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= 4r <br /> i <br /> ` Cumulative Risk Worksheet <br /> Site Name Table3-4 Completed By Denise Clendenwng <br /> Site Location 500 feet Date Completed 1!1/1999 1 OF 3 <br /> CUMULATIVE RISK WORKSHEET <br /> CONSTITUENTS OF CONCERN Representative Concentration Proposad CRF Resultant Target Concentration <br /> Surface o- u u aceroan er Subsurface Surface Soil u u ace or roun er <br /> CAS No Name Sod m Surface Sod Solt GW m m m <br /> 7143-2 Benzene 71 E-1 6 6E-1 8 5E+0 <1 41 <1 7 IE-1 6 6E-1 8 5E+0 <br /> 67-66-3 Chloroform 0 0E+0 0 OE+O 8 OE-4 41 0 0E+0 0 OE+O 8 OE-4 <br /> 107-06-2 Dcchloroethane, 1,2- 0 OE+O 0 OE+O 4 6E-1 tT 41 10 0 OE+O 0 OE+O 4 6E-1 <br /> 100-414 Eth (benzene 1 4E+1 91 E+O 1 1 E+O 4, 1 4E+1 91 E+O 1 1E+0 <br /> 1634-04-4 Meth I t-Butyl Ether 0 OE+O 0 OE+O 0 CE+0 , ; , 0 OE+O 0 OE+O 0 OE+O <br /> 91-20-3 Naphthalene 0 OE+O 0 OE+O 2 OE-1 0 OE+O 0 OE+O 2 OE-1 <br /> 100-42-5 Styrene 0 OE+O 0 OE+O 9 OE-4 41:1 1 0 OE+O 0 OE+O 9 OE-4 <br /> 127-184 Tetrachloroethene 0 OE+O 0 OE+O 6 OE-4 4r 0 OE+O 0 OE+O 6 OE4 <br /> 108-88-3 Toluene 2 6E+1 2 5E+1 1 3E+11 2 6E+1 2 5E+1 1 3E+1 <br /> 1330-20-7 Xylene mixed Isomers 5 0E+1 3 0E+1 51 E+011 l 5 0E+1 3 0E+1 51 E+U <br /> Cumulative values Cumulative Risk Goals Erceeded7 <br /> D Yes M Wo <br /> Software GSI RBCA Spreadsheet �Senal G�37320X 788 <br /> O Groundwater Seances Inc (GSI} 19WI997 All Rights Reserved Version 10 1 <br />