), were examined to identify likely hydraulic issues under the various flow scenarios. A
problem identification and characterization process was completed to better understand the
extent of these problems.
4.4.1 Problem Identification
The hydraulic problems were separated into two categories; Type A and Type B.
Type A problems consist of a series of problem pipes that are hydraulically connected to one
another. It should be noted not necessarily all pipe segments identified within a Type A project
exhibit capacity issues. Engineering judgment was used to include non-critical segments for
construction feasibility. Type B problems are isolated hydraulic restrictions that are not
hydraulically connected to other problem locations or series of problem pipes.
Type A problems account for 86 percent of the problem pipes or a total of 285 pipe segments with
a cumulative length of 83,438 ft (15.8 mi). Type B problems accounted for the remaining 14
percent of problem pipes or a total of 48 pipe segments with a cumulative length of 13,526 ft (2.6
mi).
Both Type A and Type B problems have estimates of capital cost prepared, conservatively
assuming pipe replacement using the pipe diameter recommended by the model analysis. It is
envisioned that Type A problems are identified as recommendations for capital improvements
while the Type B problems are addressed through coordination with development activities,
system rehabilitation and replacement R&R work, or replacement with other department CIP
projects.
EXHIBIT B
4.4.2 Problem Characterization - Type A Problem Locations
There are a total of six Type A projects that have been identified, as follows:
• Bee Creek Line
• Northeast Trunk Line
• Southwood Valley
• Lick Creek
• CC4
• CC6
These projects incorporate the future replacement projects the City had previously identified. All
Type A projects are shown on Figure 16, and described individually in the following sub-sections.
Proposed pipe diameters were determined for pipe segments exhibiting 60% and above capacity
and sized in order to maintain a maximum d/D ratio of 0.50 under dry peak flow plus 1/1 condition.
C
O
u g 'r°
Cl)
a U)
v Q .o U) a s > w a
0 O U) L U) O u' w3 LL
p 3 O Z d `~=a
d F C J~
av a Q a Q) /
a3i U _ 1 0
V
a0 Z U n W V3 r] N
w Q Q ~
HT U-)j
3 H Z r Ih.L+~ a
LLI
0
J • * Ll U O
F
J
Y
W
W
K
U
Y
U
.4
f
I
y J• 44
~
YI r U
LU J J +
J~ U a - . w pP
""t4 y C
00
m ~ J
2 J c"F"
X
W
f
M~. ~ -yam
07
V J
U
Q - 10
oo Na` yr,'a
N of ~e -
U a pa,~,uoe ~ "~"s OP
J `
\ 6 E
V s3ez ~;91"'Wy s
I • V AQ~ DO J
/00,~
1 \
~s p
bG 1 b~ ~ , ~ icy •f~ Owe ~ U y
o J
o ~e 80 ~g _
0,3
-l ~GbyNl d0 ~ ~ ~
e
y
boo h ¢
N
U
U
()XW LIXII S103fOtld V3dA1 9l'Jlj Zt90ftNVW~dV.S~DOdVI'J`3S~NNA NOI1V15 303110 ZV90C lNNT tl31VM\ONItl33NION3SV1lV0 LCUd3N13111
EXHIBIT B
4.4.3 Bee Creek Line
The Bee Creek Line runs through CC6 Sub-Basin, following approximately Harvey Mitchell Road
to the CCWWTP, as identified in Figure 17. The total proposed length of the Bee Creek Line
project is 28,134 ft (5.3 mi), and ranges in proposed diameters of 12" to 66".
VON
CC I
CC 3 ACCW*TP
y
aaF
CC2_ -Begin Phase 1
CC 4
CC 5 CC 8
CC 9
4
SL CC 6 \ CC 7
SLS -
F: End Phase 1
Begin Phase 2
yt` LS3
ED
s
LS2
LC 1 0
ML End Phase 2 LC 2 LC 3
` LC 4
FIGURE 17: BEE CREEK LINE LOCATION
Critical capacity issues (greater than 80% capacity used) are already occurring at several pipe
segments along this route with the 2010 model run. The capacity issues only intensify with the
2030 and build-out model runs as growth and/or redevelopment occurs within this drainage basin.
The City has expressed that the CC6 Sub-Basin has numerous developments already in
progress, or will occur in the near future. To accommodate these developments, the project has
been divided into two phases. Bee Creek Line Phase 1 runs 3.6 miles from the CCWWTP to
Welsh Rd. Bee Creek Line Phase 2 runs 1.7 miles from Welsh Rd to west of Wellborn Rd, along
hDR Page 155
(,I IY C1F (:(11 AJS(:F. $ iA'll( W
elr A.n.Jdr R.rwnd V.Bq
EXHIBIT B
Cain Rd. The pipe segments that comprise the Bee Creek Line Phase 1 and Phase 2 are listed in
Tables 19 and 20, respectively. The proposed pipe diameters shown represent replacement
diameters.
TABLE 19: BEE CREEK LINE PHASE 1 CAPACITIES
Existing Year2010 Year 2030 Build-Out 2030 Build-Out
FEATURE-ID Length Dia Installed Capacity Capacity Capacity Proposed Proposed
65 108 21 MAY 1973 77% 100% 100% 36 48
98 558 27 MAY 1973 66% 100% 100% 48 48
99 128 27 MAY 1973 67% 100% 100% 48 48
100 253 27 MAY 1973 66% 100% 100% 48 48
177 60 21 MAY 1973 100% 100% 100% 48 48
705 502 24 MAY 1973 60% 100% 100% 36 48
722 260 21 MAY 1973 76% 100% 100% 36 48
723 113 21 MAY 1973 66% 100% 100% 36 48
755 702 21 MAY 1973 73% 100% 100% 36 48
854 884 24 MAY 1973 61% 100% 100% 48 48
1283 245 21 MAY 1973 100% 100% 100% 48 48
1290 157 21 MAY 1973 77% 100% 100% 36 48
1618 308 24 MAY 1982 48% 37% 61% 24 24
1630 146 27 MAY 1973 100% 100% 100% 48 48
1631 153 27 MAY 1973 56% 100% 100% 48 48
1632 494 27 MAY 1973 67% 100% 100% 48 48
1667 703 27 MAY 1973 59% 100% 100% 48 48
2110 263 21 MAY 1973 100% 100% 100% 48 48
3102 220 21 MAY 1973 77% 100% 100% 36 48
3107 79 21 MAY 1973 100% 100% 100% 48 48
3108 173 21 MAY 1973 72% 100% 100% 36 48
3114 14 21 MAY 1973 48% 100% 100% 30 30
3117 125 21 MAY 1973 66% 100% 100% 36 48
3118 158 21 MAY 1973 75% 100% 100% 36 48
3119 731 21 MAY 1973 73% 100% 100% 36 48
3138 436 21 MAY 1973 75% 100% 100% 36 48
3139 104 21 MAY 1973 78% 100% 100% 36 48
3141 172 21 MAY 1973 100% 100% 100% 48 48
3143 114 21 MAY 1973 72% 100% 100% 36 48
3359 647 27 MAY 1973 60% 100% 100% 48 48
3360 672 27 MAY 1973 61% 100% 100% 48 48
3798 248 24 MAY 1973 55% 100% 100% 36 48
3815 156 24 MAY 1973 59% 100% 100% 36 48
EXHIBIT B
TABLE 19: BEE CREEK LINE PHASE 1 CAPACITIES
Existing Year 2010 Year 2030 Build-Out 2030 Build-Out
Capacity FEATURE-ID Length Dia Installed Capacity Capacity 3816 239 24 APR 1997 55% 100% 100% 36 48
3817 294 24 MAY 1973 67% 100% 100% 48 48
3840 313 21 MAY 1973 81% 100% 100% 48 48
3845 301 15 MAY 1973 28% 100% 100% 30 30
3919 826 15 MAY 1973 28% 100% 100% 30 30
4036 462 21 MAY 1973 73% 100% 100% 36 48
22215 7 21 MAY 1973 41% 67% 100% 24 24
44050 320 30 SEP 1985 0% 0% 0% 30 30
50439 668 27 MAY 1973 62% 100% 100% 48 48
59328 475 24 MAY 1973 56% 100% 100% 36 48
59329 189 24 MAY 1973 70% 100% 100% 48 48
59330 209 24 JUL 2008 58% 100% 100% 48 48
59353 207 16 APR 2007 21% 100% 100% 30 30
59354 327 15 MAY 1973 28% 100% 100% 30 30
59609 777 24 MAY 1973 60% 100% 100% 36 48
61142 60 24 MAY 1973 51% 100% 100% 36 48
61143 66 27 MAY 1973 50% 100% 100% 48 48
61328 435 42 OCT1996 56% 82% 100% 66 66
63396 132 42 OCT1996 71% 100% 100% 66 66
63404 6 30 SEP 1985 34% 100% 100% 96 96
63405 338 27 MAY 1973 76% 100% 100% 48 48
63406 30 30 MAY 1973 56% 100% 100% 48 48
63407 631 27 MAY 1973 67% 100% 100% 48 48
63408 24 27 MAY 1973 67% 100% 100% 48 48
63409 36 30 MAY 1973 56% 100% 100% 48 48
63410 22 27 MAY 1973 68% 100% 100% 48 48
63411 41 27 MAY 1973 60% 100% 100% 48 48
63412 36 30 MAY 1973 51% 100% 100% 48 48
63413 24 27 MAY 1973 60% 100% 100% 48 48
63414 144 30 MAY 1973 51% 82% 100% 48 48
63416 36 27 MAY 1973 61% 100% 100% 48 48
63417 144 30 MAY 1973 51% 82% 100% 48 48
63418 19 27 MAY 1973 60% 100% 100% 48 48
63419 186 24 MAY 1973 50% 100% 100% 36 48
63420 126 24 MAY 1973 50% 100% 100% 36 48
63421 144 24 MAY 1973 50% 100% 100% 36 48
63425 9 21 78% 100% 100% 36 48
63426 36 21 67% 100% 100% 36 48
EXHIBIT B
TABLE 19: BEE CREEK LINE PHASE 1 CAPACITIES
Existing Year 2010 Year 2030 Build-Out 2030 Build-Out
Capacity FEATURE-ID Length Dia Installed Capacity Capacity 63427 33 21 40% 65% 80% 30 36
63428 114 21 MAY 1973 33% 100% 100% 36 36
63429 90 24 MAY 1973 27% 80% 100% 36 36
63430 158 21 MAY 1973 33% 100% 100% 36 36
63506 87 27 MAY 1973 61% 100% 100% 48 48
63507 36 30 NOV 2002 49% 78% 100% 48 48
63508 146 27 MAY 1973 62% 100% 100% 48 48
63938 191 21 MAY 1973 75% 100% 100% 36 48
63939 136 21 MAY 1973 76% 100% 100% 36 48
EXHIBIT B
TABLE 20: BEE CREEK LINE PHASE 2 CAPACITIES
2030 Build-Out
Existing Year 2010 Year 2030 Build-Out
Length .Proposed Proposed
Capacity
FEATURE ID Dia Installed Capacity Capacity 3876 364 18 MAY 1999 18% 75% 100% 18 30
3886 237 18 MAY 1999 18% 74% 100% 18 30
3887 147 18 MAY 1999 16% 63% 100% 18 30
3888 149 18 MAY 1999 17% 71% 100% 18 30
3901 150 18 MAY 1999 17% 70% 100% 18 30
3902 251 18 MAY 1999 18% 74% 100% 18 30
3903 302 18 MAY 1999 18% 75% 100% 18 30
3915 320 18 MAY 1999 18% 75% 100% 18 30
21481 291 18 AUG 2005 13% 59% 100% 18 30
56921 436 12 JUN 2006 9% 24% 67% 12 12
56922 123 12 JUN 2006 9% 24% 68% 12 12
56923 151 12 JUN 2006 10% 26% 77% 12 12
56924 366 12 JUN 2006 10% 30% 73% 12 12
56925 508 12 JUN 2006 10% 32% 76% 12 12
56926 492 12 JUN 2006 9% 29% 66% 12 12
56927 499 12 JUN 2006 12% 32% 100% 12 18
56928 501 12 JUN 2006 12% 34% 100% 12 18
56929 476 12 JUN 2006 10% 26% 69% 12 18
58677 291 18 AUG 2005 11% 46% 73% 18 30
58680 477 18 FEB 2006 13% 54% 100% 18 30
58686 483 18 AUG 2005 13% 56% 100% 18 30
58687 499 18 AUG 2005 11% 44% 69% 18 30
58689 210 18 AUG 2005 13% 58% 100% 18 30
58690 298 18 AUG 2005 12% 56% 100% 18 30
59705 45 18 MAY 1999 12% 45% 63% 18 21
62125 56 18 MAY 1999 17% 68% 100% 24 30
62126 54 18 MAY 1999 18% 73% 100% 30 30
63345 20 12 JUN 2006 9% 25% 61% 12 12
63993 56 18 AUG 2005 13% 58% 100% 18 30
63994 100 18 AUG 2005 14% 62% 100% 18 30
63995 112 18 AUG 2005 13% 59% 100% 18 30
63996 303 18 FEB 2006 13% 42% 100% 18 30
63997 100 18 FEB 2006 13% 56% 100% 18 30
EXHIBIT B
4.4.4 Southwood Valley Line
The Southwood Valley Line runs through CC7 Sub-Basin, following in between Deacon Drive and
Harvey Mitchell Road, as shown in Figure 18. The total proposed length of the project is 6,400 ft
(1.2 mi), and ranges in proposed diameters of 24" to 30". The Southwood Valley Line ties into the
Bee Creek Line just north of where Deacon Drive and Harvey Mitchell Road intersect, at Highway
6.
5
CC 4
Begin
C 6 Southwood
Valley Line
Bee Creek Line
Phase 1
N z
CC 6
CC 7
b'
End Southwood, '
Valley
I °'r l
0
7
'r Fly
FIGURE 18: SOUTHWOOD VALLEY LINE LOCATION
Page 160
C,I IY ()F (;!)IIF.(:I.$TAIIlIY
~ e6r Avr.Jdr Fneedr !'~"7
EXHIBIT B
Along this route, many pipe segments have used 60 to 79% capacity, as shown in Table 21.
While the pipe segments are not showing critical at the time of this report (at or greater than 80%
capacity used), the capacity decreases with the 2030 and build-out model runs.
TABLE 21: SOUTHWOOD VALLEY LINE CAPACITIES
2030 Build-Out
FEATURE LENGTH Existing YearMV Year203O Build-Out a Capacity Capacity
Proposed Proposed
(in) (in
68 277 18 MAY 1973 51% 54% 58% 18 18
69 167 18 MAY 1973 64% 68% 75% 24 24
1811 95 18 MAR 1974 29% 30% 32% 18 18
2104 154 18 MAY 1973 56% 65% 66% 24 24
3049 171 18 MAY 1973 54% 60% 63% 24 24
3050 273 18 MAY 1973 55% 61% 64% 24 24
3051 130 18 MAY 1973 51% 57% 59% 18 18
3068 386 18 MAR 1974 38% 39% 42% 18 18
3069 254 18 MAY 1973 45% 49% 52% 18 18
3156 172 18 MAR 1974 38% 39% 42% 18 18
3157 154 18 MAR 1974 37% 38% 41% 18 18
3158 211 18 MAR 1974 59% 62% 68% 24 24
3689 165 18 MAY 1973 51% 57% 60% 18 18
3690 280 18 MAY 1973 57% 64% 68% 24 24
35253 328 18 MAY 1973 63% 73% 76% 30 30
59099 200 18 SEP 1990 50% 59% 63% 18 24
59601 143 18 MAY 1973 44% 50% 51% 18 18
59602 975 18 MAY 1973 61% 74% 80% 24 24
59603 85 18 MAY 1973 61% 74% 80% 24 24
63431 163 18 MAY 1973 45% 48% 51% 18 18
63432 19 18 MAY 1973 41% 44% 47% 18 18
63433 143 18 MAY 1973 51% 57% 59% 18 18
63434 234 18 MAY 1973 56% 62% 64% 24 24
63435 75 18 MAY 1973 63% 73% 76% 30 30
63436 36 18 MAY 1973 58% 66% 68% 24 24
63437 130 18 MAY 1973 63% 74% 76% 30 30
63457 60 18 MAY 1973 43% 50% 53% 18 18
63458 922 18 MAY 1973 57% 68% 72% 24 30
The total proposed length of the Southwood Valley Line is 6,400 ft (1.2 mi). While the pipe
segments are not showing critical at the time of this report (greater than 80% capacity used), the
capacity decreases with the 2030 and build-out model runs.
EXHIBIT B
,~ll •
4.4.5 Northeast Trunk Line
The Northeast Trunk Line is currently experiencing capacity issues nearest the CCWWTP and not
in the northern portion of the line. For that reason, this project has been broken into two phases.
Phase 1 is from the CCWWTP to Harvey Mitchell Road. Phase 2 is from Harvey Mitchell Road
northeast along the edge of the CCN within CC1 Sub-Basin. Both phases are shown on
Figure 19.
1A.- 30
24
.'0 lop
N0 Cc 1 30
^0 +'70 3
End Phase 2
End Phase 1'
Begin NE Trunk Phase 2
CC 2
Begin NE Trunk Phase 1 ~s
CC 3
'r. ccc:
CC 6 CC 4
FIGURE 19: NE TRUNK LINE PHASE 1 AND PHASE 2 LOCATION
The total length of pipe is 23,134 ft (4.4 mi). Of the total length, Phase 1 is 9,855 ft (1.9 mi) and
Phase 2 is 13,279 ft (2.5 mi). The existing diameter, capacities used, and proposed diameter are
listed in Table 22 for Phase 1 and Table 23 for Phase 2.
Page 162
(.Ill' (7F (.(/1A ECE STATION
~ .M Mn1JAw R.vmf Lif17
EXHIBIT B
TABLE 22: NE TRUNK LINE PHASE 1 CAPACITIES
ear a Build-out
Installed LENGTH Existing 2010 Year2030 Build-Out Proposed Proposed
Capacity Capacity
Capacity 841 361 18 MAY 1973 57% 79% 78% 30 30
844 541 18 MAY 1973 100% 100% 100% 36 36
1597 743 21 AUG 1978 57% 100% 100% 36 36
1598 582 21 AUG 1978 57% 100% 100% 36 36
1599 419 21 AUG 1978 57% 100% 100% 36 36
1600 431 21 AUG 1978 57% 100% 100% 36 36
1601 319 21 AUG 1978 57% 100% 100% 36 36
1602 189 21 AUG 1978 57% 100% 100% 30 30
1604 179 21 AUG 1978 56% 100% 100% 30 30
1605 474 21 AUG 1978 51% 100% 100% 30 30
1613 557 36 NOV 1993 33% 44% 44% 36 36
1614 846 21 AUG 1978 56% 100% 100% 30 30
2270 533 21 AUG 1978 57% 100% 100% 36 36
2423 173 18 MAY 1973 54% 74% 73% 36 36
3297 410 21 AUG 1978 57% 100% 100% 36 36
3298 264 21 AUG 1978 58% 100% 100% 36 36
3307 321 18 MAY 1973 100% 100% 100% 30 30
3309 115 18 MAY 1973 41% 53% 53% 18 18
3310 201 18 MAY 1973 60% 100% 100% 24 24
3313 978 36 NOV 1993 25% 35% 35% 36 36
3315 306 18 MAY 1973 50% 66% 65% 18 18
3348 29 18 MAY 1973 42% 55% 55% 18 18
3349 143 18 MAY 1973 45% 59% 59% 18 18
3420 576 36 SEP 1985 59% 100% 100% 54 54
63470 42 21 AUG 1978 57% 100% 100% 36 36
63471 30 20 AUG 1978 56% 100% 100% 36 36
63472 93 21 AUG 1978 58% 100% 100% 36 36
EXHIBIT B
TABLE 23: NE TRUNK LINE PHASE 2 CAPACITIES
06 Build•
Build-Out
PEATURE ID Di I a Installed Capacity Capacity Capacity Proposed Proposed
278 252 18 AUG 1978 54% 73% 70% 24 24
282 483 18 OCT 1985 48% 59% 60% 18 18
285 295 12 AUG 1978 61% 100% 100% 18 18
289 281 12 AUG 1978 59% 100% 100% 18 18
1397 284 18 AUG 1978 41% 50% 50% 18 18
1400 357 18 OCT1985 40% 48% 48% 18 18
1403 691 18 AUG 1978 56% 71% 71% 24 24
1422 499 18 AUG 1978 52% 66% 66% 24 24
1423 565 18 AUG 1978 53% 67% 67% 24 24
1504 454 21 AUG 1978 53% 66% 66% 30 30
1506 468 21 JUN 1978 52% 65% 65% 30 30
1507 605 21 JUN 1978 54% 68% 68% 30 30
2421 497 18 OCT1985 33% 40% 40% 18 18
2672 208 12 AUG 1978 55% 74% 72% 18 18
2673 133 12 AUG 1978 52% 70% 68% 18 18
2675 302 12 AUG 1978 54% 72% 70% 18 18
2677 220 12 AUG 1978 53% 71% 69% 18 18
2680 296 12 AUG 1978 61% 100% 100% 18 18
2691 646 18 AUG 1978 57% 73% 73% 24 24
2695 224 18 AUG 1978 44% 57% 56% 18 18
2696 121 18 AUG 1978 54% 68% 68% 24 24
2697 140 18 AUG 1978 62% 100% 100% 24 24
2963 585 21 AUG 1978 53% 66% 66% 30 30
2971 357 21 JUN 1978 52% 66% 66% 30 30
2972 166 21 JUN 1978 53% 66% 66% 30 30
2973 178 21 JUN 1979 52% 64% 65% 30 30
49978 192 24 SEP 2003 39% 47% 47% 24 24
49979 317 24 SEP 2003 37% 46% 45% 24 24
56436 474 24 JUL 2006 32% 38% 38% 24 24
59555 800 21 AUG 1978 51% 63% 63% 30 30
63476 689 21 AUG 1978 55% 69% 70% 30 30
63477 60 30 OCT 2006 30% 36% 36% 30 30
63478 176 21 AUG 1978 55% 69% 70% 30 30
63482 234 18 AUG 1978 100% 100% 100% 30 30
63483 54 18 AUG 1978 30% 36% 36% 18 18
63487 438 18 AUG 1978 56% 71% 71% 24 24
63489 97 12 AUG 1978 42% 55% 53% 12 18
63490 312 18 AUG 1978 100% 100% 100% 36 36
63492 127 18 AUG 1978 52% 66% 66% 24 24
EXHIBIT B
4.4.6 Lick Creek Line
The Lick Creek Trunk Line runs through LC7 Sub-Basin from William D Fitch Parkway to the
LCWWTP, as shown on Figure 20.
~ g a° »xY,~~r
S-
y.~ ~~C~q,L~RD ~MkS e~~Ci v
End Lick
Ifs - Creek.
I U
° Begin Lick
7 } g AF
Creek Line
z s LCUIL WWP
o 0 04' r4
'i w aMy y6,s to
~ ~A6tA(y60 CT
gyY)gICR££K OR 01 10 CN
FIGURE 20: LICK CREEK LINE LOCATION
This proposed project has a total length of 12,273 ft (2.3 mi). Currently, this length of pipe has
used 40 to 59% of its capacity so no improvements need to be performed at this time. However,
as growth occurs in LC7X in the future, and future extensions are tied into this trunk line at
William D Fitch Parkway, the capacity will need to be increased. Capacities and proposed
replacement diameters are listed in Table 24.
Page 165
C]Urv cu col LF.(;F. STN 1(1%*
♦ ,e. s,~ ad. ~ v a~
EXHIBIT B
TABLE 24: LICK CREEK LINE CAPACITIES
2030 Build-Out
Existi 0t Year203O Build-Out i
Proposed Proposed
FEATURE LENGTH 'g
a0acfty Capacity Capacity
(in) NO M N (in) (in
123 490 18 NOV 1987 49% 100% 100% 30 30
124 399 18 NOV 1987 49% 100% 100% 30 30
125 497 18 NOV 1987 49% 100% 100% 30 30
126 491 18 NOV 1987 49% 100% 100% 30 30
127 515 18 NOV 1987 50% 100% 100% 30 30
128 583 18 NOV 1987 49% 100% 100% 30 30
129 486 18 NOV 1987 49% 100% 100% 30 30
197 400 18 NOV 1987 49% 100% 100% 30 30
974 271 18 NOV 1987 44% 100% 100% 30 30
975 159 18 NOV 1987 41% 100% 100% 30 30
976 208 18 NOV 1987 44% 100% 100% 30 30
979 220 18 NOV 1987 40% 81% 100% 30 30
980 167 18 NOV 1987 49% 100% 100% 30 30
981 249 18 NOV 1987 43% 100% 100% 30 30
982 620 18 NOV 1987 44% 100% 100% 30 30
983 163 18 NOV 1987 42% 100% 100% 30 30
984 431 18 NOV 1987 44% 100% 100% 30 30
1033 451 18 NOV 1987 44% 100% 100% 30 30
1034 498 18 NOV 1987 44% 100% 100% 30 30
1035 573 18 NOV 1987 44% 100% 100% 30 30
1036 499 18 NOV 1987 44% 100% 100% 30 30
1037 119 18 NOV 1987 44% 100% 100% 30 30
1059 516 18 NOV 1987 45% 100% 100% 30 30
1060 539 18 NOV 1987 45% 100% 100% 30 30
1062 398 18 NOV 1987 44% 100% 100% 30 30
1063 536 18 NOV 1987 45% 100% 100% 30 30
2359 86 18 NOV 1987 45% 100% 100% 30 30
35560 260 18 NOV 1987 45% 100% 100% 30 30
45095 267 18 NOV 1987 45% 100% 100% 30 30
45096 195 18 NOV 1987 43% 100% 100% 30 30
52262 295 18 NOV 1987 44% 100% 100% 30 30
52263 247 18 NOV 1987 49% 100% 100% 30 30
63929 310 18 NOV 1987 510/( 100% 100% 30 30
63931 136 18 NOV 1987 48% 100% 100% 30 30
EXHIBIT B
4.4.7 CC4 Line
The CC4 Line project has been identified due to capacity issues in numerous pipe segments
along this route which conveys flow from CC4 Sub-Basin. The CC4 Line starts at Central Park
Lane, crosses Krenek Tap Road, goes under Hwy 6, and then follows Spring Creek Road towards
CCWWTP. The CC4 Line ties into the Bee Creek Line prior to reaching CCWWTP. The location
is shown in Figure 21.
CC 3
CLLtdpgYTP
Begin CC4
Line with
End CC4 tie-in to Bee
Line Creek Line
t
NO
's ~ ap
CC 5 CC 4
Bee Creek
~g cc e
78 Line
CC 9
cc .6
FIGURE 21: CC4 LINE LOCATION
The total length of the CC4 Line is 9,646 ft (1.8 mi). The only capacity shown in the existing
condition model run is the pipe segment that crosses underneath Highway 6. There is an adverse
slope condition that exists here. Otherwise, the capacity issues in this line occur at 2030 and
build-out conditions. The capacities and proposed replacement diameters are listed in Table 25.
Page 167
livcCcUarx:r: SrannN
laq I
EXHIBIT B
TABLE 25: CC4 LINE CAPACITIES
i
010 Year203O Build-Out
FEATURE DDia Installed Capacity Capacity Capacity
92 176 10 JUL 1981 42% 51% 67% 10 15
95 497 15 JUN 1955 36% 44% 56% 15 18
105 357 10 JUL 1981 43% 52% 68% 10 15
173 509 10 JUL 1981 41% 49% 64% 10 15
191 238 10 JUL 1981 43% 52% 68% 10 15
699 447 10 JUL 1981 42% 50% 67% 10 15
863 320 15 JUN 1955 41% 45% 59% 15 18
864 273 15 JUN 1955 40% 44% 58% 15 18
1629 169 36 AUG 1987 58% 69% 77% 48 54
1669 398 15 JUN 1955 41% 46% 60% 15 18
2425 87 10 JUL 1981 30% 35% 44% 10 10
3351 180 36 AUG 1987 21% 24.% 26% 36 36
3352 570 30 AUG 1987 29% 33% 36% 36 36
3423 198 15 JUN 1955 35% 37% 48% 15 15
48931 86 10 JUL 1981 47% 54% 75% 10 15
48932 146 10 JUL 1981 48% 57% 79% 10 18
49777 330 15 JUN 1955 45% 49% 65% 15 18
50423 123 15 JAN 2004 30% 36% 45% 15 15
50424 319 15 JAN 2004 30% 36% 45% 15 15
50425 111 15 JAN 2004 31% 37% 47% 15 15
50426 147 15 JUN 1955 42% 51% 66% 15 21
50427 503 15 JUN 1955 33% 40% 50% 15 15
50764 50 12 MAR 2004 26% 23% 38% 12 12
53946 452 8 DEC 1983 49% 14% 100% 8 12
53947 180 8 DEC 1983 21% 14% 66% 8 12
59559 404 15 JUN 1955 34% 40% 51% 15 15
59560 65 15 JUN 1955 37% 44% 55% 15 18
59675 266 15 JUN 1955 44% 47% 62% 15 18
61679 396 12 NOV 2004 31% 28% 47% 12 12
61680 28 12 MAR 2004 32% 28% 47% 12 12
63348 54 16 JUN 1955 30% 31% 40% 16 16
63349 86 15 JUN 1955 35% 37% 47% 16 16
63350 367 15 JUN 1955 21% 26% 32% 15 15
63352 1113 15 JUN 1955 100% 100% 100% 30 30
EXHIBIT B
4.4.8 CC6 Line
There is a small continuous run of pipe segments in CC6, shown in Figure 22 that is showing
undersized in the 2010 model run. The pipe runs to the east of Wellborn Rd, from Luther St to
Southwest Parkway.
End CC6
Line
a
1
cc
Begin
CC6
Line
FIGURE 22: CC6 PROJECT LOCATION
The total length of this pipe run is 3,850 ft (0.73 mi). It appears that this stretch of pipe is
undersized. The CC6 Line feeds into pipe that has a 15-inch diameter, which does not exhibit
capacity issues now or in the future based on the model analysis. The capacities and diameters
of the pipe segments are listed in Table 26.
Page 169
G rv cu Gnirre Sra'nov
EXHIBIT B
TABLE 26: CC6 LINE CAPACITIES
Existing Year2010 Year203O Build-O 2030 BuildOut
aaa -a aaa as
a Capacity Capacity Capacity
D. Dia
571 484 10 JUN 1955 100% 100% 100% 18 18
2593 136 8 JUN 1955 49% 76% 57% 12 12
2596 327 8 JUN 1955 64% 100% 75% 12 12
2597 229 8 JUN 1955 81% 100% 100% 18 12
2605 360 10 JUN 1955 69% 100% 100% 18 18
2606 287 10 JUN 1955 64% 100% 100% 18 18
2889 183 10 JUN 1955 72% 100% 100% 18 18
2890 335 10 JUN 1955 100% 100% 100% 18 18
3669 590 10 JUN 1955 78% 100% 100% 18 18
3670 355 8 JUN 1955 77% 100% 100% 12 12
35335 244 8 JUN 1955 100% 100% 100% 12 12
59611 320 8 JUN 1955 62% 100% 74% 12 12
4.5 IMPROVEMENTS TO EXISTING SEWERED SYSTEM - TYPE B PROJECTS
The following isolated pipe segments showing capacity issues in the model are listed below with
possible reasons as to why. If, by looking at the data in the model no explanation could be
determined, the pipe segment was marked as needing further investigation. The Type B Projects
are shown on Figure 23, and listed in Table 27.
C
O
M
'/^8 N
c Q:
U d v! O 'O =F O
W U L O yep C7
R'0 2 N Cl) U) U) O
a F- CL C d Yca"c
O 3 a L) n/
mU m a N U 1
a0 Z a) C:
CL CU
•U U Q U lJ N
H Q Q U J Cn H a
J * ° o
x
j
0
V ~
* t~
9
4 6
19
U ~o < N oa4`r
\e U U
Cy U F, P
L9O 11 L U WIMP" ~9 30b9J`JVIN(.bj ES C~
V SDayyyy~ 6AM!`J3G0lib iaY3 S~G~}~E 04
N U ` .v
x'1595 z
L
n U g
m onle sa3,rloae ~ s
m i 'h
;$a
~ daeg '-vie \ de
1,, 117
m
X v
I os ~
W mod. y, ~
4s X93 9
S9 85 LO
ti
dd Z ~ /
~ dog 5~ A°~ ~~06
/
` 06 E
U ~O\. U Etc
2 U F U Gel 9
9 ~ m co Q
O~`9
~j
o /
s
~S e~p0 Oyo~ N
U
Z
~ P
tib
J
OxWL ~X ~i S1~3fOad 83dA1 EZ`J13 Ls90f l~dVWJdMS~OQdtlrv~3S~MN1 rv011tl1S 3~3110~ Ze80E~WM a31tlM~9N1a33Ni'JN3SVllVO LEOld3a'~~' 3113
EXHIBIT B
TABLE 27: TYPE B SEGMENTS CAPACITIES
Existing Year Year FEATURE LENGTH 010 2030
Name Dia Installed
Capacity Capacity Possible Reason
ID (ft) (in) CC11CC2 B 1593 123 18 MAY 1973 100% 100% 100% Flat Slope
CCl/CC2 B 1595 492 18 MAY 1973 39% 48% 51% Flat Slope
CC11CC2 B 1596 485 30 NOV 1993 22% 27% 29% Flat Slope
CCl/CC2 B 1606 480 30 NOV 1993 26% 32% 34% Flat Slope
CCl/CC2 B 1612 954 18 MAY 1973 39% 47% 50% Flat Slope
CCl/CC2 B 2267 132 30 NOV 1993 23% 28% 30% Flat Slope
CC1ICC2_ B 2765 547 15 100% 100% 100% Flat Slope
Adverse Slope -
Needs
CC11CC2_ B 3337 242 15 JUN 1955 60% 71% 78% Verification
Adverse Slope -
Needs
CC11CC2 B 3785 381 8 JUL 2001 20% 22% 24% Verification
CCl/CC2 B 3786 92 6 APR 1974 20% 22% 23% Flat Slope
CC11CC2 B 3788 168 6 100% 100% 100% Flat Slope
CCl/CC2 B 4074 324 12 AUG 1978 44% 48% 53% Flat Slope
CC11CC2 B 42680 30 6 APR 1974 15% 19% 20% Flat Slope
CC11CC2 B 43380 234 30 NOV 1993 12% 20% 30% Flat Slope
CCl/CC2 B 61061 134 8 JAN 1998 8% 10% 10% Flat Slo e
CCl/CC2 B 61062 174 8 JAN 1998 14% 17% 20% Flat Slo e
CC6 B 50 170 6 33% 40% 43% Flat Slope
CC6_B 133 411 15 MAY 1984 36% 44% 46% Flat Slo e
Future Discharge
CC6_B 2943 134 6 MAY 1980 79% 100% 100% for VPLS
Future Discharge
CC6_B 2944 269 6 MAY 1980 42% 51% 67% for AALS
Future Discharge
CC6_B 2946 99 6 78% 68% 100% for AALS
Future Discharge
CC6_B 2947 221 6 35% 67% 100% for VPLS
Future Discharge
CC6_B 58662 167 12 FEB 2006 32% 36% 46% for AALS
Future Discharge
CC6_13 58665 126 12 FEB 2006 100% 100% 100% for AALS
Future Discharge
CC6_B 58667 499 12 FEB 2006 100% 100% 100% for AALS
Future Discharge
CC6_13 58668 353 12 FEB 2006 77% 68% 100% for AALS
Future Discharge
CC6 B 58669 501 12 FEB 2006 77% 68% 100% for AALS
Page 172
EXHIBIT B
TABLE 27: TYPE B SEGMENTS CAPACITIES
Existing Build-
FEATURE LENGTH 2010 •
Capacity Possible Reason
Name Dia Installed ID (ft) (in) Capacity Capacity N
Future Discharge
CC6_B 58670 497 12 FEB 2006 34% 67% 100% for VPLS
Future Discharge
CC6_B 58671 505 12 FEB 2006 15% 34% 36% for AALS
Future Discharge
CC6_B 59346 532 15 MAY 1984 10% 8% 8% for AALS
Flow from Future
CC6_B 59613 310 6 OCT 1992 11% 41% 100% LC 2X
Flow from Future
CC6_B 59614 344 6 14% 48% 100% LC 2X
Flow from Future
CC6_B 60127 162 8 DEC 2007 14% 48% 100% LC 2X
Flow from Future
CC6_B 60128 222 8 DEC 2007 13% 40% 100% LC 2X
Flow from Future
CC6_B 60129 231 8 DEC 2007 13% 40% 100% LC 2X
Flow from Future
CC6_B 60674 14 10 MAR 1977 13% 42% 100% LC 2X
Flow from Future
CC6_B 60676 182 10 MAR 1977 8% 28% 46% LC 2X
Flow from Future
CC6_B 60679 52 6 MAY 1980 7% 26% 44% LC 2X
Future Discharge
CC6_B 60680 18 6 MAY 1980 10% 3% 3% for VPLS
Future Discharge
CC6_B 61754 127 12 FEB 2006 6% 16% 16% for AALS
Future Discharge
CC6 B 61755 320 12 FEB 2006 3% 5% 5% for AALS
4.6 FUTURE TRUNK LINE EXTENSIONS
Several of the existing trunk lines will need to be extended to serve future growth in the planning
area. Similar to the existing system analysis, the future system model is analyzed in accordance
with the City Guidelines and TCEQ Chapter 217 standards including:
• A wastewater collection system must be designed to handle the transport of the peak dry
weather flow from the service area, plus infiltration and inflow;
Page 173
EXHIBIT B
• Depth over diameter (d/D) no greater than 50% under peak dry weather flow at build-out
conditions
• Velocities of 2-4 fps for gravity pipes and 3-7 fps for force mains;
• A Manning's friction factor of 0.013 assigned to all new sewers;
• Manhole spacing:
0 8" - 15" 500 LF maximum distance
o 18" - 30" 800 LF maximum distance
• Minimum drop across manholes no less than 0.1 feet;
• And minimum diameter of sewer mains is no less than 6 inches.
The proposed extension alignments are shown in Figure 24. A total of 228,488 ft (43 mi) of new
pipelines will be required to service the future growth areas. The basic characteristics of each
pipe segment are given in Table 28:
Page 174
CrncW liairceSrnnciv
x ti. a .Ra rrh
FDR % Off
O L L u8 N
U) co C/) C/) LLI
O m o m C a afi
c~
a) CD
CO W > U (n -a U) a U U)
O X a) O N °caQ
aO W LL J CO J I Z !i w 3 u
W d N N -O N ► A LL LL ca L)
~ W li 11 U- Q Q U 3 H U 0 4 y
Za ~
N
c ~
J
4
~ FUT88-6in-
a - ,r
4 y UI -
N j l y
m v ~ a,
~V f~ 1
,x, 3
~(Tl'.~ fa';fJ4L.~1, ~Yrrs \..'!s gf' ~
i
J
1
()XIY G~X << SNOISN31%33tlfllflf OZ'Jii Ze90f l~dVWJtlNS~O()dVYN3S~MM NOIIYIS 393110 Z>90EtNM1 tl31bM~'JNitl33NI~N3SV11V0 LEO1d3Q~~'3111
EXHIBIT B
Table 28: Future Trunk Line Extensions
Pro
FEATURE-ID Diameter Slope Velocity Capacity
•
FUT1 24 2008 0.0085 0.5931 1.76 0.1429
FUT2 12 1920 0.0111 0.0727 2.14 0.1188
FUT4 15 1400 0.0150 0.0727 0.09 0.0832
FUTS 21 3085 0.0178 0.5931 3.95 0.1418
FUT6 21 2852 0.0053 0.5472 2.80 0.1835
FUT8 8 4752 0.0089 0.0188 1.21 0.1098
FUT9 8 1252 0.0008 0.0188 0.60 0.1971
FUT11 12 3158 0.0051 0.0300 0.24 0.0939
FUT12 18 3618 0.0017 0.9982 2.23 0.4148
FUT13 15 755 0.0026 0.0161 0.70 0.0616
FUT16 15 2688 0.0015 0.0528 0.93 0.1239
FUT17 12 3083 0.0046 0.0381 1.29 0.1078
FUT18 12 16381 0.0020 0.0116 0.36 0.0743
FUT19 15 4862 0.0021 0.0768 0.18 0.1373
FUT22 8 1528 0.0118 0.0054 0.64 0.0569
FUT24 18 3686 0.0032 0.0884 1.40 0.1043
FUT50 12 677 0.0044 0.0753 1.57 0.1506
FUT51 12 4292 0.0079 0.0327 0.06 0.0879
FUT52 12 2281 0.0035 0.0170 0.87 0.0781
FUT53 8 3698 0.0100 0.0093 0.83 0.0765
FUT56 15 2002 0.0060 0.3429 2.66 0.2196
FUT57 15 1354 0.0251 0.0670 2.69 0.0709
FUT59 12 6415 0.0078 0.0366 0.92 0.0931
FUT60 12 3919 0.0008 0.0287 0.56 0.1444
FUT62 12 1858 0.0036 0.0696 0.14 0.1527
FUT65 15 2096 0.0013 0.0932 0.12 0.1673
FUT66 12 4099 0.0011 0.0263 0.61 0.1279
FUT67 15 2117 0.0008 0.0986 0.12 0.1981
FUT68 8 2122 0.0085 0.0044 0.41 0.0559
FUT69 12 1841 0.0120 0.0093 0.65 0.0442
FUT72 18 1062 0.0207 0.0725 0.35 0.0613
FUT73 18 828 0.0104 2.0677 1.81 0.3737
FUT74 18 3829 0.0034 2.0480 1.79 0.5096
FUT76 8 1227 0.0187 0.0000 0.00 0.0000
FUT77 12 197 0.0025 0.0188 0.45 0.0885
FUT78 12 1808 0.0028 0.0089 0.58 0.0610
FUT80 8 5074 0.0041 0.0006 0.04 0.0269
FUT81 8 2745 0.0029 0.0000 0.00 0.0000
FUT82 12 1171 0.0148 0.0262 1.55 0.0682
Page 176
EXHIBIT B
Table 28: Future Trunk Line Extensions
• .
Capacity
Pea Velocity Diameter FEATURE ID (fp
FUT83 12 5697 0.0030 1.0056 2.56 0.6749
FUT84 18 2893 0.0033 0.9269 2.39 0.3305
FUT85 15 536 0.0075 0.0362 0.93 0.0706
FUT91 12 525 0.0030 0.0026 0.49 0.0337
FUT92 12 286 0.0035 0.0727 1.43 0.1568
FUT95 12 1414 0.0134 0.0122 1.02 0.0487
FUT97 15 158 0.0190 0.2809 3.76 0.1501
FUT99 10 3484 0.0031 0.0518 0.79 0.1742
FUT100 12 685 0.0030 0.1805 1.67 0.2552
FUT101 12 5920 0.0030 0.2083 1.84 0.2745
FUT103 8 1065 0.0019 0.0000 0.00 0.0000
FUT104 8 4100 0.0044 0.0091 0.74 0.0921
FUT105 8 1992 0.0090 0.0205 0.71 0.1142
FUT106 15 1703 0.0012 0.0580 0.88 0.1372
FUT107 12 148 0.0129 0.0819 2.34 0.1213
FUT108 8 1924 0.0073 0.0180 1.11 0.1130
FUT109 15 2831 0.0007 0.0035 0.19 0.0409
FUT110 15 722 0.0028 0.0237 0.71 0.0730
FUT111 15 1911 0.0010 0.0280 0.53 0.0995
FUT112 12 1411 0.0022 0.0238 0.76 0.1025
FUT113 12 3344 0.0051 0.0238 1.00 0.0840
FUT114 10 18 0.0204 0.0079 0.06 0.0400
FUT115 18 16 0.0044 0.4559 1.53 0.1975
FUT116 21 45 0.0055 0.4043 0.26 0.1564
FUT117 21 612 0.0029 0.1001 0.06 0.0934
FUT118 15 1287 0.0023 0.0636 1.16 0.1216
FUT119 12 3923 0.0076 0.1335 0.26 0.1742
FUT121 8 6526 0.0100 0.0144 0.06 0.0870
FUT122 8 719 0.0181 0.0000 0.00 0.0000
FUT123 8 10951 0.0012 0.1726 1.04 0.5209
FUT124 15 1479 0.0041 1.0404 2.58 0.3956
4.7 LIFT STATION CAPACITY
4.7.1 Existing Lift Stations
Table 29 summarizes the pumping capacity and peak dry weather flow condition at each of the
existing lift stations.
Page 177
EXHIBIT B
Long I - • -
4.7.2 LC5 and LC7 Lines
As growth occurs in the system and Creek Meadows LS and LS#4 are expanded, there is a small
continuous run of pipe segments in LC5 and LC7, shown in Figure 25 that is showing undersized
in the build-out model run.
:7 m ~
4,53 °
cf o
LC 7 e
LC 1 ~ ~w waY
og % oyc~ LS2 NCT y
eco ( LC 3 1CK CREEK b
P T9OFs LC
'ST AFT ~ CT
~P
1k, r '~F ~ti~.er acs oq ~U LC 6 LICK CREEK L LS4CWWTr
sF~~ 16 ss °2 3R~°'r ~L~Gu ro LC 9
LC 4 Rya ~C,
g 40 t W'1Ll'iARA ~ ~'i7CN P1CAY ,p _
LC 5 4 600V rows OR R
GRs 4°
01, 0
i t NLS ~G ►1 737
~4pE afp
LFp8LUtiPE1YLN ffRRYRp Oti ,e~g9ALL OR
O
~ z~ RNIC~
04
O UG _ :
LC5 Line P O~~¢ EERPARxDR~ F
° }EAOH OREEK Ol7T-0F F RD
CA& S RNA RM E RD
F, AFB ~O
Apra Ro
~~s oR
FIGURE 25: LC5 and LC7 PROJECT LOCATIONS
The total length of the LC5 pipe segment is 2,023 ft (0.38 mi). The total length of the LC7 pipe
segment is 1,413 ft (0.27 mi). The model runs show that a portion of the LC5 line needs to be
Page ~ 79
A, ~ ~,1'IV (1F C(NI};(iL, STA71()\
1
.A Mor fdv Av+rzA LJ41
EXHIBIT B
• Force main average depth is 5 feet.
• No traffic control.
• A 12-inch layer of 500 psi flowable fill is placed above the pipe but not under the pavement.
• Pavement is 6" wider than the vertical ditch.
This cost was applied to all pipes, regardless of gravity or force main. The project list, shown in
Table 32, contains the Type A projects, shown on Figure 16, and the future extension projects,
shown on Figure 24. The future gravity and force mains were sized for build-out conditions, per
regulations. The line item cost for each project is included in Appendix B.
TABLE 32: COST ESTIMATE - SEWERS
Cost Estimate Cost Estimate
• Proposed 2030 Proposed Build-Out Miles of Pipe Project Priority
Diameters Diameters
Bee Creek Line Phase 1 $9,090,939 $9,364,421 3.7 HIGH
Bee Creek Line Phase 2 $2,932,966 $3,071,238 1.7 HIGH
CC6 Line $1,029,661 $1,021,653 0.73 HIGH
Lick Creek Line $4,970,435 $4,970,435 2.3 MED
NE Trunk Line Phase 1 $4,149,354 $4,483,467 1.9 IVIED
NE Trunk Line Phase 2 $4,951,847 $5,115,542 2.5 LOW
Southwood Valley Line $1,806,617 $2,027,255 1.2 LOW
LC5 Line $363,776 $531,021 0.38 LOW
LC 7 Line - $395,688 0.27 LOW
CC4 Line $2,217,385 $2,504,350 1.8 LOW
Future Gravity Mains - $25,877,227 34.5 IVIED
Future Force Mains - $4,277,649 8.2 VIED
TOTAL $63,639,947 59
A project priority was assigned based on review of the capacity available in the pipe segment
from the 2010 model run, knowledge of new development occurring within the CC6 sub-basin,
knowledge that most future growth will occur in the Lick Creek sewer shed (see Table 12), and
knowledge that capacity of the Lick Creek Line will be required when tying on the future
extensions. The priorities are defined as follows:
V~ Page 183
(.1 (Y OF (,(1(1}I:F. $TA71()ti
♦ arA»r.fdv Remo.A 4if4,
EXHIBIT B
• HIGH: Construction is anticipated to occur in the near-term, within 0-5 years.
• IVIED: Construction is anticipated to occur within 6 to 10 years.
• LOW: Construction is anticipated to occur within 11 to 20 years.
5.3 PLANNING LEVEL COST ESTIMATE - LIFT STATIONS
For the lift stations, a cost per gallon was developed based on recent experience with lift station
expansion projects and new lift stations in Texas. The project list, as shown in Table 33, includes
existing and future lift stations.
TABLE 33: COST ESTIMATE - LIFT STATIONS
Proposed Existing Lift Existing Capacity Out Capacity Cost
1
AALS 145 243 $73,500
CMLS 315 662 $260,250
FFLS 399 26 $0
HPLS 850 1173 $242,250
ILLS 45 18 $0
LS2 520 666 $333,750
LS3 700 588 $0
LS4 500 947 $25,000
LSLS 260 724 $348,000
VPLS 128 445 $237,750
WLS 180 0 $0
SUBTOTAL $1,520,500
Proposed Proposed 2030 Proposed Build-
Lift Capacity Out Capacity Cost
Station 1
PSLS-2 50 50 $50,000
PSLS-3 195 1410 $1,410,000
PSLS-5 48 200 $200,000
PSLS-7 2 30 $30,000
PSLS-8 52 257 $257,000
PSLS-10 145 173 $173,000
PSLS-11 90 607 $607,000
PSLS-12 57 226 $226,000
SUBTOTAL $2,953,000
TOTAL
~n Page 184
CI "1Y C1F C()Ix}xiF$TXIns,
~ w... ate. ~ ivy
EXHIBIT B
5.4 PLANNING LEVEL COST ESTIMATE - CITY IDENTIFIED REHABILITATION PROJECTS
HDR updated the City's cost estimate for the rehabilitation projects using the same cost per lineal
foot of pipe installed as for the Type A and Type B projects, with a 35% contingency due to
working in a developed area. The costs are summarized in Table 34, with the cost sheet included
in Appendix B. The following City identified rehabilitation projects are included in the Type A
projects and; therefore, not included separately within Table 34:
• NE Trunk Line Phase 1
• NE Trunk Line Phase 2
• Lick Creek Phase 1
• Lick Creek Phase 2
• Emerald Parkway_Bent Oaks
TABLE 34: PLANNING LEVEL COST ESTIMATE - CITY IDENTIFIED REHABILITATION PROJECTS
Project Name DR Cost Estimate
Carters Grove $781,614
Boyett $888,767
Camelot $2,927,495
Southwood $2,800,000
The Knoll $1,570,767
Prairie View Heights $1,799,457
McCulloch $2,917,361
Dexter $1,140,457
Eastgate Ph4 $1,963,000
Plantation Oaks $2,244,581
Ridgefield $1,392,033
Oakwood $1,425,786
Bee Creek $683,494
Eastgate Ph5 $649,407
Woodson Village $3,083,788
South Knoll $3,700,000
Culpepper $1,447,466
Eastgate Ph6 $1,925,791
Tauber-Stansey $361,304
College Heights $1,537,798
Northgate $534,055
TOTALS $35,773,905
Page 185
~,1 h (1P G)ITFx:F. STATION
~ b bvr.fb Rah Lif4j
EXHIBIT B
5.5 PLANNING LEVEL COST ESTIMATE - TYPE B PROJECTS
For those isolated segments that had capacity issues, a planning level cost is provided for
replacement consideration in Table 35. Additional investigation should be made of these isolated
segments to determine what rehabilitation or replacement is required, if any.
TABLE 35: COST ESTIMATE - TYPE B PROJECTS
2030 Build-Out
Proposed Proposed 2030 Build-Out
NAME FEATURE-ID LENGTH Dia (ft) (in) Dia Dia Cost Cost
CC1/CC2 B 1593 123 18 48 48 $61,578 $61,578
CC1/CC2 B 1595 492 18 18 18 $137,713 $137,713
CC1/CC2 B 1596 485 30 30 30 $196,590 $196,590
CC1/CC2 B 1606 480 30 30 30 $194,393 $194,393
CC1/CC2 B 1612 954 18 18 18 $267,138 $267,138
CC1/CC2 B 2267 132 30 30 30 $53,301 $53,301
CC1/CC2 B 2765 547 15 24 24 $194,271 $194,271
CC1/CC2 B 3337 242 15 15 15 $55,121 $55,121
CC1/CC2 B 3785 381 8 8 8 $68,642 $68,642
CC11CC2 B 3786 92 6 10 10 $18,048 $18,048
CC1/CC2 B 3788 168 6 6 6 $27,771 $27,771
CC1/CC2 B 4074 324 12 54 54 $181,227 $181,227
CC1/CC2 B 42680 30 6 8 8 $5,343 $5,343
CC1/CC2 B 43380 234 30 30 30 $94,676 $94,676
CC1/CC2 B 61061 134 8 8 8 $24,103 $24,103
CC1/CC2 B 61062 174 8 24 24 $61,883 $61,883
CC1/CC2 B 61063 194 8 8 8 $35,028 $35,028
CC1/CC2 B 63441 50 18 24 24 $17,750 $17,750
CC5 B 715 585 12 12 12 $143,397 $143,397
CC5 B 63359 36 16 16 16 $8,460 $8,460
CC6 B 49 452 6 10 10 $88,453 $88,453
CC6 B 50 170 6 10 10 $33,234 $33,234
CC6 B 133 411 15 30 30 $166,435 $166,435
CC6 B 2943 134 6 10 10 $26,343 $26,343
CC6 B 2944 269 6 10 10 $52,635 $52,635
CC6 B 2946 99 6 10 10 $19,485 $19,485
CC6 B 2947 221 6 10 10 $43,275 $43,275
CC6 B 58662 167 12 12 18 $40,987 $46,843
CC6 B 58665 126 12 12 24 $30,900 $44,774
CC6 B 58667 499 12 12 24 $122,326 $177,248
fa Page X86
(,()IJE(:F.$TAT()M1
EXHIBIT B
TABLE 35: COST ESTIMATE - TYPE B PROJECTS
2030 Build-Out
Proposed Proposed 2030 Build-Out
NAME FEATURE-ID LENGTH Dia (ft) (in) Dia Dia Cost Cost
CC6 B 58668 353 12 12 24 $86,456 $125,274
CC6 B 58669 501 12 12 18 $122,655 $140,177
CC6 B 58670 497 12 12 18 $121,812 $139,213
CC6 B 58671 505 12 12 18 $123,763 $141,443
CC6 B 59346 532 15 24 24 $188,999 $188,999
CC6 B 59613 310 6 8 10 $55,909 $60,774
CC6 B 59614 344 6 8 10 $62,061 $67,462
CC6 B 60127 162 8 8 12 $29,177 $39,674
CC6 B 60128 222 8 8 12 $40,078 $54,496
CC6 B 60129 231 8 8 12 $41,554 $56,503
CC6 B 60674 14 10 10 18 $2,838 $4,057
CC6 B 60676 182 10 10 18 $35,717 $51,060
CC6 B 60679 52 6 10 12 $10,088 $12,619
CC6 B 60680 18 6 10 10 $3,525 $3,525
CC6 B 61754 127 12 12 24 $31,069 $45,018
CC6 B 61755 320 12 12 24 $78,350 $113,528
CC6 B 62783 501 8 8 18 $90,183 $140,144
CC9_B 56895 248 12 18 18 $69,528 $69,528
TOTAL $3,664,269 $3,998,654
Dq Page 187
71IY (1f C()IIJ:(;F. STATION
ar Mvr .~Ar Rna`nd lilh
EXHIBIT B
6.0 CAPITAL IMPROVEMENTS PLAN SUMMARY
The recommended capital improvements plan is summarized in Table 36. The cost estimate
sheets are included in Appendix B.
TABLE 36: CAPITAL IMPROVEMENTS PLAN
Planning Level
Estimated Construction Costs
PROJECT Build-Out Condition
City Identified Rehab Projects $35,773,905
Type A Projects in order of riorit
Bee Creek Line Phase 1 $9,364,421
Bee Creek Line Phase 2 $3,071,238
CC6 Line $1,021,653
Lick Creek Line $4,970,435
NE Trunk Line Phase 1 $4,483,467
NE Trunk Line Phase 2 $5,115,542
LC5 Line $531,021
LC 7 Line $395,688
Southwood Valley Line $2,027,255
CC4 Line $2,504,350
Type A Projects - Total $33,485,071
Miscellaneous Projects
(Type B $3,998,654
Existing Lift Stations -
Increase Capacity $1,520,500
Future Lift Stations $2,953,000
Future Extensions
ravit and force main $30,154,876
Total Program Costs $107,886,007
6.1 CITY IDENTIFIED REHABILITATION PROJECTS
The cost estimate for rehabilitation of the projects identified by the City is $35,422,400. The total
length of the identified rehabilitation projects is 218,400 LF. Approximately 60% of these pipes
are not included in the model since these pipes are located mainly in subdivisions and are 6
Page 188
CAUI ;F. STATIU\
al La.Ji[v Rem+rh 4if1)
EXHIBIT B
inches or less in diameter. The individual projects are listed in Tables 14 and 32 and are ranked in
accordance with the City developed scoring matrix included in Appendix A.
6.2 BEE CREEK LINE PHASE 1 AND PHASE 2
From the model analysis, pipe segments within the Bee Creek Phase 1 and Phase 2 projects are
showing capacity issues in the 2010 dry weather peak model run as seen in Tables 19 and 20.
The capacity issues increase at 2030 and build-out conditions. The City also stated that this
drainage basin, CC6, will see significant development within the next couple of years. Therefore,
Bee Creek Phase 1 and Phase 2 are placed as the highest priority project on the capital
improvement plan.
6.3 CC6
From the model analysis, pipe segments within the CC6 project are showing near 100% capacity
from the 2010 model run as seen in Table 25. The capacity issues increase at 2030 and build-out
conditions. Therefore, CC6 is given a high priority status.
6.4 LICK CREEK
From the model analysis, pipe segments within the Lick Creek project are showing at 50%
capacity in 2010, which is optimum. However, the line reaches capacity in the 2030 and build-out
model runs due to the tie-in of the future extensions in the growth area. This project needs to be
completed before the future extensions are tied-in; therefore, this project has been given a
medium priority anticipating construction to occur in the next 6 to 10 years.
6.5 NE TRUNK PHASE 1 AND 2
From the model analysis, pipe segments within the NE Trunk Phase 1 and 2 projects are showing
some capacity issues with most occurring in the 2010 model run near the CCWWTP; therefore,
Phase 1 starts at the CCWWTP. No immediate growth plans are for this area, so the project was
assigned a medium priority with construction to begin within the next 6 to 10 years. Phase 2 was
given a low priority, anticipating construction to occur within the next 11 to 15 years, as slow
growth is expected along this corridor.
6.6 LC5 AND LC7 LINES
From the model analysis, when growth occurs to Creek Meadows LS and Lift Station #4, the LC5
and LC7 lines are shown to be undersized and have capacity issues. The capacity issues start to
%P age 189
(,l'1Y (1F 0)I1k3:F. $TA71( W
dry fir Aem4i~j
EXHIBIT B
occur in the LC5 basin in 2030 and increase at build-out conditions. The LC7 line is not showing
capacity issues with the 2030 model run, but is with the build-out model run.
6.7 SOUTHWOOD VALLEY
From the model analysis, pipe segments identified in the Southwood Valley project are not
showing critical capacity problems in the immediate future, but capacities range from 60 to 80%
as growth occurs in this drainage area. Due to capacity issues not showing until 2030 or build-
out condition, this program was assigned a low priority, anticipating construction not to occur for
15 plus years.
6.8 CC4
From the model analysis, pipe segments identified in the CC4 project are not showing critical
capacity problems in the immediate future, but capacities range from 60 to 80% as growth occurs
in this drainage area. Due to capacity issues not showing until 2030 or build-out condition, this
program was assigned a low priority, anticipating construction not to occur for 15 plus years.
6.9 MISCELLANEOUS PROJECTS (TYPE B)
The Type B projects represent isolated, miscellaneous projects that have capacity issues showing
in the 2010 model run. It is recommended the City further investigate these areas to ascertain
how the isolated capacity issues can be resolved.
6.10 EXISTING LIFT STATIONS- INCREASING CAPACITY
Seven of the eleven existing lift stations will exceed the existing firm capacity as growth occurs
within lift station service areas. In most of the cases, the lift station wet well volume will need to
be expanded. Lift Station #4 is a new station, and additional wet well volume was included in the
design to accommodate future flows. This cost estimate is a planning level estimate only. The
City will need to monitor where development occurs to be able to schedule when lift station
capacity will need to be increased.
6.11 FUTURE LIFT STATIONS
Eight future lift stations have been identified. These lift stations will need to be constructed with
the future extensions as non-sewered areas are annexed by the City. This cost estimate is a
planning level estimate only. The City will need to monitor where development occurs to be able
to schedule when the future lift stations are needed. Flow that currently goes to Westminster Lift
~N Page 190
(;Fry (1F (j)1A}(:F $TA77[)Y
d k-fdr R-" W&7
EXHIBIT B
Station (WLS) will ultimately be redirected to the future PSLS-10, allowing the City to abandon
WLS.
6.12 FUTURE EXTENSIONS (GRAVITY AND FORCE MAIN)
The future extensions are needed to provide service to the future growth areas that have been
identified by the City Planning Services Department as part of the 10-year annexation plan. The
lines were sized to maintain slope and velocity requirements included in the City's design
guidance and TCEQ Chapter 217. The actual diameter size will need to be verified during the
design process of the future extensions.
AO! Page 191
OIl' (1F 01(1F1iF. $TA71(1N
dv Aron fi6. RaeoF 4i27
1UR fl
%
EXHIBIT B
APPENDIX A
Scoring Matrix
Appendix A
f)UFliF. SWIM
J. Mrtefrhrl~vnh V.&~
VIM.
EXHIBIT B
WASTEWATER COLLECTION SYSTEM SCORING FOR THE CITY OF COLLEGE STATION
WASTEWATER ASSESSMENT:
Total Score(100 pts max) _ (Diameter) + (Material) + (Age) + (Capacity) + (Repairs) + (Critical Pipes)
PRIORITY RANKING:
Diameter Scorine (max = 15 pts) Pipe Capacity (max = 20 pts)
3" and smaller pipe = 15 points Peak DWF Capacity Used >80% = 20 points
4" and smaller pipe = 12 points Peak DWF Capacity Used 60% - 79% = 12 points
6" and smaller pipe = 7 points Peak DWF Capacity Used 40%- 59% = 7 points
8" and smaller pipe = 0 points Peak DWF Capacity Used < 40% = 0 points
Material Scoring (max = 15 pts) Repairs Scorine (max = 20 pts)
URC/RCP = 15 points 6 or more breaks = 20 points
VCP = 13 points 3 - 5 breaks = 12 points
NULL/NON = 12 points 1 - 2 breaks = 7 points
CIP = 11 points No breaks = 0 points
DIP = 8 points
PVC/HDPE = 6 points
Pipe Age Scoring (max = 15 pts) Critical Pipes (max = 15 pts)
Before 1960 = 15 points Surcharging Manholes/Less than 2fps = 15 points
velocity/Greater than 15 fps velocity
1960 to 1975 = 10 points Creek Crossings = 12 points
1975 to 1990 = 6 points Significant Access Issues = 7 points
After 1990 = 2 points Minor Access Issues = 2 points
NULL/UNK = 10 points
-"-w Appendix A
Gn'OFC()IJF STATION l
fal ef'A.IP-AVe&j
EXHIBIT B
SCORING MATRIX DESCRIPTION
Each pipe segment was scored in accordance with the categories of:
• Pipe Diameter
• Pipe Type
• Pipe Age
• Peak DWF Capacity Used
• Repairs
• Critical Issues
Pipe Diameter
The pipe diameter was obtained from the City's GIS attribute data in the wwMains shapefle.
Pipe Type
The pipe type was obtained from the City's GIS attribute data in the wwMains shapefile. If no
pipe type was listed, a score of 12 was assigned.
Pipe Age
The pipe age was obtained based on the installation date from the City's GIS attribute data in the
wwMains shapefile. If no install date was provided, a score of 10 was assigned.
Peak DWF Capacity Used
The percent of peak DWF capacity used was obtained from the model steady state analysis run on
the existing system. When looking at this data in the spreadsheet, a 0% capacity means that this
pipe was not included in the model and; therefore, not analyzed. Dashes are used in the scoring
columns to represent unknown capacity.
Repairs
The amount of repairs on a given pipe segment was obtained from the City's work order system.
While the number of repairs is known, the type of repair or the time between multiple repairs on a
single pipe segment is not known and not considered in this matrix.
Critical Issues
The surcharging and velocity issues were obtained from the model steady state analysis run on the
existing system. The remainder of the critical issues was obtained by reviewing the aerial
photography of the pipe segment location. The location of the pipe segments in relation to
physical features was determined by this review and listed under the "critical" column in the
scoring spreadsheets. The locations are defined as follows:
• BOL: Back of Lot. The pipe segment is located in the back of a lot and was
assigned a "2" score as a minor access issue.
• FOL: Front of Lot. The pipe segment is located in the front of a lot, usually along
a roadway and was assigned a "0" score for no access issues.
Appendix A
~.ITYOFC(Il>F1:F $TAT7()N
dr 6.rrr.fJnr Reri ViQry
lUl
EXHIBIT B
• UC: Utility Corridor. The pipe segment is located along a stretch of land that
appeared to be for utilities only; for example, the shoulder of a major highway.
These segments were assigned a "0" score for no access issues.
• OF: Open Field. The pipe segment is located in an open field; no structures or
obstacles. These segments were assigned a "0" score for no access issues. This
may change in the future with growth and development.
• W: Wooded Area. The pipe segment is located in an area that appeared by aerial
photography to have a significant tree canopy. These segments were assigned a "T'
score for significant access issues.
• PL: Parking Lot. The pipe segment is located in a parking lot area. These
segments were assigned a "0" score for no access issues.
• GC: Golf Course. There is a stretch of pipe that runs underneath a golf course.
This was assigned a "T' score for significant access issue.
• BOL-P, or GC-P: The pipe segment is located in the back of lot underneath a pool,
or located at the golf course underneath a pond. These cases were assigned a "12",
as they are as significant as a creek crossing.
• CC: The pipe segment crosses are runs in close proximity of a creek. These
segments were assigned a "12" for a creek crossing.
• STR: The pipe segment is contained in the street or is a street crossing. These
segments were assigned a "0" score for no access issues.
Scorin
The rehabilitation projects were grouped into projects by the City and provided to HDR. Each
pipe segment was assigned a score based on the above categories and scoring matrix. The scores
for each pipe segment were added individually. All individual scores were averaged together to
obtain an overall project score. The projects were ranked based on the overall score, with the
highest score having more priority when only considering the factors in the scoring matrix. Other
priorities not listed in the matrix may move a project up or down on this list.
When an overall score for one project equaled the overall score for another project, the ranking
was based on the following hierarchy:
• Capacity
• Repairs
• Pipe Age
• Criticality
• Pipe Diameter
For criticality, when the pipe segment met several factors in this category, the highest score
prevailed. For example, if the pipe was located in BOL and the velocity was 0.5 fps, the score
assigned that pipe segment was "15" for having a velocity issue.
L'Tj■ {T Appendix A
1 7Y OF Cf 1Il Fl:F $T417()ti
Vd4J
EXHIBIT B
APPENDIX B
Cost Sheets
/T Appendix B
~ C[)IJFl'~F.STAII[)M1
♦ dr Lvn./dr R._cnJ~VmNq
1+ ^ l0 0) N Ln 00 M M ri I, O O LD m Ln LO t r4 N C M Ln n m r-+ L() O O LM
0) M a) r` N m 00 O Lf) N Lf) r-I m m m Ln m O 00 ri Ln N m O O m
O l6 O ~ 6 r` u) r~ m V V N N rm O Ln N- -4 01 V Lf) I~ 00 m O O m
u m N oo r, w n m n LD r-I oo N Ln N N Ol 00 rn r-I N 00 LO ri a) m m O'La 01
I t\ M a ri m 0 n o0 m n V r- O r I N V O O 00 LO 00 00 V m V 0
N 00 4 00 Z Lr) Ln 06 N M Lf1 Lr 0) a N M LD 00 LO N 00 L!1 Ln n 00 L!1 m
O m L/) M -4 rt to ~•4 to Vn t4 n V). -1 N M to 1* N r-I LD ~ N N M N Ln N co
F t/1• i/} ih tll to V1 i/} t/} i/} t/} i/} V? N t/1• th to tf? V} {n D ih to
O O O O 00 N N N N O O O LD LO LD LO .-I e-I ri ri ri ri ri .--I ri O ~ O
O O O V r-I r . c-I r-I LO LD LO m m m M ri
O n
LL o 0 0 o m v v v :r v 4 .6 6 w o0 00 00 00 00 00 00 0o ao tLn
-j ri rt ri e-1 N m m m m-;T V V m Ln m Ln LD LO LD w w w LD w LD
ri -I rt ri H ri rt ri ri ri r-I ri r-I ri r-I ri ri ri rI ri ri ri -1 ~
to to to to tf) <n to <n to tf? <n to v> to to tft• to to to to 14T to to to to to
25
m
dl 00 O O N N N M Ln M Ln W W W W W 00 00 W W
L
N
O
N o 0 0 0 0 0 0 0 0 0 w o oo\° o 0 0 0 0 0 0 L
ON c-I N N N N NN m m:T m w N m-* m M Ln
~I
J J J J J J J J J J J J J
U U u U U O~ U U O D U O O O O d 0 O O u O O O d
m Li) m m m m m m m m co m co
u
- - - - - - - - - - - - - - - - - -
a
a
S O O N ri ri 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ri 0 0 0 0
~I
O
H
-4I
m m 0- D_ IZ 0- a o_ a D_ 0- d a U M a D_ o 0 o D o a o o a a
U U U U U U U U U > U U U U U U U U U U U U U
_ >>>>>>>o>>ooI>>>>>>>>>>>>>
X
W N^^^ M Ln m O1 r, r- a r, m M rl rl m r- r, rl m
c rn m rn rn m m rn rn m rn m rn m rn rn rn m rn m m m rn rn m
•-I r -I -I ri c-1 r-i ri r-I -1 ri rI ri ri r-I ri ri c-I ri e--I r-I r-I ri r-I a--I ri
a) U U U U J Z Z Z U}} m 0C m K}} m m} m m OC }
M W W W W W Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
O O 00 N N N m Ln M Lf1 co 00 00 00 00 00 00 00 00
LD LO LD W 00 r-I c-1 r-I ri ri r-I a-i r-I ri ri ri r-I r-I r-I ri r-i ri r-I ri r-I
f_0
O t, C7) m M O Ln r-I Q) O 1' l0 V Q1 f' I- u1 lD V' N ~t r-I m O O
M M~ M N -Zr M N N M 0* m N to n g LD Ol 00 Lry r Ln r-i LD O
x M V m ri ri r-I e-I ri N M N ri M N r-I ri N r-4 Ln
Z
W
J
I m LD Q O n O Ln LD n r, r, oo l11 f~ Ol V m Ql c-1 W 01 l0 I, oo r•I
W W I~ o0 0o LD O t- Ln Ln Ln lD I, r` o0 0o Ln LD LD m r-I LD D Ln Ln Ln m
0: n ri 00 O LO LO W O 0) m r-I ri 00 O O -4 r-I ri I;T
Q D M r-I M~~ N~~ M m m ri m m m M m m
W
N LL
W
H c
O O
u
l7 N
Z_ c
c
z o
g a
a 7 u
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y 0 O)
W w v v w w w a v v w w w a 0J 01 N a v a w w w w v w
W OJ Ql N N 0) 01 01 01 Ol 01 0) N N O) 01 O) 01 0l v 01 01 OJ N O1 N GC
z i L
u dc U U U U U U U U U U U U U U U U U U U U U U U U U QY1 N
W G w a a a w w a a w w a w a w w w w cu a w w w a a a 3 a.+
W m w v v a a w a a a w w a a w v a v w w w w w a w a OJ O
m m m m m m m en Ln H
m Z m co co m m m m m m m co m co m m co co co
1, 1` w N V h ri Q1 I~ n rl O m r.4 O m ri N O O m
In LO ri t Ol n n N O V1 1` O w O O V1 m w-1 O m -0 O LO
O M W ~ 00 O 01 Ln Ln N 00 e-1 -1 Ln O Ql N M 01 V W
L 01 O ri Ln M N W W M~ W ul L(1 LD O In a-i V ri Ln w n O N o Lo
_I O Ln N M Ln 111 Gt W u1 Cl) W W Cl) M W Ln ~ W rn M N f\ LI) 00
00 00 00 O 00 N N M O N Ln O V W W N N 0) W W N N 00
0 ri r-4 L} L} ri Ln N Ct a-A N N ri N L} L} N N N ci ~ M
O 1 L1 L>• Ln- L} L} V} L} L} t1} to t/? iA V1. U} L) iV V} VF
L
H
O O O O O O O O O O O O O O O O O O 00 00 0 0
a 0 0 0 0 a Cl 0 0 0 0 0 0 0 0 0 0 0 1-t ~ Lf) O
11 O O O O O O O O O O O O O O O O O O m M InLr)
J e l ri N r-I ri a-i r-I c-1 e-i e-1 ri r-I N r-I ri N N ri
r1 ci c-I ri a-I ri ri ri ri ri r-I ri ri ci ri ci -1 tIT
L! N L} t1} L} L? L} L} L} L} L} N L? V? L> L) L} L1 L1 L} to
N
a
~I LO w w w w W W LO LD LD LD LO w LO LO W LO LD 00 00
f0
L
OJ
O
e-i
O 0 0 0 c 0
N o\° 0 0 0 0 0 0 0 0\° 0 0 0 0 0 0
QI O O O O O O O O O N O N O N O 0 0 0 LO 01
I
a
J
U J J J J J J J J J cr J w M w 0= w J J J J
P O O O O O O O O O F- O F- F- H F- F- 0 0 00
m m m m m m m v1 co l11 V) N In 1n m m m m
m co
u
a
CL
of O a O r -I O N ri m O ri 0 0 0 0 0 0 LO LO M c I
W
~I
O
F-
ri
I
F- O_ d O_ d 0_ d u u u a_ u a- O_ d O_ d 0_
> > > > > > m m m > d > > > > > > > > >
En ~
E
X m v d v V
W lD l0 LD W
C m m 01 m
._I 1-1 ri r-I ri
d u U u u
t, w w w w
m O
a
d
N
LO lD lD lO l0 lD lD lD lD lD lD lD lD lD W l0 lO lD 00 00
ro
0 0
00 v
~ Ln l0 N V 00 M O lD N O O O c-I lD lO ci l.Il ri
O N to lD M O w N m O V m X 0 0 l0
Z ri N I~ f\ Ol m N M r-I ri N ri -1 W N N N ri M
W
J
-I
W N 111 LD m O M w m.4zr Ln N C In f\ V N r` r\
M 1\ 1\ 1\ w i.0 w LO I, O r-I to Ln V r, ri -1 V
N N 0 0 0 Ln Ln 111 Ln Ln r, n n^ O O N N M O
W ci rl r-I N N N N N M M M M W W W W N Ln
Q W
LL
cn N
W C
LLn O
O
u v
l7 c
Z E o
U
Z m z ai
u
J . L
a O a, a,
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Of L
W Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Q~ Q) Q1 QI Q) Q) Q) Q)
T T T T T T T T 3
T T T T T T T . T T T T (U "I (L
m co m m m Co CO co co co m m m m m 0 m m v1 cn F-
co m co
w N w m N v m w m m-:t r- ~q O Ln w t r•1 m m ri ri v m-zt m ri w m O w 00
W M Ln M Ct r, c-1 Ln M M M W W M O M M N W W M N O-tt M r4 --I W N O W W
v rn l6 r-~ 00 O v Ln ri o, 4 LO v LD O 00 6 ri 1-~ ri m -4 ri m t-~ ri Ln O D, O ri o0
C r, m O w Ln N Ln 1-1 O ri m Il t\ N w Ln w w rl ri w N r-I n V 00 00 .--1 I- Ln Ln r~
UI ^ Q1 ci 01 N O M Ct M N r-I ri -ZT N m N c-I O ri o V m Ln ri m M LD LD Ln LD N O
N M m r, N m r Cf Ln r, m m m r %i ri D1 m ri P- Lfl -~F 00 M Ol f LO N N N 00
,N ri m m 00 N co r-I Ln r-I Ln M m LO ri m m m r-I ri r-1 -Ln ri m m r-I N N to r-1 N N
~ i!1• th i!} t.f} i/} i/} 1h V} i./} ih i!} ~ {/L i/} t!F V} i1} t!1 ih tJ} in• i/1 tn- tn- tn- t/} t/}
H
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 00
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ~
•J O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O m
c--I ri r-I r-I -i ri ri ri ri ri r-I ri ri ri ri ri ri ri .--1 c-I ri ri ri ri c-I ri .--1 ri ri ri a--L N
r-I r-I V-1 r-I
to V)- 4Ln in Qn to t4 V} t4 to t4 in• to vi- in• in -Ln t/)- in -tn vi- ih V'I- t✓} t4 to to n tf} t/} V'} 4.n
20
.a
LI LD lO lD l0 lD LD LD LD LD w w LD w w LD w LD w LD LO LD LO LO LD LD LD LO w LD w LD 0
m
L
T
O
ri
N o 0 0 0 0 0 0 0 0 0 0 0 0 ~ o ~ o ~ 0 0 0 0 ~ e\° 0 0 0 0 0\° o o\°
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
D ~
I
'O
J
V J J a J J J J J J J J J J J J J J J J J J J J J J J J J J C)f J J
O O J O O O O O O O O O O a 0 0 0 0 a a 0 0 0 0 0 0 0 0 0 F- O O
co m 00 m m m m m a LL_ m m 0 m m m 0 m m m a m m a a M Ln M m
u
a
a
W N O O O O m ri M O r-I O O N N O m 0 0 0 0 r-I O ri O O O O O O N r-I ri
I
H
O
m ~
I
H ~
20 a a a a a a m a m a m a a a a na a a a U a a a a a a a a m a a m
m ~ u u u u u u u u u u u u u u u u u u u> U U U U U U U U U U U
_ o > > > > > > > > > > > > > > > > > > > a > > > > > > > > > U > >
X
LV m 0 O ri ri N N E m m o O V m m m o M N O v 0 lD
Ln r r, r- t\ n n n f` ^ ^ FZ n f\ n ^ LO LD 1~ n f\ n f\ n to
C Ol m m Ql Ol Ql Ql a) Q1 ~ Ql m rn Ql Ql Q1 Q1 D1 rn m m m m am
•-I ri -1 11 r1 c-I r-I ri ri a--I ri ri r-I e-i ci r-I c-I ri ri e--I
of a r co co Z r a a W ac Z Z
Z Z w w w cl. w a a Q Q Q Q a a Q w w a a LL W a a Q
a a Ln U) LA Ln a Q Q a LL a Ln a s
d
E LD LO lD w w w W ~ LD LO w w LD LO LO LD L.D LD ~ LO F.D LD W w W W LD LD LD ~ co
E
0
v
x
~ LD Dl Dl O N O 00 Ln m O ri N 1, ri M d' LO m N Ln M W N W W M lD Ln N f,
ri O ri O O O Ln M M N O O I- ri O 00 Ln ~-i O Ln ri m <D O Ln Ln 1-1 Ol N ri O N
Z ri m m co N m r-I d ri Ln M M Ln ri m N M r-1 ri ri m ri m M ri N ri ri N N
W
J
0
W I ^ W r-I CO N n in r 4 -::t N M -~t r-I N Ol O M N
W Ln w LD m ~ M O M Ln fl ri N m Lf1 lO lD I~ f\ 00 M O O r-I N N r-I O Ql LD LD m M
t\ lD ri r-I N M M M M N N N N N N N~ M M M ri ri LO w W N
CQ e--I Lfl 1, n ^ r ^ ri ri ri ri a-I ri ri N N N N m m Ln LD LD w
c W
~ LL
N
W
N
O
U
C7
Z_
Z
Z
g
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 0.0
LLJ 0) N N 41 CJ 01 N 61 4J 0) N 41 N N N Fu N 01 41 N N 0J 41 N 4J 41 N Z N N v 41
E E E E E E E E E E E E E E E E E E E E E E E E E E E E
Q m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
U lz Ulu U U U U U U UU U U U U U U U U U U U U U U U U U U U U U U
,~o r, m Ln M LD N N o m ri a0 r` Ln rn o v m oo rn o o rn
4+ ';t O N M N W^ M ri O M W M ci O M r-I N m tD Ln m w N r~ Ln r- oo N O O N
N r, 00 4 O N Ln C7 rn 00 rn Ln a) LO oo v Ln oo en rn Ln Ln r4 M 00 rn r, 4 Ln O O LA
U r-1 m N 00 -1 N Q1 N r-I r, r~ r\ r\ LD oo m -zt KT oo Lo r~ Ln r~ O N Ln N ri a) O O O1
ri F, rn LD LD V O m c w oo r, n ri ri m N Ln q O oo Ln F, Ln r, oo M O O Kr
4 oo p a) r\ N oo V m M am am w LD m O~ -i o m M Cl) N Lb r, r-i LO LO N Ln o r\
ar N r-I N r-L tn- N N M Ln m tn_ co N in IA N M Ln r-1 -ct m -~t to m 00 Vn to -cn 00 m Ln N
C to to tn- V} t/} to th to tn- t!). A^ to t/} to t4 4.n ri t/? -1 1A. 00 00 ri M
{h t/} c. ih in N
to tA-
O O
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 N N N N N LD LD LD LD LD LD LO LO O C:) 0
O
6L Cr mt Tt t7 ~ V ~ ri r-I ri ri ri LD LD w LD W W LD LD Ln O
M m m m M rn m m m m en m m m m v v v v m a m a of m m m to Ln
N N N N N N N N N N N N N N N m m m M m oo oo 00 oo oo 00 oo oo
r-1 ri ri r-I r-1 r-i ci ri ri r-I ri ri ri -1 ri ri ri ri ri ri ri ri rt ri r1 rt r-I r-I -Z
V} tf} -cn i!} tn- to to V/ 'En to iR t!? to t/} to t/} to 4^ t/} to tf} to t!} t./} V/. to V1. t/}
f_0
i r4
LI 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ci O rO O O O e-i r4 N N (N r4 r-Ni r r4 N
~ i ci r i ri N r4 NN
L
al
O
a-I
N o o 'g o o o 0 0 '.Q o 0 0 0 0 0 0 0 o o o 0 0
am N r-I O Ql M N O LD Ln r4 m O Ln r" 00 O m 00 M M 00 r` O
Q ri ri r-i Ol r4 N ri M M ri -1 r-I r-I N M -1 e--1 r-1 ^ N r, OD -zt fl- r- ^ W -ZT
J
L) CC Q J J J J J J J J J Y J J J J J Y a W Y
~ m m m m a m O m m m m U a m O m m m m U U U U U U U
p~ co a co a u a s
u
Q
a
cc c-i ci 0 0 0 0 0 0 O m v t m r-i ri .-I ri 0 0 0 0 0 0 0 0 0
W
I
f-
O
m ~
a a a a a a a m a a a a a a a a a a a a a a a a a a a a
U U U U U U U U U U U U U U U U U U U U U U U U U U
_ > > > > > > > > > > > > > > > > > > > oL oC z z oc
X E
W ca LD M M M N lD N N w w M M N N O O O O M M M M M
LA LD n rl n r- <D r, r, W W N O r, ^ n r~ n r\ rl n r~ n f\
C Ql am m m rn Ql a) m m (n Q) O M Ql m m rn m M m (n M M
•-I ri c-I ri ri ri c-I .--I e-t ri N ri ri a-I r-I ri ri ri ri ri ri r1
-W Z Q Q Q >O Z w w z Z Q O O w Z Z Z Z Q Q Q Q Q
m Z Ln Ln _ Z Z L/) Q Q Q Q
or
G1 C) O co O O r-I ri ri r-i ri -1 -1 ri
E 00 00 00 00 00 00 00 00 00 00 co co 00 00 00 r-i r-I ri r-I r-i N N N N N N N N
25
.a
O O
0 C)
a) -1
~ Ln N m N N M ri W Ln CO M r, O ri N TO N M ~ ri N 10 m
M W Ql M M
Z Ql Ln lD <D LO co m ^ co LD n N r1 Ln ^ Ln l0 00 <0 O lD r-I
Z ci ri ri ri ri N N N M N c I N m M N f~ d
W
J
WI
Ln lD N M M m N m m n n 00 00 00 m W m CO O-1 0 m t-D N N N
W D cn r\ r, rl 00 00 ri 1-1 N LD LD M M LD LD LD M Ln Ln LD e-i ci ri m
m
O cn N
Q ^ N N N N N (n "1 00 lD lp M M r-I ri Ln f\ N N lD ^ ri a--I M -t M
M M
CC Q e-i r-I e-I ci ri N M ~ Ln Ln Ln Ln w (.0 ~ ri m N M M W LO LD
C W
LL.
N
W
O
U
U
aJ
Z O
Z O
Z 0
U
g
a Q
CU 41)
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
~
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O L
n
v Q1 w w v v w v w a v w v w v v w v v w v w a a v v w w
E E E E E E E E E E E E E E E E E E E E E E E E E E E E E O v
Q m m m m m m m m m m m m m m m m m m m m m m m m m Y a, O
V Z U U U U U U U U U U U U U U U U U UmU U U 3 (3131 U U Ulu[ N N H
O m 0 U1 I~ lD N n o 00 DO m o O M
e-i (D N ri C1 N ri Ol ri C1 U1 Lq m Cl O O Q1
Y M I- W W O I, N r~ O'zT N M Ln M O O M
N Cl t 0 I, r~ Cl Cl m U1 ri m ri N i-I O O ri
u M N W U1 O M O N Ul ri 1.1 W U1 lD O O LO
m N 00 I, m N O ~ M m to w ri U1 m ei
to U1 M e-I V~I:T V} I~ N N M ri W N I, M
V? V} V} V} V} V} V? t/)~ V? V)- V} V} -;t N V? r~
O v~
H
O O
O O
O O O O O O O O O O O O O 6 6
Il 0 0 0 0 0 0 0 0 0 0 0 0 0 U1 0
6 6 6 6 6 6 6 6 6 6 6 6 6 V} Ul
V► ri ri ri ri H ri ci ri ri ri c-I r-I ri
ci r-I ri ri ri ri ri ri r-I ri r-I r-I ri V}
V? V} V} V4 V1 V? V~ V} V} V? t4 VY V}
m
dl LD to w to to ID w to (0 LD l0 W to
m
L
0)
O
r-I
0 0 0 0 0 0 0 0 0 0 0 0 0
N \ \ \
~I O O O O O O O O O O O O O
I
'a
J
Imo' m co u m N Co co co
U
tY
Q
CL
W N N a-1 N Ln e-A N O W N r-I r-I N
I
h"
M O
WL ~
r ~
M _I
W m D_ a m D_ D_ D_ D_ D_ m D_ Cl. D_ CL
U U U U U U U U U U U U U
> > > > > > > > > > > > >
E
LU
M N N C~ N N N N N 1O ~D N
yYj lD lD ~p lD I~ lD lD I~ ~p ~p l0
~ C1 Q1 Q1 Cl O1 Q1 Q1 Q1 ~ O1 Cl
•'I u O O Z z
a a o a z a a z a a a
Y
C~ l0 l0 l0 l0 lD to l0 lD to lD lD l0 l0
G
m
C) O
~ N Ln M O N ri w O O U1 O in
w r, U1 w m m w r, r-I ri M Ln V
Z Ln V m r-I m m M w N N M r-I
W
J
-I
W 00 Q1 O ri a-I m ~ w w Ln w r` o0
N N M m r-I M N N N N r-I I:T LO r,
rn m m m r-i -1 r-I N N N. N N
Q
W W
~ LL
Q
L ~
LA C
W O
N U
O c
u v c
W E v
Q Z v 01 QJ 41 41 01 01 v a v w w v a
OC > > > > > > > > > > > > > u
Ur O O O O O O O O O O O O O
L
/L L L L L L L L L /L~ /L C:
LA l7 (7 (7 (7 (D 0 (7 (7 (7 (7 (7 (7 C7 ~ N
lA N N N
W L - L L - L L - L - L L - L - L - L - -
L L L
0J 01 N 41 0) N 01 Q1 v Ql d1 O) 0J v a)
d' t t t t t t t t t t t t t Q1 3
Q m m m m m m m m m m m m m LY v O
U U U U U U U U U U U U U U V1 rn H
v 1, 0 0o m m o O -1 ri v m rn LD rn LD O M tD Ln m m m N rn* N oo O v o m O m m m ri O
Y;3- N f- V N M m r- M w r, w Ln m m w r~ m -1 m V m r-4 ri 1, O,t 00 m r-I O M O,t r- r, 00 Ol
O O0 Ql m O O ur v I-~ O c-1 ri O0 LD I~ Ln O lD N ri 1,~ l0 r~ 4 N r,~ N N N oo m v O lD lD m 4 Di
0 LO rl r\ Ln N am 00 rn I\ lD M m O I~ N LD O * Ln Q) N zT N Ln oo O 00 N N Q) O r-I 00 M I, rn lD O
UI M rn 00 00 W N m 00 Ln M 00 r-I N O O O I~ Ln 00 rn rn N r- O Ct o, O rl r` O M-;T LO N Ln O w
rl 0) O 00 N M N M Ln Ln lD LD I~ lD 1~ Ol O N .--1 00 Ln r. O ri I~ t\ Q1 M lD 1. lO O 00 N ~e Ln r - M
N r-I M ri ri r-I ~l K' N m M V} r-I L/1 r-1 N N r-I M M Cr ri M V} W V? N ri V} -4 ih * r-I V} t0 r-I N to
G i/} V} V} V} V1 V} th V} VL in V} V} V} .V} tLn V} V} V} V} V) V} t/} V? V} V? V~ VT V? V! V} V} in
F-
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 w 00 00 00
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
-L O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O m m M m m
r1 c-1 r-I ri ri r-I r-I e-i c-I r-I ri r-I r1 r-I ri ri -1 r-I ri ri rH -1 -4 ri ri ri -1 ri r-I ri -i r-I r-I N N N N N
V) -1 r-I r-I r-1 -1 r-I r-I e1 ri e-1 r-I ri ri -1 ri r-I -1 ri ri -1 e--1 -1 e-i ri ri -1 r4 a--I r-I ri -4 ri r-I r-I ri c-4 ri r-I
Vn to i/} VT t/} V? V} V} V) t4 V} V? V)- t4 V} V} V} i/1 V} V? VT t/} V). in V) V} V? to V? V)- V) V> V} V} V} Vl~ Vi• to
m
LI LO t0 tD W LO w W LO LO LD LO W w LO LO W LO tD tO LO w w LD to w LO tO to w LO tD LO LO 00 00 00 00 00
m
L
N
O
C4 - r-I
O o 0 0 0 0 0 161, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0I.R o \ c r-I r4 01 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ri ri Ln 11 ri
I
.a
J
V J J J of ~ J J J J J J J J J ~ J D! ~ J J ~ ~ J J ~ ~ J J
0 0 0 F- a F- O O F- F- F- O O F- F- F- O O O O a F- a F- F- F- I- F- a o F F- a a F- F- a 0
LL
CO m m VI N LL m In LO V) W M Ln V) V) m m CO LL V) V) V) LA V) V) V) (/1 V) L,)
V
Q
a
W O ri 0 0 0 0 0 0 ri O O o N 0 0 0 0 0 m 0 d' -1 0 0 0 r-1 0 0 0 (D 0 0 0 0 c1 -1 ri e--I
I
M H
ca
H
a o_ U a o_ a o_ o_ o_ a Cl- o_ U o_ o_ o_ a o_ a a o_ u a U U a a u u U u u o_ a o_ o_ o_ a-
u u m u u u u u u u u u w u u u u u u u u cc u>> u u>>>>> u u u u u u
x > > > > > > > > > > > Z:) > > > > > > > > 7) > a a > > n_ a a n_ a > > > > > >
m
LU E
tl- I\ I` V V n n 0 00 N N 00 N
Ol a) Ol O O m 0) 00 ^ 00 00 n 00
C rn am am O O 0) 0) Ol m m Q1 rn
•-I r-I ri ri N N ri r-I -1 -4 ri -1 -4
co an an a a Co co F- C7 0_ O_ (7 a-
-W W W W W W W W U W W :D W
m LL LL LL Ln V) LL LL O Q V) V) Q V)
Y
cE W W LO W lD LO t0 t0 w tD W w w tD LO LO LOW W tD LD LO Lo LD to w LD tD LD LD W 00 00 00 00 00
C
~ 0) N r-I r-I Ln r-i ao O1 m -4 Ln l0 O Ln V 00 0 0 ~ 00 I\ m 0 O ^ M 00 N Ln w 00 N Ln LD -4
W 0o Ln
l7 t, rI N ri m m N M Ln 0o w ri Ln t0 rn Ln ri LO 1, ri ID W LD N r` . I
Z N ri r-4 r-I -4 r-I ri M N M M Ln r-I Ln ri N e-I r-1 N M z' ri N ri w w N r-1 w ri m -4 N N Ln r-1 r-I Ln
W
J
W m LO V1 W 00 01 N M V W W I, 00 N I, m m N V M N w 1- 00 m O a)^ m
M 00 0) O O ri N W LD LO W co m
L1') Ln 0 n Ol O O O O O r-I ri m m m w N Ln w w^ Ol Q1 M
M Ql Q1 -1 N N N I, r- t\ n O M
00 m N N N M m m m 0 0 0 0 ri r-I ri e--I ri r-I M Ln l.n lD I~ 00 00 00 O M m m m * .--I O O N
F- M M r I r1 r I r 1 r1 c 1 -1 1-1 1-1 r'1 N N N M M M m m ~ Ln m m m W
W W
Q LL
L
LU
W
N V1 N Vf N V1 V1 VI N N N VI Vf N N h to N N V1 N !n N Vf Vf h VI Vf N V1 h N Vf N lA Vf N 1A
H
i~ ~••i Y a-•Y i~ Y J~ ~••i i-N ~••i-1 1-~ Y ~-•~••i+ ~••1 Y Y ~•d ~••Y i-~ ~••i Y i••~ 1-~ F, Y 1~ ~•d Y N
O L ..C L t L t L t t t L L L L L L t L L ..C L t t L L L L t t t L L L t L t
U oD CD 00 0D CO 00 00 00 CD 0a 0A 00 00 0A o0 oa 0_0 00 0_0 0_D qz 0_A 0_0 Cp 0_A 0_D 0_0 0_A 0_D h0 0_0 0_0 0_A 0_D o0 0_D 90 O_D
Ln [L. w a) v w a1 a aJ v v a) a) v v a) a) a) a) a) a1 a) a) v a a) v 01 a) OJ a a, a 0) (1 0) a) aJ a1
= E _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
m a) a) a1 v a) a) a) aJ a) a1 w a) a) aJ al a1 aJ a1 a) a1 a) a1 aJ a1 a a1 a1 aJ 0) a1 al w a1 ai 01 aj v a
Z atiAi aWi atOi aWi v aWi aWi v aWi v atiAi v v aWi aWi as Di aWi aeDi v aWi v aa0i v aWi aa0i aWi aWi aW aWi atiAi v v v v atiDi aeAi a~i v
= O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
W u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
W
J
J
O
U
m O W Ln W N o0 m 0 O m
O m lD w -t m w 1, O O
oo 4 t.6 o0 o Li L i m o o n
O O r, 00 -1 N rn M a, v-• vn a,
UI 00 I~ N lfl n t\ n n n
M~ ,-i m 00 0) r-I m ° ° N Q O M M
0 in Ln .n -zT ih -1 1n Ln
t!? iA
O O
O O O O O O O O O
LL 10 l0 ID ID LO ID 'o O O
J
Lr) C)
-1 -1 -1 A A e--I rq ~
iA V? to V} in- iA y~y
20
101
N N N N N N N
m
d
O
ei
00 r, Ln rn L
N o 0 0 \ °
O
~I M m [t O O0
I
13
J
Ln cc N N ti 1i
u
a
a
W O O O O O O O
~I
m O
H
m
2 o_ D_ o_ o_ U o_ D-
U U U U> U U
X r > > > > o > >
m
LU E
M 00 00 00 00 00 00 00
~ n n t\ t` r\ r n
C M Q1 Ol Q1 Q1 D1 0)
.-I r-I r-1 -4 r1 r-1 .-i
al U U U U U (D (.7
a+ Z) Z)
a Q Q Q Q Q Q
d
a+
4! N N N N N N N
E ci -I e I a I c I c I
(0
M
O O
cn U*) t,
a -l Ln N h w N 01
tD a) r1 N N m lD
Z
W
J
I
m lD O -:T al
M Ol Zt ~t f\ n O
Q N N N [V -It -zt
W W
Q W
L
N
W C
O
{~N Vf N V1 to to N V1 j~
O t L L L L t L U
v OD to Mo GD GA o0 to v
c
Vf a,
m a, v v a v v v u
Z L v T v v T T u
W _ - M
= O O O O O O O O-
W U U U U U U U O v
~ ~ cn
J 41 ~
N
O L" In ~
m m m mI;t ri m 0 V n O m L/) m O O N W i--1 M Ln M i, M W v 1l Ln r-I W O O W
~ O .i I, Lr) m .Zr O V' n LO 00 1, N O LO (3) 00 u) lO LO :t -i r,4 LO 00 00 a 00 LO N Lo O O LO
(D a) O rn w r, m Ln w m 00 V 06 N ~ w Ln O a) ri N Ln zi Lr) -4 1~ Lr) ri lD O Ln O O Ill
00 Ln o O A LD t0 N a) -i c O 4 '-1 M O L!1 N U) N Ln m Ln F, Ln Ln o i-, Z Lr) w o O w
UI N ri m Ln c-4 ci LO LD f, V m r-4 N O m a) Q) 1-- m c-I O m a) 1- M n V Ln ;t O O
(0 N <D N L() V S O LD Q) Ln r` m m oo rn ri a) V 1- N r, c 00 N Ln m Lr) m L!1 N n Lr) Lr) P
M V/ Lf) Ln ';:I- N M N M V)- M N in ci K* N N ci KT Ln ci N N ei r4 v -1 00 LO 00 00 1,
p in to v> ih an to to to to in in in in in t4 in in in V*~ an in an in ih V~- in m m in v
N
O O
O O O 00 00 00 00 00 00 00 00 N N N N N 0 0 0 0 0 0 0 0 0 0 0 LO LO W O O
LL O O O V v v V V : v v ci ci lD l0 lD LO lD LO LO l0 LO LD lD M M m O O
J O o o m m m m m m m m v 4 v 4 v V V V v V V V-zj- ~t V V w LD Lo u1 O
.-i ci ci N N N N N N N N M M M m m V~-zi- -~t V c7 -zl- -,t V m m m in Ln
N -1 ci r-I -I -I -I r-I r-I r-1 ci -4 r-I ri ~--1 ci c-I -4 e-1 c-I i--I .-i rH -I ci a-i -I -I ri ci -I
I-
in -L/V} in in in N in in i/). in to n n n in in in o V} in V} V} in in o i/} to in i/}
m
~I LO LD lp O0 00 00 00 00 00 00 00 0 0 0 0 0 N N N N N r4 N N N N N Lf1 Ln Ln
1-1 r-I ri r-I e-1 -q ri ri -1 -4 a--I -1 -1 e-1 ri ei ci r-I ri
t
d
O
~-1
O o 0 0 0 0 0 0 0 ° 0 0 0 0 0 0 0 0 0 °
N \ \ \ \ \ \ \ \ \ o \ o ° \ \ o \ \ o \ \ \ \ \ \ 0 o
M (l LI) .--I N L1) N N l0 O C LD O r\ ri N Ln Ln ci M N N O 00
0 O O O e-I 14 a--I r-1 ei L-i N e-1 r-I O ri O O i--I N r-I m m O .--1 a-i r-I a-i N 14 -O N
I
'o
J
J J J J J J J J = J J J J J C" J J
V J
J J J J J J J J J J
F a a O a O O O a a N O O O O a a a O O O a a a a a
~ N O O
u
a
a
M W O O '-1 Ln O N O O O O O O O O O O O O O O O O O O O O O O O O
W
I
I-' O
m ~
ei
_I
a O_ a a O_ O_ a U a a a a a a O_ G_ D_ O_ a a a a- a s m O_ d a d a
U U U U U U U> U U U U U U U U U U U U U U U U U U U U U U
Y > > > > > > > o > > > > > > > > > > > > > > > > > > > > > >
m
E
III LO Lf) C) n a,
00 00 W o0 00 00 W 00 00 00 00 00 00 00 Ln
N w ^ LA LO w w O LO l0 LO (.0 LD lD lD LD LD LO LO Lo w w LD w w LO Ln
C m Dl M m a) m O a) O) m m Ol 41 Ol m m m m m m m m m m Q) m
ri r-I -q _I eH ei r4 e-1 ei ei -1 r'i e-I ei r-I ri ri
OJ > } z z z z U` z z z z F- H H f- H H H F- F Z
~ o a a a a a a a a U 0 0 0 U U U U U U U U U U
z a 0 z z 0 0 0 0 0 0 0 0 0 0 0,
a`r
LD LO LD 00 00 00 00 OO 00 00 00 O 00 0 0 N N N N N N N N N N N Ln LA Ln
0
= 00 O
V Ln O m co r` r` O) O) 0 M M N oo r, N M M Ln O LO Q) m M W Ln n m
Z N^ m V V m-i N N co l0 N c^ lD -ii ro ON -1 ci N M I, a) chi O O M -1 LLn M
W
J
0
I
W Ln co ^ ^ M t.0 O 00 -zr Q) O O Ln lD I~ co ~ -1 L/1 O)
00 ~ LD N
In Ln Ln lf1 l0 LO l1) r, lf) in L() O) LO ci Ln lD m r, 00 m O) M V m V) Ln co co
.-i .--I N L--1 lD l0 lD M lD I'D M M m M m M
-i a--I I~ ^ ^ O m I~ L!) O O .-i .-I - m m Ln I~ I~ Ql C3) Ol M 1~ O
M u) Ln m LD N N m LO LO r1 rl r-1 M m ci N V
W
LL W
F ~
Q C
O
u
W 01 0J QJ N N 0) C
vv 01 v O) 0) N 0) 0) 0) 0) 4) OJ O) 0) OJ N 0) O) N 01 N 0) 0)
d Cl d d d d d d d d d d d d d is d d d d d d d d d d d d d d d C
F d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d 0
to N a) ai v a) a) a) a) a w a) v v 0J v a) a) v a) a) v a) 01 0) a) v v v a) U
O E _d _d _d _d _d _d _d _d _d _d _d _d _d _d _d
U Z O O 7 7 7 O 7 7 O 7 7 7 O 7 7 O O 7 7 7 O 7 7 7 7 7 7 7 7 u
u U U U U U u u U U u u U U U U U U U U U U U U U U U U U U ro
W d
D- z Ln
a 61 3 m
O c"n Ln H
u
m 00 v m m m to r~ m ui oo m to to n v m m r, v m 0 00 0o ui v o 00 0 m m o n m m m o o m
Y O -1 N a--I m O M N m n V O O nIZI: tD O tD N n 00 V m VI OO N to N O O O u1 00 V -1 O O 'I
N
M O In e--I M V r\ 00 V In tD tD N m tD M 00 N r, In V ei In r\ c-I m rl N O O In W W TT r~ V r- O O r\
0 ti m M n t\ lD rLr) c-1 O V 00 l0 O M N OLrj N - W 00 M tD to N n t\ N C Cr) O O 11 M to V) O to
ul tD M O m M cT 1'1V N V1 In .-I 00 t\ N r 1i \D m m O V m r\ V r 00 V m r"tD O m m O V O a
r~ 00 O m to M 00 M M O to N N O N r-I M r1 M O n M 00 1~l N V m rl V M M O N O O O
Y V1 N M rl " M r\ N N N to if} N Vl Vn N in W Ln In M N M M 11 Vn VT tM1 N M r` V m 111 O
0 V} Vn Vn VT V} V1 Vn to VT to V} to V} to V} in V} V} VT V} V} VT V} V} V} Vl to V} Vn ~ r
H ~
to
o O
0 0 o lo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 co m W o0 00 O O
~y O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O V V V V o o
J o 0 0 0 0 0 0 0 0 0 0 6(=; 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o m m M m m L no
N N rl ci N N N .--I r-I N N c-i ri a-I N rl r-I N N .--1 N N N r-1 N N c-I N N N N N VT Vl
1R .--1 r-I r-I N N c-I r-I N N N .--I rl N N N .--1 N N c-I N N c-I V c) r-1 N f c-1
V} VT V? V} Vf V} V} V} V? VT V. V? V? in VT Vl V) VT V? V} V} VT V1 V} V) VT VT V1 V} V? VT V} VF VT VT VL ~
V}
m
dl tD tp to to lD to tD l0 LD tD 1o to LD tD tD tD l0 to l0 tD t0 w w to to w to w tD to - 00 00 00 00 00
A
r
a 0 10
N o o 0 0 0 0 0 0 0 0 0 o o^ 0 0 0 \ o N 00 M o ~--i In f\
CI O O O O O O O O O O O O O O O N O O O V N O O O O O O M M N N V M m
I
a
J
M V J J J J J J J J J J J J J J J J J J J J J J J J J J - J J J J J
••a F p O O O O O O p O O O O O O O p r O a p p O p p O O O O H O O F p p p
m m m m m m m m m m co co m co co m n co m m m m m m m m m to m m Ln m m m
u
m ~
a
x n O N O o o trl c) O O O O M rn o 0 0 0 o o o N 0 0 O o o o 0 o 0 0 ti m V
W
p
F
~I
d CL O_ LL d O_ LL d m D_ D_ d d O_ CL d D_ d CL CL O_ LL a. D_ D_ D_ D_ d LL LL d O_ d a. d D_
u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
A
E
m m m m m O m o o o 0 o o o 0 0 m o 0 o o m m m m m m m 0 0 0 o 0 o o
r~ r, rn n rn m r rn r, rn l- rn R R r\ n r\ n n r, n r` n n n n n n n W W n r, n n r\
c m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
al m m m m m co z Z Z Z Z Z Z Z m Z w of m m m m m m m m F-- F Z Z Z Z
w w w w w u w z z z LL z w a D. D_ w w w w w w w w u u a
LL LL LL LL LL Q LL Q LL Q Q Q LL LL LL LL LL LL LL LL O O Q
d
Y
G Col V W to O O tD lp ro ro ro lD to w tD tD lD tD to ID ID tD to ID w tD to ID to tD ID tD 00 00 00 00 00
2a
a
O O
00 m N O d w M rl lD ul O V N N CY M O to M M m m N m - In N N M O O a- N
Vl n 00 V O rt c-1 O O lD O m lD 00 W co r O to to m r` ^ V M f\ f\ f` M
Z N N rl r-1 M n N N m In N N N ~--r M Ln d' V N N m m r-1 N In m
W
J
2
WI a0 m O V m V
y w In tD V n O V w r' m c' `n w^ m No Nm `nlD m •-nI 00n 0 O m m V Ct rl m to w w w
m m m lD 00 O r~ V d'
O m V o o V V C N m N N N N M-4 co o0 co co W m m to w lp Io n 00 00
to 'I 'n L Ln U N N N N N N N N N N N N N Ln lmn lmn M tDD W N N
Q
W
LL
C
W ~
Q u
H c 0J U1 N 01 N 01 01 01 N 01 Ul 0) 01 01 01 Ol N UJ 0) 0J 01 Ul N N 01 N 01 N OJ 01 N Y N N Y 01 Q
ry A X X X X X X X x X X X X X X X X X X X X X X X X X X X X X X X X X X X X u
N N 61 N Q1 N Q) 0) N 0) 61 a! N 01 N N Q! N Ol 61 N 01 N Q1 01 0) 4! 0) 01 v in 0 Ul O1 N 0/
~ Z O O O O O 0 O O O O 0 0 O O O 0 O O O O O O O O O O O O O O O O O O O O N
p a Z
u w n
oc
W
aj (D
Y
W N 1n
Q
,It W .--i Ln LO N I:T O N N V W 1, ri I~ lb ri 1~ n Ln O lD O1 r-I O1 O Ln l0 M lb N 00 O ri
r;3- ri I- 'tT N m i- n 00 n N O M M N W W rl N M M e-1 W M M ri V LD ri O ri V N M i--1
LO czr N (-4 N 00 rA N O) W ri O O LO Ln i- LT O Ln V O M ct O M LT Ln ;T -::r qzj- N LO m LO m O
0 N Ln V r, W to O 00 n 00 00 W M O) O LO (.0 00 CT ri O) Ln 00 I, W ri LD M M W I- Q) V 00 LD LD
u 00 ri m O Q) Ln 00 T 00 r1 N Lb ri LO V ri oo c O Ln F, w 00 w m a) Lb Ln N V Ln Ln m M M
LO O Ln O ri O N W LD M N LI) M N 00 N r-I [f M V Ln V (D Lf) N Lf) O Ln W W 00 Ln 00 O O N
M -:T M M -1 N V} V)- Rzr M N L1) ri N V} V -:T V} r-I V} M M LO .-i LO N ri V} N ri N V} r-I M M N
Q V} V} V} t4 t4 V} V} V} in V} i^ ri VT V1 V} V? VT V} in V. V} to t4 V} V} V) V? V? V-
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 00 00 O O O
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
J O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
ri r-I ri ri r-1 r-I r-I ri ri ri ri ri ri ri ri ri ri ri ci r-1 ri -1 r-I -1 r-I ri r-1 ri
V1 ri ri r-I r-1 ri e-i ri ri r-I ri ri ri r-I r-I r-I r-I r-I ri ri ri e-1 ri r-I ri r-I ri ri ri r-I ri
V} V} V} V} V? Vi• V} V} V) t4 V? V} V} V} V} in (A V)- V} V)- V) V). V4 V? V} V} V} V} V} V} V} V> V} V} V}
LO
10 I
LO LD LO LO LD LD lD LD LO LO LD LD W W LD LO LD LO LO LD LO LO W LD LO LO LD W LO LO LD LO LO LD LO LO
t
d
L
O
ri
N R oo\° o o o o\°\° o\° 0 0 0 0 0 0\° o\° 0 0 0 0 0 0 0 0\° 0 0 o o\° o\° o\° o
01 O O 00 O O ri N N O M N O O O O O O O O O O O O O O O O O O O O O O O O
I
J
V J LL J J J J J J J J J J J J J J J J J J FW- 0LL v~i Q m LLI) LI)) N Ul m 00 0 m m LLnn O O LLn O M LLnn m m LI)) N m m V)) m Vim) v~) L~/) m m m m
U
Q
CL
W ri O N r-I r-I ri N 00 i- O Ln LO O N Ln M rN-1 0 ri O O O-1 O O O N O n1 0 0 LD LD ri ri
I
H
m O
H
m I
a a 0_ 0_ L1 L1 d a D_ a a D- U 0_ 0_ L1 L1 0_ a a. U a. D- U U m 0- U d m a U U U U U
U U U U U U U U U U U U> U U U U U U U> U U>> U U> U U U>>>>>
> > > > > > > > > > > > m > > > > > > > o > > o o > > o > > > o 0 0 0 0
X ~
W £
Y m Ln m m m m L.n Ln N m lD lD N N
Ln Ln Ln Ln Ln m Ln Ln 00 00 Ln
m m m m m m (n m MO) M D) 00000
= Y
r-I r-I ri ri vi r-i r-I r-I ri ri r-I ri N N N N N
4J Z Z Z Z Z Z Z Cf z Z Z J Z Z Z Z Z
A O O Q Q Q Q Q Q Q Q
v
M
C CE KT KT ;T It ;T LO LD W LO LD LD LD LD W LD LO W LO LO W LO W W LD LO LO LO LO LD W LO LO LD LO LO LO
f0
Ln Ln ri m m r, Ln (n LD N M 00 V Ln M ri ^ M ri Ln Ln W N N LD O co o O I- LO LO V
m w N 1, o w r,4 Lf1 N O O O i\ LO a) co 00 -4 N ri O I, m M Lfl LD w n i\ O -;;r 0) Ln Ln
Z m m m N ri ri It m N m ri 1^ M M M ri m M w ri m fV N ri N r I N N N
14 W
J
2
ui O) O Ln i\ O) m O Ln LO L-
lD DO N O) m r' cn i' 00 m r-1 N
Ln Lb N M 0' Ln M M Ln ri N M V Ln r-I N ~ ~ Ln r- rl 00 M t/1 co co O c-I lD LD lD
O N .--I M -zr O O O O ri I~ n N m m ri Ln M W LD n Cr) M O N N N N N V Ct M M M
a M ci r-I r-I N M M m m m m m m fn f~'I fn m r-I ri N M m m M M -zt N N M M M-:3- -zr a' V V
W
W LL
CQ
L
ui
L~/) L L L L L L L t .C L L L t L L t L t L L S L L t L L L L r S L L L
O
V C N N lU N 0J QJ 01 N 41 01 lL N lL lL N lU v N lU lL N N N lU N v N N N 0J v lL N N N 01
G Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
= Z U0 d0 CD 00 bA U0 bD 00 00 L)D bD h0 00 UD 00 UD 00 UD OO 00 00 U0 00 OD M U0 UD M 0D 00 00 U0 l10 OD 00 0D
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
d to In to N V1 lA Vf N lA !n !n l/f lA In V1 In (n !n to lA to lA N lA N lA to In lA N N to to lA N to
W f0 f6 f0 f0 f0 fa f6 (0 f0 f0 f6 (0 fQ f6 f0 f6 f0 f6 f0 f6 N f6 (6 f6 (0 f0 fO (O f0 (0 N f6 f6 l6 (6 (6
~ W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
Q
Q
F -
(A
Q
W
M Ln -4 M O m:1- -4 O m LD r, 'T Ln O O m
f, r-1 n w 00 LD m LD O O m O LD r1 O O ei
4 V1 6 Q1 Ln V t` N O Ln O N O 4 O O
C rn O ~ -:t Ln -It r-i 00 O r` rn am M 00 O O 00
ul W M rn 00 LD 00 tt O N r, Ln N 00 * O O C
Lri -q -i ~T N 00 LD M N a; O m -4 r- O Ln N
V} to N to t4 ~t ih M Vt• -1 c-1 try N -4 Ln m Ln
0 V1 V? V1 Vn in i!F N Ln a-1 M
H r th V>• a-1
V) ih
O O
0 0 0 0 0 0 0 0 0 00 00 00 O 0 0
LL O O O O O O O O O W O O
J O O O O o O O O O m m m v V) O
e-i c-1 r-I r-1 -4 ci -1 ci a-1 N N N V V} Ln
vi- .--I ri r1 ri -4 rt -1 rl -1 a--1 -1 r-I e--I r_z
in in-in V} t4 V} V} V} V} V} V} V} V} V}
f0
'o
.I LD W W W lD lD W W W o0 00 00 N
(4
L
0)
O
e-1
N o 0 0 o o o o x
~I O O O O N O 0 0 0 r- 00 r
I
J
Q
LL.
O H O H O O O H F- I- H H
co Ln co Ln M LL LL Ln V) Ln Ln Ln
u
Q
a
W O O D r1 -1 -1 O O O O O O
I
F-
m ~
H
_I
0 u u u d 0L u u u a u u u u
> > > u u > > > > > > >
X +d, D o D>> o d m m D_ D_ D
m
W E
IZT Ln W N N N lD
C O O O m M D O O M
-I N N N ci r1 N N N _I
d Z Z Z Z J Z Z Z~
t"0 Q Q Q ~ ~ Q Q Q~
d
w
E W W LD W W LD W LD LD 00 00 00
Ap
O O
CD m
x
r-I
ON W w N Ln O
Lf1 eN-I LT ~ N V m O
Z e-t ~ M rl .--I
W
J
- CD
0
WI w m;T 1\ w m v Ln r- -1 MZzr 00
LD M M t- t, -1 r-1 r1 V M M W v
M M M W LD ~';t d' M N N N m
M M M m m O O O M Ln Ln Ln M
¢ T m Ln Ln m W W W W m m m W
W
LL
W
a
N
O
W
V c7 ch u
L L L L L L L L L t s
6! O_ d D. D_ d O_ a 0_ O_ O_ d 0 m _ d ~
u E N DJ N tU D1 w w w Di a a N ai O
Y Y Y Y Y Y Y Y Y Y Y Y Y u
z OD OD 0D OD OD 00 to tXO W 0D OD UD t1D
2 Y Y Y Y Y Y Y Y Y Y Y Y Y L
to N N 0 u
d N lIl to In V1 N t/1 N In
W f0 m m tD m m m t0 m t0 f0 ra m Q
W W W W W W W W W W W W W C
Q Q~ L^
v 3
~ Y
Q N LEI
W
r-i m 0 0 00 oo m LD m 0 In zT i- 0 0 f\
v d 1, . -i 1, n w m a -1 O N -1 00 Q1 O O O1
H N O 4 Ln m LD l0 LD O M m rn of lD O O Lo
U N O am 00 Ln I;f LD M 00 m 00 rn rn O O O O
O N m -i -~t o0 Ln oo r y) F -i -zt o O -
Ln LD i, N 01 r, r, M N 00 'T Ln O cn
M A/). M M V1 -1 Ct « N -1 N N N 1- Ln d*
0 -Ln -C? to V} to -tn t/? i/} -Ln -LI). M r-I c-i to
i!F ~ t/'F V►
H
0 C)
0 0 0 0 0 0 0 0 0 0 0o N N O C)
LL 0 0 0 0 0 0 0 0 0 0 r-I O O
J O O O O O O O O O O M 4 Ln O
,q -1 c-I r-I e-A -I .-i r-I -1 -1 N M m to Ln
40, L--I r1 . i L--1 c-i rl r-I r-i r-I c-I e-I r-I c i
AR
~I LD LD lD LD LD W w LD w LO 00 O O
LO
t
d
O
N o 0 0 o\° o 0 0 0 0 0 L
1 0 0 0 0 0 0 0 0 0 0 0 -1
0 N a-i -I
I
J
V J J J J J J J J J J
O O O O O O O O O H F- O
m m m m m m Ln LL LL M Ln Ln m
U
Q
a
W O O r4 -4 N O-;T 0 0 c-I r-i O O
a'
I
H
O
H
m ~
I CL CL
U U U U U U U U> U U U U
> > > > > >
m D_ D_ a a D. a > n_ > > >
_ E
X
W Lea co
LD
c ~
U
m O
d
a+
O o
w lD w lD w w W w lD W o0
0
= O O
O O
Ln r-' co 0 IN -I M O N m
Z M ^ N M L~-i t^ N ~ N
W
J
0
W I co LD I- O N
LD <D r, LO i- co dl cn LO N 00
M 1, r, m N N Ln V) O m (n Ln
m
M m
-tt
1-1 M M M d Ln Q) Dl
Q M Ln Ln LD
W
W LL
CQ
G Ln
N O_
W
Ln m Ln m m m Ln Ln Ln Ln Ln Ln Ln U
L L L t L t L L L L L L t
O o a a a a m m m o_ LL a m m c
u a v v wl w E a v v v a v v O
LA LO M m ra ra m to to ra to r0 La r0 r6
S Z CO o0 OD bn W 00 00 00 00 d0 oA W 00 ` 6/
d 0 LA Ln 0 Ln Ln Ln Ln Ln Ln L" N In
W (0 (6 (0 (6 (0 (6 f6 (6 f0 f6 (6 (0 f0
W W W W W W W W W W W W W cl
a) O)
a cc Ln
/A L
Q N Ln H
W
m w O rl N C O ID 00 N O1 r m m N V LD C O O Q O N N n M N Vl 1~ a0 V n O O O O O
N Cl O M O N Ln N lD Vl 1- V lD M lD 00 00 M Gl O Ol M O O Cl) to r C1 rn V Ln Ln Vi 00 M M V 1, O O O O
V' o0 06 O-zf m v w r, m N o 1- M V Ln rl a w Vt o V N O N m V N 1, w m m Ln c lD w m V N O O H
Ln O O LD Cr) V1 Ln V N 00 1, M N V1 00 00 00 N V1 M m Ln m 00 W V LD O N CO I- LD Ln Ln w T Q1 O O 0%
ul N V1 1-, O V N N C) O ID L-1 N m 0 1, O m t\ Ln V 00 X 0 0 V V O O N rn VI Ll m ri N 1, D o n
W V l0 r\ oo N 1, Lri C LS Lr M lD r-: L6 m M .--Z C 00 N V 00 Lri 00 n Lr Lr O n 06 m o Lri l0 r; Lr O O vt
Ln v m vl} 14 n V V Vl v Vi V V} ri N N rl N N N N Ln t-i V N N N N N N to " N n Vt V) V? N m Vl N
V? VT Vti VT VT IA' in V} liv to in V} V) V>• V/ V! V? to V1 VT Vt V} V} V* V} Vl to i4 V} V} V} Vf N V) ei Oi1
r ~ VT V} ~
Vn u}
0 0 0 0 0 0 0 0 0 0 0 01010 0 0 0 0 0 0 0 0 0 00 co 00 W 00 00 W W 00 00 W W W a0 O O
y O O O O O O O O O O O O O O O O O O O O O O O V V V V V V V V V V V V ? a C) 0
o 0 0 0 0 0 0 0 0 0 0 0 0 o 0 o O O Q O O o o m m m m m m m m m m m m m m Ln O
N N .--1 1i ri N rl fi N N N ri .--1 N r-I r1 - N r-1 ci N N L--I N N N N N N N N N N N N N N Vl V1
.--I N " -4 1•1 e " -1 14 e r r r•1 N r-I " N N " ei N N e-I ei N N N r-I -1 rA ' e a " e r -1 L--I
V} V} VT V) V? VT V} V} V} VT in V} Vl t4 V} V} V? V} VT V? V) VT VT V) V} V? V1 V} VL V) V? VT Vt V} V) V} to VT
f0
~I LD LD LD LD LD LD LD LD LD w LD LD LD tD LD lD LD W LO LO LD LO LO 00 00 00 00 00 co 00 00 - 00 00 00 00 W
LO
L
d
O
N
N o o 0 0 0 o o o o o o o o \ o 0 0 0 0 0~° a° o o a \ p
10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cl m m Ln co 0 0 0 n V Ln M M
Q e-1 N a--1 N N N N N .--I N e-I N
I
13
QJ
(,J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J
m m m ~i m m m m m O m N 0 0 0 0 0 0 0 0 0 0 a Om o a 0 0 a Oo O O O O 3
co
u
m ~
a
a
W O R m 0 0 0 N O m N ri 0 0 0 0 0 '-1 0 0 0 0 0 0 e-I L--1 0 0 0 0 0 0 0 0 0 0 0 0
I
W o
'•L1
U a a a a a U a a a a CL a a U U U U u u u u a a a a a a a a a a CL a a a a
v a > > > > > d > > > > > > > a a d d d d d a > > > > > > > > > o > > > a o
m
E
t\ t\ f\ n n n ^ n f\ n O LD
vYL 1~ n lD l0 tD LD ^ 1~ 00 00 O1 0 Q)
Ol
C Q\ Q1 O1 O1 O1 m m m m 1 Q1 Q1 C) Ol M M C) O1 Ol C1 O1
•-I N L--I W e-t r-I N N t-i N N e•1 0 0) C) N M
O O N N N N W O 1~ n co M ,n O M Q 0 moo"
Ol F- F C K C K F Z Z U' Y Y F- Y u Y F K K
u u a a a a Q U O¢ a U Q G U Q U K a a 0 0
N 'OD
o o a a a a g o a g o 2 o o o o a a z z
I'D. O lD w w LO LD w - - - lD lD lD lp lD <0 LD lD lD Iw lD lD co 00 00 00 CO 00 W 00 00 00 00 00 00 00
E
v
= o0 00
~ N N N O V <D N r-I m 1~ N h I~ O V M O V1 Cl n V1 N 1l n N n m c•1 O1 Cl " M 0 O c-I
N O M lD Vl m r-1 Q1 N O (n to lp Ln a-I a) N Vl f\ M Q7 W N N O O C M 1' to N 00
Z lit V M^ A w V CY V 1 Ln M~ L--1 N N ID N a-I N N E 11 M N N N N N N N Ln V
W
J
WI
r-1 N M 'zT w N co 00 Q1 N O N c-I N M co M m 10 M O 00 O1 m m m 0~ N V1 M
LD tD m
V ^ 01 M Lo ri C3 m m rn rn V
V M M O M M V1 M V) LO N N M M W CD O M M M M m lD 0 0 N V n n M IC) cn M Ln V1 01 0
M M M V W V1 m m M M V V 1~ n n w O C3 C a Vl 1" m m cy)
N N N N O O M V
F N rl N a--I c-/ '-I c-I N N N N N N N N M m r1 N M M Vl VI Vl Vl LD LO LD W
Q
W
LL
F
LLJ
Z>
C
O
W w w LD w LO w w W w w w W w w w w w LD w w w w w LD w w w w w w w w W LD w to w U
F. L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L
N a a m a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a C
0 E a~ a a v m ai a ai a v ai ' a v a ai a a' a, a m a a a m a a a a a m a a a v a o
U
tD Z 0a YD m Y0 9 OD V ~a 00 YO y0 00 0 Ya OyD y0 YD 00 YO ~0 OD Y0 OD m m V 00 v y0 00 00 YD Yp W m 00 N
N V1 N H N N N N N H N N N N N N . N N N H U
a a o m o o a ra a a m o a o o m a o v o m 0 0 0 0 o m a m m m o m m o a v m
W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W n
r v v
Q CC n
0 v m
Ln
W VI Ll ~
M W LD M d' M O LD W N N Il Ln Il M ri N 1l M ri M c-1 I, LO O m 1- w m O O m m Ln O l0 -;T O
,N T N O ri m r1 ri m m O m 1, r4 -;t V m m m N-:3- d' m O M m m O 00 m LD 00 M L0 m O L0 N O
4 Il N L)0 r-i 1, r1 O r~ 4 r, 4 4 Ln N ri 6 4 M M O N M M O O'It r- M M 4 r-'1 N M O M W O
G O N n LO N ~--1 O N N 00 r-I r-I N h 1, O r- O 00 M LO 1l n N O 1\ 'T C1 zT r- I-T N m-It 00 1- m m
UI m 00 N r1 N w O O 00 00 00 m m r, N N w m 00 N LD I, Ln t.0 m m Ln 00 00 N r-I V m m r4 m
N I- N :I- LD rn V -1 r-I Lo V ri 00 ri 00 LO m N O lD Ln I, N 00 V w m m m r-4 m m N m -1 i--1 m ri
m N r-I N Ln m O O N V). m ri m-:T N m m t/} M w N N1;3* N M N N m ri V} 14 t/) V) V} ri to IA
C V? 4 N t/} V} V} -1 r n t/? in V} Q)- In t4 i/} V} t/? V} V} V) V} V} t/? V} V} in V? i/}
~ V? th
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
J O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
r-I r1 ci r1 e-1 ri ri ri r1 r1 ri r-I ri ri r-i -I r-I -I r-I ri ri r-I ri r1 r1 ri -I ri J I r1 ri r-I ri r1 r-I ri r-I r-I
th r1 r1 -1 ri ri ri r1 ri r1 ri ri r1 ri r-I r-I ri ri ri r-I r-I ri r-I ri ri ri ri r1 r-1 r1 r1 ri r1 r-I ri r1 r-I ri r1
V} V} V} V? V} t/} V} V} V) V} t/} V} V} to V} V} V} V} Vf- V) to V} V} V)• V} t/) VT V} if)- V} V} t/} V1. V? t!} V} V} VT
TO
.a
. LO LO LD LO 1.0 LO LD LO m w LD LO LO w W LD LO LO LD W LO W W LD LO W LD LO W 1.0 LD LO LO w LD w w LO
I
m
t
N
O
ri
o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
\
f'V \ \ \ \ 0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ol
GI O O 00 O O O O O O O O O O O O O O O O O O O O O O O O O O O m O co 000
I
J
U ) J J J LL J J J J J K d' O' J J J J LY w CC M= m m = J 0'
LLL LLL (A LLnn O O LLn c~i1 LLn O O OLL LLnn 00 Ln N L~i1 (A Ul V) G LLnn O m O O V) Lr)i U) (A L~n LA V) v~i m 01) L LL. LL LL LL U
Q
a
W c-I O O r1 N O O O O O r-I 0 0 0 0 0 0 0 ri O O O O m N r-1 ri O O O O O 1-1 -1 r-I O O
I
m O
ri
m
~ o_ d U o_ o_ LL CL D. o_ o_ a o_ a o_ D_ a o_ o_ o_ o_ o_ o_ n. LL o_ o_ o_ a a o_ o_ o_ o_ o_ o_ D_ o_ o_
_ u u> u u u u u u u u u u u u u u u u u u u u u u U U U U U U U U U U
X > > m > > > > > > > > > > > > > > > > > > > > > > U > > > > > > > > U > > v
W E
La I~ LD 00 Ln lD Ln Ln w l0 LD I~ N
Ln Ln m 111 111 Ln
F+ Ln Ln w
lf) Ln Ln w Ln m m
N Lf) Ln O'1 Ln Ln m ^ Ln Ln Ln Ln Ln Ln In Ln ^ Ln l0 Ln 00 tll Lf) I- N f\
C rn 01 lT m m m 01 Ol 01 m a, m rn 01 m 01 Cl) O1 Ol m m Ql LT m m Ql Ql Ol 01
ri r-I .--I r1 ri 1-1 r-1 r-I ri r♦ ri ri ri r-I ri rl `'4 -1 r♦ ri r-I e-1 ri -1 r-1 ri " ri
d Z Z m z Z Z J > Z Z Z Z Z Z Z Z> Z F- Z Z J Z Z m m m>>
Mm LL Z Z ~ O Q LL LL LL Z Z
61
41
(D l0 l0 LD l0 LO LD lD LD LD LO LD LD LD W LD LD LO LD LD LO LO LO LO LO LO LD LO LO W W LD W W LO LO W LD LD
E
LO
H Ln O M LO r-I Ii - lO r-I f- 1- m t.0 O :Zr 1~ r-I 0) Ln 00 00 ri -It N 00 M M LO 00 O 00 01 O 00
m m ri N r., O W N Ql Ln ri O Ln 1~ LO M m 00 O M-;t 00 LO r+ V ri LO N N M W N M ri O M r-I
Z N N ri N Ln 01 m a) -1 rn r-I M m N fn M N N LO " N co N M N N M ri Ct ri
W
J
2 ro LD r- 00 0) LU -4 M O N M-:t M O V W M~* M O ri M-:t N m ri lT O r-I `"'1 N O O O O O
01 rl Ln LO (n O N N N N N m ^ m m m m N M M N O O M O O O O co m 00 I~ O ri rl Ln m
M r-I M Ln Ln Lf) Ln Ln N M M M m m m m M-zT m m m LO W LO W w 00 LD 1- n r, n
r- O O O O O
1 ri r -I r1 -1 ri N N N N N N N N N N N N N M M M M M m W LO W W LD
Q
W
LL
W
CQ
L
H
W L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L
~ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U
LA d O O O O O O O O O O O O O O _O O O O O O O O O O O O O O _O O O O O O O O O O
O E 7 7 7 7 75 7 7 7 7 75 7 7 7 3 7 7 7 7 7 7 Z) 7 7 7 7 7 D 7 7 n 7 7 7 7 7 D
U m u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
= Z u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
u 2 2 2 2~i 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2i 2 2 2 2 2 2i 2 2 2 2
O
J
J
D
U
u
m m I- N - t o LD o Ql W m r Ln m o o o o o
i+ ^ m In r-4 m O I- O m N V N~* 00 Ln O O LM
~ M lD m W 00 O 00 a-I O M lD ~ ~ lD 00 ri O O ri
0 N N Ln O N O ri N n O M M n W N ri Lf) O W
L71 m O -zT O) N 00 00 w m 00 m V Lf) 0) -1 ri I- Ln m
r-I LD N 00 O W ' 00 O F 00 00 ' ' 0) N 00 LD
i+ ri O V? V} N a) lD V} M LD ~T M N V n ri r-I 00 ri
C V? ri V} V} 1^ V} V} V} V} V'T V} in 00 00 N 01
~ i./} r'~ V} t/} N
V} 4A
O O O O O O O O O N N N N N N Cl O
~y 0 0 0 0 0 0 0 0 0 ri r 1 ri ri r I 0 0
0 0 0 0 0 0 0 0 0 d' V-tT V~ -:t Ln O
r-1 -I r-1 -I c-1 e-1 ri ri r-I M M m m m m V} Ln
r-i ri r-I r-I r-1 ri r-1 ri ri -1 c-i -I r-I
V} V} V}ih V} V?tn to V) V} VT trF V}V?tn
tn•
f0
13
w w w w w lD w (.D w O O O O O O
r-I a-i ri e--1 ri ci
f6
s
a
0
N o\° 0 0 0 o O CY) E N O 0000
OI O O O O O O O O O O W W ^ O
I
J
Q
cr w J J J J ~ J J J ~ J
Ln t~n m m O LL LL LL LL LL O V) 0 0 0 a a N a m
u
Q
CL
W O r-I O O i- 0 0 0 0 0 0 0 0
I
m O
H ~
m I
a o 0 0 0 0 o U o 0 0_ a a a M
U U U U U U> U U U U U U U
X > > U > > > > o > > > > > > >
LJJ E
FfO ^ Ln m Ln 00 W lD Ln Ln M Ln M Ln
C 0) 0) 0, m 0) 0) m m m m m m m
a--I r-1 ri r-I 1-I .--I ri ri ri -4
dl > Z Z Z Z Z Z Z Z Z Z
°z > > > a o o > > > > > >
d LD W 0 0 0 0 0 0
E ri ri ri ri ri
0
v
x r- m
F- 00 "t r-4 O 0) 00 w -~t O M u 1 O w
O lD 00 00 00 N 00 lD 00 00 M m i....00 l
Z H 0) N r-I 00 Ln ^ N K* M N r-I m Ln
W
J
2
W I H O rl N O r'i r, m O m LD m O m
ri Ln Ln Ln m m ri ri N r-I O O 00 Ol lD
I\ N N N m m 0 0 0 r W W w m w
O N N N m m~~ K* Ln
Q LD LD LD W W W W W LD N N fV N M
W
LL
W
N
Q
O
F-
U
W L L L L L L L L L L L L L L L 41
U U U U u u u u u u u u u U U O
ttA w O O O O O O O O O O O O O O O 00
O c 7 7 7 7 7 7 7 7 7 7 7 7 7 U
U U U U U U U U U U U U U U U U 41
x z u u u u u u u u u u u u u u u u
v 2 2 2 2 2 2 2 2 FU
CL i
O a
) v
J cr- W
a' 3 m
,
u v
Lo V) H
v -t ri m r, 00 V r~ ri ri m m I~T 00 m 1~ m LD 0 0 00
r-I I-T W ri O O m m Ln W LD m m m O M N ri O O C
L~iL 00 W LD W m LO O rl r, m m m 1\ m r-I r- N W
O 00 LD 00 N r~ O O N w r- ri w r ri m w O
v Ln w m w ri w O ri m m ri r v O O Ln O ° a
u °
O
n g m 6r-: U~ 4 m 4 N m N m Ln ll:~ N Ln
f0 r~ LO r, 0 ct O ri O ri W Ln m m r" m O^^ M
Ln ;t -zt ~i' ~T N O ri 00 LO m N 1-1 N oo t* ri vt• Ln
O O 00 Ln ri ri m r-4 N m Ln r, 00 Ln Ln ri 00 00 y}
H ri 00 ri I:t r-I 00 ri r-I N ri N ri N r-I m r-I N
0 C)
O O
LLO O O O O O O O O O O O O O O O m 0C)
~ ri .-I ri ri e-1 ri ri ri ri r•i ri r-I ri ri ri ri N Ln O
ri ri c-I ri c-I rl ri ri r-I r-I ri ri ri ri ri ri r-1 in- Ln
ri
ih
m
.QI l0 LD w lD LO w LD LD LO LD LD LO w LO LD w 00
m
t
a
L
O
r-1
O O O O O O O O O O O O O O O O O R
CI O O O O O O O O O O O O O O O O m 1-1
I
J -J of -J
m J J O F- F- F- a F- d a F- F- a 0 F- a
N a a m Ln Ln N Ln N Ln m N
u
a
W O O O N ri O O O O r-I O O O O ri r-I O
I
F-
O
m ~I
m U U a a a a CL a U u a n. a a a a 0-
F- U U U U U>> U U U U U U
m a a > > > > > a a > > > > > >
W fA 0000 ° INn L°O LOD w LLnn O LOD
c m m m m m m m O m
-I r1 r1 ri ri r-I r1 .-1 N ri
Lu Z co Z m co m Z a m
LL Q LL LL LL Q Ln LL
tU
Y
C~
LO LD w w w w w LO w LD w w w w w w 00
C
0 C)
ri w ~ m 0 LD N O N m w 00 m m
z m O -;t r~ O 11 O r1 ri 't Ln n N m m m Ln 00 Z m ri m 1-1 00 ri ri N r-1 N ri r4 ri ri N ri
W
J
r, m Ln LD
Y.1 m r-I 00 V Ln r-I N rl Ln N m Ln W N N n 00
00 rl O m N rn d O O m L^n 0000 0000 0 0~ ri --1 N
Q r-I N N N ri r-I N N N N~ W M W W N
LD <D LD l0 lD
W
LL
W
Q
O
H U
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
~ 4! t6 (0 f0 (0 N f0 f0 (0 (6 t9 f0 f6 f0 (0 L0 !0 t6 ~
N Lw on on un an un Lw on Lw on ao tin tin on tin en an O
L t t L L L L L L L L t L t L L L
O
U m Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y U
Z L L L L L L L L L L L L L L L
LU O O O O O O O O O O O O O O O O O L v
z z z z Z Z Z Z z z Z z z Z Z Z Z 1p
Q a L
c~ La)
L) L
c 1
v 3
Y
O Ln Ln H
Z
W rl W M t- N M M W t- M W LD N o0 00 r\ Ln m l0 w N O LO r1 e-1 l0 r1 Ln N O O N
~ l0 O l0 00 Ol V rl N lO <0 t~ M O Ln ct Ln M Ln Ln O o0 lO O Vl l0 N t\ M l0 M O O M
O 4 o0 o0 r, r- -Z 4 Ln o0 oo :i M L6 M N a0 LD 4 O N o o N m w rn V ri w O o w
0 0o m m ri oo O o 0o m o0 00 m Ln m v m oo N m rt LD -zzi- r1 N -1 w m -1 m o0 o O o0
00 N M M r-I r1 -zt W W M O W N W r-I M M W N N O W M M W M V m t- O O H
f61 W M 00 LO LO Lo M (D 00 O --ZT rl N lD Ln O t\ n M M O Ln M n LO r- m u') O Ln O Lf
L!) d rl M r-I N N r1 r1 M n -1 Ql• N N Ln W M M r1 M Vl m fV r1 ri M N N N 00 N
V}
0 Vn V} Vl- V? V} V} -Ln Ln V} V} in i/. V? V} V} V} V1 V} V} i/1 to n VL Vn in in V} T ~
H
ih
O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 00 00 00 00 O O
LL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 d' Ct V I:zt O O
O O O O O O O O O O O CD O L7 O O O C) O O O O 0 O m m m m m Ln O
ri r1 r-I r-I r1 r-I rf rl e-- r-I r1 r1 r1 r1 rl r1 r1 r1 r1 rl r-I r1 r1 ri N N N N N V> Ln
rl rl e--I rl e--i rl i--I rl a--1 ri r-I ri r1 e-1 1-1 r-I rl rl 1-1 r1 rl r1 rl r1 14 r-1 rl r1 r1 ~
V} V)• V} V? V} V? V} V) V). V} V/ . V} to N Vn if), V) V? V} V? V). V? V)- in V} V} V} V? to {/'F
L6
.0 LD W LD LO LD LO LD l0 LD W LO LO LO W LO l0 LD LO W LO LD LD LD 1.0 00 00 00 00 00
m
L
d
i
O
o 0 0 0 0 0 0 0 0 0 160, 0 0 0 0 0 0 0 0 0 101, 0 0 0 0 0 0 \ o
01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 L!) Ln M rr rn
I
J
V J J J J J J J J J J J J J J J J J J J J J J
F" O m LA U- m m m m m m m N m m O LLnn m m N Li O Ln v~) LL m m m m m
u
Q
LU 0 r-1 r1 O o O m O o o 14 0 0;T 0 0 0 0 0 r1 0 0 0 r1 M O N N
I
H
O
m ~
I
m o 0 o a U D_ D_ D_ D_ U D_ D_ D_ U D_ D_ D_ d D_ D_ D_ D_ D_ D_ U U U U a-
u U U U> U U U U> U U U> U U U U U U U U U U or U
> > > > d > > > > d > > > d > > > > > > > > > > a D. >
X
W
M m m m m Ln m m rn m rn
N w Lo iD 00 Lo m m W M
LT m LT LT to m rn in 0i rn
rl rl a--I a--I a--I r-I r♦ rl r1
+~+I Q Q Q Q:D Q Q Q Q Q
d
0) lD l0 LO W LO W LO W LO LD LO Lo Lo LO LO LO LO 10 LO 1,0 LD LO LO LD 00 00 00 00 00
E
~a
= o
M 0) (.0 O m o O m r1 N I LT m LO m Ln oo ri m oo m Ln o r1 0 Ln
L7 rl m w m I m ri Ln LD 00 co 0 - m m Ln ri V 0 N N r" O N M V r` ri
Z Ln m rl m r1 N N r-I ri N LD r1 N N N -;t l0 m m 1-1 N m N rl rl r4 N
W
J
2
WI e-I O -1 N Ln Lo r, Lo M O r~ ^ m Zt O 00 m O -t- Ln LD
~ ~ t~ rl rl
1,0 M Ln LO O lb rl rl ri fX) Q) c-I N a-i M M ~ ~ M 00 W N 00 O
Ln Ln N M M Ol Ol O M M t!'1 ri rl rl In Ln
T Ln r1 N N N N N N M 1* ':Zr W M In O O M m M M Ln Ln m m m
rl rl e--I e-I a--I ci N N N N N M m k.0 LO Lo LO 1.D LO Lo Lo I'D
Q
W
LL
H' C
C O
C u
H N
'0 'O "6 "O "O -O "O -O -O "O "O 'O "O -O '+3 -O _0 -O '+3 -O '0 'O "O "O 'a "6 "0 -O -a
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O C
W
H O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 u°
O Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q
0 (1)
O `n
L
v
-
yFO
Ln VQ O I "I
w-t N d' m m m m 1- m OO m m m 0 ri m m n ri 1-1 m m 00 0) m 00 w N h r-I 0)
N .--I w ri w N m Oo m 1, r, r-I w 00 0 O N 1, Ln r-I m m m r-I m N m m o0 00 1, n
1~/f O W V r\ 00 M V O r-1 rn O-It V N--t O N 1, N O n m O M I~ 00 0) N m 1- r-I O m
Q r-I N O Ln I, O 00 N O r\ O 00 -1 LD V 1` m V N V Ln O N m r-I m N m N m m 0
U 00 LD Ln Lrl -cl: Oo Oo R* Ln O -zT M lD N 00 00 O ri Oo rn :I* LA ni Lo m r" I~ O LO N 00
-I M e-4 O Lo N r-1 N 00 lD O ri 111 M 00 -1 M 00 N c-i LO O Ol -zt m LO M r, M m m ri Ln
fQ to N r-I 00 Ln O LO LO V 1, O 1\ O LO M Ql LD LD * N m w ri m N Lo 'Ct w r-I -zt w m
-It N -1 r-I -It M O O W O ri W ri ri m m ri -tzr ri R* N m m 00 Rzr m N ri Lo Ln LO T
0 00 m LD :T ri 00 3- ri 0) Ol 01 Ol r-I LO N N .-I N Lo 00 u1 r-I W 00 O Ln V Ln W
~ N m N m ri W m m N Ln ri ri oo m ri m ri r-I m m N m M~ -:T
LL o 0 0 0 0 0 0 0 0 0 0 0 0 0 o m m m m m m m m m m m m m m rn m m m
ri ri ri ri ri ri r-I r-I ri ri ri ri ri ri -1 N N N N N N N N N N N N N N N N N N
r-I r-I ri r-I r-I ri r-I ri ri r-I ri ri ri ri ri ri r-I ri ri ri r-I r1 r-I r-I ri r-I r-I r-I r-I r-I r-I r-I r-I
m
LI t0 l0 LO Lo Lo LD LD LO w LD LO LD LO lD LD 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
m
L
d
O
rti
N o o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O m 0, all lok 0-1
r-I Ln I~ O C1 r-I
01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 m LO N LD 00 ~ C D) 0) LD .-i ri N N N ri N N
I
.6
J
V J J J J J J J J J J J J J J J J J J J J J J J J J cc fY
mmmLLmmm Nmmmmm Ln m m m m m m m m m m LL LL LL LL O O O m L d Ln
u
a
W O O M N N N .-i O O m 0 r-I N e-i 0 0 0 0 0 0 -zT 0 0 0 0 0 0 0 0 0 ri O O
I
H
m O0
I
0 d d a 0_ o- D_ D_ u d d a a a a 0_ 0_ 0_ 0_ D_ 0_ 0_ m 0_ D_ o_ D_ d d d d m d d
u u u u u u u> u u u u u u u u u u u u u u u u u u u u u u u u u
= r > > > > > > > o_ > > > > > > > > > > > > > > > > > > > > > > > > >
X m
11.1 E
m o 0 0 0 0 0 o O o 0
41 Ol 01 N N m m 00 01 01 Q1 Q1 (n N N O O O O O O1 O1 m 01
N t\ r, Lo r- LD 1~ r\ co 1~ n n N w lD r f\ N r, n N n n n n t` t\ n t\ t\ N N
C Ql m 0) 0) 0) 0) Q1 Ql Ql m m Ql m 01 M 01 0) 01 M Ol M M Ol M M M Ql M Ol Ql Ql O1
•-I ri ri ri ri ri ri ri ri r-I ri ri ri ri r-I ri r-I ri ri ri ri r.1 ri ri ri ri r-I r-1 ri ri
d m Oc o: r cc m m m z== or 0_ cc cc F- H H H r r}} H z cc m m} r}}
o o a a a a a Lu D_ a Q. a a a M a U U U U a a a a U M M M D_ a a a a
10 a a a a a a l~ a a a a a a a o o o o g g o a a a a
(U
'U
E Lo - - - W LD LD lD lD W LO Lo Lo l0 1.0 co 00 00 00 00 co 00 00 00 00 00 W o0 00 00 00 00 00
E
m
x
~ O ri 00 r-I N m LD oo Ln Ln 0 m Ln O rl 0 ^ Ln 1- co D, 1- 0 a, w m m W r-I m w
-4 -1 N a N ~ T N Ln Ln r- ct LO M O Ln 00 Ln v N ri Ln 1- m N 00 Lo Ln r, Lf) ZzT N M M N m m ri m m N~ -~I-lzr r-I ri W N M I r-I ri V r-I N N N^ N M V M
W
J
2
-1
W Ln LO f, O ri O m 00 t.0 Il 00 Ol M 0) O N
c Ln al M t\ N M M O LO n 00 O e1 N 00 O1
Ln Ln Ln N N O Ln m fn M m LO LO n n
O O O ri ri m M m 1:41 -:T ~ Ln O N l0 O O O ri ri _j _j _j - Ln Ln Ln Ln M ~ ~
Lo LO W LO LO W LD Lo ri ri ri c-1 M ~ ri LO w Lo Lo LD lD lD lD ri ri ri 1-4 N N N N
W ¢
~ W
C¢ LL
L
N
W
N N N N N N N N N N N N N N N N N N N N N N N N N N N
Q Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
U m m oz m m m m r0 ra ro m ro m r0 r0 r0 r0 m m m m c0 m ra r0 m m m m m r0 r0 ra
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Y Gi c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c
O E O O o_ o_ o_ o o o o o_ o_ o o o O O O o_ _o o_ o o o o o O O o o O O O O
Z Y a Y i+ Y Y Y Y Y Y Y V i i i Y Y Y Y Y Y Y Y i~ a Y
m
Z r0 ra m m r0 r0 ca c0 m m m m m m m m m m m co r0 c0 m r0 r0 m m co m m r0 m m
O C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C
m m m m m m m m m m m m m m m m m c0 rO m m ro m m m m ca r0 m m m m ro
H d d O_ O_ D- d D_ O_ d d d O_ m O_ d. d m d O_ d O_ O_ 0_ 4- D_ d d d O_ 0_ D. D_ O_ D_
- - - - - - - - - - - - - - - - - - - - - - -
H
QZ
a
Ln wIZT rl m w rl m w -1 m m-i t-D O O ri
O N r\ O 1-1 m ri 0 0 d' r-1 X 0 0 0 0
0 W M lp r-1 d• ~-~T M -1 W M Ln M r, O O O
O r-1 N d N n n N W W Ln '~;r W R O O O M
M LO N d' Ln Ol n V n r-: n Ln w o O Ln
I O1 Ln w N N N 00 -T rn r•i w Ln m Ln
f6 m n N t\ N t N m O Z3, W r•I N ct ao
iN N m m r r\ O M r-1 O M In Ln M N
O V O m r, m w m O Ln ~T N N r-1
H M N N r-I n N N M f\ N -1
O O
LL m m M m M M mZ;r -It Ln Ln lD lD O O
N N N N N N N m m-It :Zr Lrn Ln Ln 0
~y ri r 1 r 1 r1 e 1 r 1 r 1 r ri r 1 r 1 r 1 r 1 in Ln
r-I
f0
00 00 00 00 00 00 00 O O N N M Ln
m r1 r1 r1 r1 rL
L
0)
O
ei
O OR
a 0 0 0 0 0 o 0 0
NI 00 Vl Orn m rn rn Ln LD W N
r-1 M 1-1 ri -1 ri m -1
I
.Q
J
V Q-I J J J J cr J J M J
~ N CO O LL LL LL a 0 0 L~n O LL LL O N LL m Ln
U
Q
a
W O O N ri .-1 O O O O ri O O O
I
H
O
~I
m rO d m a rl M a a U U a a M a
> > U > > > U m d > > > >
X m
LLI
m O O O O O O O It 1* N N N N
01 Q1 lD lD lD lD
Q1 01 O1 Q1 Q1 Ql
K tY
4I Q Q U Q Q U U Q Q
O O O Q Q Q Q
a
o0 00 00 00 00 00 00 0 0 ,N-1 Ln Ln
m
~a
O O
_ Lw
~ 00 Ln am N r- Ol O lD r~ 00 N
n l0 LD N N co LA 00 O N LO m
Z N -I M N -1 rn r-1 -4 m N V -4
W
J
2
.I
W M eI N M rl N M m ri O w V Ln
n Ol Ol Ql m I Ln m O rn am 0) m
Ql Ol Ol m O O rn O m rn rn rn
N N N N N CD C) N M N N N N
W Q
W
CQ LL
L
LA
W ~
en an an en an an en an an
Q Y Y Y Y Y Y Y Y Y Y Y Y Y U
c6 r0 rC rTS r6 r0 r6 (6 r0 l6 r0 c6 f6 N
H O O O O O O O O O O O O O c
Y C C C C C C C C C C C C C C
U
Q E O O O O O O O O O O O O O O
Y N Y Z; Z i,
O m Y z z r Yz Y
Z Z f6 r6 r0 (O r0 (O r0 m m m m m m U
C C C C C C C C C C C C C •m
O ro ra m rc co ra ca ra ro co ra rv ro a i
Q a a a a a a a a a a a a a Of Ln
F
z _m
g
~0-
a
w Ln Ln Ln ri M V l0 m r4 O r'-1 Ln a O N Lo N W m LD N 1~ O Lo 00 oo m V-;t Ln ri Ln ri n O O N
r Ln to 00 1l V 1- r V N V Ln V M O N v N n r! l0 oo Ln O In e•i m O LO ri e-t W V r, o0 V .--I O O L-1
a r-I L17 oo m 0) Ln .--I 1, m n .--1 t oo oo oo m ri r- V R 00 c4 LD 1,: N N .-i O 1~ 01 O LO t0 O r, o O n
00 r O * LO t, M M W O ri ri W 00 M r-4 LO ri .-1 O V M W M N 01 Ln r oo oo n 0) M Ln rl to O O LA
i ri Ln LD W oo O oo Lo O W Ol o q Ln Ln N m r- C O O a
ul Q1 O Ln N N N Ol lD O 00 11'1 N N M r W
~0 Ol Lo Ln Ln m O t11 V Ln N m r4 m oo r+ oo Ln w 01 00 1l V N O Ln O lO Ln I~ Ln O m e'-1 l0 00 Ol O O 01
« UT H N N ri m r-I r♦ V} M N N r1 m V>• m r-1 V M M ri m V V Lo N H m 1n m N N Ln M M oo M oo m
Vl V} v> V) v>• Vl V? V} v} Vl V). Vw V} tn• v~ Vl v} V} vl Vl to Vl v> v) Vl vl V) Vl V). V). V} vl V) Lo H
tn v-, H 6
V!
O O O O O O O O O O O O O O O O O O O O O O O O O O O O o q O O O O O O O
y, O O O O O O O O o O O O O O O O O O O O O O O O O O O O O O O O O O O O O
J o O O O O O O O O O O O O O O O O O O O O O O o O O O O O O O O O O O 111 O
r-I c-I N H N ri ri r-I a--I ri H c-1 N H N H r-I H r-I H ri N r-I r-I r-I rl c-I N ri ri ri r-I V} Vl
ri N e-I N r-I N r-I e•-I a--1 N ri r-I N ri 1 ♦ ri r-I N r-4 N r-I N r-I e•i r-I e-I ri r-I r-I r-4 e-I N r-I
VT V} V} VT Vl v). Vl Vl V} V? V} V? VT V) VT V} VT V} Vl V} Vl V), V! V). V) V} V} VT V} V} VT V} VT V} V).
uT
m
al D lD lD tD lD LO D ID LD lD LD to O w LD LD lD lD lD l0 D lO D 0 D LD lD Lo LO LD lD Lo W D
m
r
v
0
o
N o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 o 0 0 0 0 o 0 o 0 o o 0
O O O O O O O O O O o O O o O O O O O O O O O O O O o O O O O O O O O O
I
J
(aJ J J J J J J J J J J J J J J J J J J J J J J J J J J J
Om F O N O O O O O 0 0 0
LLn LLn Li V~) O d co O co Oco O O O Om O O O Om O O m m
u
I 11
m a
_ a
= L" 0 0 0 0 rt ri O ri ri O rt M N O o 0 ri 0 0 0 r ri 1, r-I o o -1 O o o o r l ri r-I 1~
x rl
W °
~I
m a a a a a a a a a a a a a a a a a a a u a a a a a a u a a a a a a a a
> > > > > > > > > > > > > > u > > > > a > > > > > > > > > > > > > >
m
E
m 00 In l11 Ln Vl Vl Ln Vl w W Ln In N m Ln Ln L!1 Ln Vl Ln
N n Ln Ln Ln m Ln m Ln ^ ^ Ln Ln Ln Ln In In l.Il Ln l11 In
•~I ri r-I ri N r-I ri ci a--I r"1 r-1 r-I N N ri N r-1 N ri ri
ar > z z z z z z z>> z z z z z z z z z z
z
d
M
CE V - tD LO Lo lD LD lD LD LD LO Lo ID Lo ID to w Lo to lD LD lD LD LO lD tD l0 LO t0 LD LD lD Lo LD ID
G
La
s LD ri
~ LD 00 N c-I Ln 01 LO ri f\ Ln 111 o0 m Ql - O - N N
U, I~ M c-I 1~ N m 1~ Q O lD N ry
N M N 1~ m M Ol ri O 1~ V rN-I V Kt 1-4 Ln Ln w ri o0 1, M 0o Ln N M N W N 1~ m Ln N
N V m m
z D ri N N r-I N rl ri r4 N N r I M M ri V M m r m M M Ln c N M M M _I
_i l
W
J
c:, cD
ri N
W Ln r-1 Ln O M M V N O .--I O M N lD O O w Ln n N w m ^ O
O o r, q V V r," a c a Ln q N 0 0 V M O V V V Ln c-1 N O n
F M ri o r, LD w w r, m T LD Lo lD ri M M O M O M a--1 W M N N I W W ri r-4 LD W W m m Q m
Q M M m m m m m N M m m ri m M ~ N m m m ri ri M m m LD m
W
r LL
W
O N H N N N N H N N H N N Y N N Y N n Y N N N Y Y Y N 0
N
L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L O
Uf7 oD oD oD •a) m Lao N Lao Q) L= 00 •00 '00 m'U0 oD 00 0o OD o0 •00 .op uo 0a o0 m o0 m oD oD 0o U0 00 00 .op o0 .Up 0o u
' •a) a) a) a) a) •a) a) a) •Q) .w w •a) a) a) a) a) a w a) m
x •c a 'Q) a . ' 'Q) U) 4) a) Q1 'v 'Ql y
V. 2 2 2 S S S 2= 2 2 2 2 2 2 2 2 2= S 2 2 2 2 2 2 2 2 2 S 2= 2 S S 2
d
W 3 3 3 3 3 3 al 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 a) 3 a) 0
x M v v v a, v v v v v v v v v v a) v v v v v v v v a, v v v v a, a v v v a) v u
3 z > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
W I
v v mn 'Z
(u a) v a D v v a) U N ) T dJ N Q1 N N T v v a v v v v v v v v v a (L) 1)
pC a a a a a a a a a a a a a a a a a a a a a a a a a a a a d a LL a a a a 3_
a ra
o
LA u
a
M lD O lO 00 N m N to M N N M ~i Ln Ql r~ <D N a--i M ao M o0 O O
da m-U m m o O-~t w m w r-i 0o o O ri Ln V w m o w Ln r1 Ln m m o o o O
N N rn v Vl a, O Lb ul om r--: am 4 4 rn r-~ M lD w O ui u, u, N M oo Ln m O o M
C w u1 O-4 oo u) r- w N Ln O Ln lD 4 r, n -4 N Ln cr m F, m O c-I M-zt m o o m
V I a-i t\ m N m N N O -;t V m m O r1 r1 Cr w N N 00 r1 r1 N m' I M m O O O O
Ln Lr N M m O of M oo r-~ oo r-ri N N rl O lD rn V N P, oo rn N r. N Ln Ln N
ar V} 00 M Ln N r-1 T* M r-I M N V} ul M N rl M m r♦ M r-I m N N r1 N ei 00 00 N M
C in V} V} V} V} V} V} V} V} V} V} V} V} V). V} V} V} V} V) V} V) V} V). V} Vl r~ m N M
~ V~ V1• V) ~
i/}0
0 C:)
O O O O O O O O O O O O O O O O O O O O O O O O O O o O O
LL O O o O O O o O O O O o o O O o O O O O o O O O O O O O O
J O o O O O O O O O O O O O O O O O O O O o O O O o O O u) o
r-I r1 -I r1 ,--I r1 r1 rl e--i .--I r1 r-I r1 .--L r1 r1 c-1 r1 Jq r1 r1 r1 .--1 r1 r1 r1 -1 in. u1
r1 -I I -i r1 r-I r1 r-1 -I r1 -I r1 1 -1 r1 -1 rI rI rI -I -1 rI -4 c-i r1 -1 ~
to to V} V} VL t/} V} V} V? V} V} V} -tn V)- V? in V} V? i/'~ V1 V)- V} Vn in Va Vn io V}
m
is
l0 w LO w w w w w w w LD w LO LD w w lp w w LO 'D LO LD LD LO lO lD
f0
t
a)
L
O
r•I
O
N o 0 0 0 0 0 0 0 0 I.R 0 0 0 0 0 0 0 0 0 0 0 o o o
QI O O O o O O O O O o O O O o O O O O O O O o o O o O O
I
J
J J J J J J J J J J J J J J J J J J J J J J J J J
V
O O O O O O O O O O O O O O O O a 0 0 0 0 a 0 0 0 0 0
m m m m LL m m m m m m m m m m LL M LL m m m m m m m
a
V
5
Q
CL
W O N O e-i o O Ln c w u1 rl o O r1 N O r-1 ri o o c) N o o 0 o o
I
H
O
H
m ~
_I
a LL U D_ a a CL U O_ O_ O_ a d O_ O_ IZ a a a LL a a. n. D_ U U a
L U U> U U U U> U U U U U U U U U U U U U U U U>> U
m ,01, > > a > > > > a > > > > > > > > > > > > > > > > a a >
_ E
X
W v m y 0 W ~ ^ r- :t -:t (n M M M (n ~t
v, In Ln w In m o w m Ln m m In w wk.0 LO w Ln
c rn rn m rn M O m rn m LT m rn rn m m M m m
•-I c-i r-I i--1 r1 r-I N rl r1 r1 -1 c-r rl rl rl ri rl -1
d U U m U U z z U U m U U m m m m m U
w w w w w w w Q Q w w w w w w w w
LO Q LL 0 Q O LL LL LL LL LL Q
a)
C~ ~ <0 lD lD lp lD lD lD lp lD lp lD lD <D lO lD lp lO lD lD lO lD lD l0 LD lD lD
G
213
O O
~ O co cm a) r1 00 -1 m v N N ~ O 'Ct Ln a) cn m co m Cr m O ^ ` i
l9 ^ co Q1 co r-1 m m O w -ZT m -ZT N w m o O w m N w N m~ w r- O w
z K;T r, N d' N -zt M -1 M N N N a-i r-4 M -1 N r1 N N N e--I N r-I
W
J
0
Lu I M rl tX) rn m Ln LD r\ -;t m w N
Ln l71 O 00 lT O M Ln lD lT a-i N M M M Ln r\ r\ n r, r\ N N N
LO m u1 a-1 r1 N M M M M u1 W LD w m w w 00 w w w 00 w w w
Ln rl ,--1 N N N Ln m m ul m ul m m N N N N N N N N M M M M
Q M
W
LL
w
Q C
O
u
-0 -0 w - -0 -0 - _0 _0 -a _0 - - _0 - - -0 - - _0 - -0 _0 _0 - - - - C
a a) a) a) a) a1 a) a) a) a) a) a) a) a) a) a) 0) a) a) a) a a, a) a) a) a) a) c
L~ 4= w- w= w w 4= - 4= 4= 4- 4= Lam. 4= O
LA E
w a) w a) w a) a) a) w a) w a) a) w a) a) w a) a) w a) a) w a a) a) a) U
OO 0O OD 0O tO OO 00 0O M 0O 00 OO 0O 00 OO 0O W M 0O W 00 U W 0.0 W W 00
u
O K
Q i
W a) a)
LL m Ln
W
l7 a) 3
o 0
V) Ln H
n n M n LO W h o m d' W O n W-:I' W O N M ri N M O n o'CT W M M 0
„ m Ln 0 00 LT I, t- m m m v m Ln ri Ln o m m r- m [f m 0 V m N LO I, N ri Ol Ln 00 0
to Ln o0 Ln .4 O ri am N N a m t.6 N oo O ai r~Z N oo ~i o0 m M rn o0 m v o0 m O m ri ri O
O 00 W V' N N 1-4 -;J- N n r, O m M e--1 Il LO --I O1 O LO Il Ln r-I Lt) N LD R 00 w r, Ln V Ln O
UI r n 00 'T n M 00 r-I M LT Ln -4 r-4 00 M O r-I ri N n n O O'T O n O w Ln Ln N C O
oo 4 o0 4 oo r-i Le) N LT a) Ql Lri r-I r-i rn -i Ln t- oo o oo o oo Ol Ln oo m I~ e~ d' N re N
,N V1 N V} N V~ N V} r-I r-I r-I r-I V? N LD m ri to N N M M N r-I V} ri r-I m ri m Ln m Ln r-I N
O V) V} V) V> V} V} V} V? V} V} V? V} V? V} V} V} V} V} Vn Vt• V} Vs V} V) V} tn-L!
F-
o O O O O O O o O O O O O O O O O O O O O O O O O o O O O O o O O O
LL O O O O O O O O O O O O O O O 0 O O O O O O O O O O o O O O O O O 0
J o o 0 o 0 o 0 o O O O 0 O O O 0 o O O O O o O O 0 o O O O O O O O o
r-I ri ri a-4 r-I c-i r-I -1 r1 r-I ci ri ci r-I ri r-I ri r-I -I ri r-I ri ri ri ri JI ri ri ri ri r-I ri r-I .1
V1 ri ri r-I a--I r-I a-I r-I ri ri ri ri ri ri ri ri r-I ri -I ri r-I .--1 r-I ri r-I ri r-I -I ri ri ri ri ri 'A
V} V~ V} VF V~ V} i/} V? t/} VY V} V7• V} V? V} V) VT V} V) V} V} V} V) V} in V) V? V} V} V} V) V} V1 V}
m
m m LD w LD LO LO w w w w LD w LO w w Lo W w w w w w w w m w to LO LO W LD LD w LD
m
L
d
O
L1
~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
QI o o O C) O O O O o 00 o O O O o 0 0 o O O o O O O O 00 O O O O O O
I
J
U J J J J J J J J J J J J J J J J J J J J J J W J J J J J J J J J
R O O O O O co Ln m m m m m m 0 m 0 0 0 O O m m m V1 m 0 0 0 m m O O N co
LL LL LL LL LL LL LL LL LL LL
Li- LL LL. LL LL LL
R U
L
Q
w
X 0 0 0 0 0 0 0 0 0 0 r-I O O O r-I N O O ri N M O Ln M Ln O r-I O r-I O O N O O
I
F-
O
m H
_I
m ra O_ O_ O_ O_ D_ 0_ 0_ O_ O_ O_ 0._ a O_ 0_ O_ O_ Cl- O_ a O_ O_ O_ u 0_ U O_ O_ O_ O_ O_ O_ m O_ U
U U U U U U U U U U U U U U U U U U U U U U> U> U U U U U U U U>
> > > > > > > > > > > > > > > > > > > > > > O_ > O_ > > > > > > > > O_
LL1 o o o v ri r1 r-I ~ r-I v K* o o m o r-I ri r-I ri v LT
L~iI I. n n W Ln Ln l0 w L0 LO lD LD m Ln r- Ln O lD O lD lD <D lD Ln l0 lD O
rn rn rn rn O1 rn rn rn LT O1 Q1 O1 Q1 Q1 o rn o rn rn LT rn rn o
c C3, a, 0) a)
r-I r-I -i r-I ri ri ri ri r-I r-I r-I ri ri ri ri r-I r-I r-I r-I N r-I N ri ri ri ri ri N
°JI a a a Q Q w w Q z Q w Z Z Q z w w a w Z z z z z z z w Q Q Of
Q Q Q o o Q VI a Q Q o o a o a a a a o a
a,
N w L0 LD W LD W LD W LO w w w LO LD LO w LD LO w w Lo W W W LD LO LD (.0 lD LO w w LD w
E
~a
Ln N O I'D N n DD 00 00 m r- w Ln M a) N O -It n Ln Ln lT 'T Ln N O
0 N 0 N G) Cl) M ri n w n O 0) Ln O O W :t Ln n Ln o0 l0 LD O Ln r-I l0 r-I I, N O 00 z 00 N 00 N ^ r-I Ln ri ri r-I IH r-I Ln m r-I N N N M r-1 r-I ri ri M ri M I:T M ri N
w
J
W I
w N O Lb N ri Ln O u1 LO Ln O N O o 0 ri N ^ r-I lD
i O Ln Lb ^ Ln Ln
O Ln Ln M M co M NM O Ln Ln
Q 00 00 LO Ln LO LD Ln LO N Ln ri l0 O m O O M r~ Ln W 00 O 0 O 0 O C) M
00 00 00 00 00 m M M 00 W C3) Lb M O 00 -4 00
~ Q N N N N ~ r- N 1 N N N ri a-I N N N ^ N r-I N ~ ~ ~ N N N ~ ~ ~ -1 ~ ~ N ~ U) ~ ~ ~
Ln w
W LL
Ln
0
U
W
L0 (O f6 LO L0 f6 Lo f6 L6 f6 LO LO fO LL5 LO f6 LO Ll7 (D LSS fO LU f6 fl) fO Li5 fO fo f0
ui 0fo f6 00L0 t~fO ~L0
W 41 w w a w w v a a w w O w a w a w a a, a w w v a w a a w w a w w w a w
_ E t t L t L L t L L t L t L t t L L L L t t L L .c t t L .c t L ~ L L L
JI Z H H H H H H H H H H H H H H H F- H H H H H H H H H H H H H H H H F-
0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
0 c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c
z Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Ln Ln Ln Ln Ln Ln Ln Ln Ln LA Ln Ln Ln Ln Ln Ln Ln Ln Vl Ln Ln Ln Ln Ln Ln Ln Ln VL Ln VI Ln Vi Ln Ln
S
0
N
lO O-zt m M am O O rn O
' ~ ~ ~ 45-~ -:r O
O d-0 O O
U Dl M M d' M Ql O O
M --I r-4 rl r-4 fal `-1 I N l0 M lD LO O
M ih V? LT -Ln t/? Ql M N
4A M
V~
00
O O O O 00 O O
Ly O O O O V O O
J
O O O O N tom-} O
-1 -1
Lf!
~ ~ ~ 4j)- An tn
m
dl LO lD w lD 00
m
Z
41
O
ei
N o 0 0 0
O O O O m
p m
I
-13
J
Q
U J J J J J
O0 O O O0 O
LL LL
U
Q
ui
uJ N O O O O
I
H
O
m ~
_I
m ~ o_ n. a n. o_
U U U U U
> > > > >
X E
W ~
c
m y v O r
Ln to Ln n (7
C m m m m 0
-I ~ r-I .1 -4 c
+C)- w w w d C
-M ❑ ❑ ❑ Q W
N
C
L O
41
a) W LD LO LD 00 CO
~ C
O
O O H
2 'O
`
~ N O M - M
r- M O D, 00 m
Z V r-i N tD rl a
w y
J
f0
❑ E
fA
LU Lo F
O) O w r1i m N V
LU c
NJ LL O
~ U
O
U
W
O
v v aJ a s
g 0 ~ ~ 0 ~ p U
U
(D C7 -U C7 C~
= v w 4) aJ 4J cu )
E -C s t t s U c
M I ~I F-I ~I ~I om
J Z O O o O O u tL
Z Q
Y Y Y Y Y
Y Ln cn Ln in V) Of Ln c
x E
I-
cu v
v
O 3
Ln n V) H I1
r~ O O n Ln 00 LD N Ln m r1 n w m m r1 -I - DD -tT n O 00 N m m Ln o O O O O m
t+ r1 Ln lD r~ m M r~ rn -:T Lo O r-i N r-I N 00 N M LO Ln lD 00 -zt 't TT w N w r-I LD LD O O
o0 N .4 lD TT N v I-~ N O oo 4 M LD Ln Lr) M ri a) o) M I,: Ln oo m N N Ln r1 O M
0 m N m O a) Ln 00 m O 1~ n w LO 00 d' LD I, N r-I (Z 00 I\ m W Q) w 0) O I~ O M N Ln
UI 00 Ln ri 00 N Il -It r-I --t r, N I\ 't M r•I ri 1, Ln m 4 N ~ (D Ln r1 Ln M (D r1 N V) M O
fQ a) N 1, Ln Ol m o ~ w a) LD 00 r-i 00 m O N 00 06 r-I (O rr 00 N I: N r-i Lri N 00 e--I
t, m r4 N N N m N-* N r1 Ln V} m N r4 -4 .11 m O M~t 00 M-* M V)- V} ih VF r1 N ri
0 V) V? in V? V} V1 ih 1/1- VT VY V} V} Vl• V} in in inn r,4 V). -Ln V} N V} V} V} V} V}
f-
0 0 0 0 0 0 0 0 0 0 0 0 0 00 00 00 00 00 00 tV N 0 0 0 0 0 0 0 0 0 0 0 0
Ly O O O O O O O O O O O O O 'ZI: rt V ~ lz~ lz~ -1 W lD LD LD LD IC! lD LD lD LD LD LD
J o o o o o o o 0 o 0 0 o o M m m m m M~ -;z V v-zt v v v ;T -;I, ZT ;T nT
r1 r1 e-1 r1 ri ri r1 r1 r1 r1 r1 r1 -I N N N N N N M m ZT V -zJ- ~T :T -1 ~ ~ V
'Ok r1 r-I ri r1 ri t-I r1 -1 r1 ri r1 r1 r1 ri e-1 r1 r-I r1 r-I e--1 e-1 r1 r1 r-I ri r1 r1 r1 r1 e-1 r1 ri a-I
VT Vl- V? V? ~ V} V? V} V} V} V} V? V} V? VT V? V} V) V} V} V1 i./? i/? V1 V? V} ih V? V? V} V) V) V}
f0
MI L.D w w (.0 w 1.0 w LO w w w LD LD 00 00 L00 00 00 00 O O N N N N N N N N N N N N
r1 r1 ri r1 r1 ri . ri . r-I ri ri r-I
m
L
0)
O
r-I
O o 0 0 0 0 0 0 0 0 0 0 0 0
N\ o \ 0 0 0 0 0 0 0 0 0 o c
O O O O O O O O O O O O O m r-I N r-I Ln I, rn r, Ln (D N N Q) LV O N O Ln N Ln
p m TIZT m N~I:T m w m m m M M C1 ~1:31
I
J
U J J J J J J J J J J J J J J J J J J LL J J J J J J J J J J
P: m m m m 0 0 O-J~ o P m m m m m 0 O m m co m m m m
U
Q
a
W ri 0 0 0 r-I N r-I O O O r-I ri O O O O O O O O O O O m r-I O r-I r-I r-I e•-I N N N
cc
I
H
m O
2 a o a o o D_ o a o a D_ a n. d m a- (I_ D_ D_ D_ a CL M D_ a D_ D_ o D_ D_ D_ o D_
m U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U
m > > > > > > > > > > > > > > > > > > > > > > > > > > > U > U > U >
X E
LJ.I 1 a) M LT ^ 0) ^ ^ r- a) a) LT m 0) M a) Ln Ln Ln Ln m m m o Ln Ln Ln Ln Ln
C lD lD lD n LD ~ Dl lD 1- r` LT LD lD lD lD lD LD LD lD Ln LD Ln Ln Ln m Ln m r• m Ln Ln Ln m
O) Q) Q) Q) Q) Q) L7) Q) a rn m rn a) M M M M M M M M Q) M O) M 0) M M O)
r1 r1 r1 ci a-I r1 r1 r1 ci r1 r1 r1 r1 r1 r1 ci
•-I r-I a-I a-I ri a-I ci ci c-I a--I r1 e-I r1 ri a-I a--I r-i ci
lL J J J O_ J ~ ~ J O_ ~ ~ J J J J J J J J Z J Z Z Z Z Z Z D_ Z Z Z Z Z
a
d N N
lD <D W w lD 1.0 W l0 W W lD 1.0 W 00 00 00 00 00 lb O O N N N N N N N N N N
r1 ri 1-1 r1 rt r1 r1 r1 r1 c1 r1 -1 r1 a-I
LO
2
N Ln I- Ln lD r1 lD a-I O O N M M co O O Ln O M ri Ln M Ln 1.0 00 ^ O L,D
-;T co
LD O M 1.0 w w O 00 r1 r1 I, N m m r1 Ln M N 00 N M N 00 O
I -IT co
Z m N N N N m r1 N r1 Ln cn ri N m m m m r, N M Ln m m M N
W
J
p
I M Ln lD e-1 N M
W Ln M -;T Ln 00 m a O m 00 lD ~ Ln M (D Il C;) ri Il Ln O r-I O Ln M Ln Ln LD LD LD
N LD lD Q) m O w rn cn (.0 M O) M O n r\ O M M M M M m
~ Ln M M Ln N N N N M W 00 W LO L n w 00 00 w m Ln r14 N O) M
r, e-i r1 N N N N N N N N N N N N^ 11 r1 N M M M M M M M
LD LO LD LD lD L,D LD
Q
W
6L
W
Q
G
W -0 m m "O _0 m _0 m 'O _0 m _0 m -O "O m m -O m -0 "O m "O -O •0 'O m m 'O m m U •0
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
m L t t t L L L L L t L t L L L L L t L t L L t s ..C L .C t L L L t
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Lo Ln Ln Ln Ln Ln Ln Ln Ln Ln
2
H
0
O h m r1 m N O 0 C) Go
O N O
r-I ~ U) N N Q'} V)- N O
O O 'IT c-1 LO :T CT O
r-I LD M N Lfl r-I e-1 O
rl N ri r-I V)- M M O
t/p- t/1 t!} V'} M M 00
r-i ri N
t/} in t/►
O O
O w LD LO LD O O
LO M M M M 0 0
v w w w LO Ln O
Lf) Ln Ln Ln -tn Ln
~ ~ r-I -
Q)} t/? -tn tR il} i-4
N Ln Ln Ln Lf)
a--I a--I a--I r-I c-I
0 0 0 0 0
N ^ ) Q) Q)
M -1 L r) Ln ~
m LL L m
M r-I O O O O
W
M~
W u u u u
> > > > U
X
W
m m Ln m m
Ln Ln Ln Ln Ln
m rn a) rn a)
rH r-I -i r-I -1
z z z z z
tm
c
d
Ln Ln In lD c
N
e-I e-I a--1 e-i
CD
c
W
O O ~
m
n
r- 1O 00 N m a
d
is
E
M W 00 O O) y
-1 Ln Ln LO Ln W
Ln m m M M y
m m m m M O
W Ln w w w U
c
0
U
F `
Q C
O
L C c
O U
W -O -O -0 -O "O u C
F- O O O O O N
Ln O O O O O c d
L L L L L O c
U Im
0 0 7 7 7 7 L a) c
0 L° Ln L° L° Ln m
v
_ Ln C
cu a) ` _ E
O Y
L`n Ln VO- a
Y O Zt ri Nr~ O-zt t.0 Ict r- m N LD O O w
N Ln LD n LD m m .--I o0 m O m r, O O N
. . . O . O .
O 4 4 . O . O . . 6 6 oo . v . 4 . o0 . oo m M
1,6 u rI w-~* Ln Ln LT N O It m r- N O C! O O
I N O ci 00 LD N N 00 N LD r•I -ZT m O m
Ln 00' r-. r-i 00' 00 lD Lri -~e Lo m Lri r•i O ri
m m to m r-I c-1 -i i--I -I -I m N N 0) lG
to en
0 i/} (n- to t/). tn- to t/} if), ih tn- to t4
O O
O O O O O O O O O O O O O O
ry O O O O O O O O O O O O O O
J O O O O O O O O O O O O Ln O
ri r-I ri ci _4 ri .-i c-I to Ln
ci r-I r-I e-i ri r-I r -t .-1 r-I e-i c-I i--I I_z
to tn- i/} t/} in- t/} t/} in- t/? t/} tn- t/} 4.n
O
~I LD l0 w w LD W w LD LO LO LO W
f0
t
T
O
ri
0 0 0 0 0 0 0 0 0 0 0 0
01 O O O O O O O O O O O O
I
J
u J J J J J J
~ m ca Ln m O_ O_ O_ N N O_ O_ O_
u
Q
a
W ~-i O O O O N ci r-I 000
I
H
O
H
m ~
_I
f0 u u u u u d
M u u> u u>>> u u u
W > > d > > d D_ 0_ > > >
X
W m
.1.1 r-
c o
._1 N
Y z
f6 Q
O1
Y
C LO lD w w LD w w w w w w w
CE
fC
= O 0
~ O W O O W r4 M N N ri
r-4 GY w m r, w m N Ln o m
Z m m N ri -1 ri r i e'i ri m N
W
J
0
W O N -;;F m Ln N d' Ln w
ci m t o 00 rl rl N w O O O
C) N o0 00 0o m e-I -1 -1
Ln Ln Ln m w w w
W Q
CQ LL
C
F
W c
~ T T T T T T T T T T T T
Ln w w a h a w v w v w w w u
O Ln Ln Ln 0 0 H V) 0 Ln N Ln Ln a
u c c c c c c c c c c c c c
W C Ln N Ln N N In L/) Ln In N In N O
N N i~ L~ `I `I LI L~ `I i1 `1 `1 `I L_I u
z Z N N N w w w N N w w a) cu cu
Q fl - v
Ln 7 7 7 7 7 7 m 7 7 7 7 ro Q
N LII !6 - LO t0 L6 f6 L6 LO f0 (D 41
Ct F- F- - H F- H F- H H H H H oC ~
W
co a1 a
Q) y
Q LYn cu
H
V Il w N V N M M l0 m n .--4 O W M O W W M W M N Ln Ln O M O M W r-I M n W M N O O N
n•1 0~ lD M LO O O Q~ m W O Lfl V N r-I e-i O O V tD Q~ V 1' O O V M V V Lq M W Q~ O O Q1
-4 V n M M m w m V W V O V LO I, m N V m O V O LD O W LO m w O O LD
O W r-I W I, r-4 O Ln N LT W ri O N W M Il r` W M V m M N Ln Ln v m w N LD Ln r4 w m Lo O O LD
u LO N LO Ln c ri r-4 I, en O Ln N lD ri Ln m V -:f Lo Ln w r, m ri ri Lr m N V M N n am W I- O O n
N Ln W n Ln V I- V O I: N lD N O r-i M Ln v rV 0 CT W k tl1 V W N Ln Il W N V c-i LD Ln O Ln O
Y (14 N ri W M M V} m m d' N LD M LO V). c7 V} ri m N m v} N V} V} V M if? ri N ri N V? O I- 01
O V} V) Vl V} vlY N in VT V? V? L? V} tR V} UT to V? V} V} VT V) V} V} VT V} 1f} V1 V? VT N
f All.
O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O W W W O O
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O V V V
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O M m m ~ O
r1 ri r1 ri r1 ri ri r-I c-1 ri ri ri ri r-I r-I r-I r1 ri ri ri ri ri ri ri ri ri r-I ri r-1 c-I 1-4 N N N VT Lf1
V1 ri r-( ri ri 1-1 ri r•i ri ri c-1 rl ri 1-1 ri c-1 r-I e-1 ri ri r-I ri r1 ri ri ri ri ri ri ri ri r-I ri ri r1 ~
V} in V} V} V). V} V} V} V? V? V1 V} V} V? N V} Vl V), V} V} V? V} V} V} V} VT V? V} VT V} VT Vi V♦ to trt
m
I
L lD l0 lD l0 l0 lD LD l0 LD lO tD lD LD l0 LD lO to l0 lO W lD lD lD lD l0 LD lD lD LD lD LO W W W
m
L
41
O
H
O
N\ o o 0 0 0 0 0 0 0 0 0 o o 0 0 0 0 0 o a o 0 0 0 0 °r\j M N
GI 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C 0 0 0 0 0 C 0 0 0 0 0
I
J
a J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J
0 0 3 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 o 0 0 0 0
LL LL co co co co m m m m m m m m LL m m m LL m LL co co V1
co co co co co LL co m Co
u
o_
m a
W N O M O O r+M r-I .--I ri ri M V r-I O O ri O O N ri O O O N O O O O O LD cf 0 0 0
~I
2
X ~
W r
I
a LL u u u o o a o U o o a o d u a LL U u u u o n LL u LL a o o a n o a
u j j a a a > > > > a > > > > u > > 7 a a a > > > > > > > > u > >
Y
~N
C
L" n w w w w r- r- v a ko r v Linn v v v L L N i 1`nf,
c m 0) m m m m rn m m m m m 0) 0) 0) m m Cl) m Ln ul Ln
•-I N r-1 ri c-I ri rti r-I
ra a s 0 a Z Z 2 Z 0 d a 00 0 a a 0 w 0 0 0 j> j
-Y0O a s z a a a a a z a a z z a Z O Z z z
v
E lD lD W W W
w LD LO LO LD W W LD lD LD LO LD LD lD lD LD w LD LO w LO LO LD LO LD LD LD LD LD
O o
C) m
2
~ l0 Q1 ri lD W O lD lD W N N t\ n V N f\ ^ N m Ln Ql W W lfl ri ^ Q1 N !T W LO Q1
O N Ln m ri ri .--I I, N O O Q1 V Q1 O M Ol W .--I Ln N W N V O
Z N N ri I~ M M W M N N lD N Ln M N N N ri M ^ ri N M ^ M M ri N ri r1
W
J
I Lf1 I~ M O ri N V LO Ln LO W
m O N Q1 W 07 ri N m V lfl Ql O ri LD O O ri ri ri ri ri w LO O
W
m N M O W N W W ^ ^ O ri r-I N N N N N ll"1 l.n lD ri N ri N ri r-I ri N N r-I
M M V O W O N N ri M M N W W W W W W W W W W N V Ct V V V N N V
F- r-I N V Ln Ln M r1 ri ri N N N N N N N N N N N W lD LO LO LO w LO w LO LD
a
W
LL
W
C
Q O
u
W N O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O C
r C C C C C C C C C C C C C C C C C C C C C c c C C C C C C C C C C C
u
LA E Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y O
0 (U 41 N v N N d lU N N N N N N N N N N 4/ N N N N N UJ v v N v N N v N N
U Z L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L u
J F. H F H H H H F- H F- I- H F H F- H H F- H F- H H F- H F I- r I..- H H I- H F- Q `
0 m In
Z
a) (U
Y
W Y cu O
= Ln W H
F
00 'T LD Ln N I~ N M LD al LD al al 00 -1 al N m I- ri Ln LD I- e-1 m O O N N It Ln Ln oo N Ln N ri
O to I~ l!'1 M lD I~ L!'1 I~ al a--1 I'l Ql N M Ln Ln N d' N M Ln ri ri a--1 LD M r-1 Lo N Il 00 Ln O Ln -;t
N nj N L» lD ri oo rn ri I~ Lo o0 ri N N o0 O N I` N M v Ln N I~ O O -4 ri N oo M O I~ v k.6 O 0, ri
G Ln ri I'l ~ LID 00 N LD LD 00 1:T M LD ri Ln Ln N O M Ct 00 LD O M N I'- Ln O Il Ln Ln 01 Ln of Ln 00 Ln r-1
UI Ln n W N zj- Ol N N I, I, LD i, co -;:f :zr r-1 M Ln ri r-1 N M N Ln I~ Cl Ln ri r, of Ln of W 00 00 N K* M
Ln r-1' al -:T r-l I-zr W O Ln 00 N 00 Ln C) I'l 00 Lf) '-:t O N Ln O W 00 N -4 O N N Ln o of -zi m O O O
V. M M N-zT ri r-1 M N Ln M I- r1 N Ct N N N M N M V? I- Lfl M'IT NIZT ri W V} V'* N 11 V} Ln
V? V} V1 V} V? V} V4 V? V? V} V} VL- V} VT V} In V} V} V} V? V? V} V} V} V) V- V1 V1• VL V} V} in V} VT
H
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
LL O O O O O O O O O O O O O 00 O O O O O O O O O O O O O O O O O O O O O O O
O O O O O O O O O O O O O o c O O O O O O O O O O O O O O O O O O O O O O O
~ Vr-i ri r-l r-l r-l r1 ri ri ri r1 ri r-I ri ri ri r♦ ri e--I ri ri ri r-1 r-I ri r-l ri r-1 r-l r-1 r-1 ri r-i -1 ri ri ri ri ri
r-I ri ri r-l ri r-l ri ri ri ri r-I ri ci ri ri ri r-1 ri r-1 ri r-l ri r-l ri -1 -1 rl r-l ri ri ri ri ri ri ri 1-1 ri -1
V} V} Vn V? V} V} V). VL V} V)- Vl• V} V} V} V? V} VT in V} V} V} V} VL V} V? V} V} V} t/) V} V) V} V} V} V} V} V} V?
0
dl LD w LD LO W LD LD LD LD LD LD l0 LD LO LD W LD LD LD LD LD LD LD l0 LD LD LD LD LD 1,0 LD LD LD LO W W lD lD
m
t
G1
O
ri
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
01 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
I
'O
J
U J J J J J J J oC J J J J J J J J J J J J J J J CC J J J J J J J M J J J J
O O O O O O O1-- O O O O O O O O O O O O O O O H O O O O O O O H 0 0 o H 0
m m m M LL LL LL N LL LYE M M M M M M M M M LL M M LYE Ln CD LL Co Co LL CO co Ln CO CO LL Ln co
CC
U
a
LL
W ri O M r-l O r-1 O O O N N N Ol O O ri O r-1 r-1 O N O r--1 O o0 ri O ri M O O r-l O r1 O ri O O
I
m O
F-
I
m ~
m d m m a CL. a CL m m m d a. m m LL CL CL C m d a- m m m m m CL CL m m d CL m CL m m U m
_ u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u> u
x > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Cr >
W E
M 00 Ln Ln Ln Ln Ln Ln Ln Ln oo Ln 00 00 00 00 0 M L^ a 00 0 o Ln o 00 00 00 r, v ItT Ln o v
1yA Ln W Ln m m Ln m In W In 111 Ln Ln ID <0 LD Ln LD LD LD Ln Ln Ln Ln W LD Ln Ln W lD
C M of M 01 0) Q1 Q1 Ql Ql al al al al al 0) al m al al 0l O al M M C3) M a) M M M M Ol al
-I c-I e-1 ri a-1 ri ri ri ri r-1 `1 e-1 ri ri a-1 ri ri ri ri ri ri ri ri ri ri ri
uQQQZZZZZuavUUUaaaauaaa <uu a-0- >>a CL_
-M o g g?;-;- 012 o 0 0 0 a 2 2 a o a a 2 - o 0 0 a a a
0f ~ lD lfl lD l0 l0 <D <D lD lD lD lD lD lD lD lD lD lD l0 lD W lD lD lD lD lD lD lD l0 l0 l0 lD lp lD LD lD l0 lD
E
M Ln CF) N Ln lD O 00 O M M N O LD LO Ol ri Ol ri Ql LIl O r-I lD Ql O M t\
co M N Ln M 00 N
00 Ln r-i al O lzT N LD I- Ln 00 L- Ln M M N o0 m m I". ri I- al w O DD Ln O O O 0 Ln
Z O N-;t M ri -1 CY) M N-ZT M LO -1 N V N N r-1 N N (V I'l -;t r4 M N M r-1 Ln V M ri -;T
W
J
LO
WI W M Ln LD r- al O 00 --1 M V W 00 ri N M ~ Ln LD t\ al M I:zr M ri
O N 0 m m M M~~ Ln Ln N ^ 1'l 1~ 00 00 al of M Ol al 0 0 0 C 0 0 0 M C 0 al m M 0
L ri c-I ri r-I ri ri ri ri ri ri ri ri ri N N N N N N N N M M M 00 m 00 r-i
'ZI, ;T Kt KT 'T ~l r-1 ri r-I ri ri r1 ri e--I ri ri r-I .--I ri .--I r-I r-I ri r-I ri 1--i r-1 N N N N M
Q W
C LL
LU
W
H
O 0J v 0) lU 01 0J d 01 O) 0J 0J 01 01 N 01 v 0J 0) N O) N N 0f LL 0J 01 01 0J ltil O1 G1 01 N U1 01 Ql 01 w
U t10 00 U0 0A tl0 CD U0 t10 0D Uo 0A UO 00 UO 00 00 UD 0D UO q0 00 0A OD C0 OD U!1 hD 00 qD UD q0 t]0 q0 00 CD 00 0A U0
W m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
Q~ 01 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
J E C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C c
m O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
Z V1 V1 V1 V1 Vf N t/f Ln In 0 VI 0 VI A 0 Vf 0 V1 VI 0 t/1 V1 VI 0 V1 0 V1 0 'n Vf 0 VI Ln IA 0 N Vf 0
'6 "O '6 "23 'a "6 "6 "6 "a -6 "a -6 "O "O "6 -a `O "O -O "O -a _D "a '6 "Q -6 "O "O "6 "a -6 'O "6 "O "O "O "Q
Z O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
3: 3:
0
0
3
V M L.0 M M lD lD lD 1~ lD M O M ci m m I~ ci Ln N lD O O LD
rl 00 N O O fl, N -1 m-;t r4 w w m O O O rl ri LT r-1 O M cq LT O O C1
N w 4 O m r1 m N N m ri rl w m N L, 00 O O 4 V 00 LT 1, B O O
O N Ln LO rl r-i LO Ln 00 1l N N I, m w w Ln fl r1 Ql I, LT Q1 a-i Il 00 O O co
UI rl Ln rl N I, O Ln 01 M LT N 1l N d' N Ln M LO N N 00 Ln LO U) i- O O N
(0 --:F N rn r, Ln M a lD Ln m -:F M Lr N e-i N ri O N Ln rl a, 00 O to M
y~ Vi V) Vt- ri ri M zt :t ri V N V I M M Ln N r1 V M M-* N N Ln fl Li t 00
a V} V? V} V} in in V} V? V} V} t Ln V} V} V} V} V} V). V} th V} V? Ql 00 N O
H rl V} to LY1
V} N
0 0 0 0 0 0 0 0 DD W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O
LL O O O O O O O O t lz~ t0 LO lD LO LD LO LD LO LO LO LO LO LA LO O O
W O O O O O O O O M M qRZT -tt V RZT qzT - VR:T RZT Ln O
r1 r1 r-1 r1 r-I r1 ri r1 N N -;r -;:r 'Ct ~t Ct ~t L, Ct [f t/? Ln
L> r--1 N -1 r1 -1 ri 1-1 N rl r1 rl N r-1 r1 r-I r1 r-I r1 rl -4 r1 r1 rl rl
to VL V} V} V? V). V} V)- V} Vi- LT V} to L? V} to V? v> in V)- V} V} to V} e1
V}
20
.al LO w w w w w w w w 0o N N N N N N N N N N N N N N
m ri rl -4 r1 r1 r-I r1 -1 r1 r-I r-I c-I r-I r1
L
al
O
L-i
O o 0 0 0 0 0 0 0 0 0 0 0 0 0
N o 0 0 0 0 00 0 00 0 0
0 0 0 0 0 cc 0 00 m O LT i~ N M N r1 tT O Ch N N N N
N rl ri N N N N ci N -1 rl 11 r1 r1
J
U J J J J J J J J J J J ce of J J J
o o?:o O 0 o 0 0 03:0 3 3 a O P-~:?:~:,- o 0 0
m co m m m m m m w co CO Ln Vi w m m
u
CC
Q
a
w
~ N e-i r1 r1 m M o 0 o m o r1 0 0 0 0 0 0 0 0 0 0 o O
m O
m ~I
Lo a a U a a a d a d a a m m m m a a a a a U a_ U U
z U U> U U U U U U U >
X °1 a>>>>>> > D o 0 0 E E E E E a E a a
LJJ E
Y .--I rl 0 0 r1 r1 00 00 O O O O O O O O O O O O O O
Ln LD LO lO w w w w m Ln m m m m m m m m LT LT LT LT M Ql
C Ol LT LT O1 m m m Ql Q1 Dl Q1 Dl Ol Ol lT lT l71 m m LT m m LT
z rl a--1 rl rl a--I rl a--i rl rl rl rl rl rl a--I rl rl .--I c-I a--I rl rl rl
O Z Z Z Z Z Z a a a a a a a a a a a a a a
Q Q a Q Q Q Q U U w w w w w w w w w w w w w w
-a Q O O Ln Ln Ln Ln Ln Ln Ln Ln Ln En Ln Ln Ln Ln
v
E LO LO w w w LO LO LO 00 00 N N N N N N N N N N N N N
r4 rlJ ri N N rl e-d c-I c-I rl a--i rl rl rl
(a
v
O o
N n m r1 1 rl -;t LD L>o m Ln L11 LD m b N M ri Ln O n
(,'J a, M M M
Ln R' O Ln N N U) L O O N -4 w~ 0) M N r1 Ln O
Z E N 00 -I ri m-;t Kt r1 M r1 m rf N N m r1 ^ N N N M r1 N
W
J
w V Ln W r- rI M r- W O N w m Ln LD L- m m m r-- o0 CY) ~ O O M M N N O O m m 00 Ln N M O O ri r1 ri N M M m m
W LO W LO W Ln Ln V V ~ oo Lb
LO w m LT O O r1 -4 co lb m -;zt Kzr -;t N N-* r4 N m m 00 m m
Q Q Ln Vi Ln Ln w w LD LO N N rl rl N N N N N N N N N
C W
L LL
N
W ~
H O
O a) a) a) a) (U a, a) LL a) a) a a) a) a, a) a) Lu (U (U a) v a) a) ar
U W OD to to tO tD bo tO tD tO tD tD tD tD bD 0D t0 tO 0O tD t0 tO 00 tO u
W 2 2 2 La 2 La 2 2 fa 2 2 2 2 La 2 (a Lt (6 [6 fo l9 La fa a)
Q~ Q) > > > > > > > > > > > > > > > > > > > > > > > > C
J E c c C C C C C C C C C C C C C C C C C C C C C C
La O O O O O O O O O O O O O O O O O O O O O O O O
Z V N 0 0 V V N N N V V V V V1 N V V V 0 N VI to L/1 V L a
'a "a "a -a 'O -a "o 'a 'O 'a 'O "O 'a -a -a 'O 'a _0 '6 "6 "O "6 "O -6 u
z O O O O O O O O O O O O O O O O O O O O O O O O a L
p o 0 0 0 0 0 0 0 o O o 0 0 0 o O O o 0 0 o O O o C
c 3 3 3 3 3 3 c
O a 3
O a)
a O
3 v) F-
O LD O m O Ln n N r N m M m Ln F, V Ln a) w o Ln Ln N Ln m N N n m D1 a* M w n N Ln N O m 7 m n
y. Ln N N n Ln w m Ln N I n n Ln m m V O w 1n m O Ln o0 V M DL 00 n w m n Lm m w Lll n m q w m O N D1
O N N N V Dl m N LD n oc Ln M V m Ln N o w m Ln V n 00 Ol n m (T D1 V N m N In N w m V O D1 n o w
U C of T LD m o d w m L--I N w m V l0 n r7 Lr D1 6 Lo W V m e-I w -J o La m Lo m m rn n n N M N M d' n
a o n w N N Ln m o O V N n 0 w n d' m O m m to Lm n N m m Ln N m N n m N m 0 v) N m m
V} N VA N ih N N V} M' V N N N V? VA N M N N V1 to vT V} m N v} V} to M m N V} N N N N m N N M N
O vT v~ V1 to j). Vf j). in v} V) vT v) V1 in N V? v} VT v? v1 to VL V1 in v? Vn
co
U
K
o LD O oo a o lff D D M M In n V D m D lD n O Ln n N n m m m m O n V V O V M M
* N N n Ln m N m 0 w m w D1 o v m Ln n Ln m V D w O O Dl n m M m N m n O V m n 0 LD m o rn V O M n 0 u n Dl W M O V V LD n LD Cr LD M N In Lr o M w tr M N m a m
a v n LD N N w n 7 Ln M m M n Ln W m t7 oo Ln N m 0 m M O to m 0
K to N vT VT N v! to N M vT V? V} to V} M V1 to to M M M N m N
O V} V? Vn Vf tn. V1 vT to u? VL to In to V} Vn to
N
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 u O O O O O O O O O O O O O o O O O O O O O O O O O O O O O O O O O O O
0 00 0 0 0 0 0 O O O Ln O O o 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 Ln Ln O O Ln o 0
0o 0 o 0 0 0 0 o v O o o Ln a 0 o O v o 0 0 o v O a 0 0 0 0 0 0 0 0 0 o v O o v v Ln o 0
Lz m Ln Ln Ln m m Ln m a Ln Ln Ln m v Ln Ln Ln a Ln Ln Ln Ln v m v Ln Ln Ln Ln m m Ln Ln Ln Ln v r a a v m Ln m
w VT V} V)v.v> lA V)in u*tounV}v*to V?to VT V} VT VT V)toVf vv V}unto Vnu} V}utwv). lf.vw VTun V}toutyrurun
O
m
u
a
- - - - - - - - - - - - -
K
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 o o
0 0 0 0 0 0 0° o'o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
u o 0 0 0 o 0 0 0 0 0 0 o ri o 0 0 0 0 0 0 o ri o 0 0 o 0 o 0 0 o o o o o o Ln Ln o Ln Ln o o
a o 0 0 o v v v v o o v n v o 0 0 o v o v O v v v a a o v o O v v v o 0 0 o v Lm Ln O c
I m In Ln In V C -4 m Ln V m O Ln m Ln Ln Zr M R [P C V V Ln a Ln Ln a~T lA In V C M M Ln 't
a to v* VT v) V} v) in vF to v} of VL v/ VT yr t4 of to in v> V} v) V} vv VT in Vl VT to to un to v4 V) to VT V) VT in V) VT vT vT
v
oc
O
m
O
N I
O
I
a
r m m m m m m co o0 W co m m IT m m oo m W m 10 oo m m m w m m a0 m m m m m CO m m o O LD ID o m o0
O c v c v v a o v m c v v N v v v v m v v v v m v m if v~ v v v a v v v m m m m rn m V '7
m
u
w
O II
v a w a v a v m a v a v N v a v a v v a v °m m v v v v v v v a m v v v a cm m y N R co
LY
O
m
0
I
a
w m m m m w w w m m w st m m m m m m m w u w w m w m m m m w m m m m a O W V m w
m m a c v v m m m m m U V m N v v v a v m v m m m m m m m v m m v a m m m v v m m m N v m
o
m
o
M N
°m o o a o a° o o o 0 o e a o 3° o 0 0 o a° o 0 0 0 0 0 0 0 0 0 0 0
M I o c) o O o c o 0 o o c o ,y o c O O° o o 0 0 o O° o O° o o O°°° o O° O o o 0 o c
Y.1 OI o° O o O o o c o c) o O Lo ° o O° o o o c) o c O o c) o o o° o o c) o O o O° o o° o o
m
X °
N O O O O O O O O O O O O n o O O O O O o o O O O O O O O O O o c O o o o o o o
OI O O O O O O O O O O O O M O O O O O O O O O O O O O O O O O O O O O O O O O O ~ O O O
I
a
- - - - - - - - - - - - - - - - - - -
O
N
3° a° 3° a° o o \ 4 o o 0 3~ d`; 3° o o\° o \ 0 0 0 o a° 3° o\° o \ o \ o\° 0 0. 0 o 3° o
p Lmp LLD Z o r, W rl LD o ~ a o Lmii LLD m (3) 0 o r o c) F-4 oo Lb n v w ~ r, r- m o n Lon u~i u°1i L`nn LLD oNO N mrv n v° w LWn
v
ro m m m m m m m m m m m m N m m m m m m m m m m m m m m m m m m m m n m m m m m m m m
n n n n n n n n n n n m m rl n n n n n n n n n n n n n n n n n n n n n n n n m m ~ n
C am m m m m Ol LT m a) m Ol rn D1 am LT rn rn LT m m m m m Dl rn LT m m am in m LT D1 D~ am m a) LT LT m LT m
vlr r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r a r r
a a s a s a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a w a a
c
N n n n N a N N N r4 N N. n n n n N N N N N N N~ N N N N n n V C V V N In Ln N N O n V
r0 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N M N N
"O
- - - - - - - - - - - - - - - - - - - - - -
rf I
= m m m m o N O m N V m n m w m V m m c) O M a m m N W N r n N m w m V m N m N O m Ln
O Ln N in o w N O m V m O V m m O LO N n N Ln m m a n N v n v Ln m m N O N w n N tD n
(7 N In N N E Ln N N n 00 N N M N N V n N N L N N N n V N N N m tD N N N N M m W V M lD [Y
Z
W
J
W M o m O N N n O N n m V n m m m m N M am O m Ln w n o Ln m w Ln O Dl m
Ln m m o n Ln N M In V m m N m m M W N O o o N N N N M M C V to w m N N N~ V N M N Ln M N
lD Dl 01 O n c N N to Ln N N lD w W lD lp N N N N N N N N N N N N m m n m 00 m m m OL O N O o m
V N t o Ol
N lfl to
H N N n n n n m N e-I N N N N N N M m m m m M M m m m m m m m M m m M m m V
a
W
LL
~ W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
W Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z
W J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J
= Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
w w w w w w w w w w w w w w w w W w w w w w w w w w W w w w w w w w w w w LL w w w w w
H l~ .1 LL w W W W W W W w w W W w W W W W K w W w W W W w w w W w W W W w W w W w W W W w W LL w
cc w w K K w w K w w w K C d' K K K K K K K CC L0' K K w m w w K K m K K K K K K
0 !ij u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
u O W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
N W W W W W W W W W w W w W w W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
W d co co co co co m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
H
a N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
a w a a a Q. a a a a a a a a o_ a a a a a a d D- a d a a a a n. a a a a a a a a a a a a a a a
Y cc Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W w
cc w cc. = w K OC cc w cc K K K m K K K K K C K K K K K m K K C K K K K K K K C K K K K K w
u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
u u u u u u u u u
W lY w W w W W W W W w W W w W W w W W LL W w W w W w W W W W W W W W W W W w w W w W w W w
D. co co m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
co
O m V1 m N m N n m lD 0 0 V O O m O o 0 0 0 0 n 0 0 O O', to O In n O O N M r
m m m N V m 0 m .--i n V O m w c O N O O O O O O m O O n V v1 ID O m n 0 0 m n N
O V an W to lp W N m O tD r-I O v7 m O V O O O O O M n C 0 0 W w to V V O N w m R
U V V m N m m m N w N m Ln m ri m o oo N N m N 01 N M N V to V O m m m o m In n a
d m O m M W N M m Oo N w N ri N n N n 4f1 m W n lR Lr) M W V ri n m w to
a. VL N L1 N m V? N N V} VY N VS M V! V? VF N VL V! VT V) V) V? LT V1 Vf V1 V! VT VT VF VT N N Vf M
O to to of V4 v u} ai
co VF
u
w
of
o M to m <n N N n m t0 O O L" V O O m 0 0 0 0 0 0 N O O .--i O ul m O m n a o w m m
W m N 0 0 0 m r-1 n V O m lD O w N o 0 0 0 0 0 lD V tD n V m l0 O M n o 0 vl N M
p VLr cl Vl O llN m O lD a--I O ul m O V O c O O oLr~ tD V M O m V .--i lD V O N r-1 n 01
U V V M N N w m N 0 N m Vl m m rl o m N N m N m N Vl m V m m c) m m m w m V m O
D. m O m M V N m m w .ti w N N N N r-I N r-1 n r-1 n In m lfl W to r-1 <n m w V r'1 n m Ln m
C to N VT M M V} v1 N vt u} N u* m In to u* to v> v> v~ v1 V} Vl to to to v>• v-• vt v} in un to t4 VT O
O uF, to to ih to Ut 01
o N
N
CIO O O O O O O O O o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
u 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O O m Ln o O O O O O O O O O O O O O O O O O O O O O o O O O O o o O O O O
~I o O O O O O o~ u1 O O O O O O o 0 0 0 o o o o 0 0 0 V V V V V V O O O O o
cL v a a Ln Ln Ln w w o m Ln Ln Ln m in in - - - - V a It It a a Ln 1) Ln ~ u
w to v* u* v} v* in to v). u* N an to vn to v1 Vn un ut to VT v> v>_ VT to V? V} V} i/? to v* v) In to VT un In lfT
0
O
co
u
w
O O O O O O o O O O O O O O O O O O O O o O O O O O O O O O O O O O O O O
O O O o o q O O O O o q O O O O O O O O O O O O O C) O O O O O O o o O O O
u 0 o Ln m c O O O O O O O O O O O O O 61616 o 0 0 0 0 0 0 m 0 0 0 0 0 0 0°
o o o o V V o m v o 0 o o 0 o o o o 0 o 0 o o c c v V V o v v v O o o V v
I m v q V v v1 LD w o Ln Ln m- m m m m- i m m m V V V v v v V a V v1 o m v V
Q in un v> vi v~N u}v}v> N to u}to t-1 VL VF of Vf U! vt N yr v1 u*to vV v} to in v> vT u}toN VF V1 v*
w N
w
O
m
o
r4
D
a
or co m o o m m m w ~o ~D m m m m m m m m m m m m m m m m m W m m m 10
m o0 0o m m
O V v m m v V v LD LD M V V v v V V V V v V c V V v v V m m m m m m c a v V V
co
u
w
z
O
I
y co co o o m w m V N n m m m m m m co co m m m m m D o D m m D D D D oo m m m m
z v v m m V m c w n m V v V V v V V V V V V V V m m m qt V m m m m V V V v V
O
co
0
n
w m m o o w w m m m w m m m m m m m m m m m m m w w w 0 0 0 m m w m m m w w
m V e m m m m V W w m v a c v v v v c v v v v v m m m m m m m m m v v a m m
0
M
r-4
m o
H m o a o o a° a o 0 0 0 0 0 0 0 0 o o o o o a o 0 0 o a o 0 0
m 0 0 0 0 0 0 0 0 00 o 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 o o o o o 0 0 0 o o 0 0 o 0 o 0 0
r-t rti
a
X °
W
o 'R o~ooo~o ~oo0~0'0.R 000000~ao'o
rIj O o o 0 0 0 0 N O 0 0 0 0 0 0 o 0 o o N O N 0 0 0 0 0 0 0 0 0 0 m 0 0 0
OI O O O O o o 0 0 0 0 O O O o o 0 0 0 o m o w 0 0 0 0 0 0 0 o m o c) n O o o
I
a
o
° a° a° a° o a° a° o\° o o \ o\° o o o \ 0 0 0 o o a° a° c\°\° o\° o~° a° a° o a° o
NI O m r-i m 0 r-I o to N V to w n n tD O O rt 0 .--i e--I O o 0 o m n O m n M ri m N Ln w
n Vl N N ID In M M n M n to W l0 lfl ID W V) lp to l0 Ln 0 V1 In m n to V M N M o V tD n n
I
a
Y m n M M m m lD <0 M M M m m m m m m M M M m m m m M M M m N M m m
n a o n n n n m m m n n n n n rn n n n n n rn n n n n n n n rn o n n n
m ° m m m m m m m m m m m m m m m m m m m m m m m m m m m o m m m
- N~ N N N N N~ r-1 r-1 .--I rl N ri N N r-1 '-I N N N .--1 N N N N N N N .-1 N N N N
YI } J z } } } } } } } } } } } } } } } } } } } } } } > } } }
a a a a a a u u w a a a a a a a a a a a a a a a a a a a a o a a a
m g a o o z
ml N N .--1 N N N V VII M N m N N Om N N en N CD N M N N N N N N N N N N N m N N N
a
~I o
= m m n n n vl N m r V V w w V V m D ri W N n
o -IT
W V m W M O lmD N M N V m N N M .--I N m m M m co M o) r to
U~ N N M n W
z
W
W I m O m V m N M oo ID V N w n 00 m 0 N M V lD n 00 m 0 .ti 1tl lD n 00 m 0 to n m W m J
N M to o V V N m 0 0 0 0 0 0 N .--1 N N N .-t r-1 r-I N N N N N N N m O o o M m Q
m m m m w N N m M V V V V V V V V V V V V V V V V V V V V V V V V1 tf1 V1 m m H
m m m m m r-i r-I r m m m m m m m m M m m m m m m m m m m m m m m m m m m m m Q«
a In lit Ln to m w m w w w w m m w w w m m w w w w w w m m lD to w w w w lD W w w w o
W ~
LL
W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
ri z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z
W J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J
= Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
w w w w w w w w w w w W w w w w w w w w w w W w w w w W w w w w w w w w w
Ln u w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w
a' K K K K C C K K C K K K K K K D! K K K w K K K K K C K K K K C C K K
O u u u u u u u u u u u u u u U u u u u u u u u U u u u u u u u u u u u u U
U O w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w
~ w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w
W a m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m
Ln
Q N N e--1 N N N r--1 N N N a-i N N N r--1 e-1 N N e-i N N N .--I N N e-I r/ a--1 N N N rt a-1 N r-I •-i ri
M w a a a a a a a a a a a a a a a M. m a a a a a a a a a a a a a a a a a a a a
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
W I W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
W H W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
m U m m m m u m m m m m m K K K K m m m u m m m m m m m m m K K K m m m m m
U ~ U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U
W o W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
W K W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
m m m
to a m m m m m m m m m m m m m [a m m m m m m m m m m m m m m m m m m m co
V O m N m m w m m n -4 11 l0 N -4 ~ N w to V m l0 to V m to O o r` O m m O 00
D1 M 00 ri to to to m O w N N n m l0 D1 w r-1 O N W M r-I n m O n O N O m Ct O M
- In o0 In V t\ n N r" o0 W O O to ` lD In r-1 M n O t" O N l0 M lc 00 Q1 t0 to M t0 V1 N
r; Ln ai O O r-1 N m r, l0 O r` m T O Di o m r` m to N to O m N V N O to r4 O r4
O V Ol to LD l0 O N N N O M M 00 N N M V M N Cr) O1 O 00 N e-I N N V} N rr [t N P.
u e-I V? V? V} V) r-I r~ e-I N .--I VT VT VF N r-I N N r-I N N r-1 N VT r-I to VT LT V? to VT N V} O
~ N V} V} VT V} V} V) V} V} V} to t4 V} V} V} V} t4
0 tM1
co
u
v
K
y V O rn N In rn m to m r` r-4 .-I W N r-I N to N to V M W Vl V 00 V O O V O M N O to
m M m rt to to to M O w N N n to tD V V O N m m 1-1 r` to r n o V O oo Ol o W
p vl 00 vl V n n N n W 00 O O to V lD ri w to n O t\ O N lD M W 00 Cn lD O M n O Cl1
u r. to rn O O .--I N m r` m c r` m V O N N LD n m to N to o oo rn ri v to oo ri v oo N
c- V Ol to tD W O IV N r-I o fn M CO fV N N N c-I a--I m m o co N .--1 c-I N Vt ri N m co N m
QC H V} V} V} V} ri -1 ri ri 1-1 V1 V? VT r-I ri r-I N N 11 N N N VF N VT V} V} V} V} to in V? 0n
O Vl t4 V} V? V} V} Vf V} V} V} VT V} VT to v} to N
m
O to
r4
O O O O O O O O O o o o o O O o o O O O O o o O O O O O O O O O O
O O O O O O O O O O O O O O O O O O 010 O O O O O O O O O O O O O
u to to to to to to to to to to m to to to to O O O to to in to to to to to to to to In to to to
o o o o o o o o o v v v v v v m oo m 0 0 0 0 0 0 0 0 o a o 0 0 0 0
I-zT V -zt V V q [t q V N N N N N N N N N V V V V V V V V V N V V V V V
C VT V} VT to VT V} Vr VT V) V1 VT VT in to v,} VT t4 t4 V? VT V} VT V} V? V} V} V} V? VT V} VT V} VT
C
0
m
o
of
O O O O O O O O O o o o O O O O O O O O O O O O O O O o o o o O o
u o O O O O O O o q O O O O O O O O O o O o o O O O O O O O O O O O
'I to to to to to to to to to to to to to to to to to to to to to to to to to to to to o O O o o
n 0 o o o o o o o o v v v a v v v v v o o o o 0 p o In o a oo m oo m m
a V a V V V V V V N N N N N N N N N ~-zt [t CV V V M V N N N N N N
v K VT to V! to to to V7. yr 1^ v} to v). to to Vr to to V1 to to Vs to V4 Vt Vt to V* V} V*k i^ VT to Qt
o
M
O
N
°
ai
= O O O O O O O O O N N N N N N m m m O O O O O O O O O N O O O O O
0 m m m m m m m m m r-1 r l r-1 H r -I H r .-1 ri m m m m m m m m m r -I m m m m m
m
u
N
I
y 0 o 0 o o 0 0 0 0 N N N n1 N N w m m R O o q o o 1-1 O O N 0 0 0 0 0
~ M M M M M M M M M 1 -4 ri -4 ri N m m N m m N M M H M m m m m
0
m
m I °I
d
Ol co co m w w w w w m N N N N N N N N N W W 00 m m W W V O N m m W W W
O H N ri 1-1 N r-I N ri ri N m ri ri ri a--1 .--I r-1
ri N N ri N ri N N N N N N N ri N ri
O
N
2
W m o o o 0 0~ o 0 0 0 0 0° o o 'o 0 0 0 0 0 0 o a o 0 o a°
lo 0 0 0 0 0 0 0 0^ m h M lD w o o 11 M o o O O M O O ~.y 0 0 0 0 0
° o o o o o o p o o m m r, 'D o o m n o o m o o m o o m o o o o o
N N ri a--I c-I c-1 c-I ri ri a--I ri 1-1 r-I 1-1 H .--1 N rl H
a
0
m
c o a o 0 0 g e\\ o o o a° o\° c o~° o o\° c o
NI Ln V M ri O V In In Ol V lD O N D1 N V lD lD C lD co tD to oo m to 00 N Ol N lD
° t` n lD n 1` 1` r` r` to N N N M M N M M N V to to ~t to Ln V LD n N to LD to R to
I
p
ri
o 0 0 o a\\\ o 0 0 0 0 0 0\\\\ o 0 0 0 0 0 o a°
NI 00 w w n n m m w M o o r N O '-I M M N m N N r` W m v m M M
° H r♦ N ri N N c-I .--I -4 Ol Ol 19 N 11 Y) rt N N N .--I ri -1 ri 11 ri r-I rl ~ r-I ri -4 r-I H
m rn rn m m m Ol Ol Dl to <D LD W lO LD l0 LD w tD to tD vl to to to M Ol M lD to to to lD w
to O1 Ol a) O1 O1 Ol O1 Qt O o o o o o o o 0 0 o p o o o o m O1 m p o o o p p
C O M O O O O O O o o o o o 0 p o o o o to H m p o o o p p
N N N N N N N N N N N N N N N N r4 1-1 N N N N N N
aj } Y>>>}}} C7 Z Z Z Z Z Z Z Z Z m 0 0 0 0 Y}} Z l7 V. (7 m m
cQ cQ cQ cQ cQ cQ Qc cQ w 7 cc QQc cQc = w w
'Q L L L L L L L L Q Q LL Q Q Q Q L C L Q Q Q LL LL
C_
I m m Co Co Co 00 CO m m N fV N N N N N N N o0 m m m m 00 w W m N w m m m 00
f0 ri ri N N N N N ri ri ri ri r♦ N ri e-t N ri ri e-1 e-1 ri r-1 N N N N N ri e-I .--I e-I N ri
a
~I
2 t\ N IT O N N o ri LD M N tD m N m ri tD r-I 1\ M O1 O W to lD 11 O O N M o w
H tD m V RT to to O N m M N to tD O 41 m O n m r` w Ol N D1 O ri O O
0 m r,4 N r-1 c-1 N m M N m. r-I ri M to V V In N V V ~ N N~~~ N~ .--I .--1 M ri co
c~
I w
W.
W °
12/1 wl .--I r-1 N M C to LD n m m N O lD N D1 o In to W to m V to tD n J c
l0 W W m o N M to m N N N N N N N N N 1` m m W W M O N N 'Zr M M M a 01 Q
S m w m m m m m Ql ~T m m m am to m m w w w w w w n N rti m m m m m Q1 O
lD w w w w w w w w w m m m w m m N N m m m m M M
O Q m m m M M M M m .--I N to to to m to to to to to to to to to to to to W W W W W W m m H G
N LL ~
W
Q N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
S > 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2= 2 2 2 2 2 2 2 2 2 2 2
M w 1L a d d o_ D_ d a d a D_ d o_ o- of ri d D_ a s D_ a c ri d o. o_ o_ C d d d d
Y M Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
W W W W w w w w W W W w w w w W W W w w w w w w w w w w w w W W W W
W W W W W W w w W W W w w w w W W W w w w w W W LL w w w w w W W W W cc w cc w cc u u u u u u u u u u u u v u u u u u u u u u u u u u u u u u u u u u
W O w w w W W w w w W W . . w w w W W W W w w W W W w LL w w w W W W W
W w w W W W W W W W W W w W W W W W W W W W W W W W W W W W W W W W W
co In- m m m m m m m m m m m m m m m lm m m m m m m m m m m m m m m m m m
O tO 00 O V) O Q Q 00 m m m 1, V) 1-1 V1 M 1l a) 1D Q Q t0 M Ol N 00 ri Q 0) ri Q n M M N O LO W N O
M Vl a) O ri r` m O m 0o rl oo Q m O u1 M N W ci ri M N M Q LO r+ O 00 M 1D M O m rl O 1D N Q V) 1/1 Vf
0 M O n Vl V1 N m 0 1D Q w m Q 00 I~ V) cr Q V) D) O) 1D V1 Vl Q O N m N 0o c c 0 ri Q D) P ri D) 1D ^ M
O 1O O) M M N 00 n 1O G) 1D I- u, ri N O) O V) Q tV O rl O rV Q M ri ri O N 0 Q O t+) 00 Q 1D 1D V1 M N ri Q
d Q M M m lO a--I r-I V} 00 I~ N 1O ri N 1D N V) N N Q .-i c-I (n M 00 M Q Q N r-1 Q N ri ri rl Q) vl• .-1 N 0 ri O
cc V! -4 V). ri i/F V1 rl in. V} VT ri V} to N vT VT V} Vl V} V? VT to VF V? t4 c-I to ri V} V'} rl u} v? i/} VT u4 ri M IA
O N IV} V} VT N V? Vf VF VY VT
co
u
00 Ln lO O) Q O r, O 00 00 O 1 I~ Q W M tD O 00 m O O ~ l f, m r, r, ~--I ~q O O) O ~--1 Cl) N M N O 00 O I, V)
1D 1D 00 O Q Vr Q in 00 O to V) r` 00 r1 1D I~ VT M N V} Uf Q I, V) N m O 00 ri O V} Q V) LO O w i*cy" Q N 00
p V) M Ol lD 1D V) O h V) Q O m O) 00 O0 1D l~ M 00 ri 1D ri N V) Q D) O h D) I~ N O) M
Q o O) Q) W n Q ri Q Q n Q) O 1D 00 l0 N M O) 00 N N -I N V1 I, rn w lD 1D O N
n m m lD D) Q 00 00 I~ 00 O n V) Ln i N 00 M oO N M M ri oo M O -1 LD Q) V1 0) V) ri
K V} ri V} VT V/ V} t4 VT ri V} V} N v} VT v} V? V) VF VT vT VT V? VF rl t4 VT N Q N
O 1^ to i^ to VT N
m +n
oN
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0 0 0 0 0 co 0 0 0 0 0 co 0 0 co 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
V) O V) V) V) 1D V) O O O O 1D O lP) 1D B O O Vl O V) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
U N O N rV N LD N 0 0 0 0 W O N lO 1D O V) N 0 N 0 0 0 0 0 0 0 V) V) V) V1 O O O m V) 0 0 0 0
lO oo lD lO 1D o0 1D o0 0o w o0 00 00 1D o0 00 00 Q a m lD o0 00 00 00 OO 00 00 Q Q Q Q o0 00 0o Q Q 00 00 00 00
N N N N N M N N N N N M N N M M N N N N N N N N N N N N N N N N N N N N N N N N N
C N V} V} to to V} i/T VL V} vv V} v} to V} to t4 to to t4 vT N in to V} V) VT vT v} in V} to in VT to VT in to to V} to V)
v
K J
To
0
w F
K
lD O 1D ' lD 10 ID 0 0 0 0 0 0 0 to tD 0 0 0 0 0 0 0 00 -W XT O O O O M M O O
00 V1 00 00 W W V) V) O V) 00 O O Vl 00 W V) V) V) V) V) V) O ri a-I V) V) V) o O m M V1 O
u V) N V) V) V) V) N N O N m O O N u) V) N N N N N N V) O O N N N V) V) CO 00 N V)
7 O 1D m m m m LO 1D O w m Q Q 1D O) m w tD 1D w LO 1D Q 00 00 1D 10 1O Q Q 1D 1D 1D O
e-1 N r-1 e-1 a--I ri N N M N N Q Q N N 1-1 N N N N N N. rl .--I N N N N N N N N Q
d of to t4 VT to v} V? VT Vl VT V} VT uT v} V} to tn to Vn VL v} VT V} VT V} VT V} V} V} in to V) vT V}
N
K
O
M
O i
N
- - - - - - - - - - - - - - - -
OI
a
0ff m 00 m V) V1 ID V) 00 CO 00 00 ID 00 m lD 1D 00 N V) 00 V1 00 00 w m w 00 00 N N N N 00 00 W N N a0 00 00 00
ri N ri N e-I M ri e-I N e-I rl M ei N M m N -i rl N N a--1 N r-I ri e-I ri ri ri r-I ri ri 1-I rl e-I ri 11 e-I ri ri ri
co
u
a1
z
CL V) 00 V) V) V) V) 00 00 Q 00 O lD LD V) V) 00 00 Vi V) Ln V) N N N 1n W 00 N N <0 1D V1 O
W
~ N ri N ri N e-I ri N V) e-1 ri M M N H N ri e-I ri ei N ri ri ri N N ri N ri N 11 a--I N M
M~ 00
W p
CL
X O O V) O O O O V) V) 00 V) O tD to V) 00 V) V1 V V) V) V) N 00 00 -4 V) N V) V) N N W lD V) O
~ e-i ri ri ' ri e-1 -4 ri 1-4 Q N e-I m M .--1 -4 ri ri N ri H -4 1-4 e-1 1-4 ri 1-1 ei e-1 m
0
W o
N
ml a° o\ o o o\ o o 0 0 0\ o o o o\\° a° o o\ o o 0 3° o o
1, W 00 Q 00 1, n LD D) 00 O f, O Q 1D 1D 00 V1 V7 D1 O Q V) V) V1 M ID O 00 00 l0 N ci V) N I~ N O n N O
pl LO V) lD W lO N lD Q V1 V) N 1~ <D Q N M Q I~ f\ t` V) W Q Q Q 1D V) M ri w m V) 1n 1D Q Q Q Q m O
ri
O
M
O o o o\°\° \ o\°\° \ o\°\° \ o\°\° o\° o o\° \ o\°\° \ o\°\° o\° \ off ~ LD tD r\ o\l 0 cn 'T o o 0 o\° ar° o00 o00 ~ o O
o
I~
l~ N Q I~ O C3) 1D 1D .--I O M Q O Q ~ 00 00 r-1
NI r i Q \ N D) N V) O 10 V) Q lD m lD Ln Q M 0
p V) Q V) Q V) N V) M Q Q H 0 Q M N M M Q V) V) ^ Q Q m M m Ln Q N i .--I Q Q Q N N m m N
-
O ~
0 a°
O o\° o o\° o\° o a° o\° \ a° \ o a\° o o\° o o\° \ o\° \ o o o\° o o\° \ ~o°~ o\° \ o\° \ o\° o~° o o\° ~o°~ o\° \ o
NI N 1D M ri M N N M N O W 00 r-4 O ri M V) M I, 00 I~ M M O O ri N M W m ~--1 O Q n Q ri N O V) ri O
I
p Q M Q Q Q N Q M Q Q ri V) Q M N N M Q Q Q V) M Q M M M Q M N Q N N m m Q m M M M N 0
- - - - - - - - - - - - - - - -
y ri 1n ti r ri Ln Q Q Q Ln In Q M m m In m Q Q m 1n m m
1n ri ri ri ri oo Ln o0 00 M u) 0 0 0 1n 1n 0 00 00 1n 1n 1n O o In 1n In 1n
0o v) o0 00 00 00 1n 1n 0) D 00 m 0-0 mrim m o 0 o m Q 0 D D1 Q) D D 0 0 m m rn m
N N c-I ri N ri
C r04 rr-I H r~-I D) H ~ N c-I N r, ri rl ri N N N 11 N N r-1 ri ri ri rl
Oll J J J J J U` Z Z J J Z ;Z Z Z Z Z u u Z Z Z> ~ Z Z Z Z
Z) > > > > > > > > > > > > 0 > > > a a a > > o o > ? 0 0 >
o a a a
- -
c
I O V) O O O 1D O V) Ln 1n V) lD V) O lD O V1 O O O O V) Vl Vl Vl V1 V) Vl N N VI V) Vl N N W V) Vl V) 00 00 f0 ri e-I rl ri H m -1 e-i ri 1-1 e-I m H ri M m ri ri ri N r1 ri ri ri e-I a--1 ri a-i N N H ri H N H ri N ri H
m ra
I to N
= 1D I~ n O1 m ^ rl H O M ^ m oo n O O m O ID W V) 00 C IM m ri r, M O N O Q 1D ID 00 Q tD ^ m 00 LD
N O V1 00 Q O lD lD Q1 N
F I\ m V) O M Q N I~ ID O 00 i~ D) O Q Q M m N c-I Q
Q N M V) 00 M
ri Q M Vl N Q Q N m N N H m ri V) ri N N M ri m H H V) Q 2
J - - - - - - -
I O .-I N M 1D n M Q m 10 r, r 1D r` Q M O V) M O W M O N ^
V)' m rl m Q) O) M. Q N.. N lD N lfl VI N M M M M 1, r, N N N N N W -:Zr Q 1D M 1D 1, n oo Q Q V) Ln E
N V1 O n O1 N D) Q 10 lD 1D ID ID Q M M Q m m m m n r` Q Q Q Q Q I, m m V) V) m 1D 1D lD M M m m
p 0 -I 0) N lD 00 00 00 W 00 00 00 D) D) O O O O O O m m V) m m m H ri m m m M
.
~ ri ei ri N M M M Q Q Q Q Q Q V) In V) u) V) m 1n V) V) V) V) V) W 1D lD 1D 10 1D 1p (p
u! a O O
LW LL
N
V) O O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
a a a a a a D_ a a a a a a a a a a a m a a a a o a a a m a a a a a a a a m a m a a
Q O Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Zr Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
v w u u u u u u u u u u u u u u u u u u u u u U u U u u u u u u u U u u u u u u u u u
a u U U U U U U u u U U U U U U u U u u u U U u u u u Ulu u u u u u u u u u u u u u
m oo r-I m N r, m m N N 0o M
N Ln N M m r1 m N LD M M N c7 LA
0 l0 r~ 4 oo r1 oo m Ln Ln ci N r, LO
W Ln Ln r1 M o 11 m m M v
U llz M rl O m N M m .-i W 00 M NO
z Ln rn o LD o o .-I M Ln w D1 00
O m m 00 m o 00 m m w m m n -4
Co .-1 t/1 ih t/} r1 t/? t/T rl t/? to th to
u t/T to to
v
m
Y co 00 r1 u'1 N r\ M M N N 00 14
N Ln N m m r1 m N p o0 M N- W
0 w n V r, r1 00 m Ln Ln ci N r-Z
U n m m w ri m o n m m m--t (n
d M r- O m r 1i W I-t W W M N
Ln m o-:T o o -1 M Ln Lo of 06 O
CC) m m 00 w 0 00 Ln m LD 00 Ln n ri
rt tn. V). t/} r1 to to to rt to to to to
o to to to
0 0 0 0 0 0 o O O o 0 0
L, o 0 0 0 0 0 0 0 0 0 0 0
m o Ln Ln m o o 0 0 0 Ln Lr) u)
1 00 v 't v 00 00 00 00 00 v v v
d N N N N N N N N N N N N
w to t/1 t4 t4 t/} t? th ih V} to v*? to
O Q
N O
CC
F-
O O O O O O O O O O O O
O O O O O O O O O O O O
u 0 Ln Ln 0 0 0 0 0 0 Ln Ln Ln
00 c v m 00 00 00 00 00 v v v
I N N N N N N N N N N N N
CL t/} t/? Co t/} t/} t/? ih t/} tR to t/), t/)
01
m
0
m
0
N
I
00 N N N o0 00 00 00 00 N N N
~ rl a--1 r-I r-I a--I r-I a--1 a--1 rl rl rl rl
O
co
I
Q
00 N N 00 00 00 00 00 00 N N N
rl rl rl a--I a--I r-I r-I r-I r-4 e-I rq e-1
O
m
o
m O
co
o o 0 o a\ o o °
= of 0o ^ `n 00 00 00 00 00 00 00 00 r
x Ln f\ c-I c-I e-I ri r1 .--1 ri c-1
W -0
O
m
0°\°\° o o\°\° o o o o° o~°
N O O O O O O O O O O O
O1 O^ 0 0 0 0 0 0 0 0 0 0
r-I -1
I
O
r1
0 0
o\° 0 0 0 0 o o
r eo
O1 LD 00 LO LO rl 0 -1 rl r- 0
-4 LD
1
m Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln i
N Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln u'1 Ln
c m m m m m m m m m m m m
'-1 1--1 r1 r-I r1 r1 r1 -1 r1 -1 r1 -4
Z Z Z Z Z Z Z Z Z Z Z Z
c
fI o 00 00 00 0 0 0 0 0 00 00 00 r-I
0
0 Do
Ln 000
='-:t W r- m O r- M Ln O Ln t O co 00 M N N LD 00 00 M M Ln ~ N N
ZI;T r-I M N M N rl m Ln m r4 M
WJ O
2
m iD r- Ln w m o m O Ln
LLn' L/mi L) a) CD 0 W tDD 0000 000 LD w M 0
F N N N N N N N M M m ~
W Q
W
_ LL ~ H
N
N 0 0 0 0 0 0 0 0 0 0 0 0
0 U K Of or w Or w13c: a: or 0r K w
u lJJ a D_ D_ D_ D_ a D_ D_ a D_ D_ D_
UD O LD W w LD LD LD u l0 lD l0 l0
u CC U U U U U U U U U U U U
U D_ U U U U U U U U U U U U
0 LO v 00 m o0 0 r-I m
Lll LD N LO LrI V N V 1-
6 .-1 V O 1, t 4 m o 0
u C3) 00 rl Ln M 0) m w r4
M V M I, M .1 V N '1 O
CC 00 N 01 N N N LD 00 L--1
O lD Ln 11 V l0 LO N rn M
0O N V? L-1 V} V* V} V~ V>• Ln
u V) V}
Q1
K
O w V O m 00 O O lD
N LrI LO N O Ln V O O V
0 o .-i V o 1- r 4 o o LD
u Ol 00 1- vv m 0) VT VT 1,
Cl- o0 ll e-1 C' r-
C 00 e-1 Ol Ly N m
c W Ln -4 LD L0 LO
M VT to a-I V} to M
o VT in
N
0 0 0 0 0 0 0 0
U Ln Ln Ln Ln Ln U! Uf Ln
D N N N N N N N N
I Lp tD lD LD LD l0 tD LD
a N N N N N N N N
N N V} VT VF V1 i/} V? VT
K
O
co
u
ar
CC
u O (D O O O
Le) LA Ln Ln !T
N N N N N
OL LD LO LD LD LO
w N N N (14 N
w VT V} V} V). V}
O
M
O
N
D
I
(L)
W Ln Ln Ln Ln Ln Ln Ln Ln
O i
m
u
a)
I
CL Ln m Ln Ln Ln Ln Ln Ln
K '-I L•-I L--I L--1 L--I .--1 .--I
O
M m
W ~I
CL
~ Ln Ln Ln M Ln Ln M m
m
0
N
2
Ln r)
W COIo 000 0~0
O~ N N o O M rn W
r-I N
13
O
M
0
N N 11 co O c oo Z
O N N LD O m m lD
I
O
0 0 0
N n 11 ° 0 ci O
QI 00 N M •--I N
I
m
c Ln Ln Ln Ln Ln Ln
- 0 0 0 0 0 0 0 0
O O O O o 0 0 0
N N N N N N N N
f0
C_
f01 00 00 m 00 00 00 00 00
MLT
wI N
O M
00 LO M M tXl O [t N
F- LD rn Ln LD m m o rZ 'r n
1V N N 11 M M
Z
w p
J
wi r4 M LD n 00 m LO 6
or O O m m m O N N fa
D r-I N N M M M p-
F F L-'1 c-1 Lfl Ln In Lf1 Ln In F Y
LL LU m M Ln Ln Ill Ln Ln Ln
W h
LL
H
~ r
N u
u w
O
J Q J J J J J J J J
ro o 0 V 00 D1 V
m o o r` rn m a
a M o o r- m n w
u M W 0 ti,r-i 00 00
O- m N C C" 00 N lD
oc m vi oo m n Ln
0 M M N M M N 0)
m in <n V! ~ 4 V1 m
V}
v
0 0 0 0 0 0
N 0 C q C0 C
0 0 0 0 c D 0
lJ Vt V? V} V1' V} VT
CL
C
O
M
O
N
0 0 0 0 0 0
U O O O Cl O O
3 0 0 0 0 0 O
1 00 00 00 00 00 00
CL N N N N N N
6! V} Vt to V} V} V)
0
00
U
N
3
1
CL
N
O_
O
M
O
N
U
Q
00 00 CO 00
0 00 Wa-
0 ri r7 r-I N a-i -i
m
U
G1
K
1
y 00 00 00 00 00 00
K -4 a--I r-1 a-I ei a--1
0
m
M ~
661 O.
mf0 f0 f0 f0 c0 f0
61
\ \ \ \
O C C C C C C
M
M O
1.1.1 N
2 0
m
W 1 ~l w 0 0
of Ln
a
0
m
a o o Flo 0
QI N h 00 W
1
O
0
O o 0 0
01 m Ln LO °NOi~ N
1
U
m
N
C M M M O O O
Q1 O1 N 0 0
Nl D) at m m O O O
~-1 N .--i N N N
f0
C
N N N
(O1 m 00 co a
m-4 p
F- - N
Ol 10 Cl O ' N ~
ti N O O D)
V1 CT ^ ~
W N
TJ C
1 Ln %0 rl r, N N N .--4 ~ E
M
M M CO V i V V O f6
F- M M M Ln Vl V1 -
f.. LD W W LD W l0 y0
W W F-
= LL
N
F- F-
0
O W
^I^
J O_ J J J U l u J
N Ln M M W v LO M Ln M Wm LO O1 t o M M o m m v o tD -I m Ln N O1 Ln LD Ln n o ;LA
r-I O 00 N 1, M 00 Ln Ol V N n O -1 'IT e7 tt O O1 Ln M N O LO M n N n M m r, N Om oo M
t 1, M 00 -~T N m 00 r\ M N O Ln 00 r1 m Ln Ln 1, m N N Orn M i-I 00 M M O W W O M O V
p 06 I- .--I 00 06 m m r-i m Ql I~ O r-I Ln V N r-i ri N 00 00 06 r-I LD V Ln 00 00 am O Ln Ln O
a a) m o m o M Om t0 O m 00 .0) [1. O L. LO n 00 O M O-~T O r-I LD .--1 M O O 1, ri O N Ln P
ri r-I N r-I N N e-1 ri ri to in to to ri N to ri ri N N N to N N ri N V) ri r-I V} ri ri ri to cn
to VT V). V} V? V) V? V} V)- V} V} to V} V} V> to t4 V! V4 to iR to VT to V) O T^
m t/►
N Ln M M) W V m m Ln w w m m m V O M m O m m V O m ri O1 Ln N am Ln lD m n O Ln
ri O m N n M W Ln rn* N n O r-I V -~T O m Ln m N O LO M N N r` M M r\ N m co M
p V r,,- M o, N lD cl ~ M N O Ln m ri rn Ln Ln n c'! N N Ol m r-I 00 Ol M O 00 LO O M O V
U 00 r-I r-1 00 00 LO LO r-I Ol ~ ~ m 1, O r-1 Ln V N r--i -i N m m oo -i to 4 Ln o0 0o m O Ln Ln O
a Ql L O 0) O M 0) LD O l0 00 00 m O Lt) m n oo O M O O r-I m ri M O O 1, r-I O N Ln e,
m ri ri N r•1 N N ri ri r-I V} in V>- V1 a i N V} H ri N N N V? N N r-I N in ri ri V) r-I r-I r-I V? Q1
O V} V} V1 t/1• V} to VT V} V} V) to V} to th V)- V} V} in V) in in V} V} in V1. V
O N
N
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
0 0 0 0 0 0 0 0 0 0 O' O O O O O O O O O O O O O O O O O O O O O O O
u Ln m Ln Ln Ln Ln Ln Ln Ln m m Ln m m Ln Ln Ln Ln Ln Ln Ln Ln m m Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln
=0000000000 O O O O o O O O O O O O O O 0 0 O O O O O O O O
I v -;t t ;t V V V -4- -'T V cf -ZT ICT -;t v v V v v v v v Z1, -;t v v v v v v v v v
L2 V} V} V} V} V? Vt- VT to to to to V) VF to v} V? V> V} V} V? to to to to in V? V} V" V} VT VT V} V) to J
N Q
fr_
m 0
u O O O O O O O O o O O O O O O O O O O O O O O O O O O O O O O O O O
O O O O O O O O O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
I Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln
O O O CD O O o O o O O O o O O O O O O C) O O O O O o o O O O O O O O
w v v v v v v ct v ~t v v a t v v v v v v v v'I v v It -;t a v v v v v v
W V} to t4 in in to to in in to to V} v} in to to to to V} V} to to to in to V>- V-, in V~ V). V> V1. V} in
0
m
0
N
O
I
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
M M M M M M M M M M M M M M M M M M M M M M M M m m m m m m m M M m
p
m
O
a 1
N o O O O O O O O O O O O C) O O O O O o 0 o O O O O O O O O O O O O O
cr m m M m m m m m m m m m m m m m m m m m m m m m m m m m m m m M M M
O
m
0
co
o 0 0 0 0 0 0 0 0 0 0 0 0 o o 0 0 0 o a o 0 0 0 0 0 0 0 0 o
I O O O O o O O O O O O O O O O O O O O O O O O O O O O O O o O O O O
O I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
-0I ri a--I r-L ri r-1 ri ri ri ri ri ri ri ri ri ri ri ri ri ri H r--I c-1 ri r-1 ci ri a-i e--1 r-1 r-1 ri ri ri ri
X 0 -
m o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W N O O O O O O O O O O O
0 O O O O O O O O O O O O O O O O O O O O O O
I' O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
O H H H ri H H H H H W r-i r--1 -1 r-I r-I H r-I H H ri r--1 r-I r--1 H H r-1 H H ri H "I r-I
O
0\°\° as oo° o\° o\° o\° o\° o\° o\°\° o\° o\° o\° o\°\° o~°
NI Cl) Ol M M O Ol Ol Ol -zT r-I O Cl) M CF N ct -t ct V Ct Ct Ln Ln KI. Ln Ln Ln Ln m -;q- Orn r-I 00
O v V Ln V V V-tT V ~~I:T a' ct V V V' -t ~t ~t ;r V V V T V Ln
~I
r` n n r` n n n n n n n r\ r` n n n n n n n r` n n n n n n n r\ n r` n n n
N co 00 00 W 00 00 00 00 00 m 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 W w 00 00
C Orn m Orn m rn m . . . . . m m m m m m m m m O1 O1 Q1 Ol Ol O1 01 01 Q1 O1 Q1 Q1 Ol Ol
- r--I r-1 ri ri ri ri ri ri r1 ri ri ri ri e-1 r-1 r-1 ri r-I r-I r-I ri ri ri ri r-1 ri ri ri ri ri ri r-1 r-1 r-I
arl > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
_0 Z Z z z Z z z Z z z z z z z z z Z Z Z Z Z z z z Z z z Z z z z Z Z Z
C_
I' 00 W W W X! 00 q0 W 00 W 00 W W 00 00 00 00 00 00 00 00 00 00 00 co 00 00 00 00 00 00 W 00 W
LQ ri ri r-I ri ri ri ci ri ri ri ri a-I ri r-1 e-i r-I r-I e-1 r•i r•i ri r-I r-I r-I r-I ri ri r-I ri a-I r-I
a-1 a-I r-I
-a
~ n co
I N ei
= O O) n e-i Ln M lD O ri 01 00 O n O1 O M -4 r-I 00 M 01 01 l0 01 00 l0 O n l11 to n O lD ri P
F- Ol M M M e-1 00 W O I, Ln O N w zl* N w m Ln 01 1- Q1 ci a--1 M Ql M l0 w m m r-I M M
L7 V M -;:r to Ln V -zr N H N N H N w r--1 It ~t -;t m -Zt H m Ln m Ln 00 N N H N N m H -zr
z N
W M
J N
O
-1
,C
W M Ln lD I, Ql O N M Q1 O In lD N M (n r-I
m cY Ln lD f~ 00 Ol 1~ Ln lD Ql O ri N M LO 0) Ol LO LO N M G
N N N N N N N m r- 1- r\ r` co W o0 co 00 M m m m m u) W l0 l0 L/l Ln O O N N 0) rn
O r-I r-1 m m m m m 0) 01 O O O O O O O O O M N N M M
Q r-i N m V V Ln Ln LO LD 5 Y
W
LL
I
Y Y Y Y Y Y Y Y Y Y h4; Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W
~ W W W W W W W W W W W W W W W W W W W W W W W W W S W W W W W W W W W
W U U U U U U U U U U U u U U U U U U U U U U U U Ulu U U U U U U U U
Q Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U S J- O_ J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J
V M O N Q1 M O N 0 00 Ct Ln M m m 00 M l0 m m O 00 V N O 00 lD l0 O O n
alfl f` rl ~ l0 M Ln M O 00 ~ Ol m t\ M m ' O0 m N Lfl m Op N m O N lD
O LD lD Ol Ol N V 0o to rl m C O c f\ c-I Vl N O ILn l0 Ln C al 00 V M N O V
U LD w 00 r lD lp V Q1 O M 00 00 to N R LD O LD O 00 O C r\ N N 00 M O M
CL C V V M N Vl 00 oo C 00 n O C r, m r- 00 N v Ln 00 M M v} LD N rl r1 R 00
C. .--1 VT V} N M N ri r-1 N V} V} N N M N V} N V} V} Ci cl yr M V) vn Vn V
O VT V} in V} V} V} V} to VT u} uT V? V? VT' V? V! V! R
V}
co
u
ev
a-i V M O N m m o N Ln Ln rl LO rl N 00 M w r Q7 00 T O O O LO LO w O O C
In rl rl lD M Lfl M O <0 m M M V M L--1 n m r-I 00 N N Ol rl N m O N to
p O w LD 0) Ol N v m Ln Ln w oo c C r` Ln N 00 r1 Ln Ol LnlD Ol O -IM N Ol M
u LD lp 00 r- lO LD V 0) O LD N rl to N v LD O LD C3)- N ri M Ln r\ O N 00 M O 0T
n V zr V M N Ln oo m a r, r, rn V V M n oo r, N M r, r~ 0o vv i N rl .--I T a
a-I V/ v} N M N rl ri ri V} V4 N N m r4 V} N c-I r1 VT VF N V? uT m V} V? VT N
O N V} VT un V} V4 v} vv VT vT N V} VT v1 V} a
m v}
0
rv
o 0 0 0 0 o o O O 0 0 0 0 0 0 0 C 0 0 0 0 0 O 0 0 0 0 0 O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
7 Lr) o 0 0 0 0 0 o O o o O O O O O O O O 0 0 0 0 0 0 0 0 0 0
10 V V V V V V V v V v v V v V R v V V V V V m V w T v V
V V V IT V V V a V V V V V V V V 'c7 V v t v (14 v Ln V a R
C V? V). V} N VT v) VT of u* V} V? VT V} V} VF V1 of V} vv vv vv VT v} V/ V* v} vv u} u}
O Q
m F
ai O
u
o! H_
0 0 0 o O 0 0 0 0 0 0 0 0 0 0 0 0 0 CIO 0 o O 0 0 0 Cl 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CIO 0 0 0 0 0 0 0 0 0
u m 0 0 0 0 0 0 0 o m m m o m 0 0 0 o ui o ri 0 0 0 0 0 0 0 0
m o v v v v v v v c 0 0 0 a o a a v v o w Ln w w w w LD v v v
I V V Cf C V V V V V V V -t -Zil a a a C V V N M N N N N Ln V V V
CL V) In V* VT Vf V) V* Vt V} v> V} v} Ln v} VT V} V} V1 V? 14 4 V1 V} vllvl• V* th ur Vl
al
C
O
m
0
N I
0
C LD ID 10 ID ID LO ID 10 ID ID LO ID 10 ID ID lO lD lO ID LO l0 LO LO 00 LO V LD LO w
p M HI m m m m m M m m m m m m m m M m m m m m M r M Ln M M M
m
u
0)
C
DI I
C O ID O l0 w w LD O O O LD O LD LD LD LD O 00 V w 00 00 00 T LD LO to
C M M m M M M M M m m M M M M M M M rl N M rl c-I .--I Ln m M m
LW m
r OI
m n
G) O w O O O O O 00 V C W o0 .4" w w
C M m M m M m M m M M m m m M M m M M m m m M m M m M M m
.--1 N M r7 In M M m
M
O
m
O
X N
W ml a 0 0 0 0 0 0 0 0 0 ° 0 0 ° 0 0 0 0 ° O C o o
O^ N a o 0 0 0 0 0 0 0 0 V 0 0^ O O O Lmn O m w Ln Lon 0 0 00
r1 N N N r1 rl rl c-I c-I N ri rl rl rl c-1 rl N N N
0
N1 Ol ^ Ln 0 0 0 0 0 0 0 0 0 0 0 0 0 0 m o M lil Q1 0 00 0
31 LO p r, c-4 -zr 0 0 0 0 0 0 0 0 0 0 0^ 0 0 0 0 M lD M ,n 0 0 0 0
0
0
o
0 0 0 o o v o o\ o 0 0 0 o a° o o o a o a0~ 0,
n O Ln O t\ f` r t` n f\ t0 .--1 M l0 t` V r\ oo O c-I o Ln O N Ln Ol F, LD 0o
Lfl N M Cm) ll'1 Ln Lf1 lfl lrl 111 to l11 M In Lfl Vl 111 Ln T l0 N Ln V V Vl Vl lIl Ln
I
a
y M m 00 00 00 co 00 00 00 00 m 00 00 m 00 ao m m m m m m m Ln 00 0o ao
n r. n n r` rv n n n In n rv r l r` n n m m ~ n n r' r' r~
C Ol Ol Ol Ql Ol Ol Ol Ol al Ol Ql Ql Ol Ql Ql 01 Ol Ol 01 Ol Ol 0) M M M M M
- rl ri ei ri rl N e-1 rl rl r1 N rl N N r1 e-I 11 N N N N N rl ~ e-I ei ei
dl } } Ur C7 C7 Ur (7 (7 l7 Ur > } 0 0 } } } > } } } a O O p
Qc Qc ~ ~ ~ ~ ~ 7 ~ ~ O ~ ~ cQ ~ ~ cQ cQ cQ p cQ Qc cQ w ~ ~ ~
L L Q Q Q Q Q Q Q Q Z Q Q L Q Q L L L Z L L L In Q Q Q
c_
I 00 LD 00 00 r-1 r-1 r1 e--1 rl -4 rl r1 w rl rl 00 r1 r1 w w In w w w w w r1 O 'I
fa rl m N ri N N N N N N N N M N N rl N N r♦ e-I a--I m ei -4 e-1 m N N N
N ~
$1 °n a
N 01 0) M V n LD M M O C LI Ln N 00 l0 01 m lD N O m O N
F' lD O N V co rl m N 00 f\ f\ Ln V M n r1 lD N -1 O f` O N V r\ V M Ln
= N LD O rt m N CT,
m rl c-1 Ln n Ln V V m --1 r1 V Ln 00 Ln ci V N m rl N Ol M r-1 Ln no
Z
w
J ,y
F
LU
W
Z
In W r1 N M N 00 Q O r N In m CI O M f\ u0 r~ In o M rl 00 O O O N N
K Ol O1 0 0 000 0 r1 r1 n N m m 00 H rl r1 . V N n E
T W M Ln Ln LO LD LO W LD LD LD N t N N M M M M M M M V M M M O
00 00 00 . H -4 11 N. 4 ri N -1 11 N fV m m m m m M m m m M LO LD LD F M
O Q
u
rt LL O o
= F H
a
Y N rl i--I N N N rl ri N N N rl N N N N c-I N r/ N N a--1 rl N N N rl
z 0. d IL D_ d D_ d d d d d O_ a d d d d a O_ d d d d CL d d
d d d
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
U C C c c C C C c C C C C C C C C C C C C C C C C C C C C C
~ ~'O F F F F F F F F F F F F F F F F F F F F F F F F F F F F F
W C w w w w w w w w w w w w w w w w w w w w w w w w w w w w w
z d Z Z Z Z Z Z Z Z Z Z ZYZYZYZYZ Z Z YZYZYZ Z Z Z Z Z Z Z Z Z
N V ~/t I~ f\ N M n n N Q m C' lO m r n I` w lD N V r m Il - m lD .-I f-1 O m r \ V m O o O O- O m 0 0 0 LO O O O
. n cT O M M I~ f` t0 O V O Vl W O 0 0 0 0 0 0 0
c-1 O vl al .-I tD I, m q m O m o N In vl D1 O V lD m, M ,
O rl V 1~ V ~D ri vi Lo o m o0 V1 N O m 00 I~ rl to V m m LD N rl .--I lO h M m 00 M N O O O 1, w o w o' O O v1 O N O
U t7 ei In 'et N 00 N ~-1 I~ V O f~ e-I lD h N N N .--I O .--1 M F~ O ll1 1~ Vl m e-1 V V u'1 '-1 M 00 00 .-i m o 1l o I- f~ I- I~ 1~ w c 00
n m V to l0 m lD N m 0o m ul m m M M W I, m M r, C M O Ol V M C d' Dl M In O N Ol M n m i/1 n m m N o Vl cl n
0! Dl r1 N 00 O lD o_ 00 M m V tD 00 i~ V 1" i N m N M m r, n V, N M n m Vl N V m V h M N N 06 , .--1 M m m Ln f~ O N
O m n m Il o N V O N m m V n V1 m m lD w N lD * M m N v lD I, N f\ N N m N N N N .--1 m - n N n w N .--I o
m to N ah to N N N N N ci N N N ah N N an to N th to to N +n '-1 to to th aM1 c-1 to N to m an aA ah t!F aA N N aR th an ah N to ~-t N
u an to t/f to V? to to th to to t/} to an aA to to N to to
OJ
N I~ Vl f\ V O m lD lD .-1 V m N ID M I, f` n w w N N- m 1~ 00 lO O O O Ln t~ V l/1 O Vl O O O D1 O O O LD O O O
N R Vl Ol I- m r-: m V O M O lD O N In Vl m 0 m I~ <n m n n rl ry M M n f\ tq O R o lit m q -1 O O O Dl 0 0 0
N m rl V M I~ V1 m o O M m vl N O O1 m n '4 v1 O vl m lD m m m N O O O i~ m o m o O O ul Vl ID O
r, N ul r o '-1 N 00 N C O I- lO l0 n N N N O N^ n O- n V1 D1 m c) R R ~-t m m m (n Vl h O 1~ r` N n n to to m
M N lD lO lD 01 N D) lD D1 2 Ol O M M lD n m M c oc c m V m O V N Vl ~+l M N Ol n f\ Ol tll I~ Ql M N I~ ti l/1 f` V 1~
U Ol V1 N 00 Ol Ol V1 w o m m V 01 00 I~ V m N M D1 I~ O V n N M 0o N 1l1 V C n M N 00 V ~ Ql V1 M N
Ol e--I N M H
n m M m F, m r I~ O m m r M 111 m m w w N w r a m N "I W n N <D N T W N . N N M m m m
to e-1 V) N th to N '-1 N N ~-t N to to to N N N a/f to to N ai! .--I W N ah N/ to to M to [R to lA to N N a/1 aM1 N V1 N tit
O
VI to to tM1 to lA Vl to V/ V1. t/~ to N to
m
N W In 1~ V O m LD lD N R m N lD M 1~ r n LD <D N N .-'I W 1~ cy w l0 O O O lfl 1z V In O In O m o O Ow o o -o
N'T 1fl m I- at Il~ N V O to 0 lD O N l!1 Vl m O V 1~ 00 h l/1 m h h I` M M f\ n w O 'c}' O Vl 00 O -q O O Q1 0 0 0
M 1~ V M 1~ t/1 M O O M W ~n N O Ol m t~ N ti V1 O ail Ol lD N I~ r-1 n .-1 m m m m N 0 0 0 Il m 0 00 O O O 111 LIl to O
NO N to V O m N V O r, w w N N N N O I~ n O l11 n m m m o V V, m m m ~--I m In Il o n n N n n ID ✓1 00
u M N lp lD lD al N D1 lD l7 t!1 m o M M w I~ m m n o oo O a ZlM O V N Vl V1 M N Ol n 1~ al ifl 1~ al m N 1- r-1 , ! ~ t ~ ~'-I ul 1, Q I~
a m lfl N m c, m Vl tD O M Ol V rn m r-.: f ~"Z N 6 N M D1 h o V I~ N M m N tll m V m V 1, m N N w V , T In N u1 m r N
d' 00 M m I~ n Ol V I. O m m V m m m m ID m N w V V m N V to t~ N N w N N N N N M N I~ N t` m N N 111 N M
O N e-t Vl lA V1 t/~ N .-1 N N .-1 N rl to to N t/l tJ1 N tN VT to N tR N 4A to W t!} rt lA '1 th M to lh N to to N to to 1h W to '1 to .-I to
m t/1 Vl VT V} N lA th to to tR VT V} to to {A to lA
O
N
O O O O O O O O O O O O O o O O O -0-0 O O O O O O O O O O O O O O O O O O O O O O O 0 lo O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O I O O O m O O m O O O
o O Vl
u m to O vl v1 vl Ln m v1 vl vl v1 O O O O ul O to O to to v1 vl Ln In vl vl vl vl u1 O v1 v1 vl ul Ln u1' Ln m m O to
V1 Vl m m In vl v1 O O O O O Vl m m m W m ~n m vl 00 0 0 0 0 0 0 0 0 ~/1 O O o o 00 Vl o O O O O Vl vl m m m
M m N N M IM M V V V 7 M N N N N N M N m N Q V V V V cT V M V C 7 V N M 7 R V V V M m M M N M M
n V/ an to to in to {R to to W t/} M to to lA 1!T 4A to 4/T Vf V/ in lR 4n In W iM1 to to to tr< th VT to W 4/} Vl Vl 1A N iR to to th lh to N to to
01
CC
0
m
u
v
ILL,
0 0 0 0 0 0 0 o 0 0 o 0 o o 0 0 0 0 0 0 0 n 0 o o o 0 0 0 n o o o o 0 o o o 0 o 0 o 0 o o 0 n a o
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o. o. 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
u ui o o o o o vi Lm o vi o o o a o o ui o vi vi vi vi Ln vi Ill Ln Sri vi vi vi o ul o M
3 Ill m m m w m Vl o Ifl o O o m w m m m m vl m Vl Vl 0 0 0 0 0 0 In vl v v o O O m I!1 o o c o c o 1 m v ul V V In
I m N N N N N m M M V V' V N N N N N N M N m m V V' Q V V V m m m m t T a N M 3. V V V Q C N M M N V M
n trV N 4A th 1A 4A /A t!? VT IM1IA tR to N t/~ to th th to t/1 N lA tR 1n V/ to VF Vl ih VT tM1 1A to to to to W 1n lA to tR to lA',N lA t/1 to lh to
Ol
K
m
m
o O O O -o -c -o -c O -o c O O O O O O O O O O O O o -o -o -c -c O O O O O O o O O O O O O O -o o O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
u Vl o O O O O Vl lfl Vl Vl lfl Vl O O O O O O lf1 O In 111 - In - L!1 In t ✓1 V1 - m Vl 111 In O In In ul Vl 111 VI 111 O Vl Vl V O In
3 ul m m m m m Vl ul ul o O O m W m m m m ~+1 m m Vl 0 0 0 0 0 0 ~/1 ul Vl v1 o 0 o m ul o 0 0 o 0 o lo ul In V d' ~
M N N N N N M m M V N N N N N N m N M M V 7 V V V M m m m V V V N M V V V V V ti N M M N V M
nth N tJT t? to to to to In N N t// lA VT N t/? to lM1 lA th to N t? t!F to to to to N to to to tR t/T to t/f i/f N to to to to to IIA t<t to to tM1 lh
0)
oO
m
o
N
O
D_
w m a m m v v c o 0 0 0 o v m m m m m v m c v o n o o n 0 o o v o o o o m v o 0 0 0 o v a c c m v v
p ri N N N N N m M M M M N M M M M m M M M N M M M m N N M M M m m N N N N N N N
u
0)
` C
/r p
O m V Q N l0 V
y V m w m m m R V V o 0 o m m m m m COI V m a V o o o n 0 o V tT 0 V' O o m m V O o 0 o o
M M M M M 'ti N N N M N
W
~ N .-1 N e-1 N N N N N M M M M M m m M M N N N N M M M N M
2 m _
W
V W co m m m V V V 01 O o co W m 00 W 00 V 00 V g o 0 o o o o V V V C O O O 00 V o 0 o o o o m r O N lD Q
ry N N N N '-1 N N N m m m M m m m m N N N N m m m N m m m m M M- N N
O
M
O
N
c o 0 o a° o 0 0 e 0 0 e 0 0 e 0 0 0 $lo 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O O D1 O m .--I LD I~ lD In co O N m O a, O M to oo o lD m lD ID 1Il lD 1l m m m lD m m O W * W O lD o oo m M I~
cy M t!1 n to ey lf1
pl n l0 ° f\ to V 1, l0 to lD to to V I~ tD n lD cD n Vl w N l0 lf1 ID l0 ID V a V V M m ID w t LD lD W I, m n
v
- - - - - - - - - - - - - - - - - - - - - - - - - -
o
m
o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o p o 0 o D o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ° o
pI n m (D c V n m w w l~D w o* n O^ n n 0o' n m m cl kDD l~D W (DD laD V V V V m m LD lMD V n~ m m m ID Oo m n m v^i
- - - - - - - - - - - - - - - - - - - - -
O
H
O o o 0 0 0 oo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 m o o 0 0 0 0 0 0 0 o o o 0 0 o 0
o to N lD
N O o N M N M Vf o l/1 o- 0
NI m m N D1 ---I o O W m m N V M VI N 'Q m N m C V N M W N M N m m
p Vl q lD In V O m m Vl o m u1 111 M In m Vl lfl w m V Vl w Vl V Vl Vl lf1 M m M m M M M M Vl m V ll1 ~I1 Vl LI1 M In M V ul V ~ V
I I
Y m In m m m Vl m m 00 m m m in m m 00 m m 00 co CO W co m m Ol m m to 00 O m^ m 0^0 m co
m n^ 00 ^ m m t` n ^ ^ ^ r-I ^ n Cl O O
~ Ol 01 M Ol O) (3) in in Ol Ol M D1 Ol 01 Dl Dl Ol M Ol D1 Ol it 01 Ol Dl Ol m Ol c) m Ol 01 O O O N N Ory m N N N (3) N
ri e-1 N 'i N ~--I ~--I N N N ~.y N N N N N N N N N a--I N N .--I N a--1 N N N
all C7 r l7 o l'J u U U o z z C7 C7 l7 l7 U' l7 C7 C7 l7 l7 z z z a d l7 C7 l7 l7 l7 l7 U' l7
a a o a a a o a a a a o a a a a a a a a a a a a a a,a a a a
c
10000NN 0000 m m 00 ti1~ 00N NNN Nlm m 03 00ti-----as V IT oo 0.--~'--~ o~00 m 00mN00m
N N N N N N N N H N N N N M N N '-1 H
V
I
= N M Vl '-I V n Ol Vl cf 1 m In h m M N O to lD V H O Vl N t` lD m N I~ N a 0 0 0 V Ol 00 N O V V m^ N
F Vl 00 m m m to m m w l!) lD O M O M O N 01 V N N V 00 M Vl ID I~ ~ m lD O to l0 M r,, M m lD N M Ifl V1 M M~ m
ry V N N N m lp V 1!1 V tD V N ~-I M N N l0 N .--I .-1 l11 M ti .-I M V m lD t m
Z
J
r
W O
Z 00 Ol Q to I~ ul 1l 00 M V Vl lD n m N M lD 1l Ol c .--1
C3) Ol
1n WI h o m N m V lD h ti N M V1 h 0 lD h M lD H N M I^^ M M m lfl lfl V^ n r` n r` n 00 m co m co
r 0C m W m m o O N N O O O N I~ n n n 00 O Dl Dl M LD w Il n n n m Ol V cf V ~n Vl V V V '7 V V V a V V V V a
N F-- N N N p t m --I ,ma y N ti N 1, N ~-I N N N N N N N N- N N N N N N N mV mrV o W' m m m M M m m m m m m M m m m m
0 Q l/1 Vl ul Vl In lD lD lD to lD lD lD to w w to w to w
N LL
Y N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N L-2 cr :3 a d D_ Y Y Y Y C C C C c C C C C C c '9 2 2 2'' 2 ? ? 2 2 2 2ID 2' 2 7 7 7
o r r r
r r r r r ~ W W W W W W W W W W W W W W W W W W W W Z z z z z z z z z z z z z z z z z z z Z z Z z z Z z Z Z Z Z Z Z Z Z Z z z
0
. 0 a
o
U m
m D a
CL O V M
0 * N vi
co a!} V} VT
W
K
D O A
V O
n
m ID N
O R N
U V N V
cr N Vf N
0
O7
R o R
Lfj m
o m t0
U o a v+
a vi m m
o V N a
o n an v}
M
0
N
O O
u m
m m
cL t6 1^
cu
cc
O
co
u
a
00 oo
u vi vi
M M
d V1 2/1 J
Ol Q
f-
O p
0 co
F
O O
O O
u V l
=I M M
d N
N
oO
M
O
N
O
I
Gl
C V Q
u
Co N N
N
K
r p
D_ N N
W
O
X
d
W I
a, V V
o N N
O
m
o
N
0
co 0 0
p LD r
I ~
O
~ 0 0
W
p lD ~
I
O
N
O o 0
N
I N lD
p ~n ~n
I
W
I\
C 0)
wl U
v a
c
I W W
a
~D
~D
M
M ~
z N co
Z
w
J
W O
S
V WI N i~
K Ol .--I
V
Q l0 LD F
N LL 0
6
]C N N
d Y
C C
K W > `
w O ~
W W W
Z d z Z
C~ V V 00 C~ N Vl cj r v V N Vl H O O N to lf1 O lD N O n O O N r In
alD N N l0 r oc M oc c{ a N lD MN lD O o0 00 N M r N r - 00 In 1n
N N lr1
~ M 00 00
y r N 00 N mlf1 m lD M O 00 00 v nM n o N r lD N V N
00 Oi M N O l0 tD lD O O V V o0 Oi tD .--i O a V r ul O M O N N V M P
p, m t!1 M lD tD m V M m O 111 n VI m O~ m M to ~ 00 M N In N n N
to to to to uti ti 11). 4.4 ur 'j)- u? u* u* m u* u* to rn +R v} ut uti m o
O In t4 N to N
m V4
u
d
K
V 0 7 W V N V1 v n v V .--I to .--I O O N V1 o O- N O r O O N n of
y. lD N N w n w m 00 'r VI N O N N w o m 00 N M r- r ~00 In N V Il,
M 00 y r 00 .ti 00 .-t m Lr m lD M M O 00 0o V n M n O N r lD N C N
M M M N O l M O o V a 00 M l0 00 O O ^ ll1 ° M° N N a M n
U
D, m L!1 M lp W m a) V r M m lD r m
Vl Vl N 00 m M M V1 Ln to L!1 00 M .-I fir) N n N
~ to to to to V? In N .--I In th In to Vl to N i/f to M N U/ to th In lA to to M O
O an to to an N
m ~
to V W lD V N W ul N r n N N N m O N O In O lD 00 O n 0 0 w. n
N N n In n w 00 w o r m w m N V O m m r m r m n 00 ~rl V ~n
p V m lD r n 00 M m .--i O m m N m n 0 m O N r lD n M LD
U r m lD ~t o tD to n N Co N V lD m N In o LD O n V1 Ch M O N N W n lD
Cl n VI N to W m m c n V v n cf m m t!1 V a m Vl V} M 00 m N In N O
C to N to to W UV V/ N u! V? V? V? V? to a--1 <R to m to In t/Y to vT V? V} V! M DD
O N to to an .-I
M N
O
N
u o o o O O o O O o c O O O O O O O o o o o o O o c O O O
~I o o O O O O o O O O O O O O O O O O O o O O o o q O O O
n N In In lrl lr1 Ln lf1 Ln In Ln vi vi ui m o ~ ~ ul ui vi vi
v in m in o in M in M m in w in o in O O in oo o in o 0 0
cc m m M Zr M M M M M M M m m m m v M a e m N m m c m v v v
O to to an to to W Ut v/ V1 4 v1 N Lf 111 N to an to an to to to an N N N to N
m
U
O1
K
u O O O O O O O O O O O o o O O O O O O O O O O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O
V1 ul vi u'1 ~r1 ul V1 V1 vl ir1 trl m vi vi vi ui il1 Vi o V1 o ll1 m m trl V1 V1 V1
o m in Ln in Ln m m o v o m o m ~n m Ln o o m u~ m
M M M * m m m M m M M M M M M ti M V M M N M M V M M M M
to to to to to to v} v} v} v* u} v} v) v} !n Vn to lrl to .n v} v} v} V) to to Q
m F
I O
U o 0 0 o o o o o 0 0 o 0 o OHO o 0 o'o o 0 0 o o 0 o o o
o 0 0 0 0 0 0 0 o 0 o o 0 0 0 0 0 010'0 0 0 0 0 0 0 0 0
a o vi o ui vi ui o o 0 o o m o w vi o o vi in m o o o o o vi
v oo _
oo , Ln Ln o0 00 00 00 0o to oo m o 00 oo io in ~n oo ao ~n o in o 00 Lrn
N m N m m m N N N N N m N M v N N m m m N N M V M a N M
O VT V/ v! to in N v< to ir? an to to an an V! vl Vf vl U4 to N to to an tr! u4 yn vL
M
O
N
O
a I
w v v v o v v v v c v c a a V v o v o o v ao v a o v o 0 0
O N N N M N N N N N N N N N N N M N M M N N N M N M M M
co
u
of
W p
L
a v o0 00 0o v o a o 00 0
r v oo a oo v v v o0 00 00 00 0o v w v o a w
cr N N N N N N N N N N N N N N m m .-t N N N N N N m N m N M
O
_ m
2 p -
X a
m oo v oo v o 00 0o a v ao 0o ao v° ° m C
L U v 0o v oo c v v oo oo oo
~ N N N N N N H N N N N N N N M N N N N e-/ N M N M rt N
O
M
O
N
m
a' ~ o a o 0 0 0~ o o 0 o a a~~ o o e o 0 0~ a° o
pl 00 Vl N lD M a m N N N .-I O 00 lD M ti O 00 n m V O 00 lD M N
I to n m tD w w ~n v ~n a a ID lD W tD n 10 ~n CO a ~n a vi ID n ~D r ~n n
-a
o
° o 0 0 0 0 0 0 0 0 0 o a o 0 2° o 0 o a e o 0 0 0 0\ o e
NI R m o to o .--i n m m m 00 N n V fn m O V V 00 V n N M lD V o 00
p In lD M LD LD W 1n M V M m to Vl to r In In r r V V In w r lD r Vl LD
I
O
cNle-~
I N a m lD V N oo ir1 oo n m ."t n M O V ID m 00 M M n
p In tD N 1n M ul Vl M V m m to V1 In ID In a W ID V a ul Vl ID 1n ID V In
I
v
Y M M V M M M M O M V R V M M M O M M M M m m M m M M M M
n n n r n n r n r n r r n n n m r m r r n n r r n n r r
c m m m m m m m m m m m m m m m m m m m m m m m m m m m m
'a 'a a 'a 'a a a a 'a a 'a W 'a 'a a 'a 'a 'a 'a 'a 'a c 'a a
c
._I 00 0o m w w 00 00 00 m o0 00 00 co m o0 00 00 00 00 00 00 W o0 00 00 W oo m
v
oo oo
I
= n r v m o w CT N V Ln o m o m ~n m m c c N v n
U N m N N N ~m-I M N N N N N M °N N m N N n m N m O
w ~
J
Ip
W WI M m N m m N M r n 00 -zr m o m oo o m w r 0o m m
O m o o 0 0 M r m m m fn
r fn 'T 'T fn Kzr
o to c In T -It x 00 m w o ts VI In 00 m N 0 O
O lD lD W .ti o 0 0 0 o 0 0 w tD M m m m m m K m t m 1. m M m M m fn m fn m (n m M m m
m M
(o _
N m m m m m m m m m m m ui ui ~D w lD ID lD lD r
in lD lD
O LL
u
° p p p p p p p p p p p p p p p p p p p p p p p p p p O p
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 0 3 3
F w ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ r ~ ~ ~ ~ ~ r ~ r r r
O x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
w N w m m-zl- N-* c-1 M w m O m a0 Ln lD Ol N Ln 00 lD lD tf1 r~ 01 V lD Ol N N t\ Ln M N
ct r. m m ri m ri w w m 1* w m'T w m w Ln r~ w m o O r, m m m ri w w r' ri r-, oo Ln Ln
4 6 O 00 ri r-: LD 00 00 00 r~ .4 N Dl O lD Ln lD Cf ri N r-~ LD ci N 00 00 M Ln Ln -I lD m m r-
M w r~ m cr 00 N mlqr 'T n 00 M O wq w .--i lD w r~ w r~ ~--I N w m ~--i m m Ln I LO N N
LO LO r~ 00 LD M v Ln r, ri a-1 N oo n N Ln m 00 Ol ix t\ M rn O 00 Ln Lc O N t\ 00 al 00 rt ri O
r, ^ N o0 w m w 4 m w m O Ln w c) w LD Lo r, m m w N m Ln r, w m m r- m O ri w w r~
M r~ m c q ri r%l w m w O m N-q w LD w r~ Ln m N N Ln m r-I m N w wI~t N O m LD LD LO Ln
M N r, N Ln -:I- Ln ri M LD -tn It I:t M r~ ri Ln oo V} Ln m -:t rr M ri rn Ln M N m Ln M N N ri r-I
N Vl- Vti V~ V} V~ to V? V? L} tr- -C} N V} V} V} V} to Vn V} V} V} in to to V} V} V} to to V} V} V1 V>
O V}
U
r-I O O lD c-I ci ri ri ri c-1 ri lD O O lD ri lD m O ri O ri m w O O O m LL'1 w ri lD r-I O lD lO
ILIA ri LO O M ri ri I:t lz~ Cf c-I M lD LD M lz~ M ri LO lD r-1 m w w w r-I .-i m -zt m V LO M lD
O 00 TT O w 00 00 M m m 00 M LD lc:ll -:T LD M LD m,T M Cf M M LD T 4 v M 4 w M LD M w m
U LO It N Ln LD LO N N N LD N Ln cr 4 Ln N Ln m V N 4 N in Ln -zT 4 m m Ln N Ln N v Ln 00
e-i ri ri ri ri r-I ri ri ri ri r1 r-I ri r-I r-I ri r-I V1• r-I ri ri r-I V) ri ri r-I ri V? ri ri ri r-I r-I r-I ri ri
VL V} to V} V? V} V} V} in vi- V} Vf• V} in V} Vl V} V} V} V} V} V} V} V)• V} Vf• V} Ln n V) V) V? V?
C
I 3
i
LL O O O O O O O O O O O O O O O O O O O O O O 0 O O O O O O O O O O O O O
LL M m O M m m M M m m m m m m M M M O M m m m O M m m M O m m M M M M M M
w ri ri O ri r-I ri r-I r-I r-I r-i ri r-I ri ri ri ri ri O ri r-I ri ri O r-I r-I ri r-i O r-I ri r-I r-I r-I ri ri ri
Q O O D O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 O O O O
U O O N O O O O O O O O O O O O O O N O O O O N O O O O N O O O O O O O O
ri rl ri
i C
100 N N Ln 00 oo 00 Ln N N Lr) Ln N N Ln N N N O Ln Ln N Ln ri 00 Q ri c-I c-I e-i ri ci 00 co 00 c-I co -1 ri ri ri 00 ri LD ri 00 r-I 00 LO ri r1 ci 1-1 LO c-I ci co rt ci ri N
D
Y
I
_ !b n M O l11 N N N W W 00 M N l)0 w It ^ N e--1 00 N N V V) M t` 00 W LT r\ N r-I N
N
Ln TT
00 LX) M co 00
l0 N 00 m ^ m w m V O Ln r-I ri r-I m /T m ri N w
H O N h o w Ln Ln Ln Ln 1-1
C7 O m N R* O w ~ N ri LD ^ lD Ow W Ln W 1.1 LO N N W LD o M R* Ql Ql 00 O O ri ri 00 O W
z N r-i LD A M N-4 ri M M N M r-I M Ol N M r-I N r-I lD M M r-I N G1' N N ri c-I
w
J
> m Ln 0 0 0 0 0 0 0 0 0 0 w 0 0 0I~T 0 0 0 0 0 0 0 0 0 0 0 0 M ItO O O O W
m Z_ a) r- 0 0 0 0 Ln 0 0 0 0 0 al 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r1 w LD o 0 o M
N O w
I n O 00 Ln Ln c Ql N ;q- R* N M N w Ln 00 Rzr O Ln Ln N o r- Ln Ln Ln Ln oo Ln Ln ri m N
L 0 00 N rZ O O LD M 00 Ln Ln 00 00 O o o r1 W W N r~ r~ 00 00 r~ r~ ri ri ri M ri O ri 00 00 W N
rM r-1 N N N N N N N N N N N M N N M N N N N N N N N N N N M N M M M N N N N
W
_ ? o o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 o 0 0 o O~ o Olm o o 0 0
10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 w 0 0 r-4 0 0 0 0
X Ln 0 O t.6 O Lri N m 0 O 4 r. r~ ai Ln 6 6 Lri o6 ai 0 r` ui r\ ai Lri o0 0 r4 oo 6 ur 0 4 N Ln
W O O M LO N W r- 00 W N LO W W ri M r-I M r\ 00 N O 00 r-I 00 00 O LO ri N o ri O ri O o 00 m
oc r-4 N N N N N N N N N N N M N N M N ri N M N M N N M N N m M M M M M M N N
LL
O O Cr O r-I O W MI;T N N ON LD LO O O M m w r- Ln O t7 M N c-i W Lb LD O
O O W 0 M M N N m M m M 0-~r RT m o N w ri r-I ri ri V M O
O o D L=1 L=1 LL LL LL m u=.. LL D LL LL
1 N N 2 r-1 2 2 2 2 2 2 2 r I N J J F N
0 0 m Q F- m F- F- F- F F- F F- F- m F- F- F- Q F- Ln F- F- F F- m Ln a Z) ~ m
m
rte.( LL Lei L=i LL LL LL
m -t LL -zT LL LL L=i
F- F LL LL LL LL LL LL LL ~y V) V N
a-I f\ Ql w O r. Ln V m w r-I w ri r- cr N O ^ N n w O0 Ln m Ln Ln M Ln r,4 O) Ql M r, rlj
M
M N N N M w N N M M R* m ri r-I N Ln Ln N ri r"L ' ri ~t I;T LA
=CC cc c_c C_C
S1 =c _c =Sc Scc =cc c_c c_c c_c _cc c_c c_c c_c c_c c_c c=c CSC cSc J =CC c_c c_c =cc J c=c cc _cc c=c J =cc _cc _CC ~I cc T: m
` G G G G G G G G G G L G L L G G G O_ G G G G ~ G G G G LL G G G G G G G L
O F- F- F F F- F- F F- F F- F- F- F F- F F F I F F F F al F- LL F- F 1 F• ~ F
LL___ LL__ LL _ LL___ U-_ LL_ L N=__= N= LL = LL N D LL LL LL ILL L LL LL LL
LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL ~ LL LL LL LL 0 LL LL LL 0 LL LL LL
Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z
a Q a Q a a a Q a a a Q a a a a a a a a a a a a a a a a a a a ala a a a a
2 2 2 2 2 2 2 2
W O l9 LL U U C7 U C7 C7 C7 l7 C7 U C7 C7 L7 LL (7 (7 l7 (7 LL CJ C7 C7 C7 LL C7 C7 C7 C7 (7 C7 C7 C7
= Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln Ln V) Ln V) Ln Ln N V) Ln Ln Ln Ln Ln Ln Ln Ln Ln ILn Ln Ln Lo un
N
O1 N N N N N N O1 OJ N N N OJ v v OJ OJ Ol O1 4J N N 41 OJ OJ OJ OJ O1 41 4J Ol N O1 lL N OJ
H
O a a a a a a a a a a n. a a a a a a a a a a a a a a a n m a a aI m a a a a
a
Q- a a a a a a a a a a a a a E a a a a a d a d a 'a a a a a a a E! ,E 'a. a H.
Z u L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L
O V) 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3' 3 3 3 3 3
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Z LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL
N 0 LU Z) M :3 LL. LL LL IL LL LL LL LL
'
w
F- D
X
LL w
LU W ri N m IT Ln w w m 1-1 N M lD n 00 /T N Ol O ri N M m w r~ m O r-I N Ln w n 00 Ol r4 M
D o O O O O O O O ri ri r-I ri ri r-I ri N N R m Ln m Ln m Ln Ln Ln LD LO LD LO w t.0 LO LD r~ n
F- O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o O o O O O
H Q F- F F- F- F- F- F- F F- F- ! F- F- F F- F- F F- F- F- F- F- F- F• F- F- F- F F F- F F- F- F- F-
M w D D D D D D D D=) D 0 D m D n D 0 D D D M) D D n D n D D D, D D D D=) D
LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL
LL LL LL LL
0o m oo V m N Ln r, ri r~ n m m O r- ri m m N N M w Nr, V r- m r-i LD 01 Ln N r~ Tt qzT N
N r\ 1* Ln r- m N m d' q-zr Lr1 w 00 M r, M N ri ri 00 N O N Lt) C) 00 r-I 01 -~T N 01 r-I N 00 m 00
ri o1 01 m (p1 ri am N Ln Lr) ri 4 N r-~ oo r-~ ri r-~ v m m LD r~ Lf1 01 N r1 D1 O .4 ri O 'ct m ri rl
I-T 00 N N 00 01 0) 0) r, 00 N n TT 0) ri O N m LD N 00 N N M O 00 -1- 01 00 V' m n N LD n O
a-I M A O ri r~ N F, M a-I r, m ri oo M Ln LD M O O D-4 rn oo e--i m M M ri oo 01 Ln M lD LD
lD ri 06, M LD 00 Ql M 00 LO LO 00 111 Ln c-I N n Ol lD n ri Ln Lr rl 01 01 V1 M C n, N r-
N Ln N N N co Lo N ri LD m ri o0 r, R:T m o N LD 01 Ln r, m o -zt ri r,4 m o0 M O oo iii. irj- V?
n ri V} N LD M L-1 00 -t if). Lf1 00 r-I V). in N N to -~t V)• 00 m ri Ln N N V). N M V) N N I:t
N V} V} V} V} V} in in in V} V} t4 V} V} t/1- V} to tn• Vn in V) in V} V} V} 1/1-
0
U
LD ri c ri a-i ri o O O r-i m o o o m c m Ln O O a) ri ri ri ri O a-1 ri ri ri o O m ri ri
lD v lD v 1t v, LD W lD [r LD ri O lD LD ri LO M ri LD lD ri v, 't v ~ LD V V V LD L.D ri .-i ri
O LT M IT M M M~ G} ~ M M M 0 1 m T' LD ryi m M m m 4 m m m M [h 00 00
00 N V N N N Tt t7 I;T N O rn N-;t m 1* Ln M-* IT a, N N N N ct N N N N RT V M W LD
YI ri r-I ri ri ri r-I ri ri r-i ri r-I V} ri ri r I V> c-i ri ri ri ri to ri ri ri ri ri ri .-i ri ri ri ri ri r-I r-I
V} V) i/} V1 V} in vi- to vi V1 V} V~ in in in• VL to VY V} V) Vi in vi- V! V? in V} in vi V} v> V} V}
C
LL O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 010 O O O O
LL M M m m m O M M M M O O O M M O m m m m m O M M M m m M M M M M m O r-I M
W ri ri ri ri ri ri ri ri r-I ri O O O ri ri O ri ri ri ri ri O ri ri ri ri ri ri r-I ri ri ri ri ci ri ri
O O O O O O O O O O O O O o O O 0 O O O O O 0 O o q O O O O O O O O O O O
O O O O O O O O O O N N N O O N O O O O O N O O O O O O O O O O O O O O
ri r-I ri c-I ri
C
I ri N N N N N N N N m O N N N N N O 00 00
Q N 00 00 00 00 00 00 W W W 00 00 00 00 00 00 00 00
p
2 m r ^ oo -:t Ln ri r~ M LO 01 Ln M Ln LD Lf) V 00 <7 Ln O LD Ln O N M 00 v ri N ri r-1
N N m O nI;t r~ rn rn M r- 00 T* N am ri 00 NIzil w O m O N M N ri ri V oo lD Ln
z 00r-I 00 O N ri Ln N Ln 0o rr-i Ln N 00 Ln 00
N -1 r, M Ln Tt O ~ r~-I rr-L r-i N ^ rri r~i M Ln r-( Z
LU
J
> 0 0 o o d o~* 0 0 o O o o m o 0 o o ri LD o o o o 0 0 o o o o O o o v~ Ln
m z O O O O O o LD 0 0 0 0 0 0 0 0 0 0 0o r- 0 0 0 0 0 0 0 0 0 0 0 m 0 m m r~
I m N 6 O O oo O oo N n O m ri o0 oo N M ri 4 m O N 4 N O oo m w* zt ri Ln rn m n
m oo m w m w 0~* m r- o n m oo m r~ ri Rt o O oo n O oo w m Ln m w w w m m w to n
M~ N N N N N N M N N N m N N ri N N M N m m N N m N N N N N N N N N N N N N
W >
Z o o 0 0 0 0 0 o.:To 0 0 0 0 0 o 0 0.;tri LD O O O O O O O O O O O O O ri O
X I O O Ln O O O O O LD 0 0 0 0 0 0 0 0 0 v Oo r- O O O O O M 0 0 O O O O O r` O
00 m m m Ln N 00 m m N m N O 00 N r-i r\ Ln V m ri O N O N ci N O 00 LD Lr) N O 01 00
W 0 RT O M 00 00 M ri LD LD 00 n N 00 Ln Lr) M -Zr ri O O Ln O O 00 LD Ln 00 r~ LD LD V1 r\ r, LD n
w r4 M N N N N M N N N N N N r-1 N N M N M m M N M M N N N N N N N N N N N N
LL
Ln M
N Ln p n O O Ln m^ O Q1 0) r- O e-1 O O ri O Ln dT 00 00 rn Ln [t m r,
p M N 0 ri o 0 0 M M= O W N^ N W Ln m r, r~ o N 00 00 r, n N n r~ n n r~ rl, 2 2 LD
- c2 c2 cx 2 2 c c2 c= N N c2 2c N c2 c2 cx xc c2 c2 c2 cx c2 c2 c2 S2 c2 2 2 c2
G G r-I G N J N G ri G G J J L G G L G G G L G N G G G G G G I I G
O H H m F- Q Ln Q F- F- Z) Q F- F- F- H N F- F- N F- F- F- F- F- V') F- F- F- F- F- H M Ln F-
ri ci d 0 2 2 L=L_ D D D d 2 2 2 d 2 2 2::) Z:) J J 2
LL LL N LL N ~ LL LL O LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL
I
p Ln M W M ri ~ O 2 00 M O ri N Ln o0 M ri O cNI N ri O Ln z r, m oo m m LD N r, M N N 00 N ri Ln 2 ' to Ln LD LD Ln LD LD O r` n 00 00 o0 r, n r, r, r, r, r\ ri O O 00
1 2 S 2 2 2 2 2 H S
:E TL N N S S N 2 2 2 x 2 2 2 2 2 2 2 2 2 2 2 2
O F- F- F- H H H F M r o I I F- F- I F- F- CO F- F- F- F- F- F- F- F- F- F- F- F- F- m CO
F-
m LL~ NI ~ L I N N Z) D D Z) ri Z) I 00 00 =1
LL LL LL LL LL LL LL LL V) LL p p LL LL LL LL LL LL Q I lpL LpL L=L LL L=L L=L t=i LL LL LL c( rl) c LL
Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z z z
a a a a a a a a a a a a a Q Q a a a a a a Q a Q a a a a a a a a a a a a
LL61
LLI C7 C7 C7 C7 t7 C7 C7 C7 C7 C7 LL LL
LL C7 C7 LL C7 C7 l7 C7 C7 LL C7 C~ C7 l7 C7 l7 C7 l7 C7 C7 C7 l7 C7 l7
Ln V) Ln Ln v) Ln Ln Ln Ln Ln Ln Ln (A V) V) N Ln Ln Ln Ln Ln Ln V) Ln Ln Ln Ln Ln Ln Ln Ln Ln V) Ln (n V1
N
H
~ N N 4J N o1 N n lL N N OJ v N N lU v O) ~ N O1 N fU lU lU N 0J aJ v N N 41 4J N N OJ N
O n n n a n n a n n n n n n n n n n n n n n a n n n a n n n n a a L1 Q_
n_ a a a a a a a a a n n
H a a a a a a a a a m a a a 'a a a a a m a a a a a a a
U v OJ lL N lL lL 01 v
U v N N o1 N v N fL 0J N o1 . o1 v N N N N N OJ OJ N
Z L L L L L L L L . L . L L L . L L . L . L L L L L L L L L L L L L L L L L L L L
O L 7 7 7 7 7 Y 7 7 7 7 7
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y 1 7 7 3 3 7 7 7 7 7 7 7 3 7 7 7
Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Z LU 7 7 7 7 7 7 n 7 = 7 7 3 7 7 3 7 = 3 7 7 = 7 3 3 7 3 7 7 7 7 7 m 3 m 3 7
p LL LL LL LL LL LL V) LL LL LL LL LL L.L. LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL L.L. LL LL
W
x p
Lu Lu
LU LD n oo O e-I N M V Ln LD oo O ri N M Ln r~ m O ri N M -t Ln LD r~ w m o ri N M ct Ln m
p r~ n N r~ 00 00 00 w 00 00 00 w m m m m m m m O o O O O O O O O O ri ri T-i ri r-i r-I ri
O O O O O o O o 0 0 0 0 0 0 0 0 0 0 0 ri ri ri r-1 e1 ri ri ri ri ri ri ri ri ri ri ri ri
F- Q F- F- F- F- F- F- F- F- F- F- F- F- F- H H H H F- F- F- F- F- F- F- I- H r- H H F- F- F- F- F- F-
LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL LL L.L. LL LL LL LL LL
I, N N O N M Ln M
M mI;T -;T m IT t,D M
r, tD M w 4 lD Ln l0
mwNor-immN
w O N :Zr r` N m o0
Lr lD rl Ln 06 N 00 -Ci
a) 00 LD O 00 r-i [f Ln
t .1 Ln 00 to i, N r.i
N [J} iJ} 4A. in-
O th M
U
lD O O ri -1 tD .1
H M w wICT IT M r1
o to r6 M t.6 o0
U Ln -ZT N N Ln tD
I .--I rH r-I r-I -4 r-i r i
t/L to j/} {J} in.
C
7
LL O O O O O O O
LL M M M ri -1 r-1 .1
w .1 a1 ri r-1 e-I r-I r-I
0 0 0 0 0 0 0 0
U O O O O O O O
C_
I 00
a c-I c-I c-i ~
~i 21 N N M lD Ol L`nn rn
r, 00 N N -4 0) N
Z ci M l0 ^ O0 c-I
w
J
> N O O O O M O
m Z_ 00 0 0 I~ O N O
-1 Lo Ln r-i w m 00
e-I I~
0 m w O cl'
M~_ M N N r-I N M N
W
Z O O O w o O O
tD O O o, O Ln O
X W m 00 Ln W m w v
O r-I N N Ln N r1 Ln
M N N N N M N
LL
N t-- N
O w O m r-1 Ln
O r-I LO O r, O M
01 J N
O a a m F-
t-MV)
LL MLL mU-
Z
Z
W LLn LNn -I m
ccI cc cc Scc CSC cSc Ln
SCC
G G G G G G O_ G
LCLg,- LL LL LL LL LL LL
S
LL
Z Z Z Z Z Z Z
~ a a a a a a a
w
LAJ = t/] N In lJ1 N Cn In
tA
Ln
0 !Z !Z !Z !Z _Q !Z !2
d d CL O_ D_ D_ D_ 0_
Z OC d N i! v iJ iJ L1
O N 7 7 3 3 7 3
4-1 Y 4~ ~ Y 4-
w
Z O LL LL LL LL LL LL LL
W
X
w wl
w I~ 00 Q1 ri N M Gf
S ei ci ri N N N N
e-i r-i r-I ri F-i r-I e-1
H
~ 7)
w D LL LL LL LL LL LL LL LL LL
EXHIBIT B
APPENDIX C
Model Output Sheets
Appendix C
Cf)IJFI'.F$TA7lON
d.*--fdr R-" V.&7
IDR
Im ml m~~,~m
>I a m m a o °n° .Nn °a n° rv m N W m rv o m m m o r m' in o °o T n m ru'i S, oN :9 vmi m m o o °Q m m m o rO1i en .Qn n o m
Q M M N M M O N .-i O M M O M m lV M
I
° m N v01 v01 ~/1 M N M m m N W N O S m n n M M m N in M N S O o o N N .y n m h N m M m N l0 M
I~ N r m N M I~ ~ M n n M n O Q Q M m M 01 Q h V1 N N N M M M M
Q N N N e1 0 0 .y ri O~ ei 0 0~
3 al z} Z y Z Z Y Y Y 2 Z z Y Y Y Y Y z z Z Y Y Y Y Y Y Z Z Y Y Z Y z j z j Y y z y z z y z y y Z j Y Y Z Z Z Z y Z Z y Z Z j Z y Z y
3
O m P N W m O N O ti O O m n^ N S m of N O M M O n W m~ M Qi P T W b N O Q° m m
t0 n n lp Q tp t0 m tl N O
~nlf M O V~i O V O m N Q i0 Q O O O l0 i0 Y1 N ~O Omi Op m of Q O. m m m P A O~j e0
_I E v n
^~e < vi v ~c v c N ti of of v o m vi oc v+ v v v m vi ai m vi v c ~ oc n vM~ .c N ~ ec ac ti ~ o I: tiro ~ ° n m
ZI m n N m o on m o N e o rv o
m N m N rv n m o- m in m N
m M o N o m Q N M v m ml M e m o m n o m m m m m o ro vrv n o m o c m m
v E m N o N o o N N o r.r N m a M m o m N o m t° °o m m m o rvm n M m m m m m
m m .n m M m v°~i ~o ~n m M m m n o n Q a m m o m m m .n m N a .n Q m .o ~c m m m
0 0 0
o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .":'oo 0 o o 0 0 0 0 0 0 0 o 0 0 0 0 .-i o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0
is iv ac n N m ~n n m m m N m Q .n r N m m
x m o 0 o m m m m m m m v n o m m m m m m m m m m o o m m m m m N a+ o o m m m n n m m m °v 0 0 . 0 0 0 0 0 0
Ic ..00000oc000.. .:cooooo000000.-~.:ooc0000000.+ocoooooo.. .-io.+
V
o l
~I
d« m h h M Omi N ti m n N N N m N W m m n O m ill m O O m O m ~n M m O1 N N O N 'i N m n M n n
N N I~ N m O H M Q M M N I~ O Q .y Q N M Q n Q
S o y N O rv ei O .y ti 0 0 .i O O .y ri 0 0 .y
O
o v°ii o °n ° m m m is m in vmi N a .`r u' W o o N m m rv e vmi Qm m o n m~ ~ o m m N °e vv'i m .m. 1° ~n M m m~ m m m
Q m n n a0 m Q e m n m o m m o o m m m m c oo m N m n .N. m m m ~ m m m n .n o 0 o m m m m W o m ~n a o m vnm
~J m v v~ n a, v n m oa m m ~n ~n m m o ~c W m o ~c .n n m s m .n m v`"i .c v"i
l0 0 0 0 0 0 0 0 0 o o ri 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c 0 0 0 o 0 0 0 0 0 0 0 0 0 m o d o 0 0 0 0 0 0 o 0 0
c
wl
m oo a °m ° n .Q+, m °n° oo m m .°o, ~Ni n m vu'i M m m m rv m^ M Q m m N M .y n Q m m m o m m m^
m Q m in m o o io n rn ~c a rmi a ~o 0 o Q m m m
MmMMN MNMNM~nmMMMMNM mmMN.. MNM.a ,.iNMMmMMMMMmMMMM
mE m. ~ o ri v m ni ni M m ~c o m m v M
-O d d d a d d d d m a d d d d d d d d d d d d d d d d a d d d .1 .1
1. 1.
4~ 4! 't V J 't 't w 't t t 't 't c 't 4! 't 't 't 'C 4 t c 'C 't 'C t
d N N N N N Vf N d d N N N N d Y N N N W d N W d to to N d d N Ian N a d 1~n
1. Tw
W d d d d d d W d d d d W d
LLI a
d m
a E m m W n Q Q Q n n Q m m m m m m mmm m m
t o m
o W o 0 0 o m o o v m m m m o 0 o mmm o~ o 0 0 W v! m M M
m m m m W m W m m m
N N N N N N N G
O M N N N N N N .i 0 0 rl o N tV O C tV N N Q Q Q M M M fV N
nl n m0 mo m O N Q N N ~n ~n N Q N m m m W N mom m m o n N m m ~n m m m m m m
A 3 a M v m o o m o m o 0 0 0 1 i m m M o N Q g N o o g o e o v rni rni o 0 o m m .y 0 0 0 0 0 0 0 0 0
E v .c ~n e v Q v v v Q v v o n ~ ~c v e e v c v o v v e v e ~c ~c v c v v v o o v v o .u c v v o o e v o a~ a s n o n ~ .c .c .c m
d N N N I O N m N N n 0 m N N .n O N n W W O N O .y N O N n ew m N ~D .y o O O .i W v1 M m N m N m O N O O M Vf O N 0 0 0 0
O O S O O O O O O O S S O O O O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S O O O O O O O O O O O O
M S S O O O O O O O O O O O O O O O O O O S S O O 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O
W O O O o O O O O o 0 0 0 o O O o o O O o o O O O O o 0 0 0 o O O O O O o o O o O O O O O o o O O O o o o o o O o O O o O o 6 o O o
o
gggra°a°a 64 44~aa^xx~x~a°4$a
I n m n m m m n m a+ n rv m m n o .r m W W M o m N m m m n n m m o
LU y m n n n n Q n a m n o m n e n n n n u m m n e m
al
> M m o m I o Q m I N m rv N o m I Q °v m rv N~ Q m o N^ e m rv M Q rv m Q N ~n m n~ o Q
z m .n a m m N m o m m in m o n o+ o m o ~c rv n m o m m o .n o v a Q o 0N o 0 0 0 0 0 0 0 0
t o ec of cc o u~ au ° v M ~v ro 4 a ri d m r° ,n o o o° .ri a a a° o a m oa o ° 0 0 0 0 0 0 0 0 0 0
p N .n o ~n rv o rv .n o v+ m a v a a m ~c .c ~n W o m N Q Q ~c o o Q Q N rv o 0 0 0 0 0 0 0 0 0
Nom m v+ Q o m m m m .n Nm m
M .n e o n N e .n m N M m Q o o Qe i~~N,
> e o vmi ~n o e m o N N Q
o rv n m N M o o .o m vi m o o m oo m o in o o° W o o m o o v o 0 0 0 0
O z o ai ai oc ° ~c M .,i ri 4 of o .ri o c rv vi R n o o m o n v v°< v o co m ri t o o W 0 0 0 0 0 0
LL I N M° N n N N N N m° rv N~ M N e N N m M N N N° m N O N rv m 0 o M 0 0 N 0 0 0 0 0
Q N M N .y O+ OQ O rv 0 W m 0 rv 0 0 0 e a a m M m m W a n 0~ O Q N N N O Q O m O M M M W O 8 0 0 V O Q .e+ N O r Q0 O rv m O Q ~n i0 n m m
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O°° 0 0 0 0 0 0 0 0 0 0 0 0 0 0 S O° O O O p p 0 0 0 0 0 0 0
z f F f°° N f z N° z z z z z z z z z z
om¢¢ammaaaa~~mvrv°'°'aaaa~~~~mmaam `°~~~a~mmmmmmmaNNQmQ'm m~~aa~~l
aa
wdaaa~mM a aadapaa a 'aaa -m m. a a a i Oammm.mn 2 2 2 Miaaa a00 a Oad apa a' a a aaaaaaaa
o m Q rv N .Q, M ~ Q N N m N o m m m .c o o ~ Q m o ~n n m o m m W ~ N m m ~ in n ~
o 0 0 0 0 0 v Q o 0 o a o e e o o a o o.
O o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o o o o g o 0 0 0 0 0 0 0 0 0 0 0 0° o 0 0 0 0 0 o 0 0 . z z
f ~ z ~ z z ~ z z z z z N
m f° m a a m m m m m n a a a a a m m a m m N m m m¢¢ N m m a a a a
a M m m m m m e ~n .o m m ~c .c m u n e m n e Q Q m~ m ~
Naaaaa saaaaaaaad aaald dod derma m00 maaaaaaaaaaaaaaaaa
~I
F N o Q M e M o^ Q rv N m m Q rv mQ m rv m m m n n n m ,o M o m N W m e Q m Q
O o umi m N e. o W v vni o a m v °n .mv N n n v° n ~QC ~ m o n m m a m o o N n m v ti rv o m N Q M e
"Fim
z
w a a u u u a a a d d a d u d a
„ u u °u u u u u u u u u m u' u° u u u u° uuu u z u u u °u u o u u °u uuu u u u > u' z u o u u m m u" m u u w
W>> W¢ z m o n
E m
°i u
a n m m m m M M M M m m m M M M M M m
m mmm m o m m m m m m m m m m m m m m m m o+ ~ o+ ~ m m m m n m m m~ ~ .m+ g o m m nm'~~ g m m
~m-
r r r r r r r r r r r r r r<<<<< r r r r r r r r r r r r r r r a r r r r r r r F r r r r r r r r
a a a a a a ra ra aaaaaaaa ra ra ra a ar aaaaaaa ra ra a ar a a a a a a a a a s ra ~ m a a a a u u a ra ra a a a a a a a ra ra a
CI N n rv ti Q e n N N N H a e .y o nee Q m in N Q N a a on o
n n I'm m m ~ o
T
d Z z if z z z z z Z z z z z z z z z z z z z z z z Z z Z Z z z z z z z z z z z _z Z Z Z Z Z Z Z Z 2 2 z z Z Z Z Z z Z Z Z Z Z z Z z Z
a a a a a a a a a a a a a a a a a a a a a¢¢ a a a a a aaa aaa ¢ a aaa a a a aaaaaaaa a a a aaaaaaaa a a a a
m ~U (D (D -D LO 0 m m m (D LD (D m m
7 p m o n N N~ O m rv n o m~~ m~ W m o m n o m W ° P rv rv M N N o~ N m o 0 o n m o o~ N M Q m n
~ r -Im m m o n o n m m o 0 o m ti~ ~ °m o rv o o m ~eM tee, m Q °v °v Q a o 99" 1 2 2
<
m m m m m o+ a m e T T m o c
n
a a s d n d ly°
p y w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w
Ci w w w ¢ mmm wwwwww c c c c c m w w w w w w m w w w m ¢ z w w w w
o u u u u u uuu u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u uuu uu
N h m m m m m m m m m m m m m m m m m
m m m m m ww m m m m m m m m m
m mmlm
vt m m m O O O N m m ~ ~ m n M 0 O O O Q N N m O m m ~/1 >I O N N m m N vl ~ N O m O^ m m e m e
p m M O m 1~ m m N N m e m M M m O~ Ot Ol T p1 m N n n VI O n Ol m vl m O pf m n p~ O O~ o m O m m^ O^~
M V O V N N o 0 0 M M M nl M N O N OC O N M O
°I ,y R m m o vei vii n .e. ~ M m m m M rv rv rv rv IN N rv N N o° 0 0 0 rv rv N m o o m o N n ry rv o o N N
°rv M c m m m a m
a O O O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 o 0 o 0 0 0 0 0 0 o 0 o N o 0 0 o o N o O N o
3 a N Z Z N N« N H Z N N o 0 o ti N p p p a p p N i° w N°° d a a o o o o y o o o y o o o o N p N N N N
Y > Y>>> Y> > i Y Z Z Z z y Z z y y z j Z Y r Z y j z z> Y Y r Y Z Z y Z Z y Z y 2 Z z y z Z Z j Z
m
I
F: , m n rv m a+ M N m N rv M ,°p M ~n N u N o N a N
o a m m m N o, o o ^ N n u N e m o ~n m m o N m rv m m m a Q
mmmm m m o m m m m n m m o m m m N N ~c m e m m n m m m o o o+
E m co v in rv e rv ac v v m m e v v m m a ri v c m ui c6 v m .ti a ri e o v
ZI m m o m Q N m o Q m vt O m n Q n O N,o m O Qm I o O O m m O m m W O Ve
o 0 m o Q e m o o o o m mn
O O O O o o 0 0 0 o 0 o 0 o 0 0 0 o o 0 o o o a n .n a V M. a N O o a
°
m. m m m m rv m m m~ m m m m c~ m m~ b m
-I m N N m m m M rv N N e v V rv rv w m o 0 0 0 o N m m m.. m m m m rv rv rv o i
wl O m T . O. p. O. . . . O. N O H M m m
0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O G C O O O O O o o 0 0 0 0 o G O 0 0 0 0 0 C G 0 0 0
V
~I N
I o+ m m mI o n N n M m rv i n N rv rv rv n n o m o 0 o m rv rv o 0 0 o m N m m i° m m o o m o .n m m u+ m .n N N N m v^ e
°1 m m m in in m v N N N o 0 0 N N rv m a M m m a m rv m e
-666 .3 0 0 0 o m .416 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0- O o 066
3 0 ~
o n n M
°m..NH $ no+ m m~ m mmn ° n~NOO+m~ Boom N^on ^o~N mm
e °v rp'i ° rv m tO .m. N o N ~o o m o m m ti °o ~ o N m Q, m H m ~n m o n °m °n° ni n o n ~n m ~ M m m °
0 a a o 0 0 0 0 0 0 0 0 0 0 of o;m rv m m rv M o o rv
pl ~n a v v m m M N 0 N m m m m 0 0° 0 0 0 0 0 0 0 0 0° o° o
l0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 01010 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
a
~I -
L m m o m e m m m n m m Q m o m N N^ m o Q M m m r° ° m° a^ m m mn m n m
m m o o m m m m a n m m
~o m e e Q m m m o o m m m co n n .mn no
O d M c v Q m M m .N N .i N M N N M m 0 Q M
>
d d d d d d d d d d d d d d d d d d d d d d d d d d d d
It 'It
vii H H . ~n ° = N N N M N N H N vn v vi vi vi ~ ~ H N ~n N v. H . N ~ ~ ~ ~ N H ~ N
O d E E 2 a E E~ N a d N W d d N . N N d d N d W d W d Cd! N d N d d W W N N
- - - - - - - - - - - - - - - - - - - - - -
wl a
a E mm m or°.i°r°~r°~r°rvr rmir ^`"r°~Hoe°~°Nr
0 m m 0 0 0 0 N N m
m 0 o o 0 o m m m o o ti .m. tim. ti .m. .m. mi 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o .m. .M. 0 0
q 3 N o O N N O O O O O O 00 O O O O O o C O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 66 rl G O O C o
d °
M A~3 OOMmrmno0ou~~ooorvrmi rni r^irvrvrvrvrvrv.m+ouo°o,~o0oo.m...titi.m..m.rvrvno:°..m..m..v'. .v'+coacevMi_a vu'i v"'i vmim vmi Lq .
LW E c e a Q v c o 0 0 ~c ~c ~u c v o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 o rv o 0 0 0 o ri o rv H o
r d N m m n o o m n no ti o+ m o o m o H rv o m m m m N M N o .n m N n e N Q N N m o ~ m o o N N m n
M O O V Q e V Q Q O~ Q N N o0 O~ a e 0
0 0 0 o O O O O O O o0 O O O o 0 0 0 0 0 0 0 0 0 O° O O° O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O° 0 0 0 0 0 0 0 O O o 0
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O O O o 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 o o O o 0 0 o o 0 0 0 o o 0 0 0 0 0 o 0 o 0 o o o o o 0 0 o 0 0 o o n o 0 o n o o o o o
2 s
X Q o $ m m °a m n M I a w I o m m~~ ny m m m m m m o o 0 o n~i n o M m--- rv- m per`, - v m m ~ a `O o c~ rrvi a m °v 1° vmi v o m u~i
LU
> N m rv n m °v N o Q, ^ rv n n m m m ~n m m m m n Q N m ^ o
?Ip;°o °o~88°0°o°o °OO, on . '^oNmo mio uiommmoomo 0 oo o°vom m v~o ~n oommon 0°00
v a I. umi o v rv ^ ~c ~ o m e° n°~ cc m efi a N o m o cc o
N O O Q O O O O O m O O m vl N m m m m m n N p~ m m m W N p n n n m O m o 0 0 in a v~ m e Q M M N e V O N
r
m N m n m N N N m I-,.. m m m N N n v1 O' Q
2> O m o O O O° n 0 0 0 0 0 n N m Q~ m O m V O m Vt Q m moQNOOe ~nO n m o m O O n O O m
w ac o .+i 6 a6 ' o o ° a~ o m
p z o 0 o 0 8 0 -4 0 0 0 0 o v v c6 vi is n a; 0 ai v ai n n o o
-I O in O O O o O m o 0 o 0 0 vt v1 N N m m N m N N N N m m N^ m O O I O O n 0 ~n N N N N N rv N°° N
H N m m o m N N n N^ ~n m o n rv o e m m e rv N N n ry rv N m n m m ~n N m rv em o a o o N m nom `o eo a s
°o °o o °o o °o o °o °o °o o °o °o °0 0 0 0 0 0 0 0 0 0 0 °0 0 0 0 °o 0 0 0 0 o° oo 0 0 0 0 0 0 0 0 0
Z z z z z z z ~I~ f f f F z -z z z z N f
T v¢i v¢i ¢ o o m m m m m m m m m m m m m m m m m m m n m m m m n m m m m m oo v¢i v¢i v¢i v¢i v¢i d' m m m m m v vmi v¢i a m m
o v¢i o m m¢¢¢ n n
w ~a a d MU T a OOO O O O O O O O O O O O O O O O O O O O O O O O O O O O O o 0 0 0 MU a O d d U o o U U d U
n a a a d a O ..~N,^ N m e in .n m n n a mo e m o m m m n
o o'N m 0 0 o o m o o o m N m m oM
0 0 0 0 0 0
° m N,o omo 000 0 0 0 0N0 0 0 0 0 0 o S 8 g .88
z °z~ z z z °z °z z z f z °z °z °z z- f f g
sI ¢ 0 0 0 n n¢ v¢i Na u¢ m m m m m m m m m m m m m m m mm mm mm mm m m m m m m m mn mn nm w m v¢i v¢i v¢i m v¢i a m vmi m m vmi a umi v¢i m m m
N O d n o o a a 0 28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 p O i d d 0 0
x
l7 I
~~'mr~mmm~m'..^mmvm.mn u~Maa oN ~oom~ e°~ O1veeNO+amveio vmi °°~oo.n.vM°Ne~Nom^em°m°nm
Z
d u u u u u u u u u u u d u u u u u u u u u u u u u u a u a u u d a a d a
I u u o u u u' 3 u > > > > d > > > > > > a > a > > > > > > > > d d > ' > > > u °u u v u a °u u u °u a u °u u
d o a o o a o a o>>>>> o>>
m a>> o o>
„ m m z m m m c a a a. d a a n a a d d a d d' a a
E
M M m^ o m m m m
m 8 m m
m m m o tO `O `O `o i° 0 0 0 0 o m m m 1O 0 0 0 'r' " ^
0 0 0 D m m 0 0 0 0 0 0 0 o S li a > rV Z Z z z z Z z Z z U' m u u' o o Z V o u Z q,2
z z z u o z o V Z
< R
c n e e N Q n o n m m m m m m m m m rv rv N rv N rv m m m m m m m m m N m m m m m° ~n o 0 o m o ~n vi .n m .n o m
v rv
w Z z z z Z K Z 2 z Z z z Z Z z z Z Z Z z z Z Z Z Z z z Z Z Z Z Z 2 Z Z Z 2 z Z Z Z 2 Z Z Z Z 2 Z 2 Z Z Z Z Z Z Z z z 2 Z Z 2 Z Z Z
rrC Q¢¢ Q Q¢ Q Q Q Q¢¢ a Q¢¢¢¢ Q Q¢¢¢ 6 6¢ 4 Q Q 6¢¢ Q Q¢¢ Q Q 6¢¢¢ 6 Q¢¢ Q Q 6¢¢ Q Q¢¢¢ 0 0 0¢¢ Q Q Q¢
SSS N N N vVi vVi vVi vii vii vVi uVi ~ vii vVi uVi H ~ N ~ uVi uVi H H ~ ~ H vii vii vVi ~ ~ N vii vVi H ~ ~ vii vii vVi ~ H ~ vii H N ~~i+ ~ ~ ~ vVi N ~ vVi N H H ~ uVi H H H vii vVi vVi H
m .m. m. o .n m n m m o 0 0 o m m n m u+ m r`ii rrvi M N v~ n m m n o m m m °m o rv H~ m m m m rv m ~ m
p r-°~ a ~Q,~ a v a a a a v ~n v~ ~n m m m m m m m °m °o+, m .Q. m ~o $ e m m m mmm m m o+ m mmmm ti rn'i e Q ~o m ~c m m v m m a
~ w io m .c ~c m mmmm o m m m o m ~ m e~ m m m e
c
a
a s= d i a n o a a d d i i= a d a n x a a i a d a a~s d d a a= a d a a n d a a= d d d= d d
u Y u Y Y Y u Y~x Y x x x x Y u x x u Y x x Y Y x~ Y Y x _ _
a " w w w w w w w w w w w w w w w"„ w w w w w w w w w w w w w w w w w w w w w w w w w w w
~ ~ ~ c ~ et d a
GQ~ww~ww~w1ww~w~~ww~~wwuu~wwwuwuuuwwuuuw w~ as ~ d6 add
° u u u u u u u u u u u u u u u u u u u u u uu u u u u u u u u u u u u u u u u u u u u u u u u u d
w w w w w w w w w w w e e e e e e e e Q e e
u u u u u u u u u u u u u u u u u
N n w m m m m m m m m m m m m m m m m!ml mini m m m m m m m m m m m m m m m m m m m m m u U U V U U U V U U U u u V V U u
> viOi r e `v n n m m m m m rm r m o 0 o N .-r e m m m
p V o m .D ti O? O~ n m m n tp tD v^1 00 00 n m op .y e m n oG N O O O O rv N N. i N N N m 0 m Q 0 Q. N
'O N N O N N O O M Q N N m N N O Ci O Q Q Q Q O O Q Q M Q M m v m v m
Q
pl ~ Q m N n M m b m M m m rn o m ~ o o e^ e^^^^^ Q m m~~ Q
m o Q o Q. e rmv a s v'^i m a ru'i iv m c o ro n ro m m ro o m+ N N r`iv S e n n is m m o n ~o .c io
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 o o o o o o o 0 0 o o
Y QI z v d z d z d d d z Z a z a a z Z a 2 a 2 2 Z d a d z Z Z Z Z Z Z a Z 2 Y Y > Z Z Z Z Z Z Z Z Z
Y Y Y > > > > Y Y > > > > > Y > Y > Y > Y Y > > Y Y > > > > > >
la
3
o e m m m m a m o 0 o m m o+ m m m m n m e m Q m m m m 00 m o Q m m
m m m m m .m+ iy m n v a m oo .n m m oo v, o m m a n n m n v`"i m e vi N e m m o u up1i m n m m n m m N n m n
o m m m
-`IEo000.. NooN Nv o 0 o0000 o 000 o o...-+ o 0.-+ 000 o0ovvvvvvvvsr vi v ~n ~ri<vivv
zl m Q m M m r m .O N
N .y r N N m r e N m O'0 O m o O m m 1. 0o 0o N r m N m o o m e m
.n m m e
a o fem o vmi in .mv m °e ° N m ^ N N rv Q mM. a m o r m o o m m o
E n I I o o o I M m m m .n Q m m oo ° o m m o m m r e ~ Q o Q m
n m ro .c Q io n M in ~n a o o m m a o m N m e N m m a m .o e m o rv o o m o 0 0 o m m m m o m n o m m m
0 0 0000o......:o0.:000I.. .+00.+00.+00000o o 0 o orv o oo oo0 o o o o o o o~ o.: 0~ 0.+ ca
O
-I m m m rv e n m o N n o N a° o o m
C rv N N o 0 o n o 0 0 0 0 0 0 .c ~o .o w .c .o m m .u'n m
.X m m m M m rnn .Nn rrvn rmn rmn m m rv N. N m .mn rmn m m m e m °o m m a n a a a e e e o M
I O O O O o o o
O O O O O O O O O O O O O O G1 0 0 0 G O O O C C) O o D C G o 0 0 0 0 G o O o O G G O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C C) O G
u
~I
rv M o a N N o o nN m mM v N n m
N o r N .-i o81'. o ^ Q a^ e e o m o m
mr o m m r Mn rmn m m m
a a Q Q Q ~n o a m N v in m m Q e N 6 m m m N c N N N n n o n r r ~ m n m e m .o m
3 0 o 0 o o o 0 0 0 0 0 0 0 0 0 0 o 0 0 0 o 0 o o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6:6 0 0 0 0 0 0 0
o m m m r1°i ru'i m m o o m N m m o ° N come m a °m o 9 r m o ,ems m o °o °o °o ve+ m u^i `O v m m m ~c n o ~o a rc °QO m e
e N .n. m m vrvi m m m .n m m .n o S m^ ^ .c Q o o N N o 0 0 0 o m m m Z.
m m m m o u+ m m m o 0 0
o e o M e N N e o o N N rv o a m m m o m m o N N N o o o Q W Q Q Q Q Q e m a e in Q e
l0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o o o 0 0 o o 0 0 o 0 0 0 o 0 0 0 o 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
v
`I
o 0
l n Q m Q n N m r o m N . N .c Mm o o Q o0.m. m o ri m v . 't mo e . M ."'n o o N H n O1 m .m+ m
na vmi .noon emrnoN m mm.no a veM ooog rv rv N rv rv rv m rvm a mo
o rv ni n o r n ni ni o o c v v v v o v 6 e rri 6 ni v rri a rri o rri e
a a a ~ a a a a a a a a a a 9 a a a a a a~ ~-o a s a a a a a
t t t C 'C tt t t '['t 't t 't t 'C t 'C C t 2 4! 4!t 't 't t t t
I ~ .n .n > > > N N m > > > > 3 ~ o
o w v N a a a a m a a a a a a m u v N v a+ w
wl a
a EQoNO mo.+ Noo.+ NN-- NNNOn mmm.nNm~mm nm.o oo o
~ N N~Nmmmm mm m
nrvi rv m m N .m. nmi .m. N rv N N ° 0 0 0 o p o 0 0 0 o m m m m m m m m
o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c 0 0 0 0 0 o o c o o o 0 0 0 0 0 0 0 0 0 o 0 0- - o o 0 0 0 0 0 0 0 0
a o
M nl3 rooovv~°~n°ooeoeervormiac$mvwl eaavrioaoOi°v°~nnv^'ioo°Q.n..°.w+.Q..Q.M-iSggmtOmr`Onr1Onr.nr.nntOiaommmmmmmmm
W oo E o 0 o 0 o ci 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 6 0 6 6 6 6 o 0 6 0 0 o . 0 0 0 0 y 6 6 0 o . o o N
a o 0 0 0 0 0 0 0 0 0 o eo 0 0 0 0 0 0 0 e N o .e. o 0 0 82 o o o o o o 3 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a a o 0
M ° 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0° ci ° 0 0° 0 0 0 0 0 0 0 o O ° 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c c
o
X NIm m m u~ o o X o m o a n v rv$ u~ $ m a m° N o g N 3° o R 2° a m m o m m m a a o m a N a
LLI pQQ-- Mem m e rmn NQN mem em mfr o°0^ me °ooQQ nQQeQeeeeeee
vl
m N m Q r n n m .n em m ^ v+ o Q o 0 om ~n m n o Q N o o o e .n o o m o m
z emm mor.+ n o0 ooomo om m mm mrrvi eommru'noo Qm.+em o n.+ memNme
m O^ o 0 0 0 o o O r,j m v o v O O ai ni vi N n tT b e Di O rei m .y o+i o N O
I
O o .c e m m m o c e a m n n a m m o .o 0 0 0 e o 0 0 0 0 m m m o o 0 0 o o o N m m m m m m m a
NNNNNrvNrvNNNNNNNNN N N m M NrmvNNNmmmmmmmmmM N NNNNNNrvNrvN
r
f m r m o .o 0 0 0 .n n m N m m N N N e o 0 0^ .n o, m o n om
n
M o o m m m v e o N m
> n n n m o 0 o a°o m m o m 0
o o m g m m
.i m o 0 o m o Q n n rrvn o m m m
O z .6 0 I: o a o rri ° ri ai cc 0 0 0 0 o v o o° 6° 0 .n 0 e° ° v of o n m rh °m vi v m ni o ro 0
¢ N `y' rv H H rev r `m° n o r m N M r o o o N o N o o o N o N o N a o 0 o o rv o o m m o m
o m m o N o e,~ m m m n N m N e N o N N N N N m m n e N M M M M e M m m N g rv Q rv N a
a s o ,y' e o c o o N ° o a o a a S o 0 0 g o o 0 0 0 0 0 0 0 NJ 0 o oo 0 0 0 0 0 0 0 0 0 0a o 0 00 o o o o o m N a a m n d o 0 0 O O ti H H ti o
m o m m o rmn m N n m N m e N N N m Q N n O e o u, m .o a
v v o 0 0 0 o a a a o 0 0 0 0 0 0 0 0 0 o o o 0 o e
0 0 oQ 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0$ o o 0 0 o o 0 0 0 o o 0 0 o p °o 0 0 0 0 0 0$$ o p p o S oN g o 0 0 0 0 0 0'00 °o 0 0 0 o o
m m m m m m N o o N N m m m m m m m m m m N N n^ m m a m m o 'm mmm m m m m m m mim mi`v
N a a c fa 0 0 0 0 0 a i 0 0~ a a 0 0 0 O O O O O O o o o O O O Cc ea z Q c e .n > j vmi r H m H
I
O O M~ ti Q b m a .O N m a O m tO m M m n m r m rp O O r O M
~ O m 'ey Q rm+l M .1 C O o a °m V Q b~ m N .en m ip t°O Op 00 M .Nft V N N m~ m m m 0 N O R m O Q v'~i vmf O P rv vmi O N m V~ ti O V
2 ~
I a u u u U u r1 r1 a u u a a a u u U U U U U rl u rL u u u u u u u u U V V
`u uuuu °u u > > u° u° > u' v > u u u a > ° u °u °u u u u u u u° °u °u u u u u > > > > > > > > > > > > > > > > > > > > > > > > > > >
.n u u u u u u u u
a s o, a s n a a a a n a n n U a n a d a a n a
m > > > > > > a > > a > > a > > > n u > > > > > > > > > > > > > > > a a o a o a
E
e eo .n e e v+
v ~n S S m° m m ° m N m .n rn m v"'i N
vi ° o o o 0 o ° m m m m m m n n n n n n m °p m m m
.mi m m N N N N N .mi m m N ON m m .mi m .m+ .m+ .mi .mr .mi .mr .mi m m m Oi S N N O N N O o m m - - . m-r - .m-r .m+ m - - .m-i .m-i - -
z 2 z Z Z Z Z m w w > Z Z Z > z z Z Z Z Z Z Z Z Z Z Z Z z z z Z Z a rL m W~
c,,¢¢¢ p p z,, z>>°°¢ a W z z z z z z z z z z z z z z z °z z z
CI ° 0 0 0 ~ .Nr m m ,N.{ rv m o m m m o° o a o m m m m m m m m m mmmm m m m m m m m m m m m m
¢ _ z Z z z z z z z z z z z z z z z z z z
w Z Z 2 2 z Z Z Z Z Z Z 2 Z Z z Z Z Z Z z Z Z Z Z Z Z Z Z Z Z z z z z Z Z 2 z Z 2 Z z z z z z
Q Q¢ Q 6 Q Q¢¢¢¢ Q 4 Q Q<¢ 6 Q¢¢¢ Q Q Q Q Q Q Q Q¢¢¢¢¢ Q Q 6 Q Q<¢¢¢¢¢¢¢¢¢ 0 0 0¢¢¢¢¢¢¢ Q Q Q Q
a N ~ ti ~ ~ H ~ H H H ~ ~ ~ ~ H H H H H ~ H H ~ L2(q(-2N H L, H ~ H H H H 00ou ouH ~2 H uqH q..
m O N m^ r M Q N .O n e m o in m O m m O N .y m r
° p n m e o m n n e e m m m ^ e m °m m° m o a m m N .n Q .o m o Q
tslu o r-mmmm aavee no mm.n miuM mn,n N$ mmmmNm rvNNrnmim~nnnmmgmmo
~ Q I m N O. O O O O O ~/1 m m m N N N N
c ul Q a a a Q Q u+ .n .o .n m
n
O
r
~ ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 w w w w w w w w w w w w w w w
f w a d s nm. rY m d a a i m m u d a a a a i m m a m m a a m u u u u u u u u u Q u w u u u u u u
O e e e e Q Q Q Q Q a e e e e Q Q Q Q e e e ro .o ~o a s a d a m x Y Y
.
u u u u u u u u u u u u u u u u u u u J
o z eu u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u J J u u u J J n J n n
N a u v u u u U U u U U U u u u u u u u u u u u u u u u u u u u u u U U u u
' j til to o c ^ m m m c n m m o ~o o .o m c v m. m o nt c m vmi °n° m n m n, m No n m o m °'n v m m m m ~ o..-, -m rv
a o 0 o m o 0 0 o m .c o m c a c o e c a vO1i oo m a m e m m o m ri rv m
Q o 0 o m e v Q Q m M at m rri p M .-i O N rv N N of N N m N M pp eV t.l cl tt V O p m
° m o m n tnD o n n e tmO O ^ N e N 0 m Omi Omi Omt S Omi Oei N Omi Omi W O O I~ m m Q °N h O S 0 n m .°O o0 N m °m N" Oei .O vii m vet m N m
m m m m m n n n o0 e m 00
Q O O O O O O O O O O p 0 0 6 6 0 0 .i O O O O .y 0 0 0 0 0 0 D N O O O O .-i .ti O O O O O O N O O O O O O O O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
y <j, 2 y 2 y 2 y Z Z Z Y Y Y 2 2 2 Z y j z z 2 2 y 2 y y j 2 y z y 2 Z 2 Y Y Y Y Y Y Z z y z z z Y Y Y Y Y Y z Y Y Z j z j z j y z y
m
3
o a m °m m N o m n m vmi N 'm" °t v`^i tt°it ~t v1Dt m m oit N N m o m n m m m$ v e .n. m ao en .ec, ° o .nit ut m N o N m .mi en .rvn o
m m m m a io m N m N m m m ^ m N e mmm ° m
LLI Q O O O V O V Q R C O vi V V d' m N Q vi O m m O N Q N N n1 O m .y Q Q N
z
m m n n m m N o^ m N m o n n c m m n N o N m o rn m m m m N o o rv N m o
m m a e m vrvi m m N o a m m m ao m o a o ut m °m Q m m m m m m n M v v~ "I"
rv
-a E m m m o m n vt .n o n N io a .mi o m o m
o m m o m m mom m m m o o m m n e e N o v a a a e e a vni o e e e m m tc ao n rv v m a a m °m m rn m" m °
0 0 0 0 0 o 0 0 0 o 0 0 0-- o m
0 0 0 o o o o c o 0 0 0 0 0 0 0 o 0 0 0 o 0 0 0 0 0 0 0 6 6 6 6 o c o c o o
°
m m m m m m n m M N N n n n MM vl N N N m n m N N N
m m....
m m m a a c nm n vmi m u N N. N m m m m~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 O O O O o 0 0 0 0 0 0 o o 0 0 0 0 0 0 0 0 0 0 0
U
m m n m o n n m m n^^ rv vt m Nom m m moo n m m o m o N o rv o^ m o o m o rv e o e m m o
„ .o m m m m m m in m u m n m N m to m mmm o m m m o o m n m n o m o ao n .c m n m m m m ut ut .n N I m
3o do000000000oao0ocoo.-:o000.+o000000.+ .:0 0oona.+.. o..o o o o 0 o 0 o o o 0000000000
0
o m m o e" O1 m " N n NO
I.my .o o ° m
m n o o o o m n . m o o m m N 0
a o v e m mvt
0 0 0 0 0 0 0 0 0 0 0 0'0 o d o 0 0 0 0 0 0 0 6 6 0 0 0 0 0 0 0 0° 0 0 0
wi
'm a °In n m e e m 111 m o 0 o m c m m o N~ 11 11 a o 0 o m p o o m o m io o N a c o c v a v a n a v a m m o n 11 MN MI O1 °n m v~Di v N. o
m m rv m rnn . °n
o eee.rivcvv.+i .riveemvm vivori ri ri rirv mNriN ,mnoovvm
v
w ~-o w w w w w w w w w w v w w w w-o w w w w w w w w w w w
F 't t 't 't 't 't 't 't 't 't 't 't 'C 't 'C 'C t 'C 't 't 'C 'G 't t 't 4! 44 44 4 .2 .2 4 't t 'C 'C 't
o w a v a °1 y y 01 y w N a s °1 w w w w a a a v a a w w w w w w
LL .i
LLI a
.-nw Eim m m. mem m°°m mmm of m m"1m 1~.? v, n oe oe o00."'n o °n °n nio n .nno$ovmi mN n°m°mm°m °m mmm mNm"t
300000000000000..00.x+00.+ o.+.r o o o.: o o crv .:oooooocccccooooooocc
a ~
dl o 0 o n m v ti ti ti .m. .m. .m. vt ti .m. vt m .m-. r N n o .m-i vmi vmt vmt m m °m o n e°v vmi n
rv 3a o,mmm o oooom °:m v1pia v1Oi o NnN mm Ili nN
F LL E .4 .-1 N N N N N .y N V N
H w O o o m o 0 .i .°+1 N N .°vf N N m N N m m0 ° .rvy rv rv N N N m n m rv N N rv .y N in vt rv m a m° rv rv N .ey m mm n vt O m e rv N n O N .m-. emi m~ N
2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 O 0 0 0 0 0 0 0O 0 0 0 0 0 0 0 0 O O O O O O O O
M O . 0 0 0 O O O O O O O O O O 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O S S O O O° 0 0 0 0 0 0 0 0
W O O O O O O O O O O O o O o O O O O O O O. O O o o O O O O O O O o o O O O O O O o O O o o o 0 o O O O O O O O O o o O O O O O
2 °
X N a a° ~ a° N N ~ N N N ~ M a' ~ ~ a° a° a a° ~ ~ ~ ~ ~ ~ ~ ~ a° a° ae a° a a° a' ~ a' a° ~ a° a° a° a° ~ laO a- a' a= a° a° a' ae a° a° a° a° a° a° M N N ~ m a° ~ x
~e v o v c c a e e e e e e e m e n o m$ vt m m m N e n m g e o m o o~ o m N m a a m m Q a m rv N e c N
W OI
a
> m .n °m o o m m m o N g m M o No ro N Xo om m n m o o M a o o mlm m
n o .n o m N o Z n o m o v'"t m n o vi v m ° : v m .
o m m N a o e m o m N o o m m .c m u, c N o e e .n m io to
r rv N r
> z m m o n m vt o o m m o m o n m m o o ^ m n m o p e o rv o0 M .y m m m m o ry m n o n m N
m .c .c m e N e .~+t g o o m o 0o n N o n N a ° m m m m o v oo m m a n o 0 0 a, o
m o m n c n n m rv
_ .c ec o vi ai o o0 o m ai vi o nt' .c m o m° a m .ri v a o° a' of m o `-o N w of °n 1121.111w
i `o m N N r N N grv N o o m m N m m N M m N N N N m o N m N m 'e, rei rei `n n rv
N N N r
rv m m m N N N c vt m .c m m rv a m m N N N ti M N o N N m n n n n vt m m N N m N m n N N N m N
0 0 0 0 0 O O 0 0 0 O O O S D O N O O O 0 0 O O O m O 0 0 0 0 0 p O O O O O O Q O O O O NO N N O° 0 0 S O 1 0 O O O O" O 2 2
o a a a a m a m m m m m m c c M mmm a a a a a m ¢mmmm m a a¢¢ m¢ ¢N m N N m¢ ¢~m m¢
w mmmm m m m m m m m m m m m m a o c m c M c m e e e e o v v c c N rmi N N N
ti ti ti F m t= in H ti H H F H O O o of o' OO O' a i O' d MU mU mU IS o O o O O O d 2 o.0.0 O OO O O
O o 0 0 o 0 0 0 0° °o o °o °0 0 0 0 0 0 0 0 0 °o °o o °o °o o o °o °0 0 0 0 0 0 0 °o 0 o g o 0 0 0 °o 8 0 08
o
z~f f z z N f ofU
m m m m m m m¢ m m m m e M M Mm ¢Ia ° m M a M m m m a a a a N m¢ m m m'a E n aia,d N'N a a a¢ a
m m m m m m m e a ts a c M a o c a c e e c e c
H H H H H H H H H H H p. H H o U U o d U o'o 0 0'0''0 0 0 o a a d d o 0 0 o mU o 0 o mO o 0 0 0 0 o o o'd a o,0 o o o ololo
s~
= m M m m o n o m o m m° a n m c m me
n m M m 1D m m N a m io o a^ oo vni a m r o n o N a `D o vrvi oo m oo m vt in o m o m o° m
Zt- o ut a vmi °o N vt o o m m m vt a N rv m m vni e N a N o c ut v c m c N rv .°c rv
w m m m N .y N M m .-i .n e m .r .y N N m .r M rv
.c u u XO>- u u OH u u u u u u u u u u u u u u u d U a U d d u u U a d a a a a i a a o > > j > > 7 7 7 o 7 > j > > > > o > > > z > ° > > > ° > > > > > O > > > > > > >
E 11 a WIN m m n m m m m mm m
m.m . m, . y
. . -i .
> > > > l9 > o , > > y 0 0 0 0 0 o 0 o o o o a o a a>>>>>>O>¢'
a a a o a a a u>>>>> 2 2 z z z z z z z z z z z z a a a a a a a a z a a¢ a z f f 2¢¢¢¢ o¢¢¢ o a¢ a¢ z! z! o¢ a a a a a¢
c1 m mmm m m m m m m m m m mmy m m m m " i m m m m m m m m m N N m m mmm m rv N m m
- - - - - - - - - - - -
- - - - - - - - - - - -
2 z 2 2 z z z z z 2 z 2 2 2 2 2 2 2 z 2 z z z z z z z z z z z z 2 2 2 2 Z z z z z z z z z z z z z z z z z z z z z z z z z z z z z
° a a a a a a a a a a< a a a¢ a a a a a a a a a a a a a a a a a a s a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
ID 11 11 11
j p m O
v°i V N N tn0 b tm0 Q1 Ot
00~-O i O M °N
m ."'naaurvi
n
O
d
a
0
YY
o G u u u u u u u u u u u u u u u u>> E E°° 0 0 0 0 0 0 0 0 0 0 oIo 0 0 0 0. o o>>>>>> E E>>>>>>>>>>>>> >I2 2
c u u u u u u u u u u u u u u u u~ w~ w w w w w w w~ ~ w w~~ w w w w[ W w~ w~~.
NI z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z.z
I
h O m .°vl M O O m m a O~ ~n H N O 01 tD O~ ^ rv m tO m T N m
> m m N m m O N b In N m
I Q m m N N M Q m O Q M m V m m N N Q N n M N m O m n 01 N O Q Q M O N N O Q N N n ~+1 C O N O~ O
V N .V N N N lV N m N N ri N N N N N N m N !V lV N N N N .-1
a
m m nrvn nNN m in en .+rvm . eoeQM mm
❑ nNm m o N~ m NNE .°n .°n~o a o-m m ~ n 00 mm o a 00
I x ep m m m m m 00 n m ^ I m 0. m m 1O m 0 m N v1 00 m m m m n m m m m m N m
'p 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 4 C O a 0 0 0 0 G 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 .i 0
a
d
3 r O r O O r O O r r O r r O r r O r O O r r r r O W W N r O r r r 0 0 r O r 0 O O d d 0 0 r d O O r O r r
Y QI y y Z} Y Z Z Y Z Y Z Y Y Z Y Y Z Y Y Z Y Z Z Y Y Y Y Z Y Y Y Y Z Y> Y Z Y Z Y Z> Z Y Z Z Y Y Z Z Y Y Y Z Z Y Z Y Y
m
3
0 9 m of N n N m m o .y N Q b m m M t0 N M N O n °O n N M m M M m m m
y a is m o No m v rm+ m v m m
LL m m .n a is M m m n n .c vtOi n uni m o m m ? .o m
-I E N M m ni .c ~ m o m ri o rv
ZI vl n m n -tO .O m ut M .y~'+ ~ n ZO O ~O ~n N t0 N ~O m ~O m No n O N ~ O~ ~O O~ N M Q ~n
m amm v m o in m o n a n n n o o N N N m m rm N ^ o m m I- m O a m ~n o m o o m n o v~
n N n v It m m .n a 1 m n ~ m vmn. oo a uO1i 3 mm .°c n .mn m °n vei vmi rv m m umi ~ N m m .n °n r°rv vmi a v~ °m ~ a n m umi ° o a °v, m umi
. Q - m m umi Q Q Q ll~ o o 0 0 0 0 0 0 0 0 0 0 o 0 0 o 0 0 0 0 0 0 0 0 0 o 0 0 0 6 off.: o 0 0 0 0 0 0 o o 0 0 o 0 0 0 0 o o o 0 0 0 0 o 0
of
M e rv o o N
m o o N a M nw N Mm n N m m m M m iD n O N I a m m N N . a a mm
N I I° N N$... .NNNN N
un vn o e m m m m c m o a N 6 N m m m a m
G C o 0 0 0 0 0 G C O 0 a 0 0 C O 0 0 0 C C O 0 0 0 0 0 0 0 a 0 a 0 0 0 0 0 0 0 0 0 a C G O a a o 0 0 0 0 0 0 C 0 0 G
u`
I 'I Q
0°0 ONi 0e0 0. 0. O°. lOO n n n t°O m m .O m m m m^ m v O m c° tm0 n oe0 n N Q W m . . vn. vni N W n m 0 b .n n m em m m tD 00
v y o o 0 0 o 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 o 0 0 o o 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 ❑ _
o n I
0 0 0 m 001~ O . . m .en a vvi + v. .n ° °a N M
o 0 0 0 0 0 0 0 0 0 0 o 0 o 0 0 0 0 o 0 0 0 0 o rv o 0 0 o o a o 0 0 0 0 0 0 0 o d o0 0 0 0 oo o o 0 0
v
'I
mmuD co Nmnm mme No M~ mQ mmNmNgervoaoQ rmm'9 memo noon
M .o n e e m c a m N a rv o a m m o o m e e .a e
R$ M n n
P
W N N N N M M N N N N N N N of N N r1 N N N N N N N N N N N m N
VO r N eV N N eV N m N N N rl vt M .-1 N N M eV .V N N .i /J eV N N m N M
>
w w w w w w w w w w w
w w w w w w w w w w w w w w v w w "w
't 't 'C 't 't •t •t •t 'C 'C t •t •t 'C 'C 'C 'C t 't •t 'C 'C •t •t 'C 'C •t •t 'C C •C 'C 'C 't 't 't 't 'C `C 'C 'C 't 't t •t 'C 'C 2,2 't t 'C 'C 4C t t t
I O vOi vOi O O O ~ ~ vOi ~ H vOi O H H H H H to N N .n vOi .n ~ .On .i0i ~
o w a w m N w a v w N a v a N v a a r w a a s a °1 a w w w w
LLI a
n
~ E o o m ~ o HO e ^ ° m n n Qn v a a 3 o 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 o o 0 0 0 0 o 0 0 0 0 .6 o6 0 0 0 0 0 0 0 0 0 0 0 0 0 0
d a
N o m m N N M N N N N N
I~Im m m e o o o v
m o w N m o Q e Q m m Q m e e m m N N m m m e N m e N
a+ m ao m m m m m m m v, v N e e m m m o m m n .o uni .c Q e m N
~a 3 e Q a+ o m
W m
Lo Em .n
woMrv N.+Nmo.+m Y.~o rv .°v omrvo0 N, m.m....o0
o 0 0 o 0 0 8 o o 0 ° o o o 0 0 0 0 0 o o 0 0 o 0 0 o 0 o 0 o 0 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O o 0 0 0 o 0 0 0 0 0 0
M O a o o O o a O o o o o a o o O o O O O o o n o o o o O o O o o o O o O O O o o O O o O O O O O o O O o O O o a
o
x a rv A m A m N~ 9 9 9 4 4 4 M o X a° m 4, °o~ r~ 2° 2° u2° X X~ X 7~4~4~4 v
rvm.n .n m e o Q ~mn m M m .o a vni
W
I O ^ N O o mQ oo O e e
mn ut m n 010 N n N m m m o o m O m N m N M O O m O
> 0
O 0 m m n O m O vt tp
z Q
N Q .0 m .y Q 0 00 n 0 O O n 0 0 . O O O m 00 O o
0 tG N 0 0 O O Q Q O O O O ci m V~ O CO O .i O n n tU tC O v ' O T O O Q 0
e o o Q
p N .v o a a e a o c c umi v+ e a o 0 0 0 o Q v, 0 0 0 .c o 0 0 o Q a vi o Q a o .n Q e a o o e O o e o ~ 0
r
.mi n o m N n m n m m m o n M m n. n o n .o m °m e rv
> m n n m o o e o 00 0 o 00 00 0 0 v"'i .n rv a G - v. ~ , n o m o m. 0 0 0 0 o m
eV O Oi n O ° tG ° N 0 0 o Qj O O O O O N
N z 6 6 o o o + vi
o o O o 0 0 0 Ul 0 0
0 0 0
l rv rv H rv n r n rv rv N o Q o N o o0 0 0 0 0 m 0 0 v+ .n N .n N N N N M v+,N o N,o~NIN o N o e o 0
o °m o o rv o o n m .`rn o 0 0 N-i o o° o .m. m m o 1DO oN. o o v Qo o m N n N Q N° n' a iO o o 0 0 o Qo $ o o° o o v
° o o 0
0 0 0 0 0 0 0 0 0 o o 0 o olio ° o °o 0 0. o° o o o o 0 0 o g a o 0 0 0 0 0 0 0 0 0 0 0 0
o N z z °z z z z °z z N z z f Z~ z Z. Z
zla a m n m m m a a m¢ ma m n m m m a N m m a a N N m m m m~ a a a m m m m a a a~~ a a~~~ a~~ a a
❑ rv N N N a N N N rv i° `O .c 1O n .n .n 0 .n 0 m
w00a dOi n000000000c a0-00a i000000000d000000
o N o m m o N M m e r+ m m n o N N .v e e o
moo N o m n n e m ~~m m o mm
o.0 0 0 0 o o o Io O o 0 o v Q o 0 oi, NQ a e ° n° g o 0 0 o g o o
o to 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0~ a o ~0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 °
z~, z z °z z z z z z z z z z ~.N~ f z N z z z
N mm~maa~;~mm aaam.ane.~aoa
~IH<mmNmmmaNmm~~~m mmm maa nm~~~
z N N N a m N rv rv N N o n .c mN n m m m e m m m
~a a0d00000a00000000
vas", 0.0d aia d~0~'0u d00o0000002 i00or
'
°e m vni .mc °n° m .n. °n N m N m m N N^ N .Qn vQi v m `°e i w n o m vQi m N .c Q N .n o rv °o a q N A v `QMV ^ ,°,m~ e
Z
a a u u u u u um u u u u u u u u d u u a u a o. s d s d d a n a °
u° u u u
`w u u z z 6 a u u° 6 °u °u u ° u u u u u u u uu u uuuu u u u° u u u u°° u u u
> > > j > > > > d > > > > o > > o > > o o > > > o > > > > > > > > > > > > > > > > > S > > > > > > > > >
E
9 m m m m m m m m m m mn m o m ao m m m m~ m m m^^ e^ M M M^~ e Q M~ n N n m m n m m m m
mi m. .m. m. °m' .m. ,m, .m. .m. .m.
U' l7 l7 l7 Z z 2 2 a 2 2 l7 Z a U` O V' l7 G O O l7 O l7 U' t7 l7 V' U' Q Q Q Q Q G<< 6 Q Q¢ G 6 4° 6 4 0 0 0 Q a a a a a
C > > > > uwi w 7 7 7 7 > > > > > > > > >
- a a a a ^ a a a a a o a a a a a a a a a¢ f f
m m m m m m m m m m m m m m m m m m m
CI m m .r N Q Q Q Q m o .-i m m m rv m. m m m m m m m m
N N N rv N N rv rv NNNN N N N N m N .a
v
Z z z Z Z Z Z Z z Z Z Z Z Z Z Z Z z 2 2 2 Z Z 2 2 Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z 2 Z Z Z Z 2 2 Z Z Z 2
a¢¢ a a a z z a a a a z a a a a a a a a a s a a a a a a a¢ a a a a a a a a a a a a a a a a a a a a a a a -0000
O ~ 0. ~ N N N
w .c n m M Q m m Q m n N n m m^ .n m n m M .c n m o Qo o m m m N Nmo vmi m o 0 o m N m~ in m n n N
F ❑I N m in N N E m N m m~~ .QC m m~ ,nei e a~ a a s .men ~mel a a v ren m rv'i e N m o 0 0 0 0 .v'+ e e v`"i m m m m m ren .°n em e m m .°n °
c
~ e e u, yr N .c .o e N .n m 0 N o N m 0 u, m e yr .n .c .0 0 .n .n
n
p ❑ ❑ ° ❑ ❑ ° O o ❑ ❑ 0 ° ❑ ❑ ❑ ❑ ❑ o ❑ ❑ ❑ o ❑ ❑ ❑ ° ❑ o
O O o 0 0 0 0 0 0 o o 0 0 0 o o 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
o Ci Y Y Y' Y Y Y Y Y Y~~ Y Y Y Y Y Y Y° Y Y Y'° 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
3 " ' 212 21212 x x x x x x x x x x x x x x x x x x x x x x x x x x x x
o _ ~ r m m~ . m m. r- m 0 D D D D n D D D > r > r m DID >r >i >m
w~wrww~~~w~~~~w~ wwwww`' ~ >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
N o z z z z z Z z z z z z z z z z z z z z z z z z z z z z z z z zIM
~I °o o 0 o m iN m m o o o m m o o m m m o e m om m
> 0 6 00 00 0 o m m n ao 0 0 0 0o m m 0 0 o n ~c n ao o a ao o m m m e m m oo vmi m w. ~a w n n
~O Q Q C ~G O w Vi R tG o e e R vt vJ m v1 w b Q Q O O V< YI Q O w ut a) O Q O V let C Q Q of N rv O O C O m 0 0 M Q M O m
v
a
J-01E. N °rv e 0 0Iq " " w m m m I~ n rv ~c v vi o e e o rv m a. o c m vi ac vi o v e c m vi ai m vi o v w n 6 od ou ~ I: ~ au r ° n oo ti v; w vl N m m w w ~a m m ~ m in ^ N N w N m m~ .y n rv rv m e e o m m m m e m m o, o o m m m ~n m N v ~c N
E m m m N m o m ~o n ~ m o 0 o rv o o ~ a~ m o N o n e n m
m m vei N o ^ o 0 o N N N m m^ m N N m N o o m n o N m o 0 o N N m a N v`"i v^i o e `V m
o z' m oo m m m m m n o m m n n m ao m m .n n m o in m ~n a e u, o a e
I 0 0 n 0 m e
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .-i 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
~I
p
_I m N N O e m m 0 m ul m ^N, N tO~f m m n O N m b m N m N m N rv p m m m .mi N a °m a N a
m N n ti m O~ N m m O~ O~ op O O m T O O~ O N O O~ m O rv N 0~ 00 ~O
O e-i H O 'i O ri O 0 0 0 O O O N ~-i 0 0 .i O O .y .y
c; n o O C) O. i O O O ti
u
` vt O of ut O ut ul O O O O ul m 0 ut O O O m v1 O O ~ h v1 N ut ut ~ m m N m N ut ~
W u6 h N n O n h n O n n N n r n N O O O O n N N h O N O O O m N O O N
O N N
4 .4
p
O ul N n e m ul N ~D N N N m n m m m n N n O N M ~-1 O O m N N O ti N m m n m N e
o ~n e o m m N o o e o n ao o n o m o n o rv n o m o o m a ti o e m o a n in o m o M o
P O N .i N .y N O N O O ti
I
o m m o o m m e m m m m m m m o o m m^ m m o o N m m
m o m m m m N m o m e m m m m m m n
'o n m m o o m m o o m m m n m o 0 o m m ao 0 0 m n n m v e m m
o m m a m I m ~
e a v v 6 a 6 116 vi d vi vi o v o o vi ~c vi vi .n ~ri v; vi u; e a v e a a vi v e vi au o o m o n m v v v m v m v m o m v o v v ~.i o v r.i v ryi v m
y a a a a a a'a a a~ a a a a a a a a a a a a a a o' a a a a a a a a a a a a a a a a a a a a
n a m u m °'IN w a w m w w m w i w w w u u" m w m u w m w d a m m a m m m u m a w
p b N N W W d a y y a y` y y y y N W
wl a
d m
n m o w M m" rv rv m em+f 'm+f m o o r o o .y o N n m o m m umi umi umi vmi umi h
A EI M o N n ~ 'r+f
m o m
m a m m m m o B o v a .a ~ o .n e e m m m ~o ~o w
Y 3 o m vi c o e o v d v o o v; v o v v e v o e o v c v vi o v o v o v v o vi o v o .-i v o o vi vi vi
A a
3
LL a o 0 o m o n m m m o v' N o m m m. `a N m m m m o o e e o 0 o m m
a e e e m a o o o a a N e e e e m m m o m m m
m o o n m m vmi m m m o o o 0 0 o o
-IEm ,^i aid oim ai ci aio ai of ai ai ai aim poi ai ai aim Maoio~moimmniaai a~.iD. .iD.
M 0
N 0 0 vl ul N
N ON .Ni O ON O M N .mi .n-i N O m N rv of O .-1 N^ m m o N O + N O O N O O O N Oia ut m m O ml N O m O
a N O O O ry
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ti O O O O O
0 O O rv 0 0 0 0 0 0 0 0
O o 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 °o °0 0 0 0 °o 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0
o c o 0 0 0 ~~0°° 0 ~ 0° 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0°° 0 0 0 0 0 0 3 0~ 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0
. o
91 N o 0 0 0 0 2 0. 0 0 0 0 0 o m O O O O O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 O O o o 0 0 0 0 0 m o
t o n~~ e °,y m n ~ n m~ n v vi n n o ~a n n o n e vmi ~ m N n n e$ w vmi ~ ut rv ~O ~ v°i o e e vmi m e
ut iD ut ~D of
W m N o m a m N m m n e o m n m u e m o n rv^ e rv m e m ti° n rv
z m a in m o rv o m o rv. o
m ao m o e n rv o n m o m o w rv e m n n m o m w o N v+ o a a a ~n ee o 0 0 0 0 0 0 0 0 0
0. ai . N rv w° O M ri cc ° N rV O m N° m vl 6 O M OG !h tG O n o° 6 V V O i ° 0 0 ep m 00 0 o O O O o o O O o 0
D u+ N umi o rv o m N m o o m N o e N N N N N e m
> n N r N rv N N rmi rv rv rv rv rv rv N rv N rv rv rv rv rv rv N
^ Ni
z m o N N a m o m m rv N e rv a m m m m o n rv m m m e N m el o oa'm m m
_I m a o m o e e m O e m m o rv n m o is o m rv m m o o is m m o 0 0 e l m rv o 0 o c o 0 0 0 0
o 00 °00 00000
.°n M M M o a vmi vrvi ~°o N v'^i M o rv e°n m o m m a v v v goo ~o .mn ~c °m m v o v o m ea o °a o o,6 °J °N° ervn o o .mn o °0 0 0 0 0 0
o rv rv rv m oe a° o a M o o rei o o Lei v o m m oo m m o o
l o ti° 0 1D o rvo ° m a o eo m o m eo m o o a o e° 0 0 0 d o v~ ~a m m
0 o 0 0 0 0 0 0 O 0° 0 0 0 °0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 °0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 o
Z N ti 2 o Z 2 Z Z 2 z z Z z z z
loD m m m m m m m m m m rv rv m a a m m m m m aw m m a a m m m m a a a a N m m m m m a m a N N a a N a
m
w m umi e a a~ m m~ m m ~n n a y ~ n .n e a a vmi m~~ m m m ~
2 2 2 ,
a-aaua iaaaaaaacrd
aaaa acrud aOOa aa~a a~uaaacrl a' a-a aaao
m N rv N m e n m a rv N m rv o m m m w o n ~n o m e m o n m m N m m
0 0 0 0 0 0 0 0 °o oo 0 o 0 0 00 0 0 00 0 0 0 0 0 0 0 0 o e e °0 0 0 0 0 0 °0 0 0 e o 0 o eo o °o o °o °o 0 0 °0 0 o rv l0 a n
0 0 0 0 0 888
zl~ f z f f N °o f z z f z z z z z z z
rv m
~mvaiuaivai~~~~nvai~~vmiaa.mnvmia~eee~~~mn¢aa~~~~`a`amm~~nvvaivmivmi ~mmvai~vemvmi~~uaivaivaivai~~aivaivaivai
Naaoad aadaooaaaa dada aaaaaaaadaooaaaaaaaaaaaaooa
V-1
s o m a v+ m e o w e n rv N m e m w o m m m n n n m e e
r o vmi o m o m e g o o~ o rv n rv o n e a m m o is n m o o rv n° ~a m m m
m °m m r e
l7 n m N v n n a m is rv m oo a in ~D C n `C v .y N a m
w ui ti rv m N .y m N N .r .y .v N rv m N N m m .r
z
e u u u u u u u u u uw u u u u u u u u u lu u u u u u u u u u u u u u u u u u u u u u u a j u u u o u
¢ z v u u v u u V u V u u
m m m
m s a m¢ z m m o- z z z z m m o m m> > z m m a z m o>
m m
E a
i m m m m m m w+an, m m m m m m m m m m m a~ m m o° o, mmm m m m n m m m m mmm m m m m
mm -----mmmmm
a a a a a a a' 'a a' a s 'a 'a Q a a a< 'a a s >a 'a a a a a a a a a a a m 'a 'a 'a 'a a a a a a a a a a a a G G a a a 'a a a a a a a a a a
cl I a Om nrv e erv rv e~ in e N N ° n o n n m ° rv n n m ° nrv n o
~ rv rv rv rv rv rv rv rv N rv rv rv rv rv rv rv rv rv rv rv N N N rv rv rv rv rv rv rv rv rv rv rv rv rv rv rv .-i .-i rv m rv rv rv rv m° rv m
o a
w Z Z 2 2 2 Z Z Z Z Z Z Z Z Z Z Z Z Z 2 2 2 2 2 2 Z 2 Z Z Z Z Z Z Z Z Z 2 Z Z Z z Z Z Z 2 Z 2 2 Z Z Z Z Z Z Z Z Z Z 2 Z Z z z z z z
a a¢ a s a s a a a a a a a a a s a a a a a s a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
11 N N c~ 0 0
N O c~ N to ca ca ca to N N ca N to N e, to c~ ca
~9 ~9 ~9
~ll~
p
_I
w m m m m o n o rv n 0 0 0 0 ,°y n m .m. .mn M~~ vmi ~ m~ .n+ °e a m •m" vo+ m rmi m o m N m m e m n m m o rv m~ m
a, o ti o rv v' m m N o e ti m °e m c m m m a v e e v e
F tO n n m m n m m m oe n o m m m m m m e m m e e e o is ~c
a
0
0 a a a a n n i i a a i d i n a n d u n n a a a i i i a i n d n a a a a a a a i i i aid a n a a a a n i a n n n a a a n n n a i a a
o~ x x x x x >r Y Y Y w uxi uyi uY+ w w x w x x x x x x Y x W Y W w x x w w x x Y x W l W Y Y x Y x x x x x x
c w w w w w w w w w w w w w w w w w w w w w w Iw w w w w w w w w w w w
u G~¢ s¢ z w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w w W w w~ w w w w w w w w w w w w w w w w w w wwlw w.w w w
u u u u u u u u u u u u u u u u u u u u u u'u u u u u u u u u u u u u u u u u u u u'I wlu u u u u u u u u u u u u uulu,u u u
G O w w w w w w w w w w mm llw w w w w w w w w w w w w w wiw w
N m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m m a]
v N n mm, o 0
`I m e m b v1 a+ o m b b m n m a+ ti e e b M m e b m N .-i m N I..-zo b b e e
rl: p N N o O a
zz > z00Q z M O z z i z i> i i
m
wl l a m r N O ^ b N e b m 0 m m o m m n Q m e rv p1 m m N N M m V1 N e N N N a N
m 6 m O m V! n r m n .y 00 n m N O1 O 00 T O1 M O1 m N N Q b Of n m V M b °mi v1 N N
LL o E o0 co 00 00 o v1 ri v rv ou l o e m m v< e m m y ni 1c o e e m oo e m
o 0 o b N° v1 m N m m n N
m a+ m m Q. o °f
°1 m O O rv o b m e o O n m n rv o n o n n N
P m O S m m N N m rv a o n b rni °N uni m rv b N N mmm n o m rv 1n w o m b m o N N
Om °m `"~Qn ° ",b„ N oo ~nb m mmm bmnm NNn Nmo~m~
0 2 n e w 6 m n r lp t0 00 .y o m O1 Q m 0 r m o m n m m r m e m m m n v1 0 .y e o O1 n
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 o o o ri o o 0 0 0 0 0 0 0 0 0 0 0 0 0 o v o o N o 0 0
~I
-I M m m of O b N m O1 m O. O O b m A Ii Q e b Q m O m m N om O O Q O N O O o^ O
m o o n oo n v rv M m m m m m rv r^i r^i M m m m °m n m a+ m m m m ~o n v e a a e e e a °n m e e
.-i o 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 a 0 o 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 o c o 0
u`
I 1
°i rv rv rv o rv rv b o e m o .n m
°1 n n o °o, o n n n n m m o o .N-I .-i m m r~ m N n m m ao m ~c o N m m e v"'i v o v n e e vni v~'i °rv o vni M n m a
oooo6oooooaoooo 0
o fiooooo
~ 000000oooooNOOOOo
M a o n n ^ n n m v°o 1°0
p o 0 o a m o o m rn n m m rn m c m .m. m m o O1 o ~o Q m n b vi a in a ~n a Q o m v
PI 4 O o C rv o 0 o 0 a 0 0 o 0 0 0 0 0 0 0 o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O G o 0 0 0 0 0 0 0 0 o C C O 0 0 0
N b b m n V1 m N N n m n o N Q n m O n rv b .y o n n n 0 ^ O i 0 W
N b r a m, N I Q
1n N o Op
t0 b m Q VI N 1/1 bme obo n
N Q~ O
1c m o O e O m r r 0 f0 00 0 0 of 111 11; 00i a ui 4 o u1 o i~s v m Q v N m < b N of m m m Q
° 'a e e v v 1n ri c v v 1c m rri v .ri v ri N M N ~+i v m oo c
a a a a a~~ a a a a~ a a a~ a a v a a a a m rv a o+ a a a a ~ a a ~ u w w m w m w w w v w m ~
c w N y v y a N y y y y d y y a d u u u u u u u u u w u u u u u u u u u u u
F _ _ _ _ _ _ _ _ _ _ _ « _ _ _ _ C `t 't t 't 't 't 't 't t t - - - a t 't 'C 't
't c 4! c c c
Ow w,
o a v v v w a w v v y d N , a s w w w a w u N v v w w N 01 w w °i a N
a` a` a
"I a
- E N m o n b m rv Q Q rv e m m .y rv N m N r Q rv m n 00 n m m N
Pi
e b b IR
I m e N N N m Op CO t0 i0 t0 M N N N rv N N N N 1° N N n m m m m rv 1~+1
IIR
00000000.+ rio.m, .;o00 rv 00.N;o000
Y 3'^Q°° 1^ a•" .4 0
v °
3
a o m o 0 o 0 o n n n n b b n o e a m m rv m N vO1i v°1i O1 n 1n b b N n N b
m a e rv a+8
a o a e e Q Q Q v v m rv rv ci a Q a v a n e n r w n vm. . . n o0 0o e a f0 v1 1. n N i° rv b
- E,N. of of oim maim NoooooooooN rciorv rvoooooMOOOOOrrioommo
0
F
w n m m n n m v1 m m~ o o m~ N rv m m m m m Q N ~ m n o .n m Q Q Q N e v1 .n o'o m m m m u1 ao n
m o 0 0 o e e o e a e in b m N a m m m oo a o 0
N o o °o, o °o, o 0 0 0 0 0 8 S °o °o °0 8 8 S o S o o °o 0 0 °0 0 8 0 °o 0 0 o S o° S S o S 8 8 0 0 °o °0 0 0 °o 0
0 0 0 0 0 y 0 0 0 0 0 0 0 0 0 0 0 o c o c o 0 0 0 0 0 0 0 0 0 0 a o 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0
W p °m o 0 0 0 o b o o o 0 o N m ti 2° 3° d~ 2° e a 3° 2~ 2: 2~ A° 2° 2: 2° 2° 3° d~ A~° 0 2° 2° 3° N 2° n 2° X X 2° X 2: 2° 2° 3F
N o 0 0 0 0 o b o S o 0 01° 0 0 0^ b^° O1 r rei r°n rNn rv M m r a vQ1 u1 a ~c r rv vmi up1i a v1Oi .n Qe .n a .n N m a tO e e mrv `~1 m
X pi N~~ o N~~ 0 2: 2° 2: ~ m N~~ m m e n n m m m~ m m N ,ao o~ N rv M m m rv N n~~ m a m m m 2: 2: 3° ~ 2° 2° 3° 3; m 2F
^ e m e b v m o Q a rv e m Q °Q e
rv ° m
W > m v1 v1 b rv m b N ~ b ~ ~ o rv ~ o m b ~ N N .a .r ~ ~ vmi ° v°ii vmi ~ m Q b ^ °
o o n m e m N m rv e e o rv
Z o o b o 0 0 0 0 0 n o. . 0 0 ~n o 0 0 0 o m m o m n 0 O OV N of ri of p o o o m 1n N N b tD.N rv rO1i m m m rv rv rv rv N n n b N o N o 0 o n o n vbi rv b N
rv 0 0 0 0 o m rv w 1. Q o O ~ N m rv N m b m N N~ o b N m rv 0 rv n ~ N N N N rv N rv rviN
>
? m
IO m
m O O n vi O O
. 0 0 0 0 0 n m m m b Q o n ~D 1D 1Nif 0 O NV rv O Q O O O O O 0 of 0 m Of O i
o 0 a 0 0 0 0 o 0 0 0 o v v 1c o rl: vi o w n a °i n ao 1c m o 0 o N oo 0 0 o m Q v m 0 0 0 0 ,.,7 N'o's
0 1n o 0 0 0 o fo 0 0 0 0 o m m fo b b m m m fNm m n N fo 6 o o r o
n o m rmi 1c e a o N b
wQrv N NNNNNNNNN~ ~~NNN N~~~~~~rv NN N N ~NIN~~ N ~I~
e o1
Q o 0 o m o° vO1i o o< ,v n N^ v1 m N n N~ e b N e° mfr; o.M N o r b rv N m n m m u1 N rv m m m°.Q ao lm o ~ ry ry.v1 b ~QO ,rv QN
2 2
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 . IOO °o 0 0 0 0 IN 0 0 oz
z z N z N N I~~2 2 Y z 2 z z 2 z ¢n m^ m m o a
m m m N mv,
w o 0 n 0 0 0 0 0 0 O 0 0 0 0 0 0 0 0 0 0 0 O10 O o 0 o 0 0 0 o'MU'd ila ol0'03 o u p 0 cr
m 1D Q b', o b n m m m m O m n
o Qo m rn o o rv Q rv M e v1 m r n Q n Q,1 rO1i r°fi rv 1D rv N . 0
O O O O O Q N 0 0 m N ~ O O O N 0 0 O N Q
p 0 0 0 0 0 0 0 0 p° O Np 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O
f N N z z z z z 2 2 2 2 2 2
z z 5 z .Zi N n .z, z. 2 z z 2 2 2 2 2 2 2
f f f f
2 2
C H b b ta0 ta° la0 a n n fail uai val ta0 a m m m m m m m m r m am oa0 m a w omO m m am0 m m m m m a n m m W yai yai ✓af m e m m N m YNa1 m m m
a n r r r m m mm m r r r m Vt m m m N 4!I
N O a
2 2 a a a c o a a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a a a a c1 O a 0 c 0 o'ct a a d ct 0
r
I
= b e b n o b rv m b n m o o o b n n m m n o m m om o mm
ti' m r~ e m ,b,1 .y 8 vmi ^ ,tO,1 v m m y m o N ry a .N~ 1D ° v e° o N a a a n rv o vQ1 N viDi o 0 0 a .bn o N ^e N i° m m n
Z :n rv
u u u U u u u u u u u 0~0 u u u uuu u u u u u « z w u u u u u U 0 u Ei O O w 0 y y 0>>>>> O>>>> 0 0>> O o>
E
a m m ^ m m m m m rn m m u1 b b b ~n v1 v1 u1 m m 1n v1 u1 u1 n ^ ,n n n .n ~ wm
S°°'1 o °o °0 0 o S m m o S °0 0 o m m m m °mmm` m m m
r r Y Y> r ti r>> r r r> z z z z z Z Z Z Z m C7 l7
a a a a a a a a p a 'a 'a a a a a a a a a , , , ? ; J. > > V'> >V' a' a > > a > > > W m > ? > > > > ? > ? w > ? > > > z
2 2 2 2 f f z 2 2 2 2<2 2 f~ 2 2 2 a a w a a a a f f a a a w a ° a a s
'CI n e e Q Q .a r o n .i m m m mmm m m m m om 0 0 o b o m v1 .n o o ~n
z Z Z Z Z• Z I Z z z z z z z z z z z z z z z z z Z z Z z z z z z z z z z z z z z z z z z z z z z Z z z z z z z z z z z z z z z z z z
a a!a a s <1<1 a s a a a a a a a a a a a a a a a a a a s a a a a a a a a a a a a a a< a a a a a a a a a a a a a a a a a a a a a
U' U' 0 0 0 l7 V' l7 l7 l7 l7 0 0 l7 U' U' 0 l7 0 C7 (.7 U' l7 l7 U' C7 U' 17 V' U' C7 C7 U' 0 0 U' (7 U' l7 l7 U' (.7 (7 l7 l7 l7 U' V' l7 17 U' U' U' (.7 l7 l7 U' C7 C7 C7 U' U' U' (7
0
wlm m o b r m m 0 m m m b rv m N .n N n m m^ o m o m e b ~ N N m N
N N O O O r op W~ O O O b m N N m o0 a0 m m O N N m O1 Q1 °1 m N M O1 O1
~ e Q R R M M M M te+1 O N N Q1 A m at T O1 N Q1 Q1 °i Q1 O1 b tip b m m b O1 °1 °1 O1 O1 m~ O n T rv T< tD 1p b b V Q
~ F~ m b b N b t0 m b b m m N b m m m
w
6
TIM
J
I i i a i i d a a i a i a a n i d a a a a n a a a n a i a n n a n a a a a n n n n n a i i a a a a
Y Y Y Y Y Y Y Y
GF
w w w w w
Y w W W w w w w w W W W W W W w w w w w w W W W W W W W W w w w w w Y Y Y Y W w w w w w w w w W E3 F, C E; 2 F, p iFa' 2F' F, K 8 K 3 ci
~~wWu u u u u u uu u~~u u u u uuQ e u u u u u u u u u u u u u u u
mmim m m m m m m mlm m m mm w u u u u u u u u u u u u u u u u u
a
m .ni m e N m rv o m mom m rv m o m m m o m m m, ~o o o o e n n
m a n m m m m m m n n n n r m io a ~o m ~o m e m e o io ~o ~o m m m M m m m m o+ om m a+ a+ 4 4 m e m m
N ~o N N . N m m
O O O N N N N N M M M N fV N N M m m m m m M M 0 0 0 0 0 0 m LA Q Q O Q O 0 0
N N N N N N N N N N N N M M M m
>I
9
Q
~o m m m n N o N m m n N m m N N m N m n n n n o 0 o m N m N N N m N m N m N N m m
aNci c;6 ~ oo.. mm oar o... m o m m m..cmmmicec~c io
o o c o 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 m m m o 0 0 0 0 0 0 0 0 0 0 0
al
a W W o N o N o o o d o o o o o o d ~n in ~n in ~n N O W d o o d W W N N W d N N N N d d d d d d d
3 a> Y Y Z Y Z Y i Y Z Z Y 2 j j y Z Z Y 2 y Z Z Z y Y Y Y Y Y z y y Y Y Y Z Y Y Z Z Y} Y> Y Y Y> Y Y Y Y> } z y Y Y Y>>>>
m
a o m m N ^ Nm m r N m m e v+ m N o m m m m m m m .n o v n
_i 3~ m a m m m m N m ~u m m rv : ^ m
m m m o0 0o m n N n m o
m m mm .9 m n a s m m oo a a o v oo ~c a n -+17119 m m o co
o6
3 o Eoo6o-~ NooN ..00000000o00. x-+00.:0000.+.+ovv vo vcv<vviv v~ uia
M N N N N m o m„ .n
rv oo m m o m rv N o m N a n m a w l o m I m rv m m rv m m m m m m m n o 0 0 0 o a
.a E n a a ~n o 0o n in e m eo m a m m o'o m o N n N m o 0 0 0 o N rv N
m m N o a a M o m o N m m rv m r m m o n I N n ^ m m n + o o m m m m m m
~o ao m
'o Z n ~n ~c a n n m m .c in .n o 0 o m ao 0 0 o n n v"i o r n n oo 1. a n m n 1 m o ao m m ao ao m m m in o m
0 0 0 0ocooooo.+oo-oo o...: a o o0 0.+0 o 0 o0 o o o oo.+r.i o oo.-+ oorv o o o~ o 0 0 0 o 0000000
`I
tm N m m r m m O N N .y N m rv n .y o m m N m v1 N N N N N m m m r m m m m o Y1 m
°I N o N N o c m m
M V O 0 0 0 M m M O O O m Q Q P ~ml m N Q V V .n O Q a C 0 0 0 V V V N N N N N O O O O O O O O O O N m o O
1 ~ o 0 0 o. 0 0 .i .4 O .i
~ O O O O O O O O O O O O O O O O O O O O O O O o 0 0 o 0 0 0 0 0 o 0 0 O o 0 o. O O
C
U
N m
L vl m .y m Q N M m O N N m m m .--i m n m i m tn0 N w, 6 6 N N N rv M 0 0 0 O N O v°1 n v°f v°i
m o v ~n m e v e m N o o o 0 o o 0 m 0 0 N 0 m 0 m 0 0 c m 0 m 0 m m m m s c c. rv
3 w° o 0 0 0 0 66 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
°
N m m ~n..
n m N N o, ~rv m rv c o a, o r N rv rv a m rv m m ° ° " umi ~°n ° m ° N ~ °m N rmi rv .N. `v `r m .mn m m o 0 o v+ o m
m m ao m a o 0 o a s e . oo o m ~o n ~o o m o v o e o o
O 0 o C o 0 0 o O O o 0 c; 0 0 o O o O O o o O O O O .i o o o o -N+ a 0 ci 0 0 - O N
c
N o n n v~ o m m m v m m m t° o o m m
m N m a N m m
H n r n o a M in m m n n o+ m m m m e m e o w m a+
v e m m m m n m o o m m m m m n a+ m m m o a n m m
o w m o o rv v m .+i Lc m N o in vi o 0 o ui v o e
rv N rv rv rv N rv rv N N rv
>
a a a a a a a a ~ v~ v a v v v a v ~ -o v v ~ ~ v a a o v a v -o c
o.~ a a a a a a a a a a a a a H v a a a a H " d a a N N H H a H H H H w w v v N$ w
'C 'C 't 't 't 't 'C :'C 't t t't 't 't 'C 't 't 't 't 'C 't 'C ~ _ _ _ _ _ _ _ _ _ _ _ ~ •C a ~ ~ _ _ _ _ ~ •t -
> N N` .ioi N N~ H o N N~ ~ N N o N~ ~ N N M
o a w w w w N . a i w °1 a N a i N a w m a a w w N w d w w a v v a d m en m w w m
- a d a` a LL i a`
~I
m m .n o, o rv .n v+ M mmm o m w m m m m r o m m o m rv o m- m m~ m m-i ai m m m 0 0 m o m N o 0
o 0 o m .v N rv o m v v o e v m m m o m , m m gym, m oo m m o m ~c
m 0 0 0 0 0 0 ~j t~.1
N E~ O o 0 6 0 " 6 0 °n 0 m 0 ° 0 0 0 0 0 0 0 0 0 0 0 0 o o 0 o 0 0 0 0 6 6 6 0 o o O m 0 gy m M
3 0 o 6 6
m 0 0 0 0 0 0 0 0 0 0
0
31
LL v c vni a a o m N m N m m a m m m ai+ .n m m rv N r u'
m ~c ~c IT mw momooo~ommm nn~c nom mnmmmmoo oonnm mmao aomm nnn nnnnrv ee
~ E o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 ~c ~o nri ~u ~c ~c ~c .n ui vi .n
0
W m N n n m a io m N N r m m r n r m m m .n rv m o N o N a s m m m n °m ° r°n rmi °m o m n m N m o m m
a s E.i 88 `Q' N iv m a y v e a m o ~o8 o v a o aS v a. w n
o o O O 61616 o o o d o o o mo o o o oo oo 0 o o o 6 6 0 0 o 0 0 0 0 0 0 0 0 o oo 8 0 0 6 o 0 0 0 6 0 6 o S O O O O O o o lo 0 0 0 6 66
0 0 0 .4 i 4 °M. $ 0 0 0$$ 0 0 0 0 0 0 0 0
°iN Q I No o v M e v N°° v v N Ham" a o o o 0 0 0 0 0 VF V~
X o a a vni m v$ m m o m N a n rv° m °a m ~°n r.~i o o c~ m m e r o n n o m a e ,ate, o~ 2° 2° rv p N a v v o ~°n a a e o v~ °e a s °o
m a N N o N m r a N o m
W > N m n ti o° m M c n N m o m .1.
z r m m oo M m o n n o0 0 0 0 0 o 0 o m o
oc e ro m H v ni o m o0 o a; o 0 0 o o o ao ai e o v .ri m ai 16 < ai o v m m o+ 0
m oo n M m y a m a m o m y
o ry c m a N N v a N n n a m o m o 0 o N o 0 o m o N m m rv N °m °m m m m a rv
~ N N N N
> N N N
? ^ m m n vmi 00 °m °m °n n °m ~°n ° m a 0 0 0 ^ m o
n m o 0 o m m o m n o 0 0 o a m o 0 o m o m m v v °
of d ai ni R o0 0 0 0 0 - o d o N ri 4 m v° m m °o m 1O m °m m
o N ~o m m e a a a e m m~v m o o 0 0 o m o 0 o m o o m o 0 0
m
W o m m o N, o ~n'. m m io m n rv am m m a° N o o ti N rv o o rv r°~ rmi p1 o °o o 1 0 0 mo .m. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
o 0 0 0 0 0 0 0 0 0 0 0° 0 0 0 0 o 0 o 0 0 0 0 0 0 0° g o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
o m m m m N'~'i~ N <m m m m N N m m m ,m,~ N vai vQ, e n n n m m m m m m a m m m m m m m m m m m m m m m m m m 00 rmn
m M m
w en m o o aid mU o o a 2 2 a o a o a a o d~ MU O O O O O O O O O O O O~ j>>>>> vmi ~n r r
m r a m m m m v~ o ~ o °o 0 o n o 0 0 0 0 0 0
a m °o m m o rv~ m .n c m rv N r m rv a o o 0 ~ Q 0 0 N 0 p1 0 rv o 0 o c o a
a o o a o 0 0° o n o °o 0 0 0 0 0 0 0 0 0 0 0
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2 N ° o
z f f f f z z z N N g o 0 0 0 0 0
N f f z z f N f a a m m< a n a N m m m m a a
m N N m m m~ N a~ a m m m m m m m m m N¢ a a a a a a a a a~~ a m
m ~o m ~o m ~c n r m ~o m o m m o< a m m m a m m m m m m m m m m
~addduuO'ooudn adcroddcroooOOOOOOOO oo00`U Uz °U a¢oe rmn 0°ummimnM>>~>>> m err=
x
_ o m m o m n o N o $ N a m v mnm o m o ~n e o m m m o n m m o 0 o m n o o n m o
° m e o m v o N m a a m ~n m ,c a N m ao m .n v rv m a o m o rv o o m n o m o e u'"i a0 a °o n vmi o N
2 ~
U U V U u u u u V V U U V V U u u u u u u u u u u u u u u U U V U
d U U U U U U>> u U U> U u> U> > V U> > a U V U U V V U U U V U U U U V>> 6>>>> a
m > > > > > > m> > > a > > a > o. n u > > > > > > > > > > > > > > > a n a a
E
- -
m n n n n n
m m m m m m o 0 o m o o m a+ o 0 o m o o n omm m o o mmm o m m m o o a m ~ m m o o o m~ omm+ o+ m .m. .m. a+ o o .m. mmm+ m~
Z z z z z z z w w> Z Z Z> z z z Z z Z Z Z 2 Z z Z 2 z Z Z o 0 0 0 '°o~ o ^°o '°O~ m N o o>>>>>>>>>>>>>>>
a O O O a O O o O O o o O O O O O O O O O O O O O O O
c>>>>? o a a a°? 2 o o zO O z O O o o z z z z z z z z z z z z z z z
CI 0 0 0 0 m° m m m 0 0 0 0 0 m m m m m m m m m N N m m m m m m m m m m m m m
W z Z z z Z Z Z z z z z z z z z z z z 2 2 Z K Z Z Z Z z z z z z Z z z z Z Z Z Z Z Z Z K Z Z z Z Z Z Z Z Z z Z z z Z z Z Z Z Z Z Z Z
< a < < < a a < < a < < < < Q < < < a < < < < a 6 < < a < a < Q < < < < Q a < a < a < < < < a < < < < a < < < < < < a < < < Q < <
°
z~ °m rv m m r m a N N rv ~°c a a m ~°o n n° o o m °m ° m" m rv m m m ~ m
c m mmn n a a v a a m m m m m m n m o 0 o rmrv n n m m m e N N rv n n n n N m n 1O n °m
~ m m m 0 0 0 ° o o ~n m m m iO 0O iO N m m
~ F- o a o e v a vi m m m v'^i e e m m m m m m m m m m
z a
a
O ~
a w w w w w w w w w w
e 0 0 0 0 0 0 0 0 618 0 0 0 BI 0 0 0 0 0 0 0 6 0 0 6 0 0 0 0 0 0 w
u u u u'u
f G 6 m m a m m a m a i a s a s a c a u u u u u u u u u u
u u u_ u
° O a a a a a v a v a a a a a a o a a a v a a a a m ~o m t° u co m m a n
o m u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u J u J J J J j J J J u J u u u uu u u uuu
a u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
I
>I o n m rv rv m n m m m m m m m m m n n N o rv m m m
m m m m m m m m ^m m m m m m m m o o mmmm mmm m ~n m m m m rn .m. .e, ~ m m rv 00 .e+ vmi e e m ~c m ^ .°n `i n°
lvavvvvveevvvvvavvvivN rioN ..ivN niririN rirrv.+ ninim 'inim rvvevav
N N N N N N N N N N N N M N N N M N N
9
Q
N o~ N u°i N N 5°i N h h U°1 N N h N N M m m N N v°i a v°i N upi O m m p O O O N O a'0 e
1~ n n n h I~ n n n n n O 1~ n O m 0 0 Y1 m O O l~ h n h h n
9 O .y N O N N O O O O O
a
al
`u
9 N m u m a m w u w u d w m 3 » > Y Y>> Y>>> Y Y>>> T " Y Y'^ > w zo > y Y d Y>> y o o y o w w w w w o y y o o a v w o o y o y o
Y> 2 2 j j Y} 2 Y Y Y> Y r Z>> Y Z Z j. Y r z y j 2> Z> Z j
m
WI 3 m m m e o O N n m N^ N m e vi 1y
N m N N M m m p m n m e n e N e^ o N
i m N ti me
m io m m m m m as as m m v oo rv m N m e ~n in ~n m .n a m m° .m a m a m ^ m a m a .^n .n o rv
19
o Evivvvavvvvavvvavivovmni°viom moN NMm.:oNrymv.ri rim .:6vN
I .O m to N M .n m N N m m m o m m N N N N b o m in u1 0 v~ rv ~ O m e O N 0 .O af0 m .i N m m m m m m m n N 0
°1 E 'c o 0 o m m o in m ~c m n n n m m .n v"'i o m o o n m n m ~c a m m o a a°
o m m o o m m m o 0 0 o m m o 0 0 o m m n m m m m
m m n m m O1 m ~^o m In m n o m m m
N m e m m n m e e m
o z m m m m o 0 o 0 n 0 0 m 0 m 0 0 0 0 n a 0 a a c e N o m m o m m m m m m o .n m e ~c ~o a 0 0 0
0 0 0 0 0 0 0
0 0 0 o 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 o
y'I
0
-I m m 0 0 0 m a m m m m^ a m m m m m m m e m m n m m ~ n c m o N m o N m m ~n vi ^ m
~ 0 0 0 0 0 0 0 0 0 0 N O O. n M m o0 00 m m n a0 n O m
.i O o 717 o 0 a o G O o O D O o .i o o O ~ O O o O O o O o N O o 0 0 o 0 0 0 O o 0 o O o O O O O O O
U
I I
n 11 11 m m .°n m m m o in c n m m o o m m m m o M m N^ o
01 n co n n n n n n n .N. o m o n ~ o 0 o n n o o n n
30 .:oo.. .:o.y .ro0om .ti o ri fioo.: o.y fio0060
o NO m O.+ mNoNmmmmmrymm.nn N a ^nnnomomm.n
p mo meim~m me.N++moa0 mm°m a
m ofm .y m o o m n m m m m
t o c o o i o ri o . o. c o 0 0 .i o o o o a o o o Q Q o o a o o
c
m n n o m m m m .mn m m m m m m m m m m m a m rv m umi m m N o m m e
m
o a m m m ao 0o m m m m m mmm m m m vrv m o m m m m m m m n ^c m m m m o o n o m m w. o m o N m m m m
-'~vvevavvvvveevvavvvie ri~vori ri ri rirvaN ram .-i rim maN vivvvo
N rv N rv N m m m rv N m m m m m N N rv
a a a a a a a a a a a a a a a a a a a a a u u a a a a a a u a a a a m a a
o.d H H H N aw aw w m aw a w w w w w H v v v a a a w H " a v v y u u u u u u u
o v a a s w v i w w m a i a d u v y i v u w a a w v N m a a a N
It n` a` a
WI a
a E ~°o m .o .°o. .°o. .°v, o m e m e ~ .eo. .m. m m o `.-°i r ~ .m. rv ~ o o m m .n m o m .n 0 0 0 o m r^i rv .°n N m m m m
o N m~ 0 0 0 N o0
3 N N N N N N N N O N N N rv a rv .ti a rv ri O r
i 6 0 6 0 .y ri OO OO OO OO
O
3
LLammNV°i .°n v°. 00 vmi vmirv ~vmimm e.mi `"~~~.eo .°o .c~~oN ma .n eeem e m~~~maao oorvNnmm^o.o ommmoo
m e e m vmi n m a c m m m ~D to e c c m e v e, c
E.n vi .ov ri .crvovvvvavvvooavNOVrv N~cN rva6vvv.4 ri riN
.n ~n ~n .n .nmM.n N N N.. NNNNNN.....,.,
0
W y m n o o, o o m M M o m m o ~n N m n N m N N N N m~ m N N N .n .n N m m m rv rv rv a m m m n .n o v+ a, N N m n.. 8 S o o a o 'o^ 0 0 0 0 0 0 0 0 0 0 °o 0 0 0 0 0 0 0 o 0 0 o o 0 0 0 o oio 0 o 0 0 0 0 o 0 0 0 o 0 6 o 0 0 0 0 0 0 0 0
0 0 0
o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o m N o o 0 0 0 0 0.0 o a o o y o 0 o m o o 0 0 o o 0 o ro n vii o v o
al N o o p 0 0 0 0 0 °0 0 0 0 0° 0 0 0 0 o n N e o 0 0 o 0 o o o o e p o 0 0 0 o m m o o °o o o a n e r n n n
2 p a s a' a° a N N a 1 o n n a° ae e a~° n n m o n e m m 2° N a a' a a'r M
X ° eeeeee ae me em
l o e e e e e e e o o e e .ne .ne e e .n a .n N
W o m rmn .n o 0 o n m m N o rv m o m m m o m n m o m m o o m rv N e n m u. m e o m m n m
z N m e m ~n c m o .c m o m n o n n m m N o o a°o n m rv e a m o n o m o o n N .n .a o w m n m N e In rl~ m
O O O~ 0 a oo Vi e'0 0 0 o Vf R m m DO ri Oi ni o m q .n O C O Q V rv O V m e0 O O m OG vi 1~ eV Oi Oi o .O e.f ^ lG 41 ll~
0 0 o N 0 0 o N o rv m e°v o m rv N e e o N .mn N c o m N M rv rv rv rv ^ r r
N N N N N
> N N N N N rv rv N N
? O I O W of ° m O O b m 0 o
.°+f O^. M m vmi O n m m m m O O V O^ m .i Q m 0 m m m^ O m m m
l 00 oo m e W a in ry a ° .y m p .n o o o p n N o n N o m m m O v m m m e o 0 o m in m n t. . m . . N h V
o o v; 0 0 0 of m o m a w o n o v v m m v m 0 0 0 a r.i o o N o0 o e a N
N H ..8. N NN ~Io 0 0 0 N m e m m o m m a e m v o m N o 0 0 .c vi oo m .n o o a m n n
W o °o o~Nlo 0 1O "~~•o'eo m o .e. o W " m o eo o rv o o a m m .n N o m N o n .n m m o o e m n$ o 0 0
o 0 0 0 0,0 0 °o °o o
'ol o o N °p o o °o o °0 0 0 0 °o o° o o° o °o 0 0 0 0
°I Q Q~ Q Q m m m m m m N am m m r rv m N a a N m m m m a can a v e ran ran m m m .--i .i rv m m m m Q Q Q N m m~ m m m N rv m rai N rv rv rv rv rv
w m, m m m m m ao 'm'mm m a e e c m va a a o a e e e e e N rv N m
r F i- r~~ f- ~ r~ ti~~'i ~i~ ~ d O O O d d d d d d d O O d d d d e.•d,o ~ d d d d O d d d O O O O O O O a n a a a 0 0 0 0 0
.o m W m n a ~n m a v~ m $ n rv o m n .n m m m e e
O o o a o 0 0 0 0 0 0 0 o'', m' 0 0 0 0 0 0 0 0 0 °o 0 0 0 ^ o 0 0 0 0 `O o ^ m N o O1
o a o 0 00 0 0 0 0 0 °p 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 °o °0 0 0 0 °o °0 0 0
ZI z z Z z
m m m a a rn rn m m m m m m m m m'-° o a e e m m m m a a M o° a a a M m v a a o v v e a o v a m¢ 4 m m m N N m¢¢ m "P I a a a,
N r vmi r r f-t= i- r umi F- ~ti~ d d O d d d d d d d d O d d O a a d d d d d d d O d d d 0 0 0 0 O o o a a a n a o o o o o
r
I
_ m m m m m m o n o m gi m m e N m o d m n a n m N m m m o
~ .c m n m m N m m m a o m .c o o a N m n n a M o n o a' a m m m ao m .n m m o o mom o rv
Z c o e v~ a v v m a .n m .n a N m m N .n a °i N e N m m a ~n e a m e N
u u u u u u u u u u u u u u uau u OHE: u u u u u u u u u u u u u n u u u > > > > > > > >
'u u m m v u u u a 'u 'u 'u u a m u u u u ° u u u ¢ u u °u °u
° > > > > j > > > > > ° > > > > > > > > o > > > m m o > > o > > > p > > > > > > o > > >I>
E
d m m o, o, o, oi, a oi, m m m m m ti+ o, m m~ rn~ m m m ~ rn m m v, m m m m m m v,
_ o, ~ m m m m ~ ~ ~ m ^ m ^ Q^, ~ m
w > > > > > > > > > > > > > > > > > > > Y > r r l7 0 0 U 0 0 o 0 > o 0 > 0 l7 > .r > ~ > > a l7 l7 l7 l7 l7 U' U' V' l7 l7 l7 z z l7 U' l7 t9
o o o 0 0 0 0 o 0 o o o o 0 0 0 0 o o a o a a>>>>>>>> o » a>> a a a o a a a W>>>> G>>> G>>>;;! R G>>>>
- z z z z z z z z z z z z z z z z z z z z f a a a a s a a a z a a a a z f f a a a a o a a a o a a a a o a ala a
CI m m m w m m m m m .O .y w m m m m
W z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z Z Z z z z z ziz z z z z z z z z z z z z z z z z z z z z z
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a'aa a a a a a a a a a a a a a a a a a a a a
c~00~00000c~00N0000c~c~000~0~~0c~c~c~NNO~c~c~000NC~0~0:UUU. .UON ~00N~~0000000
0
_I
W m a .n m n m o m m Q` ^ o m o m m o vi m m o° N m m n .n ^
oom moo ~o ui .naoNrmi `"maa a mvmiNOmeg.N°m..m rv m mmo°. ..Am nnnm mn^m SoN 22- nn
mmo 0 0 0 0 0 0 0 o N N m m m m ~m m o rv e o e e e e^v n n n e e e o v
z ~ mae~ '^.c .n in
a
o'
V Y Y Y W Y
O Gwwww wwwWWwwwWwwwww as
u u c C Y
K
O w U U U U U U U U U U U V V V V U U U U 0 y ` Y 2 2 O Y `-~w
w w= w w L ~W L _ L = L J L J L = L = r ` W L ? G L 7 L 7 L 7 t W W W W W W 7 F- F F H F F L = H H H, H H H F- F' F f
c m u u_ u u u u u u uuu u uuuuuu1W W W W W W W W W W W
N z z Z Z Z Z Z Z Z Z Z z z 2 z 2 Z Z Z Z Z Z Z Z Z Z Z Z 2 z z z 2 2 Z Z Z z z z' z z z z Z 2
II' m m m m n .n o^ M o ~o n m N m rv m N m ,m„ vmi IN
> m e o 0o m n w e v v'^i v m .c o n m n n m oo rn m m n o m m n m m e n n n m
m v-i ° 1- m m m
m y
rv.-+.y- - .-I .r .y y ,4 4,4..~.i ,y ,4 ,y ,y ,.4
v
a
x
°I O l° O .n of m rv e m O ^p of e+ of O v°i u°i ° ry N N N vpi u°i N u°i m v°i n v°i v°i v°i u°i N v°i v°i v°i N N N . ° ° o
t o o a m o m m m n .c n N n u~ a ao vi m .n m v, v,
.+0..00 0.-. o.+ o.. o.. .+c .+o.-io00.+
a
I
d
o N N o N N N o o o y o y N o y y N o y o N o w v w m N N o o y o y N m w w N N N m m w u
3O i 2 i i z z y Z> z> i z i r r i i z> r z j i>> z i>> r r>> i i i z> z r Z>> i i i i r>> i i i>>>>
"I ml ^ N m in m rv N m m o .y e m N rv N .r n°, m e o ^ rv m m m N m m
= 3 .n o ~c .n N v+ o ~c m m m n in n n i° ul .c rv m~ ~o ~n ao a n ~o m o rv m o m o rv m m m a .n is
o f m v m r.i ~o ui ~c vi eo m m M° m ri r; m rri 0 M rv v rv
LL vl E o .n n m m o M m m m N m m~ N e r N rv m m n N m o n m~ o rv m o^ N m N e .n o N .n m
n N o m m M r ° em n me O1 m m m °p vmi M m m .e. n m o m m n m m ^ n o 0o n
N n° u+ N ~ a N a m ~ ~ m ~o m m N n m o o ~ m m m m m n
o z' 1O ° ° e .n B e a m iu m m e a .n a .n e m vi m rv e n ry e e .n M a v~ m ~o ~n m m a m .o m oo .n e m v m m v Ill M
0 0 0 0 0 0 0 0 0 0 6666 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
of
-I « o n tmO b b n h h n n n i° n n v' m n n n n e vn. uni e e m m n a om e e m m
n m m m ~ n o ~c e m a v v m ~c ~c m .c m
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
u`
o omo.°n ."'.o."'. .m+mO°mmmnn°Ondo."'.rvmr"i.°n.enmov~'i oomowo°em°m mao vm. mm~ mm°mn `"moo ms~
o..0.+0000000ooooorioc r4 noooo.:o.:o..
J p n o^ m m m N n e m m I N n .y
1J o m ~o m o i° n °n° n e e e e m rmi n n n m rni oo rv m m vmi vni ~o m m n .n m e m a m .`{n n m °n m ~o ° °m °m o c ~o n wm n m .'iii °m
Q o w o 0 0 o 0 0 0 0 0 o G G o 0 o 0 0 o o O o 0 0 .4 o 0 0 o m O G o 0 0 0 0 0 G O 0 0 0 0 0 G O 0 0 0 0 o C o 0 0 0 0 G O o
r
« m e N .n o m .n ^ m mm I m .1 N1 n o n o m
m m m m n m
m N e N ry n~ o mm
'o n o ro u`"i m .n a v`"i m oo m o ~c ~c mm m m m n m m . . n vi I° m o n m
N N m N N N N N N N N N N N N .n M N l° .-I m N N N e-1 m N N N N N rl N N N m m N N N m N N N N N nl N
W M V N N N N
'C 'C 'C 't 't o a m rv n a .n-i a .n
>
a u u u y y 'O u u u u ~ ~ ~ ~ o' 01 u y y y o' °1 a y u v a a a a a a a a a a a
w u u u v u a u u a+ m a i w a w a a w w
c E E E
~ - - ~ ""t 't t d H H H
~I N .n .n .n N H H H .n N in w N H N _ N
a w w v 6 w LL a a a N w a °i m a a w d w a i v a `y N m m w a a d v v
S, L
L A- L L a: It L L a: It It It It a: a-. L
LLI a
E EI m o °m °o o .°n O1 rmi rv rmi, n n n rni rni rni n m o 0 o N M m o o m u m m m o m m o N o o m m N o
0 0 0 o o 0 0 o e m m a o a m m
m o m o o n n m m m m °0 0
ri m o fi .y 000000000000000.+0 ri .+0000000.+
0
a -
I
3
rv^ m o 0 o o m m `i m ~kw,, m m m .n °n a °n .m-i «m. N N rv m m ry a m
I rv m .Ni n n m m m n m m. rv e c o m m w" m o v o o n m m- r m + ~ O
m m m m m .N-i
E N N N N .-i o N
rv rv N N N N rv rv N rv N ti N N N N rv N .y N N N N .y .w .-I .-1 N .-i .i .y ti ti rv ey N rl ti ti w ey ey .r N N
rv
O
M r
W d m m ~ O M N n N .N-I M~ O N N M M O N O O O O N° l~° O N N O O m .y O N O N ti m O .n m a M e m e 0
L °o °0 0 0 0 0 0 0 0 °o °o o° a 0 8 8 . . . . 0 °o °o °o o° °o °o °o °o 0 0 °o °o °o °o o °o °o °o o °o 0 0 °o 0 o °o o °o °o °o S S S °o o °o °o °o o °0 8
r_ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0
m o° o a° a a' a° a a^ ae a s a°° a° a a° o a$ a° a° ae N m a a e, a° 00 m a^ e
al N° n .n .o o m m m m o e o o m M i° e e en m m m m m° m .n n vi ° vi n vei m m uni m a m m ui m n vmi ° n en ev m n° m
X ~n a e rv m rv ~n rm m m N d N N° rv e n vae M 11 m 1 n a. m m
OI ° in a .n ~n a .n a .n vi ~ e e ° a v. c .n a .n e
N o v a v+ e e .n
m n m N n m m m m m m N m m m m m N N N o n o a N o o m m m m m
z o m n v'^i a e n m a m ao n o 0 0
W 0 0 m o o o m o 0 0 o m o0 ^ 0 o .n .n n m o rv o .n o o e o o e o
-I v o p o° c o 0 0 ,y o 0 o o ° o ,y u °i n o o o o o O
O m rv rv N `m° c°°° a a a N vmi urvi v e N o 0 N 0 0 N m oom N 0 0 0 o N N ~n 0 N o o .n vni N e N o N 0 N 0 N o N o o N N 0
H N N
>
2 n m m .O O m m n N I O n m m N^ m m n 0 p n m 0 +f N te o . m e O O O O O O O
N N 16 n~ n N n ~n O oep m n W O Q 00 m 0 0 .N+ O O O O 00 O O -1 m N Q od m 6 O ~
vi 4 v 16 vi oo n rv o o 0 0 0 0 0 °o °o o o o 0 0 0 0 0 0 0
~ m m °e a g a v e .n e m v 0 v 0 0 e 0 0 0 0 0 0 0 ~o o~ o l m ° a vni v e e v vv'i n uni N 0 v 0 a a 0 N o e o 0 0 0 0 N
NN NN N NN N
~ N M N N N
LL° m o N ^ o a m o_. - N rv n e o m N m e e M m o m a
O o °o °o °o o °o °oom `i °ti m 'i ° o O p o 0 0 0 o a alp v a v v o 0 0 0 0 0 0 0 0 0 0 0 o a
°lo 0 0 0 0 0 8 0 0 0 0 0 0 eo °o OO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
z 0
z z ~ z z z~~zzzz~m~~,~'~~f z z f z f z°z ~f f
~
a'a m ry N a m mla:N~m N r¢i,o M m m m m a N m m a N a N m m m< <e < S m a a a m a a¢ a a
wo0000
01O doa 0 aoooooooooa a~~dd'uUa d aaocrUdUrJddOdUpcfcf
0 n io a a a a 60 .i o m I I N m ~o m m N m n 6 o m rv n rv m e e e m O e
p o o °o °o °0 0 0 °o 0 0 0 0 v' v' °o l °o 0 0 0 mo 0 0 0 0 v e °o o v e m o 0 0 0 o o 0 0 o p e o
Z o 0 0 0 0 0 0 0 0 0 0 0 0 °0 0 0 0 °o °o o °o 0 0 0 0 0 0 0 0 0 0 0
e 0 o 0 0 0 0 0 0 0
z 2 2 z 2 z z 2 Z z 2 2 Z z z z Z
a a a N N m m¢ m m m a¢ m m ala <m m m m m m a a m m N Q¢¢
m m m m a. m m m m m a a a a.. m e a a a a a N
a m rv N N rv m N N rv m rv N N N m m n m m . n n .u .c .c m .c m m m m
N 0 0 0 0 0 a a 0 0 a
a a 0 0 0 0 00 0 0 0 a n d a a o d i c
22
x
I
x m a .y o N n ry e o e M n m m o m e ry m .n o m o a r°n
l~7 N c N rv e N N m m r n ne .O I~ m n m m m n m e vei v m2 m~ rv o o n w m° N n ° N
u u u u u u u u u u u u u u a u u a um u It
I u u u u - u a° u u u a u u u u u u u u u u u u u u u u u a u u a° u u° It It u
> > > > > > > 7 7 7 a a n n > > > O O > > > > > O > > > > > > > > > > > > > > > > > O > > > > u u > > u > > > E u u m m m m m m m m m m m m m mmmm e m m m m e m v e m m m p m m m m m m m m
m-- mi .m. o o °o °o S m m m m o m rn m m rn m m . m m o+ m m m o+ m oi+ m m oi, °nmo, o+ m
A U' u' U' l7 U' V' l7 Z N,
Z 2 a (9 z l7 l7 l7 l7 U' l7 l7 V' V' (.7 l7 U' ~ r ~ m > > > > ~ > > > > r r r ti > > > > >
> > > > > > > D D > > N ° ; > j a > > > > G D D n > > > > > > ra a a 'a a a aaa as a a a a w a a a a 'a 'a a 'a a ¢ a a
¢ a a a a a a a a a a a a a ¢aaaa a a 2 f 2 2 2 2 f 2 2 f f ~+f f f f f
cl N m m m m .r e e e e N .r o .-i o + m m m m m m m m m m m m m m m m m m m
v .i
u+ Z Z Z Z Z 2 2 z z z Z Z Z Z Z Z Z Z 2 z z Z Z Z Z Z Z 2 Z Z 2 z Z Z Z Z Z 2 Z Z Z Z Z Z Z Z Z z z Z z 2 Z Z Z Z Z Z 2 Z 2 2
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a (7 H l7 U' t7 U' !.7 C7 V' V' (7 C7 C7 U' U' l7 N O N l7 U' l7 l7 l7 l7 U' I U' C7 l7 l7 C7 C7 l7 U' l7 l7 U' C7 l7 l7 U' (.7 U' l7 l7 l7 l7 l7 U' l7 l7 V' (.7 V' (.7 U' U' C7 U' C7 U' U'
o_
I m m m m~ .n N m m^ n m m n m o
w °m mmmm .0 1O n n e n n e n n n m oo m .n-. " g m m m N N m o ,mn m o 0 0~ m m m t° n n m
m m m m m m m m m m m m .e° .en m m e a a, m e o e e e o a o a~ m .n ~o .c m .y 0 0 0 0 0 rv o `D `D rn e m ren m nei a e o 0
¢ ~ rv rv e o .n m .o .o .c .c .c m m m .n N m m
m e m
O O O O O O O O O O O O O o c o 0 0 0 0 0 0°° 0 0 0 p 0
O O O O O O O O O O O O O O O O O O O O O O O O O O O O
a i d N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
° a 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
f G ; ; ' E''''';'??__ 2 j>;>; Z0 ? x x= x= x x= x x x=0 x x x x= x x x x x x x x x x x 2 2 ° w w G G G G ~ ~ G G ~ G G ~ G G G G G G G w w G G r= t=r= w w w w w w > > > > > > > > > > > > > > > > > > > > > > > > > > > >
N a z z Z z z z z z z z z z z z 2 2 2 z z z Z z z z z z z z z z I Z z z 0 0 0 0 0 0 0 9 9 0 0 9 9 9 9 0 2 0 0 0 0 0 0 0 0 0
u N N m n N m n n N O e N o d o v m m m O ~D N N m a'0 O'p m VI b ~/f N N ,/1 ~/1 N of
is ~n m 1c . ao m
m e o m N ,o rv ~ e e e °n m m m m o m a o o m m m m m n N N o N m ,c m
y n u m m
`i n u+ vi ri vi n n n o ,u . . , n ri o A ui e n m vi e m m Ili ~c A 'G A v m vi a vi v vi a .n
Q
i
ori~ nSn n8nn8~ nnn rv88S8n n:oN8S8mrv88rv°no no n nN n . .
m N, N
- N
°a v v d N
d
m w w u w a w u w
v w m m z v
w u w u w u
a d v d v
3 m > w
i i> i v
i i> a a a i
r a
r ii r a r r i
Y a~a r a i> r a a a r r a a r r r r a a a arri a v r a r i i i a a w r m r r > i o a a
ml
-O m,o n`" e.ueemmvniom~o~a.°na°om 0°Nn.caggmn °n `",°no~ "'H..om nco .6 6 6 m mmn
LLiEvn ui d ~dve vvvem dorm ~.io.-~~6,~ ~ .6
cIi
IN m m o m m N n v,~ m m a m n m m n m m ,n o m ~o m ,e e n m
m
v En mm m mrv mm cme~rm N nnmmo N mnnn~~"mm$`~~'~ $vn°+eN V N ~m~vmi rmin
'oz'oeeeonoom°n°o °o °.+°nnnmm°o oommmmooo~ nnnm mmo n mNN n,n m ,n ,c ~n
00000 0 0 0 0 0 0 0 00 0000 o cc o 0 0000
i.. 0,00.. .4 1,5 o.4 600 o .:0000 o
o o N 000
LL, ~
m rH o m o m o,~ e m ~n m m m N m rv e m m o m m
u ° m m u~i m m m m o m o m m m o n m ~n o N o 1 1 m n a° o a m n o o .mv
o o .4 o c v m.+ o c o o c o ..i o
o.. .y .+o.... -4 .i .-i
u o o
u
o x nOO No°o,88 norv888m ^8,$n~ n nN n L°n11 IIN
~4
Om n 8 °m n o rv
3 I
10 m m o am n N^ m mm ^ m eN o
.n N m n m ~n a m m N N o m m n a n .n o
~i~nn mo vmi,cm a,a~nom~u,o,n mmm og m vm $,m,nN n~o.°+
n .°c ~c ,c ~o m o o m m a o m m m ° g m m m m rmi o n v1pi ,c ~c v~'i ,c m
.o m ~o e m vn . o rte'. v vmi ~o o v e a ,c n m e m a v n
,n n~vin n.: w,n n,:n ui~~~nno~n vivm vid viv~+
> m
1w 1w 1w 1w 1. 1w av vaa a 1~'° a u°wa v a a v vl,v vv v v v as°w d vvi w
_
o w v w a v u v w i a d v u a w a v
a! E
a E N v m o N wo . a . . ^ u o 0 6 6 0 m .n m m N m m °o n ,n n v"i n °n °n °n °n n °n
i m m v, ,n a a v o ~n
n 3 vi o n . 0~ ui c m vi 0 m r e m 0 e o e m
al w
c v m m m N~ N ro m ~ n N r N . m m m m m m m m~ ai ~ m e m
v a n a o 8 o e n m m m a m m m °o a .N+ n n o 0 o e a o o v a a o v o m
-lE",IP.°..+ tO m~d°z .+vv.. 0dN of m.c ~c ,cvvo o 4 o v v v o..
,y ti .w .y .i .y ti ti _
r m
0
W v o u+ .n .n n o 0 0 o m n N m m ~o o N .n o a v m m o ry o 4in. rv g 8 rv o858888888I88S888S88 8 8 0 0° o .0 c d oo ~~QQ 6 o° o 0 0 0 o c o c o o c o 0 0 0 0ml O O O b O O O O O Oo 0 0 0 °0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 °o °0 0 0 0 °o 0
W o °o o a °oo °o °oo ~°o ooo ooo °o °o °o °°,°0 0 0 °O O e o o o.. .i ...i
a
0
91
° n m n n 41
- - - - - - - - - - - -
z^ °8e^~8~ °T8 m°°'"
IN, IIoo~e4SBaSSS88SSS8; 8S I N, ac of m °n a °m' a Q m I o O N
O N v N a m 0 o c o 0 0 0 0 o m 0 0
N ~oo~~°n °a eN °o O ° °0 O
m vmi e
Q oto
°o P1o
g>oo00 oon Noa °a mri 6 oOvNm ,rion mom°om e~'ommrmie o°
N o N ~n o ~n v o a M n v r°a °a o e o °v n rmi m o o mo o
? m o m o
0 0 0 N N o ry
n a mo o mw m tD0 rv ° o " ° c 1, w
0 N z °z °z °z z N < a m a a„
T 1.
cracaaad oaaaaaaa
Wo N v N m v m °a o o 'mi °m m rv o 0 o m y° m M° a v e o ° .mi iO a o° v °rv a n m ov m o m d a o mo mo a Hrv, o v .n ~n m m rv m
0 0 0 0 0 0 0 0 0 0 °o 0 0 0 °o 0 0 0 °0 0 0 o 0 0 0 0 0 0 0 °o
zi g f f N N----- ~ a z a °g ml~ z z z z z °z °z z g z
mmmm~~ eb~aa a ~''m ~.ao~mm `m°mm~eno~m mmm,a~,~eaammm<1N~a.,~<
~daaaa d~daaaaaa2 dada doa dada aoodidcracdudaadauauddaua
c o vmi N$ o .m. o a°mo m uni o .~n.+ a °n m °n n n N^ o n e n a m °m r°n m a n e om- o o rni n e a m m° M n n a m ~°v m ti m rv
d u
d u musu 'u u u u u u u u j u 'u 'u 'u u `u u u u u u u u u u u °u u u o °u 'u u v u 'u o 6 j m u u ¢ u u ac o z u °u 'u 'u u u u °u
s ¢ oc m s c¢ m m c z oc ¢ z s s c m m¢¢ z m¢ c m a m c z m m ae ¢ m a c m
E
- m m m m~ m m m m m m rn~~ m m m a m m m m m m m m m m m~ ti~ a m any, a m r °o any, ~ N+ ~ m any, m any, a m ~ m any, ~ .m..°.'
A y Y y a a r Y " r a a r ¢ a a r r > r r
a a 'a 'a a 'a 'a 'a 'a a 'a 'a a a 'a 'a a a a 'a 'a 'a 'a a 'a 'a 'a ra a 'a a 'a as ra a a 'a 'a 'a w a a 'a a a 'a 'a G G a a 'a 'a a a 'a a 'a 'a a a a 'a a
aI - - - v a a o n n o n
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
z z z z z z z z z z z z z z z z z z z z z z z z z~- z z z z z z z z z z z z z z z z z z z!z z z z z z z z z z z z z z z z z z z z z z z
< < a < < < < < < < a < < < a < < < < < a < < a < < < < < < < < < < < < < a < < < < a < < < < < < < < < < < a < < < < < < < < < < < < <
°-i e m m °o n o n e oo N o m o 0 0 o n m m m ma o m ~n m oo °m m m a n o g mmo m ~°n o o 'm`+ m y °e v° °a °v °o v m o v ~c in
¢ ug r ~ ~n
n .i .y
n i a a i c n n i i i n i a d i i i a i o. n i a nn i i d a a i d i a= n i i d n i i i u
O
GwwwwwwwwwW wwW wwW Ww wwWwwwwwwwwwwwuwu w wlcwwwWw~wwwwwww~wwWw
f u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u ulu u u u Wu u u,
ow mmm mmm mm
,a m c o o m m M v1Di v^i n o n v o o N m rv
m v o a a o 0 o a m o n .^n a v~ $ .m. .n. mam m M o ~ °a e m m a c v1Di m u°i .°n ao vni m m o n m N n m~ rv m
iui r~~n eerie vio.n vioovem vivem ~.idm r6dirv 0..r rirv
a
a
°oNN°°o8Soo8888888~°8~°0 ~~m 66 .
n n.m
.+0 0000 m o 0 000 nic 0mri000000 0
a
3 a ev w~ w rv w w v~ m w~ w i v es v w~ w~ m i o y o 0 0 0 0 8 0 0
~i ii a i>> i> i i r>>> i i r a> i i> i> i> a>> i i a i i i> r r i i z r i> z y z z z y z z r z z
3 ~
a v m °m °n 'rv^ n~ umi n° 1O m o .n m m N .n ,n a a, m m rv a m m N rv m N m ~c a m v^'i tO m u `O m
ao rv °o m m o m m m rv e m s a m m rn m e o
_1 E m oc v e .ri v v v m ~•i v m o v o e o .n ao e M o m e v ~.i 0 0 0 0
« v o o ni o n rv o 0-
6 mo ti m o 0 0 .4 o 0 000 000 o a o 000 0 00 000 0 0 c o 0 00000
LLI m .n m o 0
n p1 N 'a" ^ m n n v rv m m m °m o m m °m m °m $ ~c m °n °n n n °n n m o o .m. rv m u°ti g m o o m o c vmi vmi vmi n m N o o m .n m m m o rv rv m m
.+0 .:000.. ,-i c c o o.+o o c c o..0 000 006 .-i c-+ .46 c.4 0.+.40 c c o0 o c o 0000 000000 c 00000
u` p
i
n
r g n i°n ° m m° b n m e o g e° m° o m m ON ON N v°i u°i m m o n .r N m rv ~n m n m$ e m e m ll~ y
4 4 0 0 0' o o c o o.. ri o o o' o 0 0 0 0 0 0 o rv o 0 0 0 0 0 0 o o 0 0
3
0 0 °m . m m e m 1O .°n v^i a rv° e in io a n °m m m m n m m I" n~-i e v 'o `O n~ m e$ m m a .mi rv< o m m m
vm Ao rv o 0 0 0l0 0.. .+0 o.~.rv: o.. fi o.. o o0 0 0000 00000..00.-~ 0 0
L
iO n° °m m m m m °a a a a e v° a m r^i vmi o m .mi o° .m+ o rv a o6 11; vv Zl N m m o a m o °o+ m i n n o o vmi a m
ocvmv vi viveodd.n vi n ~ceom vi Sri ac ~
.n m .n L", vi o o m rv m m m m m rv n rv m o rv .n m m n rv m m rv rv
w av vavva v av v a vv v v-o a~ a a ~ ~a u
v a d u o u u i m d w v v u a i v w w v w w v v v w u a u v u w
o i u m m i F E a k a d d m w i w °u' w d v v v d i m
ei a d
E m o 0 o mmm m m a ~n v o v m m m m a .n .n m n m a a m m a .n
m o 0
m°m m m a m m m m
'm v+ mmm a° a a~ a e a n a a v v n v a n n o v a a a .n
~n m .n m m m .n .n rv rv rv rv rv rv rv rv rv o w rv rv rv rv rv rv rv rv rv rv rv
~c m o 0 o c c ri o rv r4 o o coo o c 0 0 0 0 0 .i o 0 0 0 o c c
y o
a c
3
c°i ~ m~ v°i v°`i B o a a °n° N m m rv m o m n " °m °m °m m° °m °o m m m o o
v v n o m ."i ~ m a o n r°i o 0 o m o o n o m m m o 0
m E.`". e e m 00000 .4 o m 0 0 0.+
W n n m u~ m m m o o m rv a+ m~ m rv m a m a o .n m v+ a s a a u+ m m a m m m n m ~n
0 0 0
o rv rv .m. m rv rv S a io a s n N m m n .v rv rv rv rv rv m m m rv a n a o m N H ^ a in .n m n
L o o° 0° 0 8 $ °o °o °0 0 0 °o °o °o 0 8 0 0 $ 2i o 0 0 0 °o °o $ $ 0 0 0 0 $ o $ o $ o $ °o °o °0 0 0 0° $ °o
c o 0 0 0 0 0 0 0 0 0 0 o c c o 0 0 0 0 6 0 6 6 o c c c o 6 0 0 o c
o 0 0 0 0 0 0 o c c o 0 0 0 o c c o 0
W m ;F a o2 be ~~ee X o 0 02 3F ~~ee X a o 0 `f o 0 0 0 0 0 0 0
9l0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 o b o o m$ o o o o o moo o 0 0 0 0$ a N m o o N e m °u~i m a ~.°e,
_ ° o 0 o m o 0 0 0 0 0 0 0 0 0 0 0 0 m o o 0 o moo m m o 0 0 0 o m
w ° o0 ova o o m o 00 ~e;e ~aeae a:ae aexae Nae;e a^ ae~ m e a° ~e ae e~ ~ae~ tae tae a a~ a: xx ~;e ~°ae ~e
oooeti$oo^ooon°n ~onoamA goo rvamou°i u~<°~n .no m mwl.1 1 V+a°vrvi o.n omv~..m vm .^n oa °ao
v+ rv rv m m rv m m rv n n m rv m m m rv m .n vi n
a
p v°i m °a m X m N e m m m m m m a`' o o o N r o m ran rXi N X m m e n~i m m d° d° 3° X X 2F X m .3.. 2° X X X a
i
>
z m o 0 0 0 0 0 0 o m e ro °a, vrvi o r"i ~°c o m m o m v°'i o o 00 0 0 o m ;A;.00 o o m b°° n cC vi o n rV n m b d O o m N y °6 o N 6 a0 m
r rv
> 0 0 0° 0 0 0 0 0 < o m n urvi p m m m o v rv o v o 0 0 0 o m° 0001 -m m
6 6 of ro m
> G o m O 0 o C c vii 1O ° 00 m " n moon 0 o n c 16 m m o 0 0 0
e o o
rv h
e m a m rv o
z m m m n o
w° O o 0 0 ° N rrvv O m O O N rv rni rrvv 0 0 0 0° O° o 0 0° 0 0 0 0 N rv m ti 0 0 o" rv m m° o° o o " ti rv rv o m o rv a °o $ o
z z° ti g z °z f f 2 z F z z °z 2 °
°z ° 2 2 N f
o m a alp n n a a a m m m m a< am am m m mm m a m m a a a a Q m m m
wm doo~ mmmmm~nnm m~~~ mm~~mm~n~,nm~~m~,~~,~ ~~~ma~ aim ~m
o a a o 0 0 0 0 o o o o o o o o 0 o o o 0 o 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0'o o a o 0 0 0 0 d 0 0 0 o a d 0 0
a m o m n m m m m m n
O o o ° 0 0 0 rv^ x 0 0 0 0 m rv n O S O O O O g rv m m 0 0 0 0 rv b 0 0° 0 o o l m O O m ^ 0 0 0 0 ^ rv 0 0 0 0
ziz z z z z f z z F F OOH f °z z °z z °z g
u e^ a N a a e e m m a a a a a m m m a m mm N m a m¢ m
am nn~nmmmn~,mmmmmm~~~~~mnnnnno,nm~w ~,au~`,,°~~Q,~,,,,~~~ mm
G ~oooaPo oooo0000000000000000000000000000000dood0ocoodoaooa 2, 2
aoo
i
0 o rv oo m
o N ^a a ^ m m m °n m °o m a v m °m
m ~ u u u u u u u u u u n uu u u u u u u u v u u u u n a u a u u d
u 'u u °u ° 'u `u °u u > > > > > > > > > > > > d > > > > > > > > > > > > d > > °u °u `u l'u 'u °u u °u °u °u `u °u u 'u °u u
s o m m u m m 3 m n a a o. o 0 o a c o>>>>> o>>>> o o » o o>>>>>>>
E m
m
m rn o m 11 m m m m m
m o°iti+a+ a o 0 0 o a o °o ° g o o° °o o 0 0 0 0 o m m A mmm c
m z z z z z z z z z m m°~ z m m m z m z z z u u' z°° z z z
Q Q Q Q Q oz< Q Q¢ Q Q Q Q Q Q< 7 > 4 Q R w z z so^ 0 0 7 7 7~ Z 7
z f f f F f a a LL a a a a a a a w a o a a s
11 1 m o 1-2 2 2 11 1. -1 11 o m o 0 0 0
w z z z z z z z z z z z z z z z z z z z z z z z z zz z z z z z z z z z z z z z z z z z z z z z zz z z z z z z z z z z z z z z z z z z z
a< a a a a a a a a a a a a a a a a a a a a a a as a a a a a a a a a a a a a a a a a a a a a a a a a a< a a a a a a< a a a a a a a a
a
m mmo m .r ..rv m w mammas
a°-~ M e o v o u°~ .°n ° m m wl .1 .1 ° °m °m m° m m m e m m m N rv M m m m a+ m m m o n m rv a o ~°c m o m m m m
a a e
n
0 i 1 n 1 1 a d a a a 1 1 1 i i d a i n u n n i i i
F w u x ~c x x x x x Oe Oe Oe ~e x ~e ~c x x x x Y- x-" u Y x t Y x wl w- Y x x Oe Oe t Y t Y x x W z O O OOe B a a z c¢¢ O O O c 0 0 0 0 O
c w z W W W W w w w w c w z¢ W w w W w W w w w w w w w w td w w w w w w w w w w ,w., s W W a a c i a i a a i
f u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u u
u u u u u u u u u u u u u c d c d d d d a n a d °u a s a d a a
O w w a e e o a a a e o a o v a a o
0
m m m m mlm m u z°u °u °u u u u u u °u °u u u u u u u u °u
m u u usu u u u u u u u u u u u u u u u u u u u
v M " m umi o m .a. o m m n n b m r m e e N °i rv °rv r°~ n n n n n n
>I 1 rv ~+1 N N N m n rV rv b ri b u1 ri n 00 OG OC OC OG OG l0 oG ~n Y\ tG tG 'e 6 'd ~O tG ~G b b ~G m
Q
o r m e m e vmi e e m e n o a vmi umi n m e .nn e m m m m m .°n e e e e$ m i°n ° h m m m° m° m° i°n
C) O O C) C) C G O O C) C) O O C1 C) O O O.. O O O G C) G O o O C1 Ci G o 0 0 0 0 0 C o
a
o o d o d o o 0 0
Y ¢li i i z z r z z z i z i z z z z i i z> i
ml
o a rmi m n e a e °i °m 2 e a° m e e n n m ^ rv e m o m m m n 'r' m °m m m m l m m ° °m o n m m m °m
_IErv noaN oaoooooocooo ..oo.+ oc oo.a riv66vvvvee ~.iv v+ viv ~ivvvvvv6e
v E m N Q m m N °m b o°a ~n a N rv mmm e n o m o o N rv m m m m o m m a o o m m m
n° m m m o o m o 0 0 o in o
'o z'nnmvmi v°i i0 $Ob1 O 6oomnaaanmQoav'^i v'^iaN m °'nnmmmmmmmmmmm
0 0 0 0 0 o o .-i 0 0 0 o 0 0 0 0 o 0 0 o o 0 0 0 o c o o N .-i o 0 n o c o 0 0 o c c o 0 0 0 0
_LLi r
o< v a o e °v m a° a v v^ o a vrv vm o o m a a M o o v,o a o o e e e a a vm o v a m v vm n m m o 0 0 0 0 0 0 0 0° m. m o o 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 o c o 0 0 o c c o 0 0 0 0 0 0 0 0 o c o c o 0 o c o 0 0 0 o 0 0 o o c
u` o
pxw l"~M~~~~~~oo~~n
~o 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o o o o o o o 0 0 0 0 0 0 0 0 o d o c
3
41,4 4 4
O' O a a e n° m n N r v M a b b b m^ o a° a .b-~ m m m m °i n b n o m m m b o rv
m o o 0 0 0 0 o N o ~o a ~o m b b m
m e o' 0 0 0 c o 0 o 0 o c o 0 o o fi o o
o nn omnvmi °rv Nmm-~o.rvn Mommm rvvvmlmI mon °~°o~eerv~NHrvonnnnnnnn"'b u1Oibn °m oo°mn
I N I'; O rv N Q N a0 oG m O] Pl in w ~G w w IL b w b b 16 161
u 1w 1w 1. as aa~a a a ~a a naa a as maa aaaa a
w of of
3 w i d a w a u w d v w i a a i m u
i
d m
m EIS°a va~erv^rmia a~°nmmv°i v°~°a~m.°.rv 00no °a aeMN °.°0 ~~°c ~°oeeee°J nnn nnnn nnn°o°oo°OO m m e em mm°n
o 0 o c c c o 0 0 0 o c o 0 0 o c o o 0 o o c o o 0 0 0 o a o 0 0 o c a o o v v v 6 v v v v m
a o
n c
3
,m.12 .1 N~M ~'mIomm, m MI mTIT mI8~. 0011 8~nI~.rr..:gzg a-o8og8Soo~Mmm m~N
n E c° o 0 0 0 0 0 0 0 0 .-i c 6" d o c c o c o o o o o c~ o o o o o o o o m e e n
W dnn~nrvm~ com nnnmab~n rvbo.+rvoN.. o a ,n o
8 8 I- o0 oa bbbbb .1 m m o momo n ~nmmNm co b n oooom o o
o88 8 88 °pmNmNm°mrvmNmmmmNmm
o 8 1000N 8 m $ a 8 8 8 ~ 8 ~ 8 8 m 8 8 8 S 10 b m S 0 o 28 8 S 8 8o $ o$ o o$$$$$ o$$$$$$$$$$$
0 0 0 0 0 o c 0 0 0 0 0 o c o 0 0 0
0 0 o o 0 o o 0 6 0 0 o c o o o o 0 0 0 0 0 0 0 0 0 0 0 0 o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W m o o o o o 22 0 2F a 32 3° o o 0 0 aa ~~ep ~e z~ep ~~ee
vii n ur s e r°i N *lei* o n N o o o 0 0 0 0 d o 0 0 0 0 0 0
0 0 0 0 0 0 0 00 o o o o o 9 o b o b b b o o g A
= pl o v a b n m m m p C O V V m 0 0^ o 0 0 o 0 0 0 0 0 o 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 0 0 0
X m r y
W "I~e~e~eoxQe~oaxxxeoo~$va~$~°~°mo~aee~~°~Maamo° oo° o°~oaa°~ooo
p m u1 a n b O V O N N o o^ O o 0 0 0 O O O H rv b O m m A m m N o 0°
0 0 0 0 0 o m o 0 0 $ O O o 0 °
0
QmXXNa°naHXXXoma°o°oma~~,mv ~imor~EN~~o oq~~emrv°NOVVOOammoo as a°Q~~rv°~o°~~PVo
> our ,n n m a r .n o^ .n o n oQ b our b our o 0
z o n .n. o o 0 0 0 n.n o n o m o n °m o ~°n °n 1
°m e m .rv. a m °n o v
Im v °a 000000 0 o o„° 0 00 b o
O N o 0 o e o o m° $ o 0 0
H
rv a o o ~n o m our n
> o .
°a m vmi °n° 0 0 0 0 0 0 °m o a °m ° n °m m o° co o m .rv-~ o ur °
Omzv m m mncn 01 `"m°n occeomo ° M
om °o om °moo °n ~+vm edom
bmm mmn rvmmoN p~rvrvmN~~m°N-mmb° nmmeb n ~omo-o-^NSBoommB°oSSoaSoSB
z -Z
o N m m m a m m m m m a a e e m a^ ,0 m a a m m m m m m m m m¢ m m m m a a a m m a a a a m
w b b b m m m b b b m m m m m m m m m m m m m m m
a o o,o o a a o 0 0° a o o:o o'O o O o 0 o O o o O~O o d d a0 s° N>>> j>>>> N r r r m
obbom~,., ohm nmrytimN.. our m.. o.N+~°.iN~vn INn m~m~m.,mmm rve mho m., mob brvbNb.+ m
0 0 0 0 0 ° o° rvo v a o 0 0 o 0 o rv o o °o 0 o v °1 0^ °o 0 0 0 0 n o 0 0 0 0 0 v o m
z 2 2 2 f z z° °z Z f f f N ° o °o 818 c o 0 o° o0 00 0° oo 0 0 00 O 0 eo ° o°
I N N Z Z N N
m m m m m m m m m m m m m e m m m m a m m m e m m NON m a m a a a a m m
¢ u+~., b n m a m m ti a m m a
2 m m m m m m m m mmm m m m
N o a 0 0 i o d 0 o d i 0 0 0 0 o o o o 0 o o 0 0 0 0 0 d o Cl d m m° DDID
$
i
ur o n
m °o a m a m e^ °m m co o n m °m o m m m o^ m N o 0 o o
m n m
v d ~ v N b ~ e~ co o 0 o a^ e o a v"i oo v °o n umi r b a rv°
a a a .n a
,tea„ u uu > uu u> u u u>>° uu nu u u u 'u 'u uu 'u uu nu u u u uuu u u u u u u u u u u u u u u u u u u u u u u u u uuu u
u > > a > > u > > > n n u > > > > > > > > > > > > > > > > i > > > > > > > > > > > > i > > > > i > > > > > > a > > > > >
u n n n a a u u n n n n u u u u n n n u dun n n u u u n n
E
o 0 n n n n n n n n n n n n n n n n n n n n n n n n
= o$$ m m rv m m rv m m m o o m m m m m m m m m m m m m m m m$$ u+~^ o 0 o m m m o 0 0 m m m m m m m m m m m m m m m
0 0 °o °o I N o
N z z z z z a W u> z z z> a z z z z z z z z z z z z z zzz N °0 0 o m m
c¢ a¢>> p o O O O O]] O] O] p O O p> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 too 0 0 0 0
z z z z z z z z z z z zz z z z z z z z z
-Pw~ cl m o o m m mmm m
w z z z z z z z z z z z z z z z z z z z z z z z z zz z z z z z z z z!z z z z z z z z z z z z z zlz z z z z z z z z z z z z z z z z z z z
a a a a a a a a a a a a a a a a a a a a a a a a a a a< a~a a a a a a a a a a a a a a a a a a as a a a a a a a a a a a a c a a a a a a 2 2 2
m m m m m N m m m m m m m m m m m m m mam m m m m m m m m m Nm m m m m m m m Eg m m m m m m ER m m
7 0 m rv m m o m° a
~0 co o m °m a -00- n m m N .n b N
m n v ~n co o m e ~n mnm o
-i °o °o °o °o °o o m rv. ^ m 0 0 0 0 0 0 0
a
O
a G 0 0 0 0 0 0 0 0 0 0 0 0 0 0 358 0 0 0 0 0 0 0 0 0 0 0 0 0 w w w w w w w w w w w w w w w w w w w w w w
m m m m a m m i a a i i u u
2 u uuu u u u u u u u u u u u u u u uuuu u
0 6 6 a a a u u a n o v o a a a a i d n a n i i i n
O m °u °u u u u °u °u u u u u u u u u °u u u u u u u u u u u uuu J J j u u u J J J$ J J J u u u u u___ uuu u u u u uu u u u u
m a uuuu u u u u u u u u u u u u u u u u u u u u u u u u u u
m mooom mm~mmv~ 'o .m. r"n n1°n °e,rvm 00 vei tOm
1'~i1 m m m m m n M`". v .m+ e m m m n n n o o m n m o vu'i v"'i m
> ~I b b VI t0 1C tG iG m 1v o N N
N O rv N V O Q< V m
Q
Q N N,N o 0 0 ° O O n 0 n n ^ O o~ 0 r 10 n G~ S° v°f a0 v°t V O n ~ m 010 rv O O O O O~ Q N v1 m~
.ti C O O O O OO.+
a
v o " o 0 0 d 0 " o " o
3 Q w w" i w w" d w" i u " m v v w v w d
a~ a v
Z w z a
z ° ° z
r>> z w z w z w z z w
> > z
z° z
r r> d z z°
r> >>>i z z
r r > > > > i r
m'
I
-O m m m a 1o m rv n m ee v'^i 10 .en 1mn 00 tO a"° m n e m a m a .n+ m °n m °e en 1eo 1°n a vni 1"n o r 10 en vrvi o n c e
n e
LLI E o e e e 6 .n e o v m vi 0 m N Q ni o m i v o rv
° m 1o m rv .n m m m e m m rv m o 1n n rv a, e m rv m o a+ m 1n
0 0 0 m m m o e m o rv n m m m m n m
e m °i A m e e o ~n o m m m m y m a m m m
'ozmmnmm"°'mNnomomO1m°~ .°.mem °~m ~~e 1"0o m.n m
mam m unimn nmem o omc a e
li m a
rv In o v om~
t o C 0 0 0 o C" O O o 0 m 0 0 0 o 0 0 0 0 0 o 0 0
$ m 0 0 0 0 0 0 .y o 0 0° 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
~1r m " m m
.Y o o rv eo o . o m o m It 00 11 m m ao m m m o m m m en iOm 1n n e n m en °n ne o m m 1$ n °n n n n n n n en n n n n n 1° n 1$ e m n n n n n 11 o. c 0 0 0 0 0 0 0 o o o c o 0 0 0 0 0 0 o 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 o c 0 0 0 0 0 0
u` o "
v
o. N m m m... o o m m .o N n n u+ n m m g n n o eo °o, n n n a m$ .e-~ °p m e S° m o° m °m °m
v " O o O m O " O O .w -i -o .4 O O
3
11 0 n" m o m m N m o °e n .°n m 1^ ^ m e 10 1o N~ m ° ° n o1o n m o m o " a, a o n m 'i
OI Om m 1c a w 1"o m .m-1 a 1n o rv n 1o m m m o m ."n o m n n n m m m m m o m m o m m ~ n n e v Wm w~ o 00.. .-o
.+o c o 00.. .+00.+0 00000000 o c 00 0.+000.: o c c 0000
"wmmmno'rvMnee mmmm mm m 00 e O0 m 1O mm °m°a$n°v mmrvm~l°omomgu°1i ml m."nammmnm rvem .°nn
10 1ti m aD oc rNi 1C < o ni v rv ni < rv vi c e
O d i a a a v v i i a v a s u d o w w d w u a a
q 4G t 't 'C 'C q 't 'C t q c" t 4C - 't t t
a ca 3
o a w u v i w i w
la
a E o 0 0
m e
. .m. °m a n o 00 o m n n N n
i o io n n n °m n o°. m m m o a o n m m m m m o m o
rv rv r rv rv rv rv rv e rv rv " rv rv " rv .r rv .w .r r ,y " o .r .y -
m 1n+S o rv .+o rv 6 rv rvc-i o o.-i -i 00000
0
n c
I
3
CI a m .1~-i o N c v°i e e b e v e a °o, °c n 1mn m v`~i n rv n n e n 1mn m m m rv n o 0 0 o m
q En Isom ovvve
a eva ei v o
r+oe adooo.+
m m ~ n n n ,y r m rv rv rv rv m rvrv rv rv rv rv rv rv rv rv rv rv rv" .oO rv rv rv rv rv rv rv rv rv
o
/y~ o
W d.~o~omov+~-+mnrvmrv ..rvrvnrvrv.vmnmrvrv.+rv 1 ~n v~r~mmm ..irvrvemmmn~n o u+arvrv..n$rym~1 mnomr.inrv.+rvmo
0888888888Soccoocoo nooo ccccoocc. c SS9q........co~ c S8oooq.....S8o88S8
_ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o o 0 0 0 o 0 0 o° o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
m mlooooooo~a~o ooooooo~oo~ o$e owe ~~ooooooe ~e~xx~~x~x~mo~exx~~~Na
= 010000 000 ,n~eooooo o,noooNO,'^,1 oon,oon °non`oe mlcenlo moon a mmlo to
W ° o 0 o v $ 5 a: x o b~ v o S o o o o v$ ae a: x goo ~8 ae g ge ae ae x x x a° o N A ae;e ~ x x x
0 0 0 0 0° 0 0 o 0 0 0 o O Q O o n 0 0 O N O M m N° o o O n y1 o o O n b b 1p ° n n o n 1n/f b o b" t0 m e e
o i
~~°xx xa°a
p e a°x.n ma ~~n °a° °xm° ~.n °xx^~~x~lae °an °xm° xoxoa°~me9a°m~ea°a°a°a°x
a m e a 10 °1 a °e iO rv a m ee e rv
al ~Im
> 1n m o m o rv m o m m o0 o m m l °v m o om m m e o m m N m
zmm lnomr`~.ion omnmrv mM o moomvmi rlOi .n.nmomm namomm.u"'i n
OI °n mo o m o vi o a m m ° o v1 a oe o m a v .4 c ~n oc o o 16 n 0' w m m m o v e ri o e of m m m v v a e e o a
r
~o n rv m m m m n
> m e m$ u°, m m o o n rv °o n °m m rv I °m °a, n n m 10 o v e o rv n o o " m 00 1°0 omm n a n° n m m 1. 11 1° ° n I m o
ozmovl °.c oc o of.... 0u+ od 'vm mvao0o°~ ,.ion we~airv uiv~ ovrv . i .
LL-o ~oooao m0orvmrym mNNm rv0com
° o o° ° S o° o oigi O o 0 0 0 0 O O O o° o o m o 0 0 o 8,8 .m. o- rv o° o n n o rni o 0 0 0 0 0 0' a o n a o 0 0 o m o o °O o 0 0" O o O"
O m m a mmm m m a° e o m .an Mme m a°° m m v m m v o v a v v v e e ee ,¢.i m a a Mim m a Nm N;¢ m N a ry a a m N N N m m m m m m N
adc1UOO0oac1~~c1uoc7dcro'ucfclclodo'oaoo 0000 od ao 0000000 ooa
'88822" an 1e m m o.. m.-.enm„1n~~.n mmooo°em min rvomN~nmmm .+r ..off
o °o 0 0 0 0 0 " 0 0 0 0 0 0 0 0 0
D o c 0 0 0 0 $ o 0 0 ° 0 0 0 0 0 0 °0 0 0 °o S g 0 0 0 °o Olo 0 0 0 o 0 o o 0 z .S 8 ~~5 f vmma° e m m
a a
P~dac~om0oaaado'Odd°aaclddo'd~'aadoooooooa aooooooooooa
o m
m 01 en n m o w m a n m a m o m m n o~
,r m ~"o o a v m a a m n. a v'^i .n. e rv n ° '°1" e m e °m H a N u' O1 a 1 1ntO i1 e v 1°o ml rv m o rv m m rv rv e m m
u u u u a a u u u u¢ u u u u d u u u u a u d u o. n u u u d u u u u u um u
d>> j>>>>>> u u U m m m u u u u U V v U u u u u u u u - °u u 'u °u °u °v °u u °u >
c
o- > > > > > > > > > > a > > > > > > > > ° > > > m o > > ° > > > ° > > > > ° > > > > > > > > > > > > > > > a
mm mmmmmmmmmmmm m m ,,,mm ,,,mm m'imm ,.,mmmmmmm
m m m ti m m m .m. O1 . m gym. o, m m m an", m m °o
« > > > > > > > > > > > > U' U' m l7 U' m >
" > " > m. U' U' V' U U' U' U' U' U' z z m l7 U' l7 l7 U' l7 l7 l7 a l7 U' z z z z n
0 0 0 0 0 0 0 0 0 0 'a o 'a 'a > > > > > > > > o > >i'a > > 'a a 'a 0 'a a a > > > > G > > > G > > > > > ; G > > > > > > > > > > > , , , ,
- z z z z z z z z z z z a a a a a a a a z a a f a a f z a
a a a a 0¢¢ a 0 a a a a o a a a a a a a a a a
c m
1., z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z
< < < a < a < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < a a a a a a a < < < < < < < < < < < < < < < < < < < < < <
n ~
m m m m m m N m m m m m m m m m N N m ti N m m m m m m m m m m m ~I~ m m m m m
~ O io o m~ 1n e e m N" rv pp rv o .n m ..e. o m n m o o ° m~ v o o m o° a rv m o mo m e m
Q ° 0 0 rv m M m m m m a vmi m m a a m n m m 00 m e e I- 1 0 v°i V b m m
M a a m
n
0
A G~ www ww 21 m- m- 21 1 Im Y ml ml Y -m ml I ml ml -m 21 Y 21 212 xY Y
° u u u u u u > > > > > > > > > > > > > > > > > > > > > c > ; > ; c > c > j > j > jz > ; > RINNI c c c c c c c c y2 2 o uuuuuuuuou y ~tuLr Ll Guwll,LLI U-1zwr L11 1111 L W
z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z
° ~ $ n o 0 1n n m, N n ~c ~o ~n
,a m' a m m o m m ~ n m m m m m m ~ v
v n n n o 0 o e eo n n n o n o 0 1°n vi io 1u n n o 0
ti c m
rv
Q
w°° ~ mo rv o m n o o$ o rv o 0 o mlo 0 0 0 0 o m 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0
~I ri G C O o .-i G ti G .i O -i .4 d o .N. .4 o o o° N
~4 -4
ti
3 a,r z i> z z i r z>>> r z> z i z i z
3
- a m O'-+ v"'i n °n m° a vmi o n$ 0o n m a n N o rv M o m a .m. m a a m 1O m m
_i E 16
.n ono a m M 0 M
a E rv e n m m N m 0 m n v rv o m o m n m m m o m o rv
m.n
o'z'~veimmaein din M IN-1-11 aan $S$ $om~me°n " m a
m a 1n ~ m m n m M a m
p o 0 0 0 0 0 0 0 0 0 0 0 0 O o O o 0 0 o m
O 0 0 0 0 °
O o 0 0 0 0 0 0 0 0 0 0 0 0 0
_ n n n en °n uei n n n e n$ n n m io $ n e ,'in $ e e ,rvn $ ,'iii ,n a$$ 1c n n n e o
a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c 0 00 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0
u o"
p
1° m rv o o .n m rv N m m o 1n n n 1o o 00 0 .e n
.X m m n n n m m v1 m a o1 m m m e . r°rv o o m a om m
.m. o
.
l o 0 0 0 o o o .i 0 a o 0 0 0 0 0 a o o 0 0 0 0 0 o~
3
m e< m N n n 1°n n °n n ao rv m 1eo nom vmi v'^i 10 o m 10° m n n n n$ m umi M m °m m m m m IS 11 m ° m
Q 0 0 0c 0 o c 000 0 o.:od 0 o.+i o 000 0 o'O o 00 0 00000000 0 m
00 00000
.Q n m o $ m m m °no $ m .n. 1n $ o ao m vrvi 00 .0n n °n n °a, .v'. o e iO o° n 1c
~I rv n v n
> mrv
g d a w w w i v a u
L7 It L - It It
ai a
E m °m o 0 0 0 0
m 0 0 0 o m o 0 o n n vnr m m m vni n uni vni a m m m o m o o m m °m °m m m o o
o 0 0 0 o c o 0 0 0 c o 0 0 0 0 0 o 0 0 0 0 0 0 0
0
a c
I
3
I, IN "I
~O io vni 00ee`" "10n
reyrv rvN$$rvommmrv mmm °o MO °m `~1On`{mo0om
-IErv
0
W w m in m m N rv o 0 0 1n o° o PieSe o
S
SSSo00000000000000000000000 0 0000000000
m m
4o e -m°4Ne23e~eCme2°e xxe ~m~ex~M~
_ °,e vm~v nau cce$ on v °m a°ov aO iO
X °
51 1 a
W ooamm o oo°$ °O ~XoXaC;~NO~~X~o,IaF efXmom°°~~$mm o v v v 4 vn; N m b O O~ I. I a
I
o M~ X 2° ~ o~ m~ m~ o N~~ n e~~~ N~ v m~ a vii a' m X w ~n m~~ r~.~i o~~ X v v~~ m m m a vni
i
z v m m o 0 0 o n o o m o 0 0 o m m n om. vrvi ° n° 0m n °m o rni o o °rv v o o v
-i ricooo°ov °o °o "noo ai of vi'oo $ 6n vi4 o 4m~oo°Oc0$
p c vrvi a o a o d e ~°n o o m m o 0 0 0 e e I a e a I o v 0 a o e 0 0 e c
r rv
I OR m rv rv rv rv rv rv rv IN rv rv rv rv
OZn ma9 aoS°OO, °~OO°o °o°o°o°o°o°o °o °'OO °o rmiom °.+I ~+O mm~no oo °m ~o rvw o°ooo of e
0 0 0 0 0 °o
C e Q G N
LL 1pn N N o N O p G a o 0 0 0 C 0 0 0 m in rmei N e N o
o O N 0 0 0 Go N
° m rv S O O p .rvi O Q° o O o .rv. Om 0 °1 O O rv rv rnn C O O e O O rv p Q rv0 O Om e0 8 o O° O O e°
z °z °z z °z 0 o z° f °z z
o a m a a a N m m miry a m m NIA N N m m m m m e m m m m m< a e a m a e a e
w 0 m rv rv rv m m m m vai
T II
d o a n 0 0 0 0 00 00 o f n a•dd0'a a 0d00O'00'mU0.O'D'd0•cr'acr
m m m rv o ~ m o n
°o n.~`m^rv°oooo o ..m,go°ag Z 2 Z 2 ZN N Z Z Z 2I
e m0o
0o oo000o d a ud a ocl-Or cfoo•~~y~
ro n v $ $ 1°c m m $ ^ m .°n 1°n °m rv o° a n 1^ a m $ m 1 1,
q u u u u u u u d u u au u ° a u o_
4>>> u - u - u u u u u u u 6 u d u U d u u u
d > > > > o > > o > > v o > u u u u u u u u u u u u u It
> > p > > > > > > > > > > > > > > > > > ° > > > > u u > > u
>
E
m m m m m m m m e m 0 0 e
agoogtim.°1. .01. m~~m mom m~m~^mam
W > 5 > > ; a > > > > G > > > > > > > > > 'a a a a a a' 'a a a a a a 'a 'a 'a w 'a a a a >a a >a
a F a a a a o a a a a a a a a a a f f f f
c e o
1.. z z z z z z zzz z z z z z z z z z z z z z z z z z z zzz z z #21nl z z z z z za a a a a a a a a a a a a a a a a a a a a a a a a a a a a a< a a as a
F f 0 ~ f f
10 01 ~o -0 1
w m e 1o n m 0 in rn o rv oo m o m m m m m
a a v"'i $ v e a m o o m v a v'"i e$ m o 0 0 0 .m. 1c m °m m m m m a a a m o a v
oc a.n mlo ioo
a - m 1n in .n vi m 1c m e m
o O O O O o° o O O O O° o° o o° O O p O O O
O O o 0 0 0 0 0 0 O 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0
rv 0 0 0 0 0 0 0 l CIO O O O O O O O O O O O O O O O O O O O
o G<<<<< c c c c Y x y Y` Y Y Y Y y Y 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 0 0
x s x F x x xx x x x . x H x x > I
x x x x x F F F x x x x
I I H N H ti ti ti ti H ti H F- ti F- H'i ti
> >
o ° n G G n n G w G w r„ G G G G G, G G G G w It > > > > > > > > > > > > > > > > > > > > > > o > H
0 0 0 0 0 0 0'.0 0 0 0 0 0 9 2 9 919 9 9 2 0 0 0 0 0 0 0
m izzzzzzz z z 2 z 2 2 2 z z zzzz z z,n „~I,,,
n
I
to ~ m o o N m o m N ~c Q o n ~o n m m m m e t ~ ~n m o ~ m Q o ui ~o m m m N m m n e o Q m e m I N is o~ m m io ~
o n o m m ry a N n m M m Q In o m m ~c e m .y io a e m m n o a .n O o ~n ~n m m e v o n n ko m o n n m m n n o o v~ N o
ti N O M N .y O O N O O N 0 0 0 N N O O O N N O O O O O O O O O o Q 0 o o N N O O O o O O O N .y 0 0 0 0~ 0~ 0 0
I
:p
Q
Y1 n N m M O N m N N lD v1 v1 O m tp n m m 0 ~/1 ti N lU n ~D N O e e n m O n N
o 0 N N w o n N n N n m n N N m N lp V1 Y1
v e N N M O o O .-I o O ~ O O O N O~ O rv N O O M N O O O O O n O O rv O O~~ O O ~ a O M Q n n
O O O .y O O O O 0 0 0 0 0 0 0 0~ 0 0 0 0 0 0 N o 0 0 .-I H O O o 0 0 O' O O O O O O O O O O O O O O O o 0 0 0 0 0 0 0 .y
I
Q
"O
QI
a
y Z j j 2 y 2 y z y z Z y> j z 2 Y Y Y Z 2 m m W N N w W N W W N W a W Z d W' N N W Z d z d a z Z
J. W J W d m O O v u d d w w w w~ v
3 > Y Y Y> Y> Y>> Y Y Y>> r Y> Y Y Y Y Y Y Y Z Z> r Y>>>>>>>
m
~ I
m
El m n N t0 M M M ~l1 m 0 e 0 V1 e m e O O e m O M M N N m .wnN M V1 ti .Ni n m t0 t0 ~R e m a Yl m o N n e
Qi N t0 V1 ~1 m
N n n o rv N m m o n m e n m M m m o rrv m n .-I N m a m m m umi In o Q Q m m~ e e m m N rv m M M m D n
3 m a^ e n M m n m .n m m a m m N m ~c o N N N M n m ~o n e m ~ o m N
~
LL ti ~ Q ^ e N lp n .i tD V1 O m 00 Ut q M n N ~O O lp M h n V1 n O~ m O N m ~D m n n N M Vl n Q ~O l0 O
.i M tp p lI N V1 ~ n 0 0 .i N N .-1 O m M rl N ri O M lp N O .y .y O N O N T lp m .-i O O N M M N v1 O .y N O O O .y N O .-i N .-1 N X11 Ih v1
J
a
E N N N m O m e lp m m m Q Vf M O n m .y O .'I N m m m N .y ti O m n O M 0 hlD o l0 O t0 m m M O O I m 0 l0 VI N fQ+f m n m N
Z e O n m n 0^ Vl m N O N m m ~ n m Y1 Q Q e m N Q 0 O m h m N O e m w O t0 ^ N I, to e m
N N M n Q O e n O M M O tl1 n 0 l0 ttl h m m m O n ^ O O O N N N lD m Q m m O Vl N V1 N m O e O
a1M M V1 m 0 M m N tp VI m vt t0 .y n m O n .-I O m O M n e e m n e O ~D lD tD O Q.m m 0 n N m ~O n h O n N Q e m t0 Q VI m O1 O n
p .y 0 0 0 0 0 0 0 0 .-i O O .i O .-I .y 0 0 0 0 0 0 .y 0 0 0 0 0 0 O O .ti O O .y 0 0 0 0 0 O .i 0 0 0 0 0 0 .y O
J
O I
~I
n
° M M m m m n tO N O M Q m N N O m m vl m m Q N m m O n O m m m m lD rv M 0 m N vl m m m .'I N .ei
M m 0 0 0 Q 0 .i O .i O O .y O ~ O 0 0 .-I lO 0 0 0 0 0 0 ~n V O O O N N N O O O .-i .-I 0 0lo 0 O O 9 o
O O m
_I O O O O O O O O O O O O o 0 0 0 0 O o O 0 0 0 o o o 0 0 o o 0 0 0 o 0 0 0 0 0 o o o 0 0 o o o 0 0 0 0 0 0 0 o 0 0 0 o o 0 0 0 0 o o 0
V -
6
a N~ 0 N n m m N m ~+f n~ e~~ m m m m~ in M ut e e m N^ O m~ tD N O n n 0 m .bi N .mi .Ni b N O ~O m~~ m ut m rv O m m O N~
O N M O O l0 O .a .i O O O O O N O O .y N O O O 0 0 0 0 0 0 m u1 O O O N O O O O O O O O M
1 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W OI M
m l 0 m V1 Q O m vt N m O N N m .'I O m m o m n e O N M M O M m O r-~ N n o tp ~O e m 0 .y m n 0 O e 0
L Q O1 Vl m O I N .4 O l0 N O~ VI O m Q O O Vl N lD O nO I~ OO t0 O
,n O O1 M O m Q 0p ~O N Q O n O .9 O O QO
r 1 Q a ~ N m M O M Q O N Q .y O Q ~p M m p O~ O O O O~ O O Q ~O ~D O e O O a0
-
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O N ~I. O O O O O O n N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Q O O O O O O O O O O O c o c a O O O O O O O O O O O O O O O O O O O o o O O O o 66666666
6 6 6 O O O O
Om n m m m Vf m m m I m m M m m tp m lO m Q N m .y m N M n l0 O ill O m o m U1 m m m I N O .-I N M O m 0 vl N O O e Q
N m M m I M n o w Q O n m m O m e n m V a m O m O 00 e 0 0 M N m O Q Q O a rvn y O m e O n O M
I m m o m o n .n o m n n n m M al, m e m o o m, ~c o In n n e N ry o m e n m o m Q m m
° p o e o 0 0 o 0 o rv o c 0 0 0 0 0 cc o° to M 0 o o 0 0 .I o 0 C 0 0 0
X o o 0 o 0 0 o o o 0 o o o o 0 M. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 c o o
W a
> M .y o 0 0 0 ~n M p m m o n o n m e n m m m ao 0 o in o
O V1 V1 lC tG LD 0 m m nn W M tp N M O O .i. .'I O .y N O O O N H 0 0 0 0 N N .y
m 71- tp m
d a d d d a a a a a a d d a a a d a a d a a a D .o a a a a a d a a a d a a d d d a a a a d a a a d d w w a d al a a d .o
4 't
3 J J J J J N 1/J1 VJf VJf VJi vJt to ' N ' N VJi ~ N J J J J IJ J `J J J J J Vf VJf J J h VJf ' N to to J J J N J J N N> j `J J J N J
t/i VI V1 N Vf N H N N H H H N N V1 H M N N N N H H h VI N
d d a d d a.a d d ddd a a d
a a a a d d d d d a a .d d a a d d d d~ a a d a d d d a d' a s d d i d
3 a a a w d d a a v N m a a v d v w w w a d w d d w a w v w d d as m w vi`
- a u` a LL LL a
v LL
m
El n n m m o LL LL m LL m e e m n o LL m o m n m N m e LL o o m m o LL m LL m n rv m m ~n m o ~n o m o in n o m m m m m 8
m m n m m o m io rv
a .y ~n m rv n m n m m m ~o m e m u' n m o m m o o ~o N o mo m o m o m m m m m m n p o
p m n n m N m m n O m h O e m N ~O U~ O O n t0 e 0 0 0 0 O O n m G O O N u~ O' N N O O O
LL to O O M O O O m O 0 0 0 0 0 0 0 0 0 0 m O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 m O 0 0 0 N 0 .y N O O O O O O O O O O O O e e
m
- O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O N N O O O O O O N O O O O O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O
f-
d ul N O m M m m N n t0 l0 O m N Q m M 0 0 m m lp m N N n Q m N N N m O m O e 0 O m m e O N m m n m O N a VI N
m N V1 n M1 m 0 N N Q M e n I M O t0 Vt n 0 O O O m Q Q I~ M M m m m N e m N n p N N O~ O
V1
p 0 N 0 0 0 0 0 0 0 0 0 0 O O O O O 0 0 0 0 0 0 0 N O 0 0 0 0 O O O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o S 0 0
O O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
m O O N N m m N m m m lD n m m tp m N m m n n m e .-i n m O N m e O ~/1 O N m e N N N H e
O N O m N m m M lp N m n m m m 0 ~l1 m e m
m N N m O n Q m m M N m V1 m m N ~G O m O Q N N e m t0 N
00 O m Q O m 1~ N N tD lp O m m N N l0 O M Q m m 0 0 .y .i m 0 m N „y m O n tp m e Q m 0 m n ~y m 00 01 V M .'1 e-i e
C N N e N M n N m N e .y m M e N m N N lp M .1 N e N H m M .y ~ ti i~ N m~ N N~ m b N .y a .I N N n N ~
a
l
CI e N Vl m m N m vt ~ m m N N ti m ti N N N~ m~ m m m m N N m m~ N m Vf N N N VI O N N m m m tll N m~ N O m
° N
N N N N N N
0 0 0 o ~o vl B o n n° m p o n o~ Q e~ ~v o ml 1 o n o o ~n ~c o o d o ~n e m III m ~n e m n o
N Q .i m m
O O O N M m O e e p m m ti O .-I e e O O~ O O O M O m m n n~ m n S x ~p O
x x x x S S x x g x x x~ x x x~ x x x S x x x x~ x x~ x~ N~ x= x n N x S x S x x x x xx S x S~~ x~
F O LL~~ LL~~~ LL~ LL N d O O LL~ 1~~~ LL t7i LL u u O m O LL Q LL~ n~ LL O LL d d O~ 0 0 d LL O O LL d LL 0 0 0 0 0~~ 0 tm+t
LL
.y n m O n ~n e m ~D m .r n Q rv O e rv n m O n 1D e 0 2 O m m O O of Q n ~p m m ~D rv e
~ ~ N Q e e ~ 2~ e 2 S 2 S S m M M N N 00 N ~ S= tp ~O t0 tp O n n 00 m n n n n 0 0 =
Ix x x x x S S x S x x x x x x x x x x x x S x x x S x x x x x x x~~ S x x x~ x x x x x x x x x S S 2 x g~ x
~i 0 0 0 O O O O O O LL O O O O O O O O O O O O O LL O O LL O 0 0 0 0 0 0 I~ O O LL O O~ O O LL LL O O O O O LL O O O l m M O LL
° I
-I
~ o m Q ~n m n m map N Q in m n
~ m n m m N Q o N M ~o n m o N ~n m n m m N a ~o n m o rv~ m a n m o 0 0 0 0 0 0 0 0 .Mi .i .r
F N Q tl1 lD m m rI N m m ~O ~G tp tD lG ~D n n m m m m m mN m m m m m
~>>>>LLOLLOLLLLLLLLLLLLLLLLLLLL>>>>>>OLLLLLLLLLL~LL>>OLLLLLLLL>> » » >LL>>LLLLLL>> » >>>O'LLLLLLLL
a
~I
o c n o o m
o..N000~n
y~ 0 0 0 .y N
Q
SI
t
n ~ g n ~ ~ m
m ~noa~
oo.+oooo
v
a
al
°1 0
" Z m m m m
3 r i r r r
m
m
EI m o ~ ~
m vl e rv
O O O O~ N m
ul N N O O m
d
a
E l0 N N O m
Z .'I n O n M
~I ~ ti 'mvf O O O
~ O ~ O O .y
O
~I
n
o
_lo oooo0
V
I
~n n tD O u1 Ot
O O O m V
10 O coo.
m 3
Om n N o n
L c o 0
r 11 i~ o ~n M
Olo O o O n
M ~ o0 0 C. 0 0
Y.1 m ~O N O O O~ ~O
1 N ~ W O~ m
X o,.~ O o ~n
UI 0 0 0 0 0 0
LU
a
~ N of S e u~i
u0 rl N N G M
N
~ U N d N W d
F t 44 't 't 'C
-4
o v a a w w
m a v m a
m
31 ~ ~ a o ~ a
m a o 0
LL O o o .n+ o
_ x 0 0 0 0
0
r
m o. o
pox ° . o 0
0 0 0 0 0 0
x 0 0 0 0 0
r
LI n m rv ~ m
rv n
m m ~n n o v
c m ~
a
c_
n
DJ O O~ .Ni
O O O N
O
d O m LL~ 0
u ~ Z u
Z
~ m N x a
~xxx~+x
I
LL ~ u
0
I
oc m m m a
S .y N N
w S S~ S S S
,
N
J
ILI
W o
'i - a
5 ~ ~r~ I J O
\S t t 93 aoT d a
E
V,
,h 3
w C
O d=~
N cy.~g M in
uj el
r 7 O
Q N m
e n~
O N
CL E
W w : l o ~h s bz ,a C
IT,
Q y i'' t 8LR K~ j / m
W 8 i„1`~ w
O'D
Z ~aS V U
- r
70% cc
1 \
W
♦ ~ _ t 'S F
W ° a
♦ r ~ > c
m
U ~f ~a
W
JY 1~ a
U) m
CL)
O e ♦ /
M N
W r ' q'~.; ♦ vim'` a +L'
V C
~N
Yg ~ /
d
W
W m a
i~ r f
Ml,
W \
N' E
c
/ O d
N
N U
W \
76
\ m
Z \ ?<C \ N
cri
W
W > >
N
J_
H
W
T
CL
Q / °1
a~
z) -2
J O
C U ~
C \ co
G mN
(L) Cc
a a~Ei
v J o
> c
Vr I f c E
Z ~ \ N
m
C, CU
_O E
a> m
W ' U c
tz a.
J r ~UCo
U) Co
_ r ♦ ♦ ♦ '.~C
m O
W
n C
\ o°
_ X LE
-Da
Q
W a~ CU W
E
N M
W / w
C U
°i E
CL)
\ O O
° C
l r,~4i
. ~ ~ ma
75
C c , L)
mw
\ N m
~W I t ` rW 7 w
p
CV)
W
r%
'V f.; n t12 _ m ~ _ ~ a
L) L)
my
°
W - 7r~ v '
N
y ~ C
c
0.1
O \ E
Bt i ,
U m
V ~a
W ♦ c
loll
J
CD M
N
2 r< ~ ` ~ E
n
w
N E
V1~ E
Cl) V, C°~.E
c
x:F
d
_J o
o o
C
o
W
m
N
/~^k Cl.
v y~.,• 5
LL
\ ti~ O N o
m
ti N c
au
0 c ( i' m E
c a
E
Q O~ O __m
Cl)
W,
J
J ~o \ \
0 g~ \
w
a ~
-1 a
J O
U L)
a
w O
y (p
U) E
f _ C
V 8 f" Zl 'i a> a
00
♦ N M
v
LLI
~ ~ ; r~ ♦ nE
W :
co a)
00 am m
m
zi N - ~ ~ ~ t_-~~ O O P
r N
W m
75
M 19 ca
m
NO
Z ~
N { \ 2[ - N y
{
m
w
w
X
1 ri 9
,
U h u>
WA
~j _rT