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M = M MW M IImiiIi <br /> RBCA SITE ASSESSMENT L <br /> Tier 2 Worksheet 9 2 <br /> Site Name Ttme Oji Company,Property 04 049 Completed By SECOR <br /> Site Location 14000 E HighAuy 88 Locketord CA Date Completed 7/36/1998 1 OF 1 <br /> Target Risk(Class A 6 B) 1 OE 6 o MCL exposure limits Calculation Option 2 <br /> SUBSURFACE SOIL SSTL VALUES Target Risk(Class C) 10E5 o PEL exposure limit? <br /> > 5 FT BGS) Target Hazard Ouotlent 1 OE+O <br /> SSTL Results For Complete Exposure pathways("X'R Complete) <br /> Representative <br /> Concentration Soil Volatilizatlon to Soil Volatilization to Applicable SSTL <br /> CONSTITUENTS OF CONCERN Snit Leaching to Groundwater X Indoor Air X Outdoor Air SSTL Exceeded 7 Required CRF <br /> Residential Commercial Regulatory(MCL) Residential Commercial Resklentai Commercial <br /> CAS No Name (ml (on site) (on•slte) (on site) (onsite) (on she) 100 feet (on sne) (mgtkg) V'If yes Only d yes lett <br /> 71-43-2 Benzene-CA 2 5E+1 NA NA NA NA 7 4E3 1 OE+O 1 5E+0 7 4E3 V 3 4E+03 <br /> 100-41-4 Etfi ibenzene 1 1E+2 NA NA NA NA 1 4E+2 >Res >Res 1 4E+2 0 <1 <br /> 108-883 Toluene 2 8E+2 NA NA NA NA 8 3E+1 >Res >Res a 3E+1 V 3OE+00 <br /> 1330-20-7 Xylene(mixed Isomers) 73E+2 I NA NA NA NA I >Res >Res I >Res >Res 0 <1 <br /> >Res indloates risk based target concentration greater than constituent residual saturation value <br /> Software GSI RSCA Spreadsheet Serial G 147 MVX 152 <br /> C9 Groundwater Services Inc (GSI),19951997 All Rights Reserved Version 10 1 <br /> I <br />