HomeMy WebLinkAboutWater ReportWater System Report
for
Castlegate II Subdivision, Section 201
College Station, Texas
December 2011
Prepared By:
Phillips Engineering
4490 Castlegate Drive
College Station, Texas 77845
(979) 690 -3141
TPBE FIRM #13130
44,17377N
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General Information
Fire Demand:
Fire Flow:
Pipe: PVC DR -14 C900
Roughness Coeff 150 (Hazen Williams)
Hydraulic Software: EPANet v.2.0
Existing City System Pressure Tests
Flow Hydrant #: V -037 (Camber @ Victoria)
Flowrate: 1430 gpm
Static Hydrant #: V -047
Static Pressure: 85 psi (196 ft water)
Residual Pressure: 77 psi (178 ft water)
Water System Summary of Section 201
Conclusion
Min. Pressure - fire (psi)
Max. Velocity (fps)
Max. Length of 6" (f)
(connected to > 8 "on both
Max Length of 6" pipe (ft)
(not connected on both ends
Max. Length of4 "pipe (f)
Castlegate II Subdivision, Section 201
Water System Report
The Castlegate II Subdivision is a 202 -acre residential subdivision being developed immediately southwest of
the existing Castlegate Subdivision in College Station. The recently approved Preliminary Plat shows a total of
629 lots in the whole development. Section 201 is the second phase to be developed in the subdivision and will
contain 40 lots. It is located immediately south of Section 200.
Design Criteria
Primary Water Supply: Existing 8" line on Odell Drive in Section 200
Domestic Demand:
Avg. Pop Density: 2.67 people per lot
Average Flow: 100 gpd/cap or 267 gpd per lot = 0.18 gpm per lot
Peaking Factor: 4
Peak Flow: 0.74 gpm per lot
Design Flow: 1.50 gpm per lot
1000 gpm at most hydraulically remote point
Applicable Exhibits: Exhibit A — College Station Utilities Flow Test Report
Exhibit B — Section 201 Water System Layout
Exhibit C — Section 201 Water System Analysis (Fire Flow Conditions)
Criteria Required
20 59.8 J201 -7
12 11.6 P201 -4
1500 1 NA
800 359
500
Results from the EPANet analysis indicate that the planned system in Section 201 will exceed the minimum
requirements of the BCS Design Guidelines and the State of Texas.
1
As
Designed
315
Location
Date
Time
Test
completed by Justin Tamplin
Witness
Location
Nozzle size
Flow hydrant V -037
Pitot reading 77
G.P.M.
Static hydrant V -047
Static PSI
Residual PSI 77
Comments
Tuesday 24 August 2010
11:00 A.M.
Vincent Rodriguez
4228 Camber
2.5
1430
85
Exhibit A
College Station Utilities Flow Test Report
REQUESTED FLOW TEST
College Station Ut
Reliable, Ai rdable, Cmmumty Owned
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CASTLEGATE II SUBDIVISION
Water System Analysis - FIRE FLOW CONDITIONS
December 22, 2011
EPA Net PIPE SUMMARY
Label Length Diameter Discharge Velocity
ft
145
681
126
966
327
520
384
305
310
in
8
12
12
12
8
8
6
8
8
gpm
641
641
641
-215
832
285
285
-563
315
ft/s
4.1
1.8
1.8
0.6
5.3
1.8
3.2
3.6
2.0
Pipe P200 -1
Pipe P200 -2
Pipe P200 -3
Pipe P200 -4
Pipe P200 -5
Pipe P200 -6
Pipe P200 -7
Pipe P201-1
Pipe P201-2
Pipe P201 -3
Pipe P201
Pipe P201-5
Pipe P201 -6
Pipe P201 -7
Pipe P201-8
Pipe P203 -1
Pipe P203 -2
Label
Junc J200 -1
Junc J200 -2
June J200 -3
Junc J200 -4
Junc J200 -5
Junc J200 -6
Junc J201 -2
June J201 -3 ,
Junc J201 -4;
Junk J201 -5
Junc 7201 -6
June J201 -7
Junc J20; -8;
Junc.J201 -9
June J203 -1
Junc J203 -2
Junc J203 -3
Exhibit C
Highest Velocity in Section 201 11.6
EPA Net JUNCTION SUMMARY
Elevation Demand Calculated
Pressure
Lowest Pressure in Section 201 59.8
ft
312
314
321
321
319
329
333
334
328
0.0
0.0
0.0
24.0
24.0
0.0
0.0
33.0
30.0
ft
493
492
491
491
488
489
493
491
491
psi
78.3
77.1
73.8
73.8
73.2
69.2
73.0
73.2
71.9
70.7
60.7
59.8,
69.2
68.2
70.5
0