Laserfiche WebLink
Table 5. Estimated Excess Lifetime Cancer Risks and Noncarcinogenic Hazards, Chevron Fuel Terminal 1001621, Banta, California <br /> Equations: <br /> Onsite Workers <br /> Risk=CSF x C1,,01;,,9 x 1/CF x(IRA,,x EF,x ED.)/(BW,,,,,x AT) <br /> Hazard =(1/RfD)x C1111d,19 x 1/CF x(IRAw x EF,x EDw)/(BW,,,,,x AT,,-,) <br /> Infinite Source Adult Onsite Office Workers <br /> Building Concentration Excess Cancer Noncancer <br /> Chemical Cbm1d1n9`(Ng/m3) Risk Estimate Risk Estimate <br /> Benzene 1.99E+00 1.4E-05 4.5E-02 <br /> Ethylbenzene 2.42E-01 NC 1.7E-04 <br /> Methyl-tert-butylether 4.45E-01 2.8E-08 1.0E-04 <br /> XylToluene 3.47E-02 NC 4.7E-06 <br /> enes 6.40E-01 NC 4.4E-03 <br /> Total 1.E-06 5.E-02 <br /> Notes: <br /> Indoor air chemical concentrations were predicted from maximum groundwater concentrations collected beneath the onsite office. See Table 1. <br /> s Source: USEPA's(2003) GW-SCREEN model Version 3.0 modified by Cal/EPA's HERD on 1/21/05. <br /> See Attachment A for GW-SCREEN model worksheets. <br /> NC=Noncarcinogen. <br /> NA= Not available. <br /> 7/18/2007 <br /> G:\DIV 11\D0007\1001621_004711100_Tier I RBCA Evaluation Tables.xls <br /> Page 1 of 1 <br />