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rr � ttttttttu� >•r r t•r r � r wr r■s tater r r .r .� .•� <br /> i <br /> RBCA Tool Kit for Chemical Releases,Version 1.3 <br /> RBCA SITE ASSESSMENT <br /> 4 OF 7 <br /> TIER I EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> QT000)3 mR EXP6t URE PATHWAYS - <br /> SUBSURFACE SOILS(33•0 rt): <br /> VAPOR INHALATION (conVd) 4)Exposure Multiplier 5)Average inhalation Exposure <br /> (EFxED)/(ATx3135) (unitless) Concentration(mg/m"3)(3)X(4) <br /> Off-site 1 Off-siie 2 OOff-site 1 Off-site 2 <br /> On-site(0 ft)} (0 ft) (0 g) n-s+te(0 fl) (0 ft) (0 ft) <br /> Constituents of Concern None NA NA None NA NA <br /> Benzene <br /> Toluene <br /> Ethylbenzene <br /> Xylene (mixed isomers) <br /> Methyl t-But l ether <br /> NOTE: AT=Averaging time(days) EF=Exposure frequency(days/yr) ED= Exposure duration(yr) <br /> Site Name:Canepa`s Car Wash Date Completed: B-Oct-02 <br /> Site Location: Pacific Ave.,Stockton Job ID: 1707 <br /> Completed By: LHM <br />