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0 <br /> Tier 2 Worksheet 81 <br /> Site Name:Forrneer Regal 603 Site Location:6425 Pacific Aenue Stockton CA Completed By:Roy Butler Date Com leted:7/10/1998 9 OF 9 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> GROUNDWATER EXPOSURE PATHWAYS ■ CHECKED IF PATHWAY IS ACTIVE <br /> GROUNDWATER:INGESTION Exposure Cancmlration MAX.PATHWAY INTAKE ImgrkyEayt <br /> I) rce Mgojum2)NAE Value(dim) 3)Exposure Medium 4)Exposure Multiplier 51 Averag Daily lookc.Ral M+xfmum 1.1".&-0-psid-y. <br /> Receptor Groundwater:POE Cana.(teeti)(1y(2) (IRxEFsEDyfBW.AT) (Uk¢dayl (w4%e-y)(3)x NV -ff faachhrp A y,.Wtd'af-r-d..j <br /> Groundwater Conc. <br /> Constituents of Concern m Otr5fk Cormnerdal Ort-Site Residential On-Site Commerdal Or•Sfle Readea6al On-Site Commerdal Oft-Site Retldenliat On-Site Cornmeraat Off-Site Residmi.1 On-SAe Carrrneraat De-Sde ttesidential <br /> Benzene 4.4E-2 1.0E+0 1.0E+10 4.4E-2 4.4E-12 3.5E-3 1.2E-2 1.5E4 5.2E-14 1.5E-4 5.2E-14 <br /> Eth lbenzene 3.1E-1 1.0E+0 1,0E+10 3.1E-1 3.1 E-1 I 9.BE-3 2.7E-2 3.0E-3 8.5E-13 I 3.0E-3 8.5E-13 <br /> Hexane n- 1.0E+1 1.0E+0 1.0E+10 1.0E+1 1.0E-9 9.8E-3 2.7E-2 1.0E-1 2.9E-11 1,0E-1 2.9E-11 <br /> Methyl t-But l Ether 8.1E-2 1.0E+0 1.0E+10 8.1E-2 8.1E-12 9.8E-3 2.7E-2 7.9E4 2.2E-13 1.1E-3 3.2E-13 <br /> Toluene 4.9E-i 1.0E+0 1.0E+10 4.9E-1 4.9E-11 9.8E-3 2.7E-2 4.8E-3 1.4E-12 4.8E-3 1.4E-12 <br /> X len. mixed isomers 2.2E+0 1.0E+0 1.0E+10 2.2E+0 2.2E-10 9.8E-3 2.7E-2 1 2.1E-2 5.9E-12 2.1E-2 5.9E-12 <br /> NOTE: ABS=Dermal absorption factor(dim) BW=Body weight(kg) EF=Exposure frequencey(dayslyr) POE=Point of exposure <br /> AF-Adherence factor(mg1cm12) Cf=Unds conversion factor ET=Exposure time(hrsfdsyl SA=Skin exposure area(cm-21day) <br /> AT-Averaging time(days) ED=Exposure duration(yrs) IR=intake rate(L1day) <br /> Software:GS]RBCA Spreadsheet Serial:GA43-CSX444 <br /> ®Groundwater Services,Inc,(GSI),1995-1997.All Rights Reserved. Version: 1.0.1 <br /> r <br />