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r ir M M M W r M 96M M M M M M m 4r M <br /> RBCA SITE ASSESSMENT <br /> Tier 2 Worksheet B 2 <br /> Site Name Table" Ske Location 1000 Leet Completed Denise Clenderting Date Com eted 1/1/1999 1 OF 4 <br /> TIER 2 PATHWAY RISK CALCULATION <br /> Ail PXP PRi'W4 > TCt WKW W P T1MfATS ARG <br /> CARCINOGENIC RISK TOXIC EFFECTS <br /> (2)Total Carcinogenic (3)Inhalation (4)tndmdual COC (5)Total Toxicant (6)lnhalahon (7)tndnidual COC <br /> (1)EPA intake Rate(mgAgfday) Slope Factor Risk(2)x(3) Intake Rata(mgtkgldoy) Reference Dose Hazard Quotient(5)1(� <br /> Carcinogenic OnSrte Off-Sits On Site Off-Site On Site OlfSite Onsite OflSitC <br /> Constituents of Concom Classfi=bon Commercial Residential 1 Commercial Residential Commercial Resrdentiel -da Commercial Residential <br /> Benzene A 4 3E-6 6 8E-8 1 OE4 4 3E-7 6 8E-9 1 2E-5 1 6E-7 1 7E-3 7 OE-3 9 4E-5 <br /> Chloroform 82 3 3E-10 0 0E+0 8 1E-2 2 7E-11 0 0E+0 <br /> Dlchloroethana 1.2- 132 9 8E-8 0 OE+O 9 1E-2 8 9E-9 0 OE+0 2 7E-7 0 OE+0 2 9E-3 9 6E-5 0 OE+0 <br /> EUbenzene D 1 SE4 2 7E-6 2 9E-1 51E-4 9 6E-6 <br /> Meth I-Butyl Ether 1 5E-9 0 OE+0 4 3E-4 63E-13 0 OE+O 4 1 E-9 0 0E+0 8 6E-1 4 8E-9 0 0E+0 <br /> Naphthalene D <br /> StVFen9 6 3E-10 0 0E+0 2 9E-1 2 2E-9 0 OE+0 <br /> Tetrachloroethane C-82 1 OE-9 0 OE+O 2 OE-3 2 1E-12 0 OE+0 <br /> Toluene D3 2E4 6 OE4 1 1E-1 2 BE-3 5 2E-5 <br /> X enc mixed!Somers D 5 DE-4 9 3E-6 1 2 OE-1 2 5E-3 4 7E� <br /> Tota]Pathway Carcinogenic Risk= 4 4E-7 6 8E-9 Tota!Pathway Hazard indeir 1 3E 2 2 0E-4 <br /> Software OW ASCA Spreadsheet Serial G 3YT70X <br /> OGroundwaterSemces Inc (GSI) 19851997 AllRrphtsReserved Vection 101 <br />