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Rogor Huckins Jr. • 3 May 5, 2010 <br /> Claim No. 12186 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k Water u /L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> Oct 09 <br /> TPH- NA NA 290,000 40,000 5 <br /> TPH-d NA NA 500 NA 56 <br /> Benzene NA NA 64,000 8,400 0.15 <br /> Toluene NA NA 90,000 2,700 42 <br /> Eth (benzene NA NA 16,000 680 29 <br /> X lenes NA NA 37,000 3,440 17 <br /> MTBE NA NA 100 <1 5 <br /> TBA NA NA 370 <10 12 <br /> 1,2-DCA NA NA 4,600 140 0.4 <br /> Lead NA NA NA I NA 15 <br /> PCE NA NA NA NA 0.06 <br /> TCE NA I NA INA NA 0.8 <br /> NA Not Analyzed, Not Applicable,or Data Not Available <br /> Woo Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. Irl Soil/ Groundwater Remediation: <br /> • METHOD: soil vapor extraction and air sparging <br /> • DURATION: Nov 09 through present <br /> • INITIAL TPH-G INFLUENT CONCENTRATION: 2,100 ug/I (Nov 09) <br /> • TPH-G INFLUENT CONCENTRATION: 6,000 ug/I (Dec 09) <br /> • MASS OF TPH-G REMOVED: 2,921 lbs (Dec 09) <br /> California Environmental Protection Agency <br /> _ Qd Recycled Paper <br />