Laserfiche WebLink
r""' 1`" rI rI r, r_` r)t r--n r" r' r--V' [ rte' r-'t r "P r7 ? <br /> RBCA Tool Kit for Chemical Releases,Version 1.3 <br /> Ill SITE ASSESSMENT <br /> I OF 3 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> INDOOR AIR EXPOSURE PATHWAYS (CHECKED IF PATHWAY IS ACTIVE) <br /> SOILS(10-20 ft);VAPOR <br /> INTRUSION INTO ON-SITE BUILDINGS 1)Source Medium 2)NAF Value(m^wl 3)Exposure Medium 4)Exposure Multiplier 5)Average Inhalation Exposure <br /> Receptor lndoor Ale. POE Conc. (mgW3) (1)1(2) (EFxED)/(ATx365) (unilless) Concentration(mglmA3)(3)x(4) <br /> Constituents of Concern Soil Conc.(mglkg) Residential Residentiai Residential Residential <br /> Benzene 7.0E-3 1.0E+3 6.9E-6 4.1 E-1 2.8E-6 <br /> Ethy{benzene 6.3E-2 4.2E+3 1.5E-5 9.6E-1 1.4E-5 <br /> Toluene 6.6E-2 1.8E+3 3.6E-5 9.6E-1 3.4E-5 <br /> Xylene mixed isomers) 6.6E-1 3.3E+3 2.0E-4 9.6E-1 1.9E-4 <br /> TPH-Aiiph >C16-C21 3.6E+3 3.6E+5 1.0E-2 9.6E-1 9.611l <br /> TPH-Aliph >C21-C34 1.9E+4 2.4E+5 7.8E-2 9.6E-1 7.5E-2 <br /> TPH-Arom >C16-C21 3.6E+3 9.7E+6 2.1 E-3 9.6E-1 2.0E-3 <br /> TPH-Arom>C21-C35 1.9E+4 5.4E+7 3.5E-4 9.6E-9 3.4E-4 <br /> TPH-Aliph>C12-C16 3.6E+3 2.7E+4 1.3E-1 9.6E-1 1.3E-1 <br /> TPH-Aram>C12-C16 3.6E+3 2.2E+5 1.6E-2 9.6E 1 1.6E-2 <br /> NOTE: AT=Averaging time(days) EF=Exposure frequency(dayslyr) ED=Exposure duration(yr) NAF=Natural attenuation factor POE=Point of exposure <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 />