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RBCASITE ASSESSMENTTter 2 Worksheet B 2 <br /> Site Name Three Palms Grocery Sde Location 6732 East Highway 68 Stockton CA Completed By JEANNE HOMSEY Date Com toted 9/5/2001 4 OF4 <br /> TIER 2 PATHWAY RISK CALCULATION <br /> MVori.;y,*`p. <br /> CARCINOGENIC RISK TOXIC EFFECTS <br /> (2)Total Carcinogenic (3)Oral (4)Individual COC (5)Total Toxicant (6)Oral (7)Individual COC <br /> (1)EPA Intake Rate(mg/kg/day) Slope Factor Risk(2)x(3) Intake Rate(mgfkglday) Reference Dose Hazard Quotient(5)1(8) <br /> Carcinogenic Onsite On Site On Site On-S to <br /> Constituents of Concern Classification Residential 1 Residential Residential ftft-day) Residential <br /> Benzene A 7 6E-6 1 OE-1 7 6E-7 <br /> Eth (benzene D 5 1E-5 I CE-1 51E4 <br /> Meth t-Buryl Ether 3 2E4 5 OE-3 6 4E-2 <br /> Toluene D 4 9E-5 2 OE-1 2 4124 <br /> X lene mixed isomers D 6 OE-5 2 OE+G 3 OE-5 <br /> Total Pathway Carcinogenk Risk 7 6E-7 0 OE+O Total Pathway Hazard Index a 6 6E-2 0 OE+0-71 <br /> Software GSI RBCA Spreadsheet Serial GG313•VKX 542 <br /> O Groundwater Semces Inc (GSI) 199&1997 Alt Rights Reserved Version 10 1 <br />