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Home My WebLink About2864 WHIPTAIL LP; ; AS160127; Permit9/8/2020 AS160127 Permit Data City of Carlsbad Sprinkler Permit Job Address: 2864 WHIPTAIL LP Permit Type: SPRINK Parcel No: 2091201000 Permit No: AS160127 Status: ISSUED Applied 5/12/2016 Approved: 5/5/2016 Lot #: U Reference No.: Issued: 5/5/2016 PC #: Inspector: Project Title CARLSBAD OAKS NORTH LOT 13 UNDERGROUND AND HYDRANT Applicant: TFW CONSTRUCTION STE 200 7460 MISSION VALLEY RD SAN DIEGO, CA 951-239-5036 Owner: TECHBILT CONSTRUCTION CORP P0 BOX 80036 SAN DIEGO CA Fees ($) Add'l Fees ($) Total ($) Balance ($) 670 0 670 0 1/1 1 <w Co C%1 I I I I I I I I I I I I I I I I I I I I FIRE FLOW ANALYSIS FOR: CARLSBAD OAKS LOT 13 Prepared For: SR Communications LAND PLANNING ENGINEERING SURVEYING 440 STATE PLACE, ESCONDIDO, CA 92029 PH (760)745-8118 FX (760)745-1890 Excel Reference No.: 14-101 Date: April 8, 2016 ASi 60127 2864 WHIPTAIL LP I I PURPOSE/PROJECT DESCRIPTION I This water system analysis was conducted to check the capacities of the proposed on site private underground fire distribution system and potable water supply lines that will serve the proposed Carlsbad Oaks Lot 13. A 12" lateral Polyvinyl chloride (PVC) connection will service the onsite fire system, originating from an existing 16" water line running below Whiptail Loop East. I The fire line connection will utilize a 10" double detector check valve (DDCV). The connection services an onsite looped fire system consisting of a 10" line that will serve the fire sprinklers I and eight separate hydrants around the site. CRITERIA AND METHODOLOGY I The modeling of the onsite fire service lines was completed using the EPANET 2.0 program (EPANET). Usage of the water and sewer plans provided the scaled distances for the project. The schematic used in EPANET can be found on Attachment 1. Head Loss Across Fittings I Minor loses encountered in the Ductile Iron Pipe (DIP) fittings along the pipelines were neglected in the model (i.e. elbows, tees, etc.). The head loss (HL) across the backflow apparatus was addressed and modeled using the method described below. I The Watts 10" double check detector assembly (DCDA) was modeled as a general purpose valve (GPV) in series with a check valve. The HL curve can be found on the specification sheet for the I Watts DCDA on Attachment 2. This information was used to develop Figure 1 below, which displays the HL curve created for usage in EPANET to model the flow within the system. Additional information for the proposed backflow device can be found on Attachment 2. I I I I I I I I I I Curve Editor Curve ID Description 110DDCV jWattsDDCV10 Curve Type Equation Flow T~dloss 18- 1000 5.777 16- HEADLOSS jj 3000 14- 1500 6.920 2000 9.242 2500 11.55 8- 16.174 6- 0 1,000 2,000 3000 3500 18.485 - .!ow (GPM) - Load... ] - Save... OK Cancel - help Fig. 1: HL Curve for the 10" DCDA Roughness Coefficients A Hazen-Williams roughness coefficient value of 150 was used for the PVC pipes in the system. Modeled Demand Flows To ensure the onsite hydraulics can supply adequate flow to the system during a fire event, Excel Engineering tested the main scenario. With the fire flow system criteria provided by the Fire Marshall, the following test scenarios were conducted: Scenario 1— For this scenario, a demand of 3,500 gpm was supplied to the hydrant furthest from the building connection, and no flow was provided to either of the buildings. Tie-In Pressures Available Existing flow and pressure data from the public system in Whiptail Loop East was taken from a flow analysis performed by the City of Carlsbad Fire Department (CCFD) on 04/04/2016. To model this scenario in EPANET the pressure available was modeled as a reservoir with a total head equivalent to the Static Pressures given in the analysis provided by the City. This pressure test data can be found on Attachment 3 to this report, and is summarized in the table below. I I I 2 I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I Table 1: CCFD Flow Test Results Hydrant NO Static Static Elevation (ft) Total Head Reservoir Pressure (psi) Pressure Available Number (ft of head) (ft) H61680 132 305 400 705 1 CALCULATONS AND CONCLUSIONS This performed analysis confirms that the underground fire distribution system will be adequate to provide fire flows to the site for Scenario 2 in accordance with the following requirements: Minimum residual pressure for the project shall be 20 pounds per square inch (psi) during fire flow demand. Pipe velocities shall not exceed 10 feet per second (fps). The velocity and pressure requirements were met for this project. Scenario 1 For this scenario, the highest velocity found in the system was in multiple pipes. This velocity was recorded as 9.93 fps. See Attachment 4. Minimum Pressure - For this scenario, the minimum pressure in the system is found in Junction 20. The recorded pressure was 102.3 psi. See Attachment 5. A velocity of 39.7 fps was found in the hydrant (Pipe 19) for this scenario. 3 I I Attachment I - Site Schematic I Junction #19 3,500 gpm to this hydrant 22 22 I I I I I I I I I I I I I I I I 10 Pressure 100.00 110.00 120.00 130.00 psi Velocil 0.00 5.00 7.50 10.00 fps I 22 20 Attachment 1.1 - Site Schematic Day 1, 12: EPANET2 Page 1 I I Job Name Contractor 1 Job Location Approval ES-757DCDA/757NDCDA Engineer I Approval Series 757DCDA, 757NDCDA Double Check Detector Assemblies Sizes: 21h" -10" (65 - 250mm) Series 757DCDA, 757NDCDA Double Check Detector Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. The 757DCDA, 757NDCDA may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. Series 757DCDA, 757NDCDA is used primarily on fire line sprinkler systems when it is necessary to monitor unauthorized use of water. ' Features Extremely compact design 70% Lighter than traditional designs I . 304 (Schedule 40) stainless steel housing & sleeve Groove fittings allow integral pipeline adjustment Patented tn-link spring check provides lowest pressure loss I . Unmatched ease of serviceability Available with grooved butterfly valve shutoffs May be used for horizontal, vertical or N pattern installations I . Replaceable check disc rubber Specifications The Double Check Detector Assembly shall consist of two I independent tn-link check modules within a single housing, sleeve access port, four test cocks and two drip tight shutoff valves. Tr-link checks shall be removable and serviceable, with- out the use of special tools. The housing shall be constructed of 304 Schedule 40 stainless steel pipe with groove end con- nections. Tr-link checks shall have reversible elastomer discs and in operation shall produce drip tight closure against reverse I flow caused by backpressure or backsiphonage. The bypass assembly shall consist of a meter, which registers in either gal- lon or cubic measurement, a double check backflow assem- bly and required test cocks. Assembly shall be a Watts Series 757DCDA, 757NDCDA. Contractor's P.O. No. Representative 757DCDAOSY 757DCDABFG 757NDCDAOSY NOTICE The information contained herein is not intended to replace the full product installation and safety information available or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product. I I I I I I Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with- out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold. M~WAM I SIZE (ON)DIMENSIONS WEIG HT in. mm A in. mm C in. mm D in. mm 6 in. mm in. H mm I in. mm J in. mm P in. mm 757DCDABFG lbs. kgs. 757NDCDA BFG lbs. kgs. 2½ 65 27% 705 8 203 3½ 89 29/i 759 21½ 546 1415/16 379 8"/16 223 13 330 70 32 78 35 3 80 28¼ 718 85A6 211 311A6 94 301Vis 779 22¼ 565 157As 392 93A6 233 131/2 343 68 31 81 37 4 100 29 737 815As 227 311A6 94 1 31'5/is 811 1 231/2 597 1 161/4 412 1 915A6 252 1 14 356 75 34 1 98 44 6 150 1 361/2 927 10 254 5 127 1 433A6 1097 1 331/4 845 1911A6 500 1 131A6 332 1 141/2 368 131 59 171 78 8 200 1 42% 1086 121/4 311 6½ 165 1 511/is 1297 1 40½ 1019 235As 592 1 15Wis 399 1 183As 462 275 125 1 351 159 Noryl® is a registered trademark of General Electric Company. I I I I 757DCDABFG, 757NDCDABFG Available Models Suffix: OSY - ULJFM outside stem and yoke resilient seated gate valves BFG - UL/FM grooved gear operated butterfly valves with tamper switch 5y FxG - Flanged inlet gate connection and grooved outlet gate connection *OSY GxF - Grooved inlet gate connection and flanged outlet gate connection *y GxG - Grooved inlet gate connection and grooved outlet gate connection Available with grooved NRS gate valves - consult factory* Post indicator plate and operating nut available - consult factory* *Consult factory for dimensions Materials Housing & Sleeve: 304 (Schedule 40) Stainless Steel Elastomers: EPDM, Silicone and Buna-N Tr-link Checks: Noryl®, Stainless Steel Check Discs: Reversible Silicone or EPDM Test Cocks: Bronze Body Nickel Plated Pins & Fasteners: 300 Series Stainless Steel Springs: Stainless Steel Pressure - Temperature Temperature Range: 33°F - 140°F (0.5°C - 60°C) Maximum Working Pressure: 175p5i (12.1 bar) Approvals - Standards 'Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC) I I I I I I Dimensions - Weight I I1 C (open) H - A .................... 757DCDA, 757NDCDA ** ®C ®c®us4> US Approved 1048 B64.5 BFG & OSY Only) UNIN jIiI 150, IijI I I Fj 1 SIZE (DN) DIMENSIONS WEIGHT in. mm A in. mm C (OSY) in. mm D in. mm 6 in. mm H in. mm I in. mm J in. mm P in. mm 757DCDA lbs. kgs. 757NDCDA lbs. kgs. 21/2 65 30% 781 16/s 416 31/2 89 29Vis 738 211/2 546 15½ 393 813A6 223 133A6 335 139 63 147 67 380 31% 806 18/8 479 31A6 94 3Q1/4 768 22¼ 565 171/8 435 9/is 233 141/2 368 159 72 172 78 4100 33% 857 22/4 578 4 102 33 838 231/2 597 181/2 470 9's/is 252 153A6 386 175 79 198 90 _6150 1 431/2 1105 1 301/8 765 51/2 140 443/4 1137 1 331/4 845 1 233A6 589 131A6 332 19 483 309 140 350 159 8200 1 49% 1264 1 373/4 959 611A6 170 54½ 1375 1 40½ 1019 1 272/16 697 1 1511A8 399 21 '/16 538 494 224 569 258 10 250 1 573/4 1467 1 453/4 1162 1 8/l6 208 66 1676 1 49/2 1257 1 321/2 826 1 175A6 440 24 610 795 361 965 438 I I I I Capacity Series 757DCDA, 757NDCDA flow curves as tested by Underwriters Laboratory. Flow characteristics collected using butterfly shutoff valves Horizontal _____ Vertical ------N - Pattern 2½" (65mm) PSI Service Flow Rated Flow *UL Rated Flew 12 N 10 v 14 50 100 150 200 250 300 350 gpm 0 190 380 570 760 950 1140 1330 1pm 7.5 15 fps Flow capacity chart identifies valve performance based upon rated water velocity up to 25fps Service Flow is typically determined by a rated velocity of 7.5fps based upon schedule 40 pipe. Rated Flow identifies maximum continuous duty performance determined by AWWA. UL Flow Rate is 150% of Rated Flow and is not recommended for continuous duty. AWWA Manual M22 [Appendix C] recommends that the maximum water velocity in services be not more than lofps. 6" (150mm) )SI Service Flow Rated Flow 111. Rated Flow 12 1 - - N - uu 8 1 V 1 - q 12 _ 300 600 900 1200 1500 gpm 0 1140 2280 3420 4560 5700 1pm 7.5 12 fps I I I I I I 3" (80mm) 8" (200mm) Sl Service Flow Rated Flew lii Rated Row psi Service Flow Rated Flow UL Rated Flow 12 12 N 10 H 10 H _ __ _ i 41 hfl 0 ioo 200 300 400 500 gpm 0 500 1000 1500 2000 2500 gpm 0 380 760 1140 1520 1900 1pm 0 1900 3800 5700 7600 9500 1pm 7.5 15 fps 7.5 10 fps I I LI 4" (100mm) PSI Service Row Rated Flew *UL Rated Raw 24 N 20 lS j H 12 0 100 200 300 400 500 600 700 800 gpm 0 380 760 1140 1520 1900 2280 2660 3040 1pm 7.5 13 fps I I I I Si 10" (250mm) p Service Flow Rated Row IlL Rated Raw 12 --------- - 10 N d q T 500 1000 1500 2000 2500 3000 3500 gpm 1900 3800 5700 7600 9500 11400 13300 1pm 7.5 10 fps I IIIIIIIIIIIIIIIIIIIIIJIMARM Inquire with governing authorities for local installation requirements It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes. I I LI I 1 I I I I J I I ill 1 I I I I 1 \WATFS® I A Watts Water Technologies Company USA: Tel: (978) 689-6066 • Fax: (978) 975-8350 • Watts.com Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • Watts.ca Latin America: Tel: (52) 81-1001-8600 • Fax: (52) 81-8000-7091 • Watts.com ES-757DCDA_757NDCDA 1503 0 2015 Watts u 0 CARLSBAD FIRE DEPARTMENT Fire Prevention Division 1635 Faraday Avenue - Carlsbad, CA 92008 760.602.4665 WATER AVAILABILITY FORM SECTION A: TO BE COMPLETED BY CUSTOMER PROJECT NAME: Carlsbad Oaks SR#: (Assigned upon plan submittal) PROJECT ADDRESS: Lot 13 CITY: Carlsbad PHONE: ( 760) 745-81185 x231 (Excel Engineering) FAX NUMBER: I Largest Building (ft.2) Sprinkled? Construction Type: SECTION B: TO BE COMPLETED BY LOCAL WATER COMPANY. CUSTOMER TO PROVIDE RESULTS TO CFD. Water Purveyor: City of Carlsbad Location of test (reference map required): Whiptail Loop East, north of Faraday Ave TEST INFORMATION IS VALID FOR 6 MONTHS FROM DATE PERFORMED Flow Test Results Static pressure: 132 PSI Hydrant Number (if applicable):H61680 Elevation of test 395 Feet bate/Time of Test1 'itot Tube Reading: PSI 'Corresponding Flow: GPM Total Flow: 3,500 GPM Residual Pressure 126 PSI Atpeakdemand, this water system is capable of providing a fire flow discharge @ 20 psi of more than 8,000 gpm. 'Test to be performed as close as possible to the time the most conservative flows and pressures are expected. Note: If the water availability information was obtained in a manner other than a flow test (i.e. computer modeling), fill out the information above as applicable and check here: x Name: Jennifer R.Mael.P.E. Eng. Lic. No. (if applicable): C69606 Signature:____________________________________ Title/Org: Prci/Manaer Date: 04/04/2016 I I I I 1 [Ti I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I Whiptail Loop E - Lots 7, 8, & 13 rn a 84 U. /7 a a 7 a H61680 61681 OUCT \-4~,61682 1/ a FADAYV Prepared By: Jennifer R. Mael, P.E. - MCS Date: Monday, April 04, 2016 Attachment 4 - Pipeline Velocities Network Table - Links Link ID Length ft Diameter in Flow GPM Velocity fps Pump 1 #NIA #NIA 3500.00 0.00 Pipe 37 22.81 8 0.00 0.00 Pipe 21 12.5 6 0.00 0.00 Pipe 53 32.08 6 0.00 0.00 Pipe 34 23.64 6 0.00 0.00 Pipe 32 37 8 0.00 0.00 Pipe 5 13 6 0.00 0.00 Pipe 13 25.05 6 0.00 0.00 Pipe 29 34.39 6 0.00 0.00 Pipe 52 23.21 6 0.00 0.00 Pipe 8 13 6 0.00 0.00 Pipe 27 23.31 8 0.00 0.00 Pipe 36 43.35 8 0.00 0.00 Pipe 25 28.75 8 0.00 0.00 Pipe 26 31.33 8 0.00 0.00 Pipe 2 23 6 0.00 0.00 Pipe 7 83.88 10 1592.99 6.51 Pipe 9 108.22 10 1592.99 6.51 Pipe 10 49.88 10 1592.99 6.51 Pipe 30 28.01 10 -1592.99 6.51 Pipe 3 133.16 10 1592.99 6.51 Pipe 4 95.84 10 1592.99 6.51 Pipe 6 178.64 10 1592.99 6.51 Pipe 11 20 10 1592.99 6.51 Pipe 16 185.37 10 1592.99 6.51 I I I I i I I I I I I I I I I I I Attachment 4 - Pipeline Velocities Link ID Length ft Diameter in Flow GPM Velocity fps Pipe 17 20 10 1592.99 6.51 Pipe 18 82.36 10 1592.99 6.51 Pipe 14 17.93 10 1592.99 6.51 Pipe 28 171.8 10 -1592.99 6.51 Pipe 15 26.13 10 1592.99 6.51 Pipe 41 116.39 10 1592.99 6.51 Pipe 40 57.22 10 1592.99 6.51 Pipe 45 45.64 10 1592.99 6.51 Pipe 22 30.81 10 -1907.01 7.79 Pipe 23 85.04 10 -1907.01 7.79 Pipe 24 32.89 10 -1907.01 7.79 Pipe 20 327 10 -1907.01 7.79 Pipe 49 63.39 10 -1907.01 7.79 Pipe 50 56.48 10 -1907.01 7.79 Pipe 51 116.84 10 -1907.01 7.79 Pipe 31 12.53 10 -1907.01 7.79 Pipe 43 20.23 10 -1907.01 7.79 Pipe 42 31.94 10 -1907.01 7.79 Pipe 33 37.48 10 -1907.01 7.79 Pipe 48 7.08 10 -1907.01 7.79 Pipe 47 96.07 10 -1907.01 7.79 Pipe 44 67.77 10 -1907.01 7.79 Pipe 46 32.38 10 -1907.01 7.79 Pipe 59 54.57 12 3500.00 9.93 Pipe 39 16.26 12 3500.00 9.93 Pipe 38 5.10 12 3500.00 9.93 I I I I LI i I I I I I LI I L] I I I Attachment 4 - Pipeline Velocities Link ID Length ft Diameter in Flow GPM Velocity fps Pipe 58 1 12 3500.00 9.93 Pipe 57 16.31 12 -3500.00 9.93 Valve 35 #N/A 10 3500.00 14.30 Pipe 19 13 6 3500.00 39.72 I I I Li I [1 1 Fill, I Id I I I I I LI F1 I EPA NET 2 I Page 1 Attachment 5 - Pressure Values Network Table - Nodes Node ID Elevation ft Demand GPM Head ft Pressure psi Resvr48 399.65 -3500.00 399.65 0.00 Junc 20 411.02 3500.00 646.99 102.25 Junc 19 405.81 0.00 654.52 107.77 June 18 405.97 0.00 655.44 108.10 Junc 22 409.38 0.00 659.63 108.43 June 17 405.31 0.00 655.66 108.48 Junc 14 404.72 0.00 658.23 109.85 Junc 21 403.86 0.00 659.63 110.82 Junc 9 406.62 0.00 662.46 110.86 Junc 23 403.77 0.00 660.11 111.07 June 16 400.25 0.00 657.74 111.57 June 12 402.69 0.00 660.47 111.70 Junc 11 402.56 0.00 660.69 111.85 Junc 50 402.01 0.00 660.16 111.85 Junc 51 402.01 0.00 660.16 111.85 June 15 399.54 0.00 658.03 112.00 June 10 402.25 0.00 661.25 112.23 June 13 399.05 0.00 658.23 112.30 Junc 24 402.22 0.00 661.44 112.32 Junc 31 403.32 0.00 663.05 112.54 June 6 404.90 0.00 665.40 112.88 Junc 27 401.42 0.00 661.95 112.89 Junc 28 401.42 0.00 661.95 112.89 June 8 401.59 0.00 662.46 113.04 rJu7nc25 400.67 0.00 661.95 113.21 I I I I I I I I I I I I I I $ I EPA NET 2 I Page 2 Attachment 5 - Pressure Values Node ID Elevation ft Demand GPM Head ft Pressure psi June 26 400.59 0.00 661.95 113.25 June 44 400.34 0.00 662.06 113.40 June 35 404.6 0.00 666.54 113.50 June 7 401.07 0.00 663.40 113.67 June 46 399.92 0.00 663.05 114.01 June 30 399.52 0.00 663.05 114.19 June 29 399.18 0.00 663.05 114.34 June 32 398.94 0.00 663.25 114.52 June 3 403.43 0.00 667.97 114.62 June 5 399.96 0.00 665.40 115.02 June 45 397.88 0.00 664.13 115.37 June 38 400.66 0.00 667.35 115.56 June 37 400.66 0.00 667.35 115.56 June 399.37 0.00 666.47 115.74 June 33 398.60 0.00 665.95 115.84 June 42 399.91 0.00 667.86 116.10 June 34 397.51 0.00 666.54 116.57 June 2 398.76 0.00 667.97 116.65 June 36 398.02 0.00 667.35 116.70 June 41 396.83 0.00 667.04 117.08 June 39 398.75 0.00 669.36 117.26 June 40 398.23 0.00 669.27 117.44 June 1 398.2 0.00 669.91 117.73 June 43 398.16 0.00 670.42 117.97 June 58 398 0.00 671.50 118.51 June 56 398 0.00 671.52 118.52 I I I I I ii :i I I I I I I I I I I I Attachment 5 - Pressure Values Node ID Elevation ft Demand GPM Head ft Pressure psi Junc55 398 0.00 671.84 118.66 June 57 398 0.00 690.65 126.80 Junc47 398 0.00 690.75 126.85 June 54 0 0.00 690.33 299.12 I I I I I I I I I I I I I I I I I I EPA NET 2 I Page 3