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t l t t t i t t t t l t t t t t [ t <br /> RBCA SITE ASSESSMENT <br /> Tier 1 Worksheet 8.2 <br /> Slee Name:Stockton Fire Station*3 Site Locabon:1116 First Street Stockton CA Completed By:JEANNE HOMSEY Date Completed:3/14/2000 4 OF 4 <br /> TIER 1 PATHWAY RISK CALCULATION <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(mg/kg/day) Reference Dose Hazard Quotient(5)/(6) <br /> Carcinogenic On-Site On-Site Onsite On-Site <br /> Constituents of Concem Classification Commercial "-1 Commercial Commercial m -da Commercial <br /> Benzene A 1.4E-4 1.0E-1 1.4E-5 <br /> Ett1 (benzene D 3.2E-5 1.0E-1 3.2E-4 <br /> Methyl II-Butyl Ether 5.1 E 4 I 5.0E-3 I 1.0E-1 <br /> Toluene D 1.4E-4 2.0E-1 7.2E-4 <br /> Xylene mixed isomersD 6.3E-4 2.0E+0 3.1E-4 <br /> Total Pathway Carcinogenic Risk= I 1.4E-6 0.0E+0 Total Pathway Hazard Index= 1.0E-1 0.0E+0 <br /> Software: GSI RBCA Spreadsheet Serial: G-313-VKX-542 <br /> O Groundwater Services,Inc.(GSI),1995-1997.All Rights Reserved. Version: 1.0.1 <br />