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` Tier 2 Worksheet B 3 <br /> Site Name Tatde3.4 Completed By Denise Clendening <br /> Site Location 500 feet Date Completed 1/1/1999 1 OF 1 <br /> Target Risk(Class A 6 B)t OE-6 ❑ MCL exposure tlmlt7 Calculation Option 3 <br /> GROUNDWATER SSTL VALUES Target Risk(Clan C) I DE ❑ PELexposure limit? Groun waterDAFOptlan Donenico Fkstorder <br /> Target Hazard Quotient 1 0E+0 (Tufo-directional vert dispersion) <br /> SSTL Results For Com lata Exposure path !f Com lete <br /> Representative <br /> coneontratlon Groundwater Volatilization Groundwater Volatitlzation ApplUblo SSTL <br /> CONSTITUENTS OF CONCERN X Groundwater Ingestion to Indoor Air X to Outdoor Air SM Emseded 7 Required CRF <br /> Residential Commercial Regulatory(MCL) Residential Commercial Residential Commorclal <br /> CAS No Narno m SW het (—Sb) 500 feet on sloe on•sl orFarte a►aRe If yes Only K 'left <br /> 71-43-2 Benzene 8 5E+0 >Sol NA NA NA NA NA 1 9E+11 9E+1 ❑ <1 <br /> 67-56-3 Chloroform 8 0E4 >Sol NA NA NA NA NA 3 0E+1 3 0E+1 ❑ <1 <br /> 107.06-2 Dichloroethane 1,2- 4 6E-1 >Sol NA NA NA NA NA 5 2E+1 5 2E+1 ❑ <1 <br /> 1DD-414 Et benzene 1 1E+0 >Sol NA NA NA NA NA >Sol >Sol ❑ <1 <br /> 1634-0" Meth li-Butyl Ether 0 0E+0 >Sol NA NA NA NA NA 14E+4 1 4E+4 ❑ <1 <br /> 91-20-3 Na alert 20E-1 >So( NA NA NA NA NA NA >Sol ❑ <1 <br /> 100-42-5 Styrene 9 0E-4 >Sol NA NA NA NA NA >Sol >Sol ❑ <1 <br /> 127-18-4 Tetrachloroethene 6 OE4 >Sol NA NA NA NA NA >Sol >Sol ❑ <1 <br /> 108-88-3 Toluene 1 3E+1 >Sol NA NA NA NA NA >So( >Sol ❑ <1 <br /> 1330-20-7 X erre mixed Isomers 51 E+0 >Sol NA NA NA NA NA >Sol >Sol ❑ <1 <br /> >W indicates nsk-based target concentration greater than oorlstKuerd solubility <br /> Sdtware GSI RSCA Spreadsheet Serial G-37FZOX-798 <br /> O Gftnmdwater Services Inc (GSI),1995-1997 All Rights Reserved Version 10 1 <br />