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MCR ENGINEERING Proposed Leach Field Calculations <br />1242 Dupont Court JOB: 17-074 Nile Garden Elementary <br />Manteca, CA 95336 ADDRESS: 5700 EAST NILE AVE, MANTECA, CA 95337 <br />(209) 239-6229 BY: DBMS <br />FAX (209) 239-8839 DATE: 7/12/2019 <br />Single Student/Staff Design Flowrate "Max Flowrates & Volumes Per the California Plumbing Code <br />uintityDuration (min) Uses GaUDav <br />Water Closets 1 N/A 1.28 3 3.84 <br />Public Lavatory Faucet 1 0.5 N/A 0.33 5 0.83 <br />Drinking Fountains 0.25 - 1 0.25 <br />Single Student Flowrate Per Day = 4.9 <br />Single Student Design Flowrate Per Day = 10.0 <br />Future School Total Average Daily Flowrates <br />Design Volume Per Person = gal/day <br /># of Rooms = 1 <br /># Staff/Room = 44 <br /># Students/Room = 1000 <br />Total Flowrate Per Day = 10,440.0 <br />ing Building (D) Average Daily Flowrates (To Separate System) <br />Design Volume Per Person = t gal/day # Staff/Room = 2 <br /># of Rooms = 4 # Students/Room = 30 <br />Total Flowrate Per Day = -1,280.0 <br />Total Proposed Average Daily Flowrate <br />Base Tank Capacity = 1 gal <br />Req. Percolation Volume = 10,360.0 gal <br />"Per San Joaquin County OWTS Standards <br />Total Design Average Daily Flowrate <br />Leach Line - Engineer Calculations "Percolation Rates By Condor (SICEHD App. k SR0080490) <br />Soil Percolation Rate (P) = 10 min/in Req. Percolation Area =sf <br />3.5 gal/sFday Trench Width =in <br />Required Length = 740 ft Trench Depth Below Pipe =in <br />Tench Area/LF =00 <br />sf <br />0ql <br />C1V� <br />OF CPa-�F/ <br />Pagel of 2 <br />