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i <br /> RBCA SITE ASSESSMENT Tier 2 Worksheet 9 <br /> Site Name Formeer Regal 603 Completed By Ray Fauber <br /> Site Location 6425 Pacdlc Aenue Stockton CA Dile Completed 772417000 j OF t <br /> I vqr I Risk(Ch55 A F R) in[ 6 J MCI exposure Ilrn117 C II(O)lwn Ophon ' <br /> GROUNDWATER SSTL VALUES fIrgrt Risk SCI iss C,) 1 OL 5 L7 PEL exposuic Ilmlt7 [nn,ndw He,OAI Option f Ivr At-(,plc,Super <br /> Tirgrt Ri,aid Ouotient 1 Or+0 IOnr,"lir"chongi verl (lisp"rsion) <br /> SSTL Results For Comptrty Exposure Pithwiys( x d Cnmpirlr) <br /> Representative 5S 1 L <br /> Concentration Groundwater Volzldkc� <br /> izalion Groundwater Volatilization Apprhlr Lxcerded <br /> CONSTITUENTS OF CONCERN X Groundwater Ingestion X to Indoor Air X to Outdoor Air SSTL Required CRI <br /> Residential Comrnerual Regulalory(MCLI Residential Commercial Residvniiat Commercnl <br /> CAS No Name (rng1Q 30001eel (on site) Ion site) (on site) (on site) Inn site) (on site) (mgA ■ if yes Only if yes Eall <br /> 71-43 2 Benzene 5 OE 3 2 3E+0 9 9E 3 NA NA 49E 1 NA 1 2E+2 99E 3 ❑ <1 <br /> 10041 4 Eth (benzene 2 2E 1 1 5E+2 1 0C+1 NA NA >Sol NA >Sol 1 0E+1 ❑ <1 <br /> 1634 04 4 Meth 11-But I Ether 2 9E 2 1 5E+1 5 1E 1 NA NA 5 9E+3 NA >Sol 5 1E S ❑ <1 <br /> 108 88 3 Toluene 5 8E-2 1 3E+2 2 0E+1 NA NA >Sol NA I >Sol 2 0E+1 ❑ <1 <br /> 1330 20 7 X lane mixed Isomers 4 9E 1 >Sol >Sol NA NA >Sol NA I >Sol >Sol ❑ <1 <br /> -Sol indictees risk based largel eoncentrallon greater than constituent solubility <br /> Soflwwc GSI R8CA Spreadsheet Seel sl G 443 CSX 441 <br /> 0 Groundw-ilr r ,croices Inc (GSI} 1995 1997 All Rlghls Reserved Version 1 0 1 <br /> I <br />