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HomeMy WebLinkAboutWater ReportWater System Report for University Heights Subdivision Phase 1 College Station, Texas May, 2011 Prepared By: SCHULTZ ENGINEERING, LLC. TBPE Firm Registration No. 12327 2730 Longmire, Suite A College Station, Texas 77845 979.764.3900 F -12327 SCHULTZ ENGINEERING. LLC. General Information Location: North West of intersection of Holleman Drive South and Paloma Ridge Drive. General Note: Existing System Pressure Tests: Flow Hydrant - See Exhibit B Flowrate: 1,221 gpm Static Pressure: 71 psi Residual Pressure: 55 psi Conclusion The water lines to serve these 82 residential lots will be an 8" lines along Holleman Drive South, Davidson Drive and Kenyon Drive and Haverford Drive. The 8" line will connect to the existing 8" water line along Holleman Drive South. The waterline layout is shown on Exhibit A. Land Use: Single Family Residential Design Criteria/Analysis Primary Water Supply: Existing 8" water line along Holleman Drive South. Exhibits: Exhibit A — Location Map Exhibit B — Hydrant Flow Test Results Exhibit C — Pipe and Junction Analysis — Domestic Demand Exhibit D — Pipe and Junction Analysis — Fire Flow Demand Fire Flow: 1,000 gpm for Single Family Residential Domestic Use 1.5 gpm per lot for Single Family Residential The proposed 8" water lines are in accordance with the BCS Water Design Guidelines. This report provides the results of the water system analysis under the fire flow and domestic demand requirements, (1,123 gpm) which produced the lowest pressure in the system. The lowest residual pressure with the fire flow at fire hydrant 2 and domestic demand is computed to be 34.6 psi. With the domestic demand only, the residual pressure is computed to be 63.3 psi. Each of these pressures exceed the 20 psi and 35 psi minimum pressure requirements, respectively. The maximum velocity in all pipes is less than 12 fps for all scenarios. This analysis is for Phase 1 of this development. In a future phase, the water supply will also be connected to an existing 8" line on Los Portales Drive. Completing this loop will increase pressure in the proposed lines. The proposed 8" water lines meet or exceed all of the design criteria for the City of College Station. It will provide adequate water pressure, flowrate and velocity for both domestic and fire flow demands. P -8 J -8 .r) -7 J -7 J -6 FH 2 J -9 IMMIII 1111111101 w OW P -11 FH 3 P -14 P -15 FH 4 J -11 J -10 - 1 J -12 m X3 EXISTING EXISTING SCHULTZ ENGINEERING LLC. THIN N0. 1,127 2730 'nag mu' e. Hullo. 11.11_ . "M 77545 979.764.3900 6404Er® 4 M EM I WS I RC, I JPS 1 11.190 I MAY 1011 UNIVERSITY HEIGHTS SUBDIVISION PHASE 1 COLLEGE' STATION, 77 WATER LINE LAYOUT SCALE r • /lanw 9aLE MI J -1 EXHIBIT A Water System Owner: Wellborn SUD Development Project: Flow Test Location: Nozzle size (in.): 2 1/2" Pitot Reading (psi): 53 Flowrate (gpm): ,221 Pressure Gauge Location: Static Pressure (psi): 71 Residual Pressure (psi): 55 Computed Discharge at 20 psi Residual Pressure: Q = 2,210 g p m 0 54 0.54 Discharge Formula: QR = QF X (h /hf ) Note: The flow test and report were prepared in accordance with NFPA 291. Report Prepared by: Others Present: Exhibit B SCHULTZ ENGINEERING, LLC FIRM 114538 WATER SYSTEM FIRE HYDRANT FLOW TEST REPORT Date: 5/10 /2011 University Heights Subdivision 3537 Paloma Ridge Dr. 3513 Paloma Ridge Dr. Ricky Flores Joseph P. Schultz Britt Curless Jeremy Lyon Discharge Coeff: (c) = 0.90 Flowrate Formula: Q= 29.84cd c = discharge coeff. d = orifice size (in) P = pitot pressure (psi) Pipe Number Length (ft) Start Node End Node Size (in) Pipe Material Hazen- William C- Value Pipe Flow (GPM) Velocity (ft/s) P-1 P-2 P-3 P-8 1 P-9 P-15 P-16 P-4 P-5 P-12 P-6 P-7 P-10 P-11 P-13 P-14 1- P-39 P-40 P-41 216 602 614 96 174 131 67 136 12 6 808 15 922 113 576 5 100 346 13 -1- 1 4 1-1 1-2 J-3 .1-6 1-6 J-10 J-10 J-2 FH 1 J-3 J-5 FH 2 .1-5 t FH 3 FH 5 FH 4 J-4 1 J-39 J-39 1-2 J-3 I-4 J-7 1-8 J-11 J-12 FH 1 J-5 FH 5 FH 2 J-6 FH 3 J-9 FH 4 J-10 1-39 EXISTING FH R-1 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 12 PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC t PVC PVC 150 150 150 150 150 150 0 0 0.61 0.79 0 -96 -123 0 ---,-- 0 0 0 - 0 150 150 150 150 1 150 150 150 150 150 i 150 150 150 150 0 96 96 27 24 24 - 30 0 0.61 0.61 0.17 0.15 0.15 0.19 0 0 14 0.09 14 -123 0.09 0.79 _ 0 0.35 0 -123 Junction Elevation (ft) Demand (GPM) Pressure (PSI) J-4 309.52 1 ' 0 69.9 J-1 315.5 , 0 67.1 J-2 317.73 ' 0 66.2 J-3 316.71 1 0 66.7 J-6 323.94 24 63.5 J-7 324.01 0 63.4 J-8 324.28 0 63.3 J-10 316.7 14 66.7 J-11 316.07 0 66.9 .1-12 315.73 0 67.1 J-5 320.22 ' 42 65.1 J-9 319 -1 0 65.2 FH 1 320.14 0 65.1 FH 5 317.03 14 66.5 FH 2 324.08 0 63.4 FH 3 319.48 30 65.4 FH 4 316.67 0 66.7 EXISTING FH 310 0 69.7 .1-39 309.63 0 69.8 Exhibit C WaterCAD Analysis Summary Pipe Analysis - Domestic Demand Exhibit C WaterCAD Analysis Summary Junction Analysis - Domestic Demand Pipe Number Length (ft) Start Node End Node Size (in) Pipe Material Hazen- William C- Pipe Flow Value (GPM) Velocity (ft/s) P-1 216 J-1 J-2 8 PVC 150 0 0 P-2 602 J-2 J-3 8 PVC 150 -1096 7 P-3 614 J-3 1-4 8 PVC 150 -1123 7.17 P-8 96 J-6 J-7 8 PVC 150 0 0 P-9 174 1-6 J-8 8 PVC 150 0 0 P-15 131 J-10 1-11 8 PVC 150 0 0 P-16 67 J-10 1-12 8 PVC 150 0 0 P-4 136 t J-2 FH 1 8 PVC 150 1096 7 P-5 12 FH 1 J-5 8 PVC 150 96 0.61 P-12 6 1-3 FH 5 8 PVC 150 27 0.17 P-6 808 J-5 FH 2 8 PVC 150 24 0.15 P-7 15 FH 2 J-6 8 PVC 150 24 0.15 P-10 922 J-5 FH 3 8 PVC 150 30 0.19 P-11 113 FH 3 J-9 8 PVC 150 0 0 P-13 576 FH 5 FH 4 8 PVC 150 14 0.09 P-14 5 FH 4 J-10 8 PVC 150 14 0.09 P-39 100 J-4 J-39 8 PVC 150 -1123 7.17 P-40 346 1-39 EXISTING FH 8 PVC 150 0 0 P-41 13 1 J-39 R-1 12 PVC 150 -1123 3.19 Junction Elevation (ft) Demand (GPM) Pressure (P5I) J-4 309.52 0 56.1 J-1 315.5 0 44.6 J-2 317.73 0 43.6 J-3 316.71 0 48.4 1-6 323.94 24 40 J-7 324.01 0 39.9 J-8 324.28 0 39.8 J-10 316.7 14 48.4 J-11 316.07 0 48.7 J-12 315.73 0 48.8 J-5 320.22 42 41.6 J-9 319.87 0 41.7 FH 1 320.14 1000 41.6 FH 5 317.03 14 48.3 FH 2 ! 324.08 0 39.9 FH 3 319.48 30 41.9 FH 4 316.67 0 48.4 EXISTING FH 310 0 56.7 1-39 309.63 0 56.8 Exhibit D WaterCAD Analysis Summary Pipe Analysis - Fire Flow - Fire Hydrant 1 Exhibit D WaterCAD Analysis Summary Junction Analysis - Fire Flow Ana ysis - FH 1 Pipe Number Length (ft) Start Node End Node Size (in) Pipe Material Hazen- William C- Value Pipe Flow (GPM) Velocity (ft/s) P-1 216 1-1 J-2 8 PVC 150 0 0 P-2 602 J-2 J-3 8 PVC 150 -1096 7 P-3 614 J-3 1-4 8 PVC 150 -1123 7.17 P-8 96 1-6 J-7 8 PVC 150 0 0 P-9 174 J-6 J-8 8 PVC 150 0 0 P-15 P-16 131 67 67 1 1-10 J-11 8 J-10 J-12 8 PVC L PVC 150 150 0 0 0 0 P-4 136 J-2 FH 1 8 PVC 150 1096 7 P-5 12 FH 1 J-5 8 PVC 150 1096 7 P-12 6 1-3 I FH 5 8 PVC 150 27 ; 0.17 1 . P-6 808 J-5 FH 2 8 PVC 150 1024 6.54 P-7 15 FH 2 J-6 8 PVC 1 150 24 1 , 0.15 P-10 922 , J-5 FH 3 8 PVC r 150 30 , 0.19 P-11 113 FH 3 1 J-9 8 PVC 150 0 0 P-13 576 FH 5 FH 4 8 PVC 150 14 1 0.09 P-14 5 FH 4 J-10 8 PVC 150 14 1 0.09 P-39 100 J-4 J-39 8 PVC 150 -1123 7.17 P-40 346 346 J-39 EXISTING FH 8 PVC 150 1 0 0 P-41 13 1-39 R-1 12 PVC 150 -1123 3.19 Junction Elevation (ft) Demand : Pressure (GPM) (PSI) J-4 309.52 0 56.1 J-1 315.5 0 44.6 J-2 317.73 0 43.6 J-3 316.71 0 48.4 J-6 323.94 24 34.8 J-7 324.01 0 34.7 J-8 324.28 0 34.6 J-10 316.7 14 48.4 J-11 316.07 0 48.7 J-12 315.73 0 48.8 J-5 320.22 42 1 41.5 J-9 319.87 0 4L6 FH 1 320.14 0 41.6 FH 5 317.03 f 14 48.3 FH 2 324.08 1000 34.7 FH 3 319.48 30 41.8 FH 4 316.67 0 48.4 EXISTING FH 310 0 56.7 J-39 309.63 0 56.8 Exhibit D WaterCAD Analysis Summary Pipe Analysis - Fire Flow - Fire Hydrant 2 Exhibit D WaterCAD Analysis Summary Junction Analysis - Fire Flow Analysis - FH 2 Pipe Number Length (ft) Start Node End Node Size (in) Pipe Material Hazen - William C- Value Pipe Flow (GPM) Velocity (ft/s) P -1 216 J -1 J -2 8 PVC 150 0 0 P -2 602 1 -2 1 -3 8 PVC 150 -1096 7 P -3 614 J -3 J -4 8 PVC 150 -1123 7.17 P -8 96 1 -6 J -7 8 PVC 150 0 0 P -9 174 J -6 1 -8 8 PVC 150 0 1 0 P -15 131 1 -10 1 -11 8 PVC 150 0 0 P -16 67 J -10 J -12 8 PVC 150 0 0 P -4 136 J -2 FH 1 8 I PVC 150 1096 1 7 P -5 12 FH 1 J -5 8 PVC 150 1096 7 P -12 6 J -3 FH 5 8 PVC 150 27 0.17 P -6 808 J -5 FH 2 8 PVC 150 24 0.15 f P -7 15 FH 2 J -6 8 1 PVC 150 24 0.15 P -10 922 J -5 FH 3 8 PVC 150 1030 6.57 P -11 113 FH 3 J -9 8 PVC 150 0 0 P -13 576 FH 5 FH 4 8 PVC 150 14 0.09 P -14 5 FH 4 J -10 8 PVC 150 14 0.09 P -39 100 J -4 1-39 8 PVC 150 -1123 7.17 P-40 346 J -39 EXISTING FH 8 PVC 150 I 0 0 P-41 13 J -39 R -1 12 PVC 150 ; -1123 3.19 Junction Elevation (ft) Demand (GPM) Pressure (PSI) J -4 309.52 0 56.1 + J -i 315.5 0 1 44.6 J -2 317.73 0 43.6 J -3 316.71 0 48.4 J -6 323.94 24 39.9 J-7 324.01 0 39.8 J -8 324.28 0 39.7 J -10 316.7 14 48.4 J -11 1 316.07 0 48.7 J -12 315.73 0 48.8 J -5 320.22 42 41.5 J -9 319.87 0 35.7 FH 1 320.14 0 41.6 i I FH 5 317.03 14 ■ 48.3 FH 2 324.08 0 39.8 FH 3 319.48 1030 I 35.9 FH 4 316.67 0 48.4 EXISTING FH 310 0 56.7 139 309.63 0 56.8 Exhibit D WaterCAD Analysis Summary Pipe Analysis - Fire Flow - Fire Hydrant 3 Exhibit D WaterCAD Analysis Summary Junction Analysis - Fire Flow Analysis - FH 3 Pipe Number Length (ft) Demand (GPM) Start Node End Node Size (in) Pipe Material Hazen - William C- Pipe Flow Value (GPM) Velocity (ft/s) P -1 216 48.9 J -1 J -2 8 PVC 150 0 0 P -2 602 45.2 1 -2 J -3 8 PVC 150 -96 0.61 P -3 614 316.7 J -3 J -4 8 PVC 150 -1123 7.17 P-8 96 0 1 -6 J-7 8 PVC 150 0 0 P -9 174 47 1 -6 J -8 8 PVC 150 0 0 P -15 131 324.08 0 J -10 J -11 8 PVC 150 0 0 P -16 67 EXISTING FH J -10 J -12 8 PVC 150 , 0 0 P-4 136 1 -2 FH 1 8 PVC 150 96 0.61 P -5 12 FH 1 J -5 8 PVC 150 96 0.61 P -12 6 J -3 FH 5 8 PVC 150 F 1027 6.56 P -6 808 J -5 FH 2 8 PVC 150 24 0.15 P -7 15 FH 2 J -6 8 PVC 150 24 0.15 P-10 922 J -5 FH 3 8 PVC 150 30 0.19 P-11 113 FH 3 1 -9 8 PVC 150 0 0 P -13 576 FH 5 FH 4 8 PVC 150 1014 6.47 P -14 5 FH 4 J -10 8 PVC 150 L 14 0.09 P -39 100 t J-4 J -39 8 PVC 150 -1123 7.17 P-40 346 J -39 EXISTING FH 8 L PVC 150 0 T 0 P -41 13 i J -39 R -1 12 PVC , 150 r -1123 3.19 Junction Elevation (ft) Demand (GPM) Pressure (PSI) J -4 309.52 0 56.1 J-1 315.5 0 48.9 J -2 317.73 0 47.9 J -3 316.71 0 -- -- -------- --- -_. _. . 48.4 J -6 323.94 24 45.2 J -7 324.01 0 45.2 J -8 324.28 0 45.1 1 -10 316.7 14 44.8 J -11 316.07 0 45.1 J -12 315.73 0 45.2 J -5 320.22 42 46.8 J -9 } 319.87 0 47 FH 1 320.14 0 46.9 FH 5 317.03 14 48.2 FH 2 324.08 0 45.1 FH 3 319.48 30 47.1 FH 4 316.67 1000 44.8 EXISTING FH 310 0 56.7 J -39 309.63 0 56.8 Exhibit D WaterCAD Analysis Summary Pipe Analysis - Fire Flow - Fire Hydrant 4 Exhibit D WaterCAD Analysis Summary Junction Analysis - Fire Flow Analysis - FH 4 Pipe Number I Length (ft) I j Start Node End Node Size (in) , ': Pipe Material Hazen- William C- Value r Pipe Flow (GPM) Velocity (ft/s) P -1 P -2 P -3 P -8 P -9 P -15 P -16 P -4 P -5 P -12 P -6 P -7 P -10 P -11 P -13 P -14 P -39 P -40 P -41 216 602 614 96 174 ! 131 67 136 12 6 I 808 15 922 113 1 576 ! 5 100 346 13 J -1 1 -2 .1-3 J -6 .1-6 J -10 J -10 J -2 FH 1 1 -3 .1-5 FH 2 .1-5 FH 3 FH 5 FH 4 J -4 .1-39 J -39 1 -2 .1-3 J -4 J -7 .1-8 J -11 .1-12 FH 1 J -5 FH 5 FH 2 J -6 1 FH 3 1 -9 FH 4 .1-10 J -39 EXISTING FH R -1 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 12 ! { PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC rt 1 . 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 0 -96 - -1123 ' 0 r 0 0 0 96 96 1027 24 1 24 30 0 14 r 14 -1123 • 0 -1123 0 0.61 7.17 0 0 0 0 0.61 0.61 6.56 0.15 0.15 0.19 0 0.09 0.09 7.17 0 3.19 Exhibit D WaterCAD Analysis Summary Pipe Analysis - Fire Flow - Fire Hydrant 5 Exhibit D WaterCAD Analysis Summary Junction Analysis - Fire Flow Ana ysis - FH 5 Junction Elevation (ft) Demand Pressure (GPM) (PSI) J -11 .1-12 J -5 J -9 FH 1 FH 5 FH 2 FH 3 FH 4 EXISTING FH J -39 309.52 315.5 317.73 316.71 323.94 324.01 324.28 316.7 316.07 315.73 320.22 319.87 320.14 317.03 324.08 319.48 316.67 310 309.63 56.1 48.9 47.9 48.4 45.2 45.2 45.1 48.4 48.6 48.8 46.8 47 46.9 48.2 45.1 47.1 48.4 56.7 56.8