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Stephen L. Valentine -3- 4''''� March 16, 2010 <br /> Claim No. 417 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k Water (ug/L WQOs <br /> Maximum . Latest Maximum Latest (ug/L) <br /> TPH NA NA 260,000 72,200 5 <br /> TPH-d NA NA NA NA 56 <br /> Benzene NA NA 27,000 6,060 0.15 <br /> Toluene NA NA 34,000 44,800 42 <br /> Eth (benzene NA NA 8,250 2,400 29 <br /> Xylenes NA NA 19,000 13,500 17 <br /> MTBE NA NA 340 <100 5 <br /> TBA NA NA 210 <1,000 12 <br /> 1,2-DCA NA NA 78 19.8 0.4 <br /> Lead NA NA NA NA 15 <br /> PCE NA NA NA NA 0.06 <br /> TCE NA NA NA NA 0.8 <br /> NA Not Analyzed,Not Applicable,or Data Not Available <br /> WQO 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. In-Situ Soil/ Groundwater Remediation: <br /> • METHOD: dual phase extraction <br /> • DURATION: Apr 07 through Jun 09 <br /> • MASS REMOVED VAPOR PHASE: 4,250 pounds of TPH-G (Sep 08) <br /> California Enviroamental'Protection Agency <br /> P.a Recyc%d Paper <br />