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lie <br /> APPENDIX H <br /> GROUNDWATER MASS BALANCE CALCULATION <br /> Based on the assumption presented in the section entitledGroundwater Mass Balance Calculations, <br /> the mass of contaminant can be calculated using the following equation <br /> N`Kh C 1 + C 2 <br /> (Al -- A2) 2 (T)(r]) = Mass contaminant in Groundwater <br /> uW <br /> Al 1257 Area of outer isoconcentration area ft <br /> A2 Area of inner isoconcentration area ft <br /> C1 590 Concentration of outer isoconcentration µg/L <br /> C2 Concentration of inner isoconcentration µg/L <br /> T 10 Plume Thickness ft <br /> n 0 35 Solids <br /> _81-1 lbs of 11 MtBE 11remaining in groundwater <br /> 0106011 <br /> Chevron 9-2033 d�►► <br /> i <br />