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r r t r r r r t r r r r t r r t r t <br /> C f <br /> Cumulative Risk Worksheet <br /> Site Name:McDowell and Davis Towing,1360 Escalo Completed By:Robert Fourt,CEG!CHG <br /> Site Location:Escaion,San Joaquin County,CA Date Completed:5112/2002 1 OF 3 <br /> CUMULATIVE RISK WORKSHEET <br /> CONSTITUENTS OF CONCERN Representative Concentration Proposed CRF Resultant Target Concentration <br /> Surface of u su ace Groundwater u su ace Surface boll bubsurface Soil Groundwater <br /> CAS No. Name (mglkg) Soil (mg1L) Surface Soil Soil GW (mglkg) (mglkg) (mglL) <br /> 71-43-2 Benzene 1.0E-4 4.3E-1 1.1 E-2 1.0E-4 4.3E-1 1.1 E-2 <br /> 100-41-4 Eth (benzene 1.0E-4 2.6E+1 2.6E-3 1.0E-4 2.6E+1 2.6E-3 <br /> 1634-04-4 Methyl t-Bu I Ether 1.0E-4 4.4E+1 1,0E-4 1.0E-4 4.4E+1 1.0E-4 <br /> 108-88-3 Toluene 1.0E-4 6.0E+1 3.9E-3 1.0E-4 6.0E+1 3.9E-3 <br /> 1330-20-7 X lene mixed isomers 1.0E-4 2.0E+3 1.1 E-2 1.0E-4 2.0E+3 1.1E-2 <br /> Cumulative Values: Cumulative Risk Goals Exceeded? <br /> ■ Yes ❑ No <br /> Software: GSI RBCA Spreadsheet Serial: G-491-EFX-672 <br /> 0 Groundwater Services,tnc.(GSH 1995-1997. All Rights Reserved, Version: 1.0.1 <br />