HomeMy WebLinkAboutWater and Sewer Report08/28/08 2:54 PM Page 3 FROM :JF FONTR!t4E FAX NO. :19037297310 '. I Aug. 26 2008 11: 52AM P2 . _ .. _ .. _ -· Exhibit A Water System Flow T~t)Re_nort I Datt: lnJy 16, 2008 \ W•tcr System Owner: Wdltoni 8podal UdJftr·JMm:Mt I Dcvelopmcm Prajeot: Flow Tat Lammon: .·· ", ' .. ~ ... . ' . Nozzle 81,-,e (in.): Pitot Reading ·(psi); 5$' FloWl'8M (gpm): U~ computed '•bdirilloQ I I &.9 -' :ate fonn.ula: Q~9:·84cd2-p112 c-dfao&nrgc'coet: I d • orlfioe ir.le ~~ p:-= pifoJ-p~Tw (palY Preuuro Guagc Lo<iation: tel Sa ••• Stade (psi); 61 --Residual (pai): ____ 45 ---Report prepared by: P~W<A =~ ,,_, Othm'a preacmt: _·Stm!.....__c __ • __ ,....,--.. __ _ 800 'd 09Gl 069 6L6 ·oN XV;l I Note.-111/s jlo1~ t•~r (Ind 1·1ptm 111•1-. ~d I~ QQCOrdan~ with N:l!PA 29/. . / ! 1·003 · N~o8113M oiAi?o~ . -.... ~·i~Lf5' nd or:£~ OH i soc~-u'1i nt,c
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PROPOSED SANITARY SEWER LINE
FOR LOT 7, BLOCK ONE
AND ALL OF BLOCK TWO
ROCK PRAIRIE WEST BUSINESS PARK
COLLEGE STATION, BRAZOS COUNTY, TEXAS
JOB NO. 000347-4080
AUGUST 2008
Eight inch sewer mains will be installed throughout the proposed that will connect to existing
offsite sanitary sewer lines. The 5 lots will be serviced by proposed 8" sanitary sewer along
Rock Prairie Road W. the 919 feet of 8" SDR wi II have a capacity (80% full) of 0.506 ft3/s. The
five lots will produce less than 0.506 ft3/s at peak flow even at a rate of 0.045 peak flow. Details
are shown in the attached table.
Adams, Taggart and Associates
2551 Texas Avenue South Ste. A
College Station, Texas 77840
Phone: (979) 693-5359
Fax: (979) 693-4243
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Sewer Size Calculations
Daily Wastewater Flow per lot
Total Number of Lots
Average Daily Wastewater Flow
Peaking Factor
Peak Daily Wastewater Flow
I nflitration
Total Wastewater Flow
Total Wastewater Flow
Total Wastewater Flow
Slope at Collection Point
Diameter
Manning's n
Capacity
Capacity (80% Full)
Total Wastewater Flow
Capacity > Total Flow
References:
OK
100 gal/day/lot
5 lots
500 gal/day
4
2000 gal/day
27000 gal/day
29000 gal/day
20.14 gal/min
0.045 ft3/s
0.009 ft/ft
8 in
0.013
0.633 ft3/s
0.506 ft3/s
0.045 ft3/s
1. Bryan/College Station Unified Design Guidelines-Sanitary Sewer
Note:
Infiltration 750 gal/acre
36 acres
27000 gal/day
Engineer believes estimates of peaking factor and infiltration rate are quite excessive. However,
these values were used in accordance with College Station Unified Design Guidelines.
1 "''I"
Engineering Estimate of Costs@ 100% Design
Proposed Sanitary Sewer Line for Lot 7, Block One and all of Block Two
Rock Prairie West Business Park
College Station, Texas
Proposed Sanitary Sewer Utility Service
It N It em 0. em Q "t uamrv u "t m
1 Standard City of College Station San. Swr. MH (0'-8' Depth) 2 EA
2 8" Diameter SDR26-3034 PVC San. Swr. Pipe (5'-7' Depth) 920 LF
3 Traffic Safety Siqnaqe
4 Trench Safety
5 Tie into Existing Manhole
6 Add drop to Existinq Manhole
7 Mobilization
Adams, Taggart, and Associates
Lenwood S. Adams, P.E.
Managing Principal
1 EA
920 LF
1 EA
1 EA
1 EA
Total Construction Cost:
Construction Contingencies 20%
Total
Engineering & Suryeying Fee 18%
Grand Total:
u "t p . m nee
$2,500.00
$26.00
$500.00
$1 .00
$500.00
$1 ,500.00
$4,000.00
Total
T t I oa
$5,000.00
$23,920.00
$500.00
$920.00
$500.00
$1,500.00
$4,000.00
$36,340.00
$36,340.00
$7,268.00
$43,608.00
$7,849.44
$51,457.44