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Sanguinettl Investments,Circle K <br /> Project Number: LGSOSOS46 <br /> December 17,2008 <br /> Required Length of Leaching Trench: <br /> Length (ft) = 1,627 sf/5.5 sf per lineal foot/2 feet per side = <br /> Length (ft) = 148 fee_t leaching trench'required <br /> 148 feet trench-i -proposed, four(4)_38_.f00t lines_Si veen'(7)=feet ifi depth = .Z Po <br /> Calculation for Determining Liable Cellulose Volume <br /> The ratio between nitrate and required carbon was determined using the chemical relationship <br /> for denitrification: <br /> 4NO3 +5CH2O + 4H* —> 2N2 (g) + 5CO2 (g) + 7H2O <br /> Using stoichiometry,<a'weight ratio:ofAA30 of Nitrate (NO3)r6Carbon (Q.-Was calculated. It <br /> was determined that approximately'1-125-pounds of-nitrate-would-be generated'at=the facility-in <br /> a!5 year-period-requiring appr6ximately`4,646-pounds'6f-cellulose (woodchips or sawdust). <br /> Using a''density,of.l5apounds per�cubic.foot.fof loose sawdust approximately:11:5-j(ifds ofl <br /> Woodchips or sawdust willibe required.forwplacement into the bottom:of,four.(4) trenches <br /> during construction-or-2.9-yards in-each trench: :;This is in addition to applying four (4) <br /> inches of loose compost in the bottom of the four (4) trenches. Supplemental cellulose, in <br /> addition to carbon in the effluent and compost in the bottom of the line, should provide a long <br /> term supply of carbon for the bacteria. Please refer to the plans for dimensions of the disposal <br /> trench. <br /> Septic Tank Volume <br /> Based on San Joaquin Standards, for a total maximum daily flow of 1,155 gallons, the required <br /> septic tank volume will be 2,355 gallons (1200 gallons Base tank capacity + 1,155 gallons total <br /> ^- � ' ^7-� <br /> maximum daily flow = 2,355 gallons) ue to-the-concerns-of potentialhigh'use'of the facility. <br /> 1by=the:EHD;�the septic tan k-volumes.were.-increasedAo.an,overall.retention:ratio.of;3.5 for...a <br /> totallseptic tank volume of.`�;000:gallons (two,2.,000. gallons tanks) anda,11200—gallon pump <br /> tank'EGenerally�a septic tank retention ratio of 3 to.5 is satisfactory. <br /> Available Surge Flow into Seepage Pits: <br /> W seepage_:pits,,42=inch.diameter, 25 feet deep each, filled with 3/4 to 2 inch gravel. <br /> (dia)n2 *pi *depth = volume(cf) <br /> Gallons(gals) = volume(cf) *7.48 gallons/cf <br /> Porosity= 15 percent(porosity is the open space between the gravel rock in the pits) <br /> 4 <br /> 902 Industrial Way•Lodi,CA 95240.209.367.3701•Fax 209.369.4228 <br /> y 50 Goldenland Ct.,Suite 100 •Sacramento,CA 95834.916.928.4690•Fax 916.928.4697 40AO <br /> I 1190 Burnett Ave.,Suite A•Concord,CA 94520.925.60R 7224•Fax 925.609.6324 <br /> 80 N. West Street•Fernley,NV 89408. 775.575.6511•Fax 775,5 75-2652 02007 Neil O.Anderson&Associates,Inc. <br /> t <br />