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Beneto Inc, -3- June 19 , 2008 <br /> Claim No. 1036 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k PRGs Water (ug/L woos <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> (mg/kg) (mg/kg) Jul 07 <br /> TPH-g NA NA NA NA FP 52 ,000 5 <br /> TPH-d NA NA NA NA FP NA 49 <br /> Benzene NA NA 0.64 1 .4 FP 132000 0. 15 <br /> Toluene NA NA 520 520 FP 31900 42 <br /> Eth (benzene NA NA 400 400 FP 550 29 <br /> Xylenes NA NA 270 420 FP 31400 17 <br /> MTBE NA NA 32 70 FP 360 5 <br /> TBA NA NA NA NA FP <200 12 <br /> 112-DCA NA NA NA NA FP 4.7 0.5 <br /> Lead NA NA 400 800 NA NA 15 <br /> PCE NA NA 17 130 NA NA 0. 06 <br /> TCE NA NA 0. 11 110 NA NA 0.8 <br /> PRGs USEPA Region 9 Preliminary Remediation Goals - <br /> MCL Maximum Contaminant Levels <br /> AL Action Level <br /> NA Not Analyzed, Not Applicable, or Data Not Available <br /> WQO Water Quality Objectives <br /> FP Free product <br /> V. FREE PRODUCT : none identified <br /> VI . SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation : unknown volume <br /> Be In-Situ Soil Remediation : <br /> • METHOD: soil vapor extraction <br /> DURATION : Jul 87 through Jul 03 <br /> C . Groundwater Remediation : none conducted , have been directed by Regional <br /> Board to assess groundwater remedial technologies <br /> California Environmenta/ Protection Agency <br /> P.d Recycled Paper <br />