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SM M Mir <br /> RBCA SITE ASSESSMENT <br /> Tier 2 Worksheet 8 2 <br /> Site Name Three Palms Grocery Completed By JEANNE HOMSEY <br /> Site Location 6732 East Highway 88 Stockton CA Date Com feted 9/5x2001 1 OF i <br /> Target Risk(Ctass A tt B) 1 OE-6 ❑ MCL exposure limit? Cakulatlan Option f <br /> SUBSURFACE SOIL SSTL VALUES Target Risk(Class C) 10E5 ❑ PEL exposure limit? <br /> > 15 FT BGS Target Hazard Quotient t oE+o <br /> 33TL Results For Complete Exposure pathways re if Cam fete <br /> Representative <br /> Concentration Sail Volatilization to Soil Volatilization to Applicable SSTL <br /> CONSTITUENTS OF CONCERN X Soil Leaching to Groundwater X Indoor Air X Outdoor Air SSTL EcceWed 7 Required CRF <br /> Residential Commercial Regulatory(MCL) Residential CommercW Resktsntlal Commercial <br /> CAS No Name (mgft) (on-site) (an sds) (on-site) (onsw) (On-sue) (on-sh) (on-site) (mgtkg) `■"if yes Only A yes"left <br /> 7143-2 Senzene 2 5E-3 91 E3 NA NA NA 5 OE-3 NA 41 E+0 5 OE-3 [3 <1 <br /> 1t70-41-4 Eth benzene 4 4E-2 8 6E+1 NA NA NA 6 0E+1 NA >Res 6 0E+1 ❑ <1 <br /> 1634-04-4 Meth t-Butyl Ether 5 OE-2 7 SE-1 NA NA NA 4 2E+2 NA >Res 7 8E-1 ❑ <1 <br /> 108-88-3 Toluene 5 7E-2 2 3E+2 NA NA NA 3 6E+1 NA >Res 3 6E+1 ❑ <1 <br /> 1330-20-7 X ene mixed isomers 1 2E-1 >Res NA NA NA >Res NA >Res >Res ❑ <1 <br /> >Res indicates risk based target concentration greater than oonstduent residual saturation value <br /> Software GSI RBCA Spreadsheet Sena] G 313-VKX-542 <br /> O Groundwater Services Inc (GSI) 1995-1997 All Rights Reserved Version 10 1 <br /> I <br /> I <br />