HomeMy WebLinkAboutSewer Report* C1VIL DEVELOPMENT, Ltd.*
CIVIL ENGINEERING & DESIGN-BUILD SERVICES
P.O. Box 11929 · College Station, Texas 77842 · Phone: 979-764-7743 · Fax: 979-764-7'tf,. qO
November 1, 2006
Mr. Alan Gibbs
City of College Station
P.O. Box 9960
College Station, TX 77842
RE: Arrington Road Sewer Study
Dear Alan:
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Accompanying this letter is a copy of a report entitled "Arrington Road Sewer Study". This study was
commissioned by Mr. Salim Ismail, who is the owner: of a large section of property in the vicinity of
Greens Prairie Road, Arrington Road and SH 6. The purpose of the study was to analyze options for
providing sewer service to a portion of hi s tract at the intersection of SH 6 and Greens Prairie. I am
providing a copy of this report to you and requesting input regarding the findings presented in it. I am
also sending copies to Spencer Thompson and David Coleman.
As you will see, the report concludes that the most advantageous option for Mr. Ismail is to extend a line
from the existing line at Greens Prairie and New Arrington Roads, though property that Mr. Ismail owns
to the subj ect property at SH 6. This option does not coincide with the City's master plan for that area,
however the existing 8" outfall line at Greens Prairie Road has sufficient capacity to serve the subject
property as well as all other areas that it was originally intended to serve. This option is also significantly
less expensive than the alignment shown in the City's Master Plan.
After you have an opportunity to read this document, we would like to schedule a meeting to discuss the
findings, your comments, and our ava ilable courses of action to provide sewer service to Mr. Ismail ' s
property. Please call me once you ha ve compl eted your review. Thank you.
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Kent Laza, P.E. 0--
ProJect Manager
attachment
xc: Mr. Spencer Thompson
Mr. David Coleman
Mr. Salim Ismail
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Jan 11 07 01:27p Ginger Urso 979-764-7759
Water System Flow Test Report
As-Built Verification
Date: January 11 , 2007
Water System Owner: Wellborn Special Utility District
Development Project: Greens Prairie Center, Phase 1
Flow· Test Location: New fire hydrant at Greens Prairie/Arrington Rd intersection
Nozzle size (in.): , ---~ Discharge Coef: (c): 0.9 ----
Pitot Reading (psi): 64 2 ,,., Flowrate formula: Q=29.84cd p -
c = discharge coef.
d =orifice size (in)
p = pitot pressure (psi)
Flowrate (gpm): 1342.8 computed --------
Pressure Guage Location: Ad.jacent residence (1775 Greens Prairie Rd.)
Static {psi): 72
Residual (psi): 71
Report prepared by:
Kent Laza
printed nwne
Others present: Steven Cast
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Jan 11 07 0 1 :2 7p
l
Ginger Urso 979 -764-7759
Greens Prairie Center, Phase 1
Water System Analysis -As-Built Verification
January 11 , 2007
Pipe Summary
Label Length Diameter Material Hazen-Williams Discharge
(ft) (in) c (gpm)
P-1 124 12 PVC 150 2,558.00
P-2 253 12 PVC 150 58
Junction Summary
Label Elevation Demand Hyd raulic Grade Pressure
(ft) (gpm) (ft) (psi)
GPC1 01 300 58 461.43 69.84
GPC1 FH1 301 2,500.00 461.44 69.41
p.3
Velocity
(fVs)
7.26
0.16
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