Laserfiche WebLink
RBCA Tool Kit for Chemical Releases,Vefsion 1.3 <br /> RBCA SITE ASSESSMENT <br /> 2OF7 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> Ou#60R.AfR EXPOSURE PATHWAYS':, <br /> SURFACE SOILS(10-20 ft): <br /> VAPOR INHALATION(cont'd) 4)Exposure Multiplier 5)Average Inhalation Exposure <br /> (EFxED)/(ATx365) (unilless) Concentration(mglm13)(3)X(4) <br /> Off-site 1 Off-site 2 Off-site 1 Off-site 2 <br /> On-site(o ft} (o n) (a ft) on-site{o ft) <br /> (a tt) (o ft) <br /> Residential Construction None None Residential Construction None None <br /> Constituents of Concern Worker Worker <br /> Benzene 4.1 E-1 1.3E-8 <br /> Ethylbenzene 9.6E-1 1.4E-7 <br /> Toluene 9.6E-1 22E-7 <br /> Xylene(mixed isomers) 9.6E-1 1.6E-6 <br /> TPH-Aliph>C16-C21 9.6E-1 8.6E-4 <br /> TPH-Aliph >C21-C34 9.6E-1 5.5E-3 <br /> TPH -Aram >C16-C21 9.6E-1 4.0E-4 <br /> TPH-Arom >C21-C35 9.6E-1 5.6E-4 <br /> TPH -Aliph >C12-C16 9.6E-1 3.1E-3 <br /> TPH -Arom >C12-C16 9.6E-1 1.1E-3 <br /> NOTE: AT=Averaging time(days) EF=Exposure frequency(days/yr) ED=Exposure duration(yr) <br /> Site Name: Heritage Square Date Completed:20-Sep-02 <br /> Site Location:640 N.San Joaquin Street,Stockton,CA Job ID: 3572E <br /> Completed By: Lee H.Morse <br />