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Ill. Soil Remediation Information [7/91 - 2/96 <br /> Soil remediation method(s) Sail. Vapor Extraction w/ Catalytic oxidation and Biofilteration. <br /> Volume treated and/or removed 153 lbs . benzene and 50862 lbs . TPIT-G <br /> Contaminated soil disposal site <br /> If contamination is remaining, describe concentration range and volume (cubic yards or <br /> meters) <br /> Table III-Maximum documented contaminant concentrations in soil before and after cleanup <br /> I <br /> Contaminant Method Before After Depth Contaminant Method Before After Depth <br /> used (mg/kg) (mg/kg) (ft) used (mg/kg) (mg/kg) (ft) <br /> TPH (Gas) 8015 17 3 000 40 Benzene W15 220 TaQ <br /> TPH (Diesel) <10 <10 Toluene 8015 1,100 40 <br /> Other fuel M NA Ethylbenzene a)15 490 40 <br /> Heavy metal$ Xylene am 3,000 40 <br /> Other Other <br /> IV. Groundwater Remedlation Information <br /> Groundwater remediation method(s) Extraction through GAC Vessels [10/92 - 4/931 <br /> Volume treated and/or removed 0.0003 lbs. Benzene 0.01 1b TPH-G <br /> If contamination is remaining, describe concentration range and volume (gallons or liters) <br /> Table IV-Maximum documented contaminant concentrations in groundwater before and after cleanup <br /> Contaminant Method Before After Depth Contaminant Method Before After Depth <br /> used (mgli) (mg/1) (ft) used (moll) (moll) (ft) <br /> TPH(Gas) 5030/8n15 343.9 <0.050 5+' Benzene /x{)15 6.2 <0.0005 60' <br /> TPH(Dieseq NA M RA Toluene ) ,Yam 5.3 <0.0M5 50' <br /> Other fuel Ethylbenzene 5-W/801-5 5.5 <0.(M5 W <br /> Heavy metals r� lA M Xylene 50/801 5 13 <0.0005 60' <br /> Other Other <br /> V. Closure <br /> Does Regional Board concur with closure? Yes No <br /> Rationale for closure <br /> Location of reports on file (Agency/Room) <br /> County Staff person Phone <br /> i <br /> Regional Board office Staff person Phone <br /> SBR Ctrel b wp 29 Jlaw 1884- <br /> s <br />