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V7t r <br /> RBCA SITE ASSESSMENT <br /> Tier 1 Worksheet 8.1 <br /> Site Name:Stockton Fire Station Site Location:1116 First Street Stockton CA Completed By:JEANNE H Date Completed:3/14/2000 6 OF 9 <br /> TIER 1 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> v � � vvvv n.v.v.v.ntvv.vnntvnt ret nvvv-.v.v.vv.♦ ••:•:'�' <br /> SURFACE SOILS OR SEDVAENTS: Exposure ConceWxAlon <br /> DERMAL CONTACT 1)Source Medium 2)Exposure Mukiplier 3)Average Daily Intake Rate <br /> (SAxAFxABSxCFxEFxED)I(BWxAT) (kgAg-day) (mgNg- y)(1)x(2) <br /> Constituents of Concem Surface Soil Conc. m yk On-Site Residential On-Site Commercial On-Site Residential - - - On-Site Commercial <br /> Benzene 0.0E+0 1.0E-5 0.0E+0 <br /> Eth benzene 0.0E+0 2.8E-5 0.0E+0 <br /> Methyl t-Butyl Ether 0.0E+0 2.8E-5 0.0E+0 <br /> Toluene 0.0E+0 2.8E-5 0.0E+0 <br /> Xylene mixed isomers 0.0E+0 2.8E-5 0.0E+0 <br /> NOTE: ABS-Dermal absorption factor(dm) BW=Body weight(kg) EF-Expostre frequencey(daysty POE=Point of e>q>osure <br /> AF-Adherence factor(mgkrM2) CF=Units conversion factor ET-Exposure time(hrs/dey) SA=Skin exposure area(am"2/day) <br /> AT=Averaging time(days) ED=E>q>osure dlrabon(yrs) IR=Intake rate(mg/day) <br /> Software: GSI RBCA Spreadsheet Serial: G-313-VKX542 <br /> O Groundwater Services,Inc.(GSI),1995-1997.All Rights Reserved. Version: 1.0.1 <br />