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Eq Won Enterprises <br /> • _3- March 21, 2008 <br /> Claim No. 6155 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k PRGs Water u /L Woos <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> m /k m /k Nov 07 <br /> TPH-g NA NA NA NA FP 13,000 5 <br /> TPH-d NA NA NA NA FP 1,300 49 <br /> Benzene NA NA 0.64 1.4 FP 4,400 0.15 <br /> Toluene NA NA 520 520 FP 48 42 <br /> Eth (benzene NA NA 400 400 FP 7.6 29 <br /> X lenes NA NA 270 420 FP 112 17 <br /> MTBE NA NA 32 70 FP 100 5 <br /> TBA NA NA NA NA FP 270 12 <br /> 1,2-DCA NA NA NA NA FP ND 0.5 <br /> Lead NA NA 400 800 FP NA 15 <br /> PCE NA NA 17 130 NA NA 0.06 <br /> TCE NA I 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 /> woo water Quality Objectives <br /> FP Free Product <br /> V. FREE PRODUCT: MW-1. Approximately 45 gallons of free product was removed <br /> from MW-1 from May 89 through Dec 89. <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: <br /> • METHOD: soil vapor extraction <br /> • DURATION: Aug 95 through Mar 96 <br /> • MASS REMOVED: 6250 pounds of TPH-G <br /> C. Groundwater Remediation: none identified <br /> California Eavironmenta/Protection Agency <br /> ZA <br /> fi'Xecyded Paper <br />