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Home My WebLink AboutFire Flow Analysis Fire Flow Analysis & Water Service Report for Second Street Apartments College Station, Texas January 2015 Prepared By: Schultz Engineering, LLC TBPE Firm Registration No. 12327 2730 Longmire, Suite A College Station, Texas 77845 979.764.3900 X10,,,100.04.4.40 F DEN L. DOYEN • 109835 _ �C NOV NAL ji 110516 FIRM # 12327 SCHULTZ ENGINEERING; LLO General Information Location: The development includes Block 20, Lots 1-8, W.C. Boyett Estate Partition, College Station, Texas. The project lots are located at the corner of Second Street and Cherry Street and at the corner of Cherry Street and Boyett Street. General Note: An 8"water line will connect to the existing 8"water line under the sidewalk on Second Street and extend to the proposed building. The 8" water line will be used for the fire line. Domestic and irrigation services will come off the 8" water line to serve the building and irrigation. The two existing fire hydrants will be used for hydrant flow. Land Use: Residential—Multi Family Design Criteria/Analysis Primary Water Supply: Existing 8"water line in Second&Cherry Streets and existing 6"water line in Boyett Street Domestic Demand: Fixture Units: 1281.6 Max. Demand Flow: 243 gpm-3"Water Meter Fire Flow: Second Street Apartments is proposed to have a 177,233 sf building. The building is proposed to be Type IIIA Construction per the International Building Code. In accordance with Table B105.1 of the International Fire Code,the minimum required fire hydrant flow is 6,000 gpm. The building is proposed to have fire sprinlder system; therefore the minimum required fire flow is reduced to 3,000 gpm. Existing System Pressure Tests:(Representative of the Flows and Pressures in the area)—Exhibit A Flow Hydrant: 500 Boyett(A-053) Flowrate: 1,300 gpm Static Hydrant:309 College Main(A-046) Static Pressure: 72 psi Residual Pressure: 65 psi Existing System Pressure Tests:(Representative of the Flows and Pressures in the area)—Exhibit B Flow Hydrant:404 Second(A-070) Flowrate: 1,275 gpm Static Hydrant: 309 College Main (A-046) Static Pressure: 72 psi Residual Pressure: 65 psi Exhibits: Exhibit A-Water System Flow Test Report Water System Analysis: The calculated flowrate at a residual pressure of 20 psi is calculated to be 3,839 gpm for the first system test and 3765 gpm for the second system test. The peak fire hydrant&domestic flow required for this site is 3,243 gpm, which is less than the existing systems maximum capacity,therefore meeting the residual pressure requirements of 20 psi for fire flow and 35 psi for domestic flow. Conclusion The existing system will provide the required water pressure and flowrate for both domestic and fire protection demands. EXHIBIT A College Station Utilities Reliable, Affordable, Community Owned Date test completed Monday December 22, 2014 Time completed 9:30 A.M. Test completed by Eugene Marshall Witness Justin Tam lin FLOW HYDRANT Location 500 Boyett Nozzle size 2.5 Hydrant number A-053 Pitot reading in PSI 60 Flow in G.P.M. 1300 STATIC HYDRANT Location 309 College Main Hydrant number A-046 Static PSI 72 Residual PSI 65 imuommommummimminiimmaiiimammi Comments Requested EXHIBIT B (Oita liege Station Utilities Reliable, Affordable, Community Owned Date test completed Monday December 22, 2014 Time completed 9:30 A.M. Test completed by Eugene Marshall Witness Justin Tam•lin FLOW HYDRANT Location 404 Second Nozzle size 2.5 Hydrant number A-070 Pitot reading in PSI 57 Flow in G.P.M. 1275 STATIC HYDRANT Location 309 College Main Hydrant number A-046 Static PSI 72 Residual PSI 65 4 Comments Requested Fire Flow Analysis & Water Service Report for Second Street Apartments College Station, Texas January 2015 Prepared By: Schultz Engineering, LLC TBPE Firm Registration No. 12327 2730 Longmire, Suite A College Station, Texas 77845 979.764.3900 '�0i"'sE, OF • iii*'io ...'v.. •* II *r .1* DEVEN L. DOYEN i It a 109835 i _ /.c ws .••" it • NAL AS 1105116 FIRM # 12327 SCHULTZ ENGINEERING, LLC General Information Location: The development includes Block 20, Lots 1-8, W.C. Boyett Estate Partition, College Station, Texas. The project lots are located at the corner of Second Street and Cherry Street and at the corner of Cherry Street and Boyett Street. General Note: An 8"water line will connect to the existing 8"water line under the sidewalk on Second Street and extend to the proposed building. The 8" water line will be used for the fire line. Domestic and irrigation services will come off the 8" water line to serve the building and irrigation. The two existing fire hydrants will be used for hydrant flow. Land Use: Residential—Multi Family Design Criteria/Analysis Primary Water Supply: Existing 8"water line in Second&Cherry Streets and existing 6"water line in Boyett Street Domestic Demand: Fixture Units: 1281.6 07\ ait Max.Demand Flow: 243 gpm-3"Water Meter � Com"`' as��s Fire Flow: Second Street Ap. • :its is proposed to have a 177,233 sf build' g. The o building is propose• to be Type IIIA Construction per the Interna onal Building n \C., Code. In accord. ce with Table B105.1 of the International Fir, Code,the (� minimum requir,d fire hydrant flow is 6,000 gpm. The bui •'s g is proposed to p0'G have fire sprinkle r system;therefore the,minimum re' -d fire flow is reduced 1 ` `1 to 3,000 gpm. Existing System Pressure Tests:(Representative of the Flows and Pressures in the area)—Exhibit A Flow Hydrant:500 Boyett(A-053) Flowrate: 1,300 gpm Static Hydrant:309 College Main(A-046) Static Pressure: 72 psi Residual Pressure: 65 psi Existing System Pressure Tests:(Representative of the Flows and Pressures in the area)—Exhibit B Flow Hydrant:404 Second(A-070) \��\ Flowrate: 1,275 gpm Static Hydrant:309 College Main(A-046) (0\\O. �) h Static Pressure: 72 psi �( Residual Pressure: 65 psi / \ Exhibits: Exhibit A-Water System Flow Test Report 1%\`A(4)' Water System Analysis: The calculated flowrate at a residual pressure of 20 psi is calculated to be 3,839 � ' gpm for the first system test and 3765 gpm for the second system test. The peak C`v /I fire hydrant&domestic flow required for this site is 3,243 gpm,which is less Athan the existing systems maximum capacity,therefore meeting the residual pressure requirements of 20 psi for fire flow and 35 psi for domestic flow. oncl , i n systemwill provide existing the required water pressure and flowrate for _9} \ �u �� _\ s<', both domestic and fire protection demands. EXHIBIT A CiCii College Station Utilities Reliable,Affordable, Community Owned Date test completed Monday December 22, 2014 Time completed 9:30 A.M. Test completed by Eugene Marshall Witness Justin Tam•lin FLOW HYDRANT Location 500 Boyett Nozzle size 2.5 Hydrant number A-053 Pitot reading in PSI 60 Flow in G.P.M. 1300 STATIC HYDRANT Location 309 College Main Hydrant number A-046 Static PSI 72 Residual PSI 65 Comments Requested EXHIBIT B col a Station [Militias Reliable,Affordable, Community Owned Date test completed Monday December 22, 2014 Time completed 9:30 A.M. Test completed by Eugene Marshall Witness Justin Tamplin FLOW HYDRANT Location 404 Second Nozzle size 2.5 Hydrant number A-070 Pitot reading in PSI 57 Flow in G.P.M. 1275 STATIC HYDRANT Location 309 College Main Hydrant number A-046 Static PSI 72 Residual PSI 65 Comments Requested