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RBCA SITE ASSESSMENT <br /> CumuEatWe Risk Worksheet <br /> Site Name Tobte3-4 Completed By Denise Clendening <br /> Sde Location 1000 feet Date Com leted 1/1/1999 3 OF 3 <br /> Cumulative Target Risk 0 OE+O Target Hazard Index O OE+O <br /> CUMULATWE RISK WORKSHEET Groundwater DAF Option Domenico First Order <br /> OFF-SITE RECEPTORS <br /> Outdoor Air Groundwater <br /> Residential Exposure Residential Exposure <br /> Target Risk Target HO Target Risk Target HO <br /> CONSTITUENTS OF CONCERN 1 DE-611 OE-5 1 OE+O 1 OE-611 OE-5 1 0E+0 <br /> Carcinogenic Hazard Carmnogenic Hazard <br /> CAS No Name Risk Quotient Risk quobent <br /> 71-43-2 Benzene 6 8E-9 9 412-5 7 7E-61 6 OE-57 <br /> 67-66-3 Chloroform 0 OE+O 1 3E-71 4 9E-67 <br /> 107-06-2 Dlchloroethane 1,2- 0 OE+O 0 OE+O 1 7E-64 <br /> 100-41-4 Eth (benzene 9 6E-6 2 6E-64 <br /> 1634-04-4 Metht-Butyl Ether 0 OE+O 0 OE+O 0 OE+O <br /> 91-20-3 Naphthalene 1 4E-100 <br /> 1 OD-42-5 Styrene 0 OE+O 1 2E-104 <br /> 127-18-4Tetmchloroethene 0 OE+O 1 2E-88 5 3E-85 <br /> 108-88-3 Toluene 5 2E-5 1 2E-68 <br /> 1330-20-7 X lens mixed Isomers 4 7E-5 7 7E-80 <br /> CUMUISUVO!/eltres B SE-9 01 2 OE-4 e 7 7E-61 @I 6 o7 m <br /> o I+kd"Alk 19wd u ead it Leugat Ask <br /> Software OSI RBCA Spreadsheet Serial 0 373-ZOX-798 <br /> 0 Groundwater Services,Inc (GSI) 1995-1997 Version 10 1 <br /> I I <br /> 4L� � i <br />