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M M M mbM r M M M Mir M <br /> RBCA SITE ASSESSMENT <br /> Tier 2 Worksheet 8 2 <br /> Site Name Table3-7 Site Location 500 feet Completed By Denise Clendenina Date Completed 1/111999 4 OF 4 <br /> TIER 2 PATHWAY RISK CALCULATION <br /> fl rWAILIf>d$ prtA <br /> CARCINOGENIC RISK TOXIC EFFECTS <br /> (2)Tdal Carcinogenic (3)Oral (4)Individual COC (5)Total Texicard (a)Oral <br /> M lndlNdual Cox; <br /> (1)EPA lntake Rata(mglkgMay) Slope Factor Risk(2)x(3) fntake Rate(mglkglday) Reference Dose Hazard Quotient(5)1(8) <br /> Carcinogenic <br /> Constituents of Coneam Classificadori Residential 1 Residential Residential __(mg?kg-dayj Residential <br /> Benzene A 2 1 E-35 1 OE-1 2 1 E-36 4 SE-35 3 OE-3 1 6E32 <br /> Chloroform B2 1 8E42 6 1E-3 1 1E44 4.2E-42 1 0E-2 4 2E40 <br /> Dichforoethane 1,2- 82 7 4E-38 91 E-2 6 7E-39 <br /> Ethylbenzene D 6 9E-38 1 OE 1 6 9E-37 <br /> Meth It-Butyl Ether 3 6E-36 1 2E-1 3 OE-35 <br /> Naphthalene D 2 8E-89 4 OE-3 7 CE-87 <br /> Styrene 2 5E-91 2 OE-1 1 3E-90 <br /> Tetrachloroethene C-82 5 3E-53 5 2E-2 2 8E-54 1 2E-52 1 0E-2 1 2E-50 <br /> Toluene I D 3 6E-40 2 OE-1 1 SE-39 <br /> Xylene mixed Isomers D 1 1 1 4 SE-46 1 2 0&0 2 4E-46 <br /> total Pathway Carcinogenic Rusk= 0 OE+0 Total Pathway Hazard Index a _ 0 OE+0 1 6E.32 <br /> Software 0SIABCASpread4mal SorialG-373-ZOX 798 <br /> 0 Groundwater Semmes Inc (GSI) 1995.1997 All Rights Reserved Version 10 1 <br />