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1 <br /> ' APPENDIX I <br /> TPHc Mass Removal Calculations and Assumptions <br /> Tracy Pump Station <br /> 1 Tracy,San Joaquin County,California <br /> Average TPHc soil concentration from excavation area(in mg/kg) <br /> ' Not visually affected soil: 36.7 <br /> Visually affected soil: 5,033 <br /> Visually affected soil with separate phase oil: 65,500 <br /> 1 Excavated soil weight(kg) <br /> Not visually affected soil: 836,673 <br /> ' Visually affected soil: 1,394,456 <br /> Visually affected soil with separate phase oil: 1,255,010 <br /> Total excavated soil weight: 3,486,139 <br /> ' TPHc mass removed(lbs) <br /> Not visually affected soil: 67.6 <br /> Visually affected soil: 15,440 <br /> Visually affected soil with separate phase oil: 180,847 <br /> Total mass removed: 196,355 <br /> 1 <br /> Notes: <br /> ' The average TPHc soil concentration was calculated using all analytical data <br /> results from samples collected within the excavated area in zones that were <br /> not visually affected by hydrocarbons,visually affected zones or zones <br /> ' containing separate phase hydrocarbons. The sum of the mass removed <br /> firom each zone is the total mass removed during the excavation activities. <br /> I <br /> 1 SAIF <br /> 1 <br />