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* ! • <br /> Tier 2 Worksheet 8.1 <br /> Site Name:Formeer Regal 603 Site Location:6425 Pacific Aenue,Stockton,CA Completed By:Roy Butler Date Completed:711011998 1 OF 9 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> OUTDOOR AIR EXPOSURE PATHWAYS ❑ JCHECKED IF PATHWAY IS ACTIVE) <br /> SURFACE SOILS:VAPOR AND ExposureC—..trati— <br /> DUST INHALATION 1)Source Medium 2)NAF Value(m"31kg) 3)Exposure Medium 4)Exposure Mu UIMI er 5)Average Owly Intake Rate <br /> Receptor Cxdd—Ax:POE Cox.(mgW3)(r)r12) (IR.EFxEDpr(8V*AT) (.'3A-day) (-pA4 d.y)(3)x(4) <br /> Surface Soil Conc. <br /> Constituents of Contem m <br /> Benzene 5.0E-3 <br /> Ett1 (benzene 5.0E-3 <br /> Hexane n- 2.0E-1 <br /> Methyl t-But I Ether 5.0E-2 <br /> Toluene S,QE-3 <br /> ,Xylene nixed isomers 5.0E-3 <br /> NOTE: ABS=Dermal absorption factor(dim) BW=Body weight(kg) EF=Exposure f(equencey(dayslyr) POE=Point of exposure <br /> AF=Adherance factor(mofcW2) CF=Units Conversion factor ET=Exposure lime(hrslday) SA=Skin exposure area(rm"21day) <br /> AT=Averaging time(days) ED=Exposure duration(yrs) IR=Inhalation rale(m"31day) <br /> Software:GSI RSCA Spreadsheet Serial.G443-CSX-444 <br /> O Groundwater Services,Inc,(GSI),1995-1997.All Rights Reserved. Version: 1,0.1 <br /> ' t <br />