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i <br /> Tier 2 Worksheet 9 2 <br /> Site Name Former Beacon Station No 695 Completed By GDN Della <br /> Silo Location Lodl California Date Completed 7/18/1998 OF f <br /> j Target Risk(Class A 8 8) 14E B ❑ MCL exposure limit? Calculation Option 2 <br /> SUBSURFACE SOIL SSTL VALUES Target Risk(Class C) 1 DE 5 ❑ PEi_exposure limit? <br /> > 3 FT BGS Target Hazard Quotient 1 0E'0 <br /> SSTL Results For Complete Exposure Pathways("x"if Complete} <br /> SSIL <br /> Roprosenlalivc <br /> ConcenlraUora Soil Volatilization to Soil Volatilization to Applicable Exceeded <br /> CONSTITUENTS OF CONCERN X Soll Leaching to Groundwater Indoor Ar Outdoor Alr SSTL 7 Requited CRF <br /> Residential Commerual Regulatory(MCL) Residential Commercial Residential Commercial <br /> CAS No Name m !k 254 feel on site ora site) (on site on site on site (on site (naglk ) :FLU es Only If es'left <br /> 71-43-2 Benzene 9 7E-1 2 3E+1 7 8E+1 NA NA NA NA NA 2 3E+1 ❑ <1 <br /> 100-41 4 Eth (benzene 9 4E+0 >Res >Res NA NA NA NA NA >Res ❑ <i <br /> 108 88-3 Toluene 4 4E+0 >Res >Res NA NA NA NA NA >Res ❑ <1 <br /> 1330-20-7[Xylene mixed isomers 7 4E+1 >Res >Res NA NA NA NA NA >Res ❑ <1 <br /> Software GSI RSCA Spreadsheet Serial G 417 PYX 154 <br /> ®Groundwater SBrvICes Inc {GSI) 1995 All Rights Reserved Version v 10 <br />