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HomeMy WebLinkAboutWater ReportWater System Report for Castlerock Subdivision College Station, Texas September 2006 Prepared For: DDH Investments, Inc. 4490 Castlegate Drive College Station, Texas 77845 (979) 690-7250 Prepared B Civil Development, Ltd. 2900 Longmire Dr., Suite K College Station, Texas 77845 (979) 764-7743 Ills -10611 GENERAL INFORMATION Location: The Castlerock Subdivision is located on the south side of SH 47 in southern College Station near Arrington Road. Area: Phases 1-8 = 76.6 ac. 295 lots Land Use: Single Family Residential WATER SYSTEM ANALYSIS (Phases 1-8) Desil4n Criteria Domestic Demand: 100 gpd per capita System Analysis Criteria Required Provided Min. Pressure - static (psi) 2.67 persons per lot 94.95 267 gpd per lot Avg. Denzand: 0.185 gpm Peaking Factor: 4.0 Peak Denzand: 0.74 gpm Design Demand: 1.5 gpm Fire Flow Demand: 1000 gpm (at the most hydraulically remote location) Pipe: PVC DR -14 C909 Roughness Coeff 150 Hydraulic Software: Haestad Methods Water CAD v.6.0 Prinzaty Water Supply: 24" line along SH 47 Existing City System Pressure Tests Flow Hydrant #: V-064 Flowrate: 1430 Adj. Hydrant #: R-030 Static Pressure: 102 psi (235 ft water) Residual Pressure: 102 psi (assume 100 psi or 231 ft. water) System Analysis Criteria Required Provided Min. Pressure - static (psi) 35 94.95 Min. Pressure -fire (psi) 20 89.23 Max. Velocity (fps) 12 8.81 Max. Length of 6 "pipe (ft) 1500 1108 (connected to > 8 "on both ends) Max Length of 6" pipe (ft) 800 256 (not connected on both ends Max. Length of 3 "pipe (ft) 500 438 Applicable Exhibits: Exhibit A — City of College Station Fire Flow Test Report Exhibit B — Water System Schematic Layout Exhibit C — WaterCAD Model — Domestic Flow Conditions Exhibit D — WaterCAD Model — Fire Flow Conditions Conclusion The water system for Castlerock Subdivision Phases 1-8 meets or exceeds all of the design criteria for the City of College Station. It will provide adequate water pressure and ilowrate for both domestic and fire demands. 1J❑ CD r-' Cast(erock Subdivision Phases 1-8 Water System Schematic Layout 3J02 l- I V V J V --.� V L I I 1 -H2 CJI 61 12/20/2005 09:37 FAX 979 764 3452 COLLEGE STATION PUB.UTL. Co�llege Sta ion utilities Reliable, Affordable, Communhy 0wned 1601 GRAHAM ROAD COLLEGE STATION TEXAS 77845 Date: 19 DECEMBER 2005 Number pages including cover sheet - 1 Fax number: 764-7759 Attention: JOE SCHULTZ Company: TEXCON From: Butch Willis Water Wastewater Division Phone: 979-764-3435 Fax: 979-764-3452 FLOW TEST REPORT Nozzle size: 2.5 inch Location: CASTLE GATE AT HWY 40 Flow hydrant number: V-064 Pitot reading: 73 (GPM): 1430 Static hydrant number: R-030 Static PSI: 102 Residual PSI: 102 10001 Exhibit A Exhibit C Castlerock Subdivision, Phases 1-8 Water System Analysis - DOMESTIC FLOW September 1, 2006 Water CAD JUNCTION SUMMARY Lowest Pressure = 94.95 Nearest Fire Hydrant (i; IF111 fixhibit C Computation of Lowest Pressure Calculated Label Elevation Demand Hydraulic Pressure Grade it ft psi IFHI 291 0.00 522.11 99.99 1171-12 290 7.50' 522.12' 100.43 1FH3 296 0.00' 522.35 97.93 1J02 297 0.00! 522.46'1 97.54 1J03 302 0.00' 522.45! 95.38 1J04 303 0.00' 522.45', 9495 1J05 293 9.00' 522.36' 99.23 1J06 296 4.50 522.43' 97.97 IJ07 293 39.00 522.19! 99.16 1J08 292 42.00 522.1; 99.55 1J09 291 0.00'' 522.11' 99.99 1710 297 0.00' 522.2' 97.43 IJO1 290 0.00' 522.48 100.58 2FH1 283 0.00' 522.07 103.43 2FH2 286 0.00 522.07, 102.14 2J01 288 6.00,, 522.08! 101.28 2J02 288 6.00 522.07 101.27 2J03 287 22.50 521.42' 101.42 2J04 283 0.00' 522.07 103.43 2J05 283 0.00'; 522.06; 103.43 2J06 283 4.501 522.051 103.43 2J07 284 0.00' 522.05: 102.99 3FH1 281 7.50 522.01 ! 104.27 3FH2 282 9.00' 522.01' 103.84 3J01 282 3.00 522.03 103.85 3J02 273 25.50 521.25'; 107.41 3J03 280 15.00' 521.88' 104.65 4J01 279 12.00 522.01, 105.14 4J02 280 19.50 521.61 ! 104.53 5FH1 282 6.00' 522.01' 103.84 5FH2 286 57.00 522.01', 102.11 5J01 283 7.50 522.01 103.41 5J02 280 9.00 521.96 104.68 6FH 1 288 9.00 522.03' 101.25 6J01 291 48.00 522.03 99.95 7J01 291 9.00 522.05 9997 7J02 294 40.50 522.09 98.68 8101 299 24.00 522.18 96.56 Lowest Pressure = 94.95 Nearest Fire Hydrant (i; IF111 fixhibit C Exhibit D Castlerock Subdivision, Phases 1-8 Water System Analysis - FIRE FLOW September 1, 2006 Exhibit 1) Water CAD JUNCTION SUMMARY Computation of Lowest System Pressure Label Elevation Demand HGL Pressure ft _ ft psi 1 FH 1 291 1,000.00 502.84; 91.65'. 1 FH2 290 7.50 506.03' 93.47'. 1 FH3 296 0.00 508.42 91.91; 1J02 297 0.00' 509.32! 91.86', 1 J0 302 0.00', 509.30 89.69'. 1 704 303 0.00' 509.241 89.23', IJ05 293 9.00' 509.031 93.46' IJ06 296 4.50'' 509.10 92.20 1J07 293 39.00', 506.92' 92.55', 1708 292 42.00' 505.27' 92.27'' U09 291 0.00 505.37' 92.75! IJ10 297 0.00; 506.841 90.79, 1 JO 1 290 0.00' 509.501 94.97 !. 2FH 1 283 0.00' 505.73' 96.36' 2FH2 286 0.00 505.45' 9495'; 2J01 288 6.00 505.841 94.251 2J02 288 6.00' 505.84' 94.25 2J03 287 22.50' 505.19! 94.40' 2J04 283 0.00! 505.73! 96.36 2705 283 0.00; 505.61 96.31; 2J06 283 4.50 505.61; 96.31 2J07 284 0.00'; 505.501 95.83. 3FH1 281 7.50 505.49 97.131; 3FH2 282 9.00' 505.49, 96.69: 3J01 282 3.00 505.49', 96.70; 3J02 273 25.50' 504.73', 100.26' 3J03 280 15.00 505.361 97.50, 4J01 279 12.00 505.47 j 97.98 4J02 280 19.50 505.07' 97.38' 5FH1 282 6.00' 505.51'; 96.70, 5FH2 286 57.00' 505.53 94.98! 5J01 283 7.50 505.50, 96.26'; 5J02 280 9.00 505.45' 97.54'' 6FH 1 288 9.00 505.64' 94.16' 6J01 291 48.00 505.41', 92.77' 7J01 291 9.00 505.96' 93.00! 7J02 294 40.50' 506.24 91.83' 8701 299 24.00 506.85 89.93 Lowest Pressure = 89.23 Exhibit 1) Discharge Velocity 891.45', 551.05: -624.76, -776.69'' 223.31 -265.31. -461.95: -537.55'. -537.55 9.00' -189.1411: 121.64 -28.50; 22.50'. -154.64 0.00 154.64 4.50! 150.14'1 91.81: -58.32' -23.82 25.501 -9.18 -15.00 31.501 19.50 -33.18', -9.00' -49.68 -55.68' -29.831 -142.50 -78.301 -30.30; 229.80; -238.80 -279.30 -12.61! 36.61 i 1442.50 1442.50' 1442.50 891.45 891.45' Highest Velocity (entire system) = Highest Velocity within Castlegate = Exhibit 1) Pa,,e 2 42 ft/s 5.69 3.52 3.99 8.81 2.53 3.01 2.95 3.43 3.43 0.41 1.21 0.78 0.32 1.02 0.99 0.00 0.99 0.20 0.96 0.59 0.37 0.15 1.16 0.06 0.68 0.36 0.89 0.21 0.41 0.32 0.36 0.34 0.91 0.89 0.34 1.47 1.52 1.78 0.14 0.42 9.21 9.21 1.02 0.63 0.63 9.21 8.81 Exhibit D Water CAD PIPE SUMMARY Computation of Highest Velocity Hazen - Label Length Diameter Material Williams C it in _ 1P1 212 8 PVC 150 1P10 48 8 PVC 150 1P2 251 8 PVC 150 1P3 71 6 PVC 150 IN 686 6 PVC 150 IP5 156 6 PVC 150 IP6 266 8 PVC 150 1P7 338 8 PVC 150 1138 152 8 PVC 150 IP9 263 3 PVC 150 2P1 291 8 PVC 150 2P10 281 8 PVC 150 2P2 110 6 PVC 150 2P3 438 3 PVC 150 2P4 264 8 PVC 150 2P5 511 8 PVC 150 2P6 263 8 PVC 150 2P7 49 3 PVC 150 2P8 267 8 PVC 150 2P9 296 8 PVC 150 3P1 86 8 PVC 150 3P2 282 8 PVC 150 3P3 407 3 PVC 150 3P4 300 8 PVC 150 3P5 186 3 PVC 150 4P1 256 6 PVC 150 4P2 354 3 PVC 150 5P1 300 8 PVC 150 5P2 184 3 PVC 150 5P6 176 8 PVC 150 5P7 334 8 PVC 150 5P8 937 6 PVC 150 6P1 298 8 PVC 150 6P2 455 6 PVC 150 6133 469 6 PVC 150 7P1 343 8 PVC 150 7P2 288 8 PVC 150 7P3 454 8 PVC 150 8131 536 6 PVC 150 8P2 572 6 PVC 150 OSI 78 8 PVC 150 OS2 337 8 PVC 150 OS3 1388 24 PVC 150 OS4 470 24 PVC 150 OS5 967 24 PVC 150 Discharge Velocity 891.45', 551.05: -624.76, -776.69'' 223.31 -265.31. -461.95: -537.55'. -537.55 9.00' -189.1411: 121.64 -28.50; 22.50'. -154.64 0.00 154.64 4.50! 150.14'1 91.81: -58.32' -23.82 25.501 -9.18 -15.00 31.501 19.50 -33.18', -9.00' -49.68 -55.68' -29.831 -142.50 -78.301 -30.30; 229.80; -238.80 -279.30 -12.61! 36.61 i 1442.50 1442.50' 1442.50 891.45 891.45' Highest Velocity (entire system) = Highest Velocity within Castlegate = Exhibit 1) Pa,,e 2 42 ft/s 5.69 3.52 3.99 8.81 2.53 3.01 2.95 3.43 3.43 0.41 1.21 0.78 0.32 1.02 0.99 0.00 0.99 0.20 0.96 0.59 0.37 0.15 1.16 0.06 0.68 0.36 0.89 0.21 0.41 0.32 0.36 0.34 0.91 0.89 0.34 1.47 1.52 1.78 0.14 0.42 9.21 9.21 1.02 0.63 0.63 9.21 8.81