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02 <br /> Cumulative Risk Worksheet <br /> Site Name:McDowell and Davis Towing,1360 Escalon Completed 8y:Robert Fourt,CEG t CHG r <br /> Site Location:Escalon,San Joaquin County,CA Date Completed:11115/2003 1 OF 3 <br /> CUMULATIVE RISK WORKSHEET <br /> CONSTITUENTS OF CONCERN Representative Concentration Proposed CRF Resultant Target Concentration <br /> Surface Soil Soil Groundmut r Subsurface Sum Soil bj u r1ocu SiAl I lnundihr <br /> CAS No. Name (mg/kg) mglkg (mglL) (m !kg m Ikg (mglL) <br /> Surface Soil Soil GW <br /> 71-43-2 Benzene 1.0E-4 4.4E-3 4.6E-3 1.0E-4 4.4E-3 4.6E-3 <br /> 100-41-4 Eth (benzene 1.0E 4 2,6E-1 4.0E-3 1.0E-4 2.6E-1 4.0E-3 <br /> 1634-04-4 Meth I t-Bu I Ether 1.0E-4 4.5E-1 1.0E-4 1.0E 4 4.5E-1 1.0E 4 <br /> 108-88-3 Toluene 1.0E-4 6.1 E-1 9.5E-3 1.0E 4 6.1 E-1 9.5E-3 <br /> 1330-20-7 X lene mixed isomers 1.0E-4 2.1 E+0 8.8E-3 1.0E-4 2.1 E+O 8.8E-3 <br /> Cumulative Values: Cumulative Risk Goals Exceeded? <br /> ❑ Yes Il No <br /> Software: GSI RBCA Spreadsheet Serial: G-491-EFX-872 <br /> ®Groundwater Services,Inc.(GSI),19951997. All Rights Reserved. Version: 1.0.1 <br /> 1 <br /> F <br /> I <br />