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RBCA Tool Kit for Chemical Releases,Version 1.3 <br /> RBCA SITE ASSESSMENT <br /> 1 OF 10 <br /> TIER 2 PATHWAY RISK CALCULATION <br /> �tJTdOOR AIR EXPOSURE PATHWAYS.-: wi (CHECKED IF"PATH WAYS ARE ACTIVE) <br /> CARCINOGENIC RISK <br /> (1)EPA (2)Total Carcinogenic (3)Inhalation (4)Individual'COC Risk ' <br /> Carcinogenic Exposure(maim^3) Unit Risk (2)x(3)x 1000 <br /> Classification On-site(o ft) Off-site 1 Off-site 2 Factor On-site(0 ft) Off-site 1 Off-site 2 <br /> (o ft) (o ft) (Ng/m13)"-1 (o ft) (0 ft) <br /> Construction Construction <br /> Residential None None Residential Worker None None <br /> Constituents of Concern worker - <br /> Benzene A 1.4E-8 8.3E-6 1.1E-10 <br /> Ethylbenzene D <br /> Toluene D <br /> Xylene (mixed isomers) D <br /> TPH-Aliph>C16-C21 D <br /> TPH-Aliph >C21-C34 D <br /> TPH-Arom >C16-C21 D <br /> TPH-Arom >C21-C35 D <br /> TPH-Aliph >C12-C16 D <br /> TPH-Aram >C12-C16 D <br /> Tota!Pathway Carcinogenic Risk= 1.1E-10 <br /> Site Name: Heritage Square Completed By:Lee H.Morse Job 07 3572E <br /> Site Location:640 N.San Joaquin Street, Stockton, CA Dale Completed:20-Sep-02 <br />