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San Joaquin County Commercial Standard <br /> Septic System Calculator <br /> ADF. Average Daily Flow based on estimated use based on section 6.1.15 (2003,Onsite Wastewater Sewage Standards). <br /> BTC: Base tank capacity,minimum of 1200 gallons(2003,Onsite Wastewater Sewage Standards). <br /> CTC: Calculated tank capacity,the sum of BTC and ADF.When over 1500 gallons per day ADF,calculated tank capacity,may be 75%of the ADF plus 1125 gals(2003,Onsite Wastewater Sewage Standard: <br /> LL: Leach line <br /> See equations below <br /> For Leach Lines Enter <br /> Enter soil factor 0.250 0.20 for sand or sandy loam. 0 225 tor silt andlor sandy clay loam,0.25 for clay andlor peat <br /> Enter ADF(gals) 750 <br /> Result Calculation <br /> Minimum CTC(gals) 1,950 Since ADF is less than 1500 gpd,ADF+1200=CTC,750+1200=1950 gals <br /> I otal calculated equilivant length of LL required(ft) 488 (BTC+ADF)'SF=LL,(1200+750)*0.25=488 feet total LL required <br /> ' Engineering Recommendations:Six(6)leach lines,88'each,2'wide with two(2)36"diameter seepage pits,25'deep,2.8 times standard leachiine length <br /> 'Septic Tank retention ratio: 5.3 days <br /> 70, �y0 <br /> June 30, 2008 <br /> LGS080518 <br /> Neil O. Anderson Assoicates, Inc. <br />