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cl <br /> Gi <br /> MV-1141:11CM MA Tier 2 Worksheet 8.1 <br /> i Site Name:McDowell and Davis Towing,1360 Escalon Site Location:EscalDn,San Joaquin County,CA Gom leted_B :Kobelt Fourt,CE Date Completed:511212002 2 OF g <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> SUBSURFACE SOILS:VAPOR Ecposura Concenhaaon <br /> INHALATION 1)Source Medium 2)NAF Value(mA31kO) 3)Exposure Medium 4)Exposure Multip ier 5)-AWane Qally Intake Rate <br /> Receptor OutdeerAh:POE Cane.(mWW3)(1)1(2) (IPjfF1EDy(BW.A7) (""lift-pay) (mg9cgdey)(3)x(4) <br /> Subsurface Soil Conc. <br /> Constituents.Of Concern On-SM Cemmedal Off-Sire R.MerNN On Site Commerdet Off-Srm Residential ort-she Cemmedd Off-Site Rmidndal Onsite CommpdN Offsite ReaFdeiltlal <br /> Benzene 4.3E-1 1.9E+5 2.2E+5 2.3E-6 1.9E-6 7.0E-2 1.2E-1 1.6E-7 2.2E-7 <br /> Eth lbenzene 2.6E+1 1.9E+5 2.2E+5 1.4E-4 1.1E-4 2.0E-1 2.7E-1 2.7E-5 3.1E-5 <br /> Methyl t-But I Ether. 4.4E+1 1.9E+5 2.2E+5 2.3E-4 1,9E-4 2.0E-1 2.7E-1 4.6E-5 5.3E-5 <br /> Toluene 6.DE+1 1.9E+5 2.2E+5 3.2E-4 2.7E-4 2.0E-1 2.7E-1 6.3E-5 7.3E-5 <br /> Xylene mixed isomers 2.0E+3 1.9E+5 2.2E+5 1.1 E-2 6.9E-3 2.0E-1 2.7E-1 2.1 E-3 2.4E-3 <br /> NOTE: ABS=Dermal absorption factor(dim) BW=Body weight(kg) EF=Exposure frequencey(dayslyr) POE=Point of exposure <br /> i <br /> AF=Adherence factor(mg1bm`2) CF=Units conversion factor ET=Exposure time(hrslday) SA=Skin exposue area(crrtA2lday) <br /> I AT=Averaging time(days) ED=Exposure duration(yrs) IR=Inhalation rate(mA37day) <br /> iI Software:GSI RBCA Spreadsheet Serial: G-491-EFX-072 <br /> I� ®Groundwater Services,Inc.(GSI),19951997.All Rights Reserved. Version: 1.0.1 <br /> I <br /> i J <br />