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Table 5 - Soil Gas Analytical Results - Hydrocarbons <br /> Blue Star Property, 4040 East Main Street <br /> Stockton, San Joaquin County, CA <br /> AirEthyl- Xylenes Naph- <br /> Sample TPH-G Benzene Toluene benzene (total) MTBE thalene EDC PCE TCE VC <br /> Sample Date <br /> ID <br /> p9/m' <br /> SV-1 1 3/14/2013 900 <8.0 13 <11 <11 <9.0 <13 <10 <17 <13 <6.4 <br /> SV-2 1 3/14/2013 1 800 <8.0 17 <11 <11 <9.0 <13 110 <17 <13 <6.4 <br /> SFBRWQCB 2008 Environmental Screening Levels Using DTSC Attenuation Factors(volatile chemicals only ) <br /> Residential 1 5,100 42 31,000 490 10,000 4,700 3647 210 = 76 <br /> Commercial/Industrial 14,000 8,800 88,000 290,000 29,000 16,000 120 160 120,000 2,000 52 <br /> Cal EPA 2005 California Human Health Screening Levels <br /> Residential NE 36.2 135,000 NE 315,000 4,000 31.9 49.6 180 528 13.3 <br /> Commercial/Industrial NE 122 378,000 NE 879,000 13,400 106 167 603 1,770 44.8 <br /> Abbreviations: <br /> ID = Identification TCE =Trichloroethene <br /> TPH-G =total petroleum hydrocarbons as gasoline VC =Vinyl chloride <br /> MTBE = Methyl tertiary-Butyl Ether pg/m3 = micrograms per cubic meter <br /> EDC = 1,2-Dichloroethane <X = Less than the reported laboratory detection limit <br /> PCE =Tetrachloroethene <br /> Table 5 <br /> Page 1 of 1 <br />