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t t C t t [ C t t t t t t t t t tRBCA SITE ASSESSMENT <br /> l <br /> Tier 1 Worksheet 8.1 <br /> Site Name:Stockton Fire Station 03 Site Location:1116 First Street Stockton CA Completed By:JEANNE HOMSEY Date Completed:3/14/2000 9 OF 9 <br /> TIER 1 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> ?i <br /> GROUNDWATER:WGESTION Exp.-C-ntrOWn tA11X.PATHWAY WTAKE(=rsrkg-d•y) <br /> 1)Source Medium 2)NAF Value(diml 3)Exposure Medium 4)Exposure Multiplier 5)Average Daily Intake Rate (M xj s A.W. (.Uhv pd-y. <br /> "a MKfkv a wm"hv.w loaf...) <br /> Receptor Grondrtlr POEC�.(ffVQ(ly(2) (IRxENEDy(BMAT) (M ij-"y) (mg/kg-d.y)(3)x(4) <br /> Groundwater Conc. <br /> Constituents of Concern m Or St.Commer W Or SA.C-m W Or sk.cm'.-W OwSke Comr fd.l Or Sk.Ca..-W <br /> Benzene 4.1 E-2 1.0E+0 4.1E-2 3.5E-3 1.4E-4 1-4E4 <br /> Eth (benzene 3.2E-3 1.0E+0 3.2E-3 9.8E-3 3.2E-5 3.2E-5 <br /> Metht-Butyl Ether 5.2E-2 1.0E+0 5.2E-2 9.8E-3 5.1E-4 5.1E-4 <br /> Toluene 1.5E-2 1.0E+0 1.5E-2 9.8E-3 1.4E-4 1.4E-4 <br /> Xytene mixed isomers 6.4E-2 1.0E+0 6.4E-2 I 9.8E-3 6.3E-4 6.3E-4 <br /> NOTE: ABS=Dermal ebsorptlon tactor(dim) BW=Body weft(kg) <br /> EF=Exposure fre4+encey(daYW) POE=Point of afire <br /> AF=A.fierarxe factor(mgkrnA2) CF=Lkrts conversion faclor ET-Exposure tme(hts/day) SA-SMn exposure area(om"2/dey) <br /> AT=Averaging rime(days) ED=Exposure duration(yrs) IR=Intake rate((lday) <br /> Software. GSI RBCA Spreadsheet Serial:G 313-VKX 542 <br /> O Groundwater Services,Inc.(GSI),1995-1997.All Rights Reserved. Version: 1.0.1 <br />