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r ,r rr rr rr rr rr rr � rr ■r �r rr r� ri ■r� r� <br /> RBCA SITE ASSESSMENT <br /> Tl.r 2 worksh.et 9 3 <br /> Site Name Three Palms Grocery Completed By JEANNE HOMSEY <br /> Site Location 6732 East Highway 1313 Stockton CA Date Completed 9152001 1 OF 1 <br /> Target Risk(Cissa A d S) t OE-6 ❑ MCL exposure limit? Calculation Opdon 1 <br /> GROUNDWATER SSTL VALUES Target Risk(Class C)1 OE 5 ❑ PEL exposure ILITIV <br /> Target Hazard Quotient 10E+0 <br /> SSTL Results For Comptete Exposure Pathways("x'If Complete) <br /> Represenlative <br /> Concentration Groundwater Volatilization Groundwater Volatilization Appombie SSTL <br /> CONSTITUENTS OF CONCERN X Groundwater Ingestion X to Indoor Air X I to Outdoor Air S57L Exceeded 7 Required CRF <br /> Residential Commercial Regulatory(MCL) Residential Commercial Residential Commercial <br /> GAS No Name (mgA-) (on-aka) (on-site) (on-site) (onsite) (orfalte) (on-aIle) (on-cies) (mg& "a"If yes Only d yes"left <br /> 7143-2 Benzene 6 5E4 8 5E4 NA NA NA 21E-1 NA 1 7E+2 8 5E4 ❑ <1 <br /> 100-414 Ethylbenzene 1 2E-3 3 7E+0 NA NA NA >801 NA >Sol 3 7E+0 ❑ <1 <br /> 1634-044 Meth t-B Ether 2 5E-3 1 BE-1 NA NA NA 7 3E+3 NA >Sol 1 8E-1 ❑ <1 <br /> 108-88-3 1 Totuene 3 2E4 7 3E+0 NA NA NA >Sol NA >Sol 7 3E+0 ❑ <1 <br /> 11330-20-71Xenc mixed isomers 6-3E4 7 3E+1 NA NA NA >Sol NA >Sol 7 3E+1 ❑ �1 <br /> Sol Indicates risk based target concentration greater than constituent solubility <br /> Software GSI RBCA Spreadsheet Senal G 313•VKX 542 <br /> O Groundwater Services Inc (GSI) 1995.1997 All Rights Reserved Version 10 1 <br /> i <br />