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• i � <br /> APPENDIX K <br /> POST-REMEDIATION <br /> ESTIMATED MASS CALCULATIONS IN SOIL AND GROUNDWATER <br /> Jackpot Food Mart <br /> 14000 East Highway 88 <br /> Lockeford,California <br /> TPHg MASS IN SOIL <br /> Assumptions used for calculation below are shown on attached Back-up Calculation page <br /> P = V (ft) x soil density (Ibslft3) x kg/2 205(lbs) x X (mglkg) x lb1453,592(mg) <br /> AREA 1 AREA 2 <br /> CONTAMINANT TPHg TPHg <br /> X- CONTAMINANT CONCENTRATION (mg/kg) = 16660 2788 <br /> D-AVERAGE SOIL DENSITY(Ibs/ft^3) = 129 129 <br /> A- IMPACTED AREA(ft"2) = 2,450 1,176 <br /> (70'X 35'Area) (28'X 42'Area) <br /> H - HEIGHT OF IMPACTED AREA(ft) = 15 35 <br /> (25-40 feet bgs) (40-75 feet bgs) <br /> P- POUNDS OF CONTAMINANT(lbs) = 7897 1480 <br /> Estimated Total Mass of Adsorbed 937 7 pounds+/-50% 468 8 to 1,406 5 Ibs <br /> Estimated Volume of Adsorbed 127 7 gallons+1-50% 63 9 to 191 6 gal <br /> TPHg Density= 7 34 lbs/gallon <br /> 11ProlectslTime OdlLockefordlTableslSCM&Asmt This x1s1Apx K-Mass Calcs Page 1 of 2 <br />