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MCR ENGINEERING <br /> 1242 Dupont Court JOB: 19-011 French Camp Elementary <br /> Manteca,CA 95336 SHEET: 1 of 1 <br /> (209)239-6229 BY: DB <br /> FAX(209)239-8839 DATE: 1/4/2021 <br /> Student/Staff Max Design Flowrates **Max Flowrates&Volumes Per the California Plumbing Code <br /> Quantfty Duration(min) Uses Gal/Day <br /> Water Closets 1 N/A 1.28 3 3.84 <br /> Public Lavatory Faucet 1 0.5 N/A 0.33 10 1.67 <br /> Floor Mounted Urinal 1 N/A 0.5 5 2.50 <br /> Drinking Fountains 1 - - 1.00 <br /> Total Volume Per Day= 9.01 <br /> Proposed AverasEe Daily Flowrates **Per Max Design Flowrate <br /> Design Volume Per Person= 10 gal/day #Staff/Room= 1 <br /> #of Rooms= 8 #Students/Room= 18 <br /> Total Design Average Daily Flowrate= 1,520 <br /> **Per San Joaquin County OWTS Standards. Existing Septic Daily Flow <br /> Septic Tank-DesiEn Calculations Per Approved Ex.Septic Calculations <br /> Proposed Average Daily Flow= 1,520 gal Base Tank Capacity= 1 gal <br /> Ex.Average Daily Flow= 3,250 gal Req.Percolation Volume= 5 970 gal <br /> Design Average Daily Flow= 4,770 gal Calculated Tank Capacity= 4,703 gal <br /> Leach Line- OWTS STD Calculations "Per San Joaquin CountyOWTSStandards <br /> Soil Type= <br /> Soil Factor= I <br /> Pipe Diameter= rinRequired Length= 1 43 Ex.Leach Field= 400 ft <br /> Max Se ent Len = Remaining Leach Field Reg.=1 943 Ift <br /> Filter Bed - OWTS STD Calculations **Per San Joaquin County OWTS Standards <br /> Leach Lines Required Length= 943 ft <br /> Filter Bed Factor= <br /> Minimum Required Area= 3,301 sf <br /> Design Length= 100 ft <br /> Minimum Required Width= 33 ft <br /> Minimum Required Leach Lines= 3 <br /> Design Leach Lines= 3 <br />