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HomeMy WebLinkAboutWater Report' . Water System Report for Williams Creek Subdivision, Phase 1 College Station, Texas July 2006 Prepared By: Civil Development, Ltd. 2900 Longmire Drive, Suite K College Station, Texas 77845 (979) 764-7743 I ' GENERAL INFORMATION Location: Williams Creek Subdivision, Phase 5 is located south of Williams Creek, Phases 1-4 in southern College Station. It is near the intersection of Greens Prairie Road and Rock Prairie Road. General Note: The subdivision has 20 lots. Domestic water for those 20 lots will be provided by the Wellborn Special Utility District through connections with lines in Phases 1-4. There is no public sewer service in this area at this time. On-Site Sewer Systems for each lot will be installed when the houses are built. La11d Use: Design Criteria Primary Water Supply: Domestic Demand: Avg. Pop Density: Single Family Residential WATER SYSTEM ANALYSIS Existing 10" line along Williams Creek Drive 2.67 people per lot Average Flow: Peaking Factor: 100 gpd/cap or 267 gpd per lot = 0.18 gpm per lot 4 Peak Flow: Design Flow: Fire Demand: 0.74 gpm per lot 1.50 gpm per lot Fire Flow: 1000 gpm at most hydraulically remote point Pipe: PVC DR-14 C909 Roughness Coe.ff: 150 (Raz.en Williams) Hydraulic Software: Haestad Methods WaterCAD v.6 .0 Existing City System Pressure Tests Flow Hydrant #: Last hydrant of Williams Creek Drive in Ph 4. Flowrate: 1160 gpm Pressure Test Location: Home at NW comer of Joseph Creek Ct & Williams Creek Dr. Static Pressure: 68 psi (157 ft water) Residual Pressure: 60 psi (139 ft water) Applicable Exhibits: Exhibit B -Flow Test Report Water System Summary : I Criteria Min. Pressure -fire (psi) Max. Velocity (fps) Max. Length of 6" pipe (ft) (connected to~ 8 "on both ends) Max Length of 6 "pipe (ft) (not connected on both ends) Max. Length of 3 "pipe (ft) , I I Required I I i I 20 I I I 12 I I 1500 800 500 Applicable Exhibits: Exhibit A'-Water System Schematic As Designed 51 11.45 NA 250 175 Exhibit C -Junction Summary for Static Conditions Exhibit D -Junction Sunm1ary for Fire Flows Exhibit E -Pipe Summary for Fire Flows Conclusion Location WC5-FH3 P30 6 The proposed water system for Williams Creek, Phase 5 involves the extension of lines from Phases 1-4. It has been designed to meet all criteria from the 8 /CS Design Standards and the anal ys is above indicates it will exceed the minimum perfo rman ce requirement s ofTCEQ and the City of College Station r . Exhibit B Water System Flow Test Report Date: March 2, 2006 Water System Owner: Wellborn SUD ~-----------------------~ Development Project: Williams Creek Phase 5 Flow Test Location: FH at end of Williams Creek Drive Pitot Reading~ ------- Flowrate: 1160 (gpm from chart) ------- Pressure Guage Location: New home at Joseph Creek Ct@ Williams Creek Dr. (NW corner) Static (psi): 68 Residual (psi): 60 Report prepared by: .k ~ signature Kent Laza printed name Others present: Steven Cast ----------- . .. . Exhibit C Williams Creek Ph 5 Water System Analysis Static Flow Conditions --L-ab_e_l ·~-E-le~ation Demand ~yGdradulic T-~~~~~ur~--- ra e 1 --------(tt) ------(gpm) ----·(ft) ----1 -(psi-) --- WC1-1 WC1 -2 WC1 -3 WC1 -4 WC1 -5 WC1-6 WC1-7 WC1-8 WC1-9 WC2-1 WC2-2 WC2-3 WC2-4 WC2-5 WC3-1 WC3-2 WC3-4 WC3-5 WC4-1 WC4-2 WC4-3 WC4-4 WC4-5 WC4-6 244 0 404.15 69.29 234 0 404.15 73.62 233 0 404.15 74.05 235 0 404.15 73.18 234 0 404.15 73 .62 232 3 404.15 74.48 232 10.5 404.01 7 4.42 247 12 404.14 67 .99 246 10.5 404.01 68 .36 250 0 404.15 66 .69 272 1.5 404.14 57 .17 281 10.5 404.13 53.27 240 15 404.11 71.00 276 1.5 404.13 55.43 234 13.5 404.10 73.59 242 24 404.09 70.13 264 10.5 404.09 60.61 282 18 404.10 52.83 272 9 404.12 57.16 272 0 404.12 57.16 266 4.5 404.10 59.75 250 12 403.93 66.60 248 7.5 404.10 67.54 232 6 404.10 74.46 Note: The lowest pressures shown above represent the most hydraulically remote locations in the Ph 5 system. However, when a fire flow of 1000 gpm is added, the location that produces the lowest pressures is al WC5-FH3. That is the location used in the fire flow analysis on the following two exhibits. • Lowest Pressure in Ph 5 • Lowest Pressure in Ph 5 . . ... .. • < . lO ..c a.. ~ Q) Q) .._ 0 (/) E .!!! ~ Exhibit D Williams Creek Subdivision Phase 5 Water System Analysis -Junction Summary Fire Flow Conditions -----------------·-. Label Elevation -----------------·---··-. ft WC1 -1 244 0.0 387.29 62 WC1 -2 234 0.0 387.29 66.32 WC1 -3 233 0.0 387.29 66.76 WC1 -4 235 0.0 387.29 65.89 WC1 -5 234 0.0 387.29 66.32 WC1 -6 232 3.0 387.29 67.19 WC1 -7 232 10.5 387.16 67.13 WC1-8 247 12.0 387.29 60.69 WC1 -9 246 10.5 387.15 61 .07 WC2-1 250 0.0 387 .3 59.4 WC2-2 272 1.5 386.5 49 .54 WC2-3 281 10.5 386.5 45.64 WC2-4 240 15.0 386.89 63 .55 WC2-5 276 1.5 385.93 47 .56 WC3-1 234 13.5 386.62 66.03 WC3-2 242 24.0 386.35 62.45 WC3-4 264 10.5 386.18 52 .86 WC3-5 282 18.0 386.07 45.03 WC4-1 272 9.0 384.18 48.54 WC4-2 272 0.0 383.96 48.44 WC4-3 266 4.5 383.95 51 .03 WC4-4 250 12.0 383.77 57.88 WC4-5 248 7.5 379.94 57.08 WC4-6 232 6.0 377.96 63.15 3;1 ii:'e:'-"}·' 7 ~· ~ ffSJ~ • Lowest Pressure in Phase 5 ~. : . : ~ · ....... Exhibit E Williams Creek Subdivision, Phase 5 Water System Analysis -Pipe Summary Fire Flow Conditions ------- Label Length Diameter Material Hazen-Discharge Velocity Williams C ----ft in m ft/s P1 12 802 12 PVC 150 0.00 0.00 P2 12 800 12 PVC 150 0.00 0.00 P312 575 12 PVC 150 0.00 0.00 P4 12 113 12 PVC 150 0.00 0.00 P5 8 217 8 PVC 150 13.50 0.09 P6 3 373 3 PVC 150 10.50 0.48 P7 8 718 8 PVC 150 22.50 0.14 P83 375 3 PVC 150 10.50 0.48 pg 12 455 12 PVC 150 -36.00 0.10 P10 8 767 8 PVC 150 108.39 0.69 P11 8 579 8 PVC 150 97.89 0.62 P12 8 1,078.00 8 PVC 150 79.89 0.51 P13 12 300 12 PVC 150 -990.61 2.81 P14 12 407 12 PVC 150 -1,002.61 2.84 P15 8 687 8 PVC 150 145.89 0.93 P16 8 798 8 PVC 150 132.39 0.85 P17 8 454 8 PVC 150 10.50 0.07 P18 12 793 12 PVC 150 1,069.00 3.03 P19 12 103 12 PVC 150 1,060.00 3.01 P206 440 6 PVC 150 16.50 0.19 P21 3 375" 3 PVC 150 12.00 0.54 P2210 786 10 PVC 150 1,043.50 4.26 P2310 392 10 PVC 150 1,036.00 4.23 IO .r:. a.. :>i (I) (I) ._ 0 en E ~ •Highest Velocity in ~· Phase 5 7 tl Aug 15 06 04:01p To: Fax: Phone: Remarks: Carol, Ginger Urso 979 -764 -7759 * CrVIL DEVELOPMENT, Ltd.* CIVIL ENGINEERING & DESIGN-BUILD SERVICES 2900 Longmire Drive, Suite K • College Station, Texas 77845 P .0 . Box 11929 • College Station, Texas 77842 (979) 764-7743 • Fax: (979) 764-7759 Fax Transmittal Carol Cotter Date: August 15, 2006 764-3496 From: Kent Laza 764-3570 Pages: 4 (including cover) p. 1 Following is the table I used from Steven Cast at the time the Williams Creek test was run. I did not have a copy ofNFPA 291 at that time so I used Steven's table instead. The 1160 gpm reading on a 2.5" orifice corresponds to a 48 psi pitot gauge reading. In the NFPA 291 table, 48 psi provides a flowrate of 1292 gpm. I apologize for not providing the pitot gauge reading on the test report. The test was conducted in early March, before we knew about the requirement for a Flow Test Report like we provide now. As a result, I did not know that such information would be required or checked, so I did not write it down separately. I hope this will answer your question from earlier. Kent ·----------------------- Aug 15 OS 04:01p Ginger Urso AUG-1 5-2006 TUE 03:15 PM We l l bo r n SUD 979 -764-7759 FAX No. 9796901260 PITOT GAUGE This highly accurate. hand held Pltot Gauge determines flow or velocity pressure from any opening up lo s• diameter. to determine how muc:ll water can be delivered through an outlet. The gauge b mounted on a orass tuoe wich an air bl~cr·valve; it comes complete with a press1:1re conversion chart and a protective case. Available in 100. 160, and 200 lb. dials with or without ca5e. DIAL RATING 0-100 tbs. 0-160 lbs. 0-200 lbs. WJTH CASE WITH OUT CASE P674 P67401 P67402 P67403 P67404 P67405 p.2 p, 00 1 , ~,:. OTHER INDIVIDUAL PARTS P6740G P67407 P67408 P67107 ?67106 P67109 ......... -,.._...-.. Fax #1 Bracket with pet cock tlZ Case *3 Pet Cock #4 Gauge; 2 •12• 100 lbs. #4 Gauge, 2 '/~" 160 lbs. #4 Gauge, 2 112" 200 lbs P67 4 SHOW!'{ WITH FIDW NOZZLE WWW.Pollardwater.Com YOUR SOURCE FOR CUSTOM MANUFACTURED TOOLS FOR THE WATERWORKS INDUSTRY ., JOSEPH G. POLLARD CO., INC. 200 ATLANllC AVENUE • N~W HYDE PARK, NY 11040 TEL: 800·437·1148 F"'X: l516·746-0BS2 . '.; .... Aug 15 06 04:0 1p Gi nger Urso 979 -764 -7759 FAX No. 9196901260 .:.• AUG-15-2006 TUE 03:16 PM Wellbo rn SUD PITOT GAUGE . PSI 1-112" 1 60 2 85 3 106 4 1.25 5 135 6 ,/. ~·· J 15~ . . 7 .;-·• 160 . 8 1.75 s 1a<f· 10 100 11 200 12 .210 . 13 14 ··~· . -·· 1-6 16 17 10 19 20 22 24 26 20 !30 32 34 36 36 40 ~ 42 44 46 . 48 50 52 54 56 58 220 230 -~36 240 250 255 265 270 285 295 310 320 ·.330 340 355 365 375 380 396 400 410 420 430 435 445 450 460 COMPUTATION TABLE flowing C;ipacities or Water-free Flows lndic..ted in Galloru per Minute Coefficient 1.0 Inlet Edge Smoodt/R.ound Coefficient .88 Inlet Edge Square/Snarp Coeff1eient .77 Inlet Edge Squ111re/Riiseq, •. . . ·. . Coelficient 1.1 for Open End Pipe .· . • All Results Rounded to Nearest 5 GPM • 2" . 2-1/:.z" 110 170 ,,5Q:;::·;;.· . 240 ~, .. \'II','."'' . ,, . 185'. ' 290 220 340 24if''· 380 260 . 410 280 I.. 440 310 480 320 500 340 530 ·' 356 555 370 580 390 405 ··---.+-15 430 440 .. 466 ·405 4BO 505 525 550 570 590 e1Q s?s · 645. 665 680 700 710 730 740 7~0 775 785 800. 820 605 630 fJlO 890 7f0 730 750 790 820 860 690- 920 950 ·.~a-~ . 1010 1040 1060 10110 1110 · 1140 1180 t19Q 1210 1230 1260 1280 245 330 .: .. 3'.w · ·410 . 420 570 490 665 ~ .545 745 590 BOS 635 680 BBO 940 720 980 765 1040 BOO 1000 835 1135 870 .910 9SS 965 995 1020 1050 1080 1140 1180 1240 1280 1325 1370 1"1~.o ·1455 1500 ··1525 1570 1600 1640 1670 1715 1740 1770 1800 1845 1185 1235 1275 1315 1350 1390 l4JO 1470 1550 . 1605 1685 1745 1805 1860 1920 1~80 2040 2075 2135 21 75 2235 2275 2330 2370 2410 2500 2510 4• 435 .. 815 ·740 870 960 1050 1140 1220 1290 1360 1420 1490 1550 1610 1eti~ "· 17.20 1770 1830 1870 1920 2020 2110 2190 2280 2350 2430 2510 2580 2650 2720 2780 2850 2920 2980 3040 3100 3160 3220 3280 . ·. 550 775 940 1100 1220 ' 1340 ' 1440 1540 1640 1730 1800 1890 1960 204-0 .. ,105 2feo 2235 2310 · 2365 24JO 2550 .2660 . 2770 2880 2960 3080 ~170 . 3260 3350 3440 3520 3610 3690 3nO 3860 3940 4010 4080 4160 6" 680 960 1160 1360 ··1520 1840 1780 1920 2000 2120 ~-2220 2320 ,2420 2520 . Z6.00 2660 2760 2840 2920 3000 8160 s2so 344-0 3560 3660 3000 3920 4040 4160 4240 4360 4440 4560 4640 4760 4840 4920 5000 5120 s· 960 1380 1670 1960 21BO 2360 2535 . 2765 . 2860 3050 :ms · 3340 3~~ 3625 . 37·~ 3860 3975 4090 4205:. 4320 4660 . 4720 4950 5125 5295 5470 5640 . 5815 5900 6105 8275 6390 6565 6680 6850 6966 7060 7200 7370 p.3 p. uu' ··. JOSEPH G. POLLARD CO., INC. 200 An.ANTIC A.VENUE • NEW HYDE PARK. NY 110"0 ·TEL: 800-437-114g 'FAX: 516-748-0862 WWW.Pollardwater.Com ., Aug 15 06 04:02p Ginger Urso AUG-15-2006 TUE 03: 16 PM Wei I born SUD COMPUTAnCJN TABLE (CONTINUED) PITOT GAUGE PSI M/2'' so 62 64 66 60 "70 72 74 76 78 80 62 84 86 ee 90 92 94 9G 98 100 102 104 106 .-t:Oa 110 112 114 116 118 120 122 124 126 126 130 J.~.~ 134 138. 136 140 142 1,44 146 148 150 152 154 156 158 160 470 460 485 490 500 505 515 520 5!30 535 540 550 655 560 570 ·575 SBO 590 595 600 605 610 620 625 ·:-'530 636 640 645,. 850 660 665 670 675 6BO 665 690 695 700 705 710 715 720 725 730 735 740 745 750 .765 760 765 2'' 9:30 650 860 875 990 900 910 925• 940 950 960 975 965 1000 1010 1020 1030 1045 1055 1066 1075 1090 1100 1110 112a 1130 1140 1150 1160 1170 1160 1190 1200 1210 1220 1230 1235 1245 1255 1265 1270 1260 1290 1300 1310 1320 1330 1335 1345 1350 1360 M/2" 13QO 1320 1340 136-0 1385 1405 1425 1445 1465 14~0 1500 1520 1540 1555 1575 1590 1610 1625 1645 1660 1680 1695 1710 1730 '1745 1760 H76 1700 1810 1825 1840 1855 1870 1885 1900 1915 1930 ~945 1955 1970 1985 2000 2015 2030 2040 2055 2070 2080' 2095 2110 2120 3" 1870 1905 .1940 1970 1995 2~5 2055 2oeo 2110 2140 2165 2190 2220 2245 2270 2300 2320 2345 2370 2400 2420 2445 2470 2495 . .2515 2540 2560 2585 2610 2830 2050 2675 2695 2720 2740 2760 2780 2805 2825 2645 2865 ' 2885 2905 2925 2945 2965 2985 3005 3025 3045 3050 s-112• 2550 25g5 2635 2680 2720 2765 2795 2835 2875 2910 2950 2985 3020 3055 3090 3125. 3160 3195 3230 3260 3295 3330 3300 J 3395 3425 3455 3490 3520 3550 3580 3810 3840 3670 3700 3730 3760 3765 3815 3645 3870 3900 3930 3966 3980 4010 4035 4065 4090 4115 4140 4170 979-764-7759 FAX No. YIY69012HU p.4 p. UU0 4" 3~30 3360 3435 3490 3540 3595 3645 3695 3745 3795 '3840 3890 3935 3985 4030 4075 4120 4165 . 4210 : : 4260 .4295 4340 4380 4425 ... ~5 4505 4545 4565 4625 4865 4705 4745 4785 4820 -4880 4900 4935 4970 5010 5045 5085 5120 6165 5190 5225 5280 5295 5330 5365 5400 5435 4--1/'l" 4230 4290 4360 4425 4490 4560 4e20 4695 4760 4610 4970 4930 4990 5050 5110 5170 5225 5280 5340 5300 54 60 6500 5555 5610 5660 5715 .5765 5815 5870 5920 5970 8020 6055 6115 6160 6210 6260 6305 6350 6400 6445 6490 8540 6580 6630 6670 6715 6760 6805 6850 . 6890 ,1. S'' 6200 5295 5360 54BO 5545 5630 5705 5765 5860 5940 6015 8090 6165 6240 6"$ 7484 7~5 7750 :•:·.· 7870 .·,. 7985 i!100 8220 8330 8440 6555 6860 8770 8875 8980 6310 9085 ..... 6380 9190 ;'·"' 6450 9290' 6520' 939Ci 6590 9490 6660 9599· 6?25 9685 6790 9780 6860 " . 9675 6926 9970 699.0 10065 1oss .... 1o16o : 7120 10250 ·' 7180 10340 7240 10430 7305 10520 '7370 10610 7430 7490 7550 7610 7670 7725 7785 7840 7900 7960 8015 8070 8125 8180 82~5 8290 10695 10785 . '10870 10955 11040 11125 11210 11295 11375 11460 11540 11620 11700 11780 11860 11940 . 8350 12020 8400 . 12095 8450 12170 8510 :~~-·~, t2250 ,., .... ;;.': .... ~:. WWW.Pol/ardwater. Com