HomeMy WebLinkAboutCain Rd Sewer Issues(3/9/2011) Bob Cowell -Fwd:
From: Stephen A. Maldonado
To: Cowell, Bob
CC: Coleman, David; Surovik, Fred
Date: 3/9/2011 2:57 PM
Subject: Fwd:
Attachments: Slingshot.txt; Peak_Dry _Weather_ Capacity _2010_condition. pdf;
Peak_Dry_Weather_Capacity_2030_condition.pdf; Peak_Dry_Weather_Capacity_BO_condition.pdf
Bob,
Please find attached the future line maps we received today from HOR. Dave, Fred, and I went over
them this afternoon and we're thinking that it may be best to sit down and discuss/explain with you and
your staff.
Would you have time this week/next week to discuss? We can have the meeting here or there,
whatever's most convenient for you all.
Thanks!
Stephen
>>>
From: "Miller, Sharon" <Sharon.Miller@hdrinc.com>
To:"Stephen A. Maldonado (Samaldonado@cstx.gov)" <Samaldonado@cstx.gov>
CC:"Dunn, David" <David.Dunn@hdrinc.com>, "Whitfield, Tina" <Tina.Whitfield@hdrinc.com>, "Wood,
Bryon K." <Bryon.Wood@hdrinc.com>
Date: 3/9/201111:37 AM
HOR Employees:
Use the "Download Attachments" button after opening this message in Outlook to download attached
files.
Non-HOR Recipients:
If you are not an HOR employee and this is your first time using Slingshot click here (
https://Slingshot.hdrinc.com/CFSS/amlogin/resetpwd.jsp?Flag=l) and follow the prompts to set your
password.
Returning users click here to Download (
https ://SI ingshot. hd rinc.com/ CFSS/ control?view=a m/sta rt.jsp&action =ava i I .am&RequestID= Fl 13900003
22) (files: Peak_Dry_Weather_Capacity_BO condition.pdf; Peak_Dry_Weather_Capacity_2030
condition.pdf; Peak_Dry_Weather_Capacity_2010 condition .pdf;)
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Stephen:
Please find attached the capacity maps for the existing condition (2010), 2030 and build-out. You'll
notice graphically, you won't see much difference between pipe capacity in the 2030 and BO output.
Page 1
3/9/2011) Bob Cowell -Fwd:
To help you understand why, we summarized below the number of pipe segments, and length of pipe
that has capacity issues. There is a big increase from 2010 to 2030, but not as much from 2030 to build-
out.
d/D
q/Q
d/D
q/Q
d/D
q/Q
Over 80°/o
Over 800/o
Over 800/o
Over 800/o
Over 800/o
Over 800/o
SEGMENTS OF PIPE
LENGTH OF PIPE (FT)
LENGTH OF PIPE (MI)
2010
38
60
8770
14820
1.7
2.9
2030
357
446
99330
113050
18.9
21.5
% increase from 2010 to 2030
89%
87%
91 %
87%
91 %
87%
Build out
391
507
Page 2
(3/9/2011 Bob Cowell -Fwd :
106350
131410
20.2
24.9
% increase from 2030 to BO
9%
12%
7%
14%
6%
14%
When I did the WW Demand Analysis, the percent growth for CC was 2.6% and for LC was 6.5%.
Projecting to the future, the BO LUE numbers are reached by 2040 for CC and 2038 for LC,
approximately for the area shown on the map.
Please keep in mind that Lindsay provided 2030 LUEs per parcel for the future growth areas. She would
not provide them for the existing service area on a per parcel basis. She did provide an estimated 2030
LUE per sub-basin; however. Knowing the acreage of the sub-basin, we took the LUE sub-basin/acreage
of sub-basin to get an "average" LUE/A. This average LUE/A was then applied to each vacant lot.
The future extensions are included on the 2030 and BO maps, with listed pipe diameter (inches). These
extensions were designed for BO condition so that is why the diameter is the same on each map.
We were able to remove a couple of proposed future LS, so we are down to 10 future LS.
Our next step is to perform design runs to see what the difference in is diameter for the existing pipes
for 2030 and BO conditions. These tables and maps will be included in the TM. I just wanted to give
you these maps per our discussion last week.
Thanks,
Sharon
Sharon M. Miller, P.E.
Project Manager -W/WW Group
HOR ONE COMPANY I Many Solutions
17111 Preston Road, Suite 200 I Dallas, Texas 75248
P: 972.960.4437 I I F: 972.960.4471 I sharon .miller@hdrinc.com
www.hdrinc.com
Page 3
Bob Cowell -Cain Road area sewer issues
From:
To:
Date:
S~bject:
Bob Cowell
David Coleman; David Neeley
2/15/201111:53 AM
Cain Road area sewer issues
David and David,
Page 1 of2
We are still pulling this information together, but here are some of the preliminary data for development in this
area.
Projects under construction and/or received certificates of occupancy since sewer monitor
readings
Campus Village Ph 1 -194 units/627 bedrooms
LakeRidge Ph 1 -41 units/148 bedrooms
Projects with zoning/platting/site plan approval {meaning they could request building permits at
any time)
Lakeridge ph 2,3,4 -171 unit/628 bedrooms
Callaway Ph 3 -160 units/640 bedrooms
Knightsgate -60 units/132 bedrooms
Great Oaks -32 Single-family lots
Buena Vida -60 Single-family lots
Projects with zoning/platting approval awaiting site plan review and approval {these projects are
likely to come on line in 2012)
Cottages -1,088 units/4,352 bedrooms
Copper Creek -74 units/88 bedrooms
Campus Village Future Phases -308 units/1,054 bedrooms
Projects seeking zoning {not yet entitled, but if entitled by Council projects are likely to come on
line in 2012)
Harvey Mitchell Apartments -26 units/at least 42 bedrooms
University Acres -286 units/at least 572 bedrooms
Barracks II -144 single family homes and 314 units/ at least 628 bedrooms
Units/Bedrooms on-line immediately = 235 units/775 bedrooms
Total Units/Bedrooms that could be on-line immediately = 1,026 units/3,321 bedrooms
Units/Bedrooms likely on-line in 2012 .= 1,162 units/4,440 bedrooms
Total Units/Bedrooms that could be on -line in 2,012 = 1,932 units/5,826 bedrooms
This means that between the time the monitoring was completed and August 2012, we will most likely
add 1,026 units with at least 3,321 bedrooms and could add as many as 2,240 units with at
least 6,880 bedrooms.
In case anyone was wondering, about 744 of the 2,240 units and 1,344 of the 6,880 bedrooms can be
associated with the "new" comprehensive plan. All other units and bedrooms were consistent with the "old"
comprehensive plan.
file://C:\Docurnents and Settings\bcowell\Local Settings\Temp\XPgrpwise\4D5A694ACity ... 3/2/2011
Page 2 of2
Again, we are still collecting data and will have a more complete soon for our continued discussions about how
to best manage this issue. If you have any questions or need additional information please let me know.
Thanks,
Bob
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