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1 <br /> Le <br /> I <br /> CALCULATION OF HYDROCARBON MASS DISSOLVED IN GROUNDWATER <br /> Chevron Station#9-2396 <br /> 25651 North Highway 99 <br /> Acampo,CA <br />' These mass calculations were based on Figure 8 <br /> Maximum MtBE concentration was used thoroughout the calculation at the site <br />' Plume Size Approxmmately 3,750 square feet area and approximatley 10 ft vertically <br /> Maximum MtBE concentration of 13 ug/l <br /> Specific gravity of MtBE=62 4,Specific weight of MtBe=46 2 lbs <br />' Volume(V)of water in Plume =(A*H*N)_(3,750 ft'* 1011*0 35)=13,125 ft' <br /> = 13,125 W*28 32=371,700 L <br /> =371,700 L*0 013 mg=4,832 1 mg=4 83 g <br /> =483 g*22fl5E'=00107lbs <br />' =(0 0107 lbs/46 2 lbs)*7 48=1 73E 3 gallons <br /> CON'T'AMINANT MtBE <br />' X-CONTAMINANT CONCENTRATION(mg/L) = 0 013 <br /> N-POROSITY(%) = 035 <br />' A-IMPACTED AREA(e) = 3,750 <br /> H-HEIGHT OF IMPACTED AREA(ft) = 10 <br /> P-POUNDS OF CONTAMINANT(lbs) = 00107 <br /> Estimated Total Mass of Dissolved Hydrocarbons 0 0107 pounds <br /> Estimated Volume of Dissolved Hydrocarbons 0 00173 gallons <br />