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r- <br /> Moore Petroleum -3- March 14, 2008 <br /> Claim No. 889 <br /> IV. ,MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS_ . i <br /> Contaminant Soil m /k PRGs _Water (ug/L WQOs <br /> Maximum Latest, Residential Industrial Maximum Latest (ug/L) <br /> (mg/kg) (mg/kg) Oct 07 <br /> TPH-g NA NA NA NA 8,400 2,000 5 <br /> TPH-d NA NA NA NA 29,000 600 49 <br /> Benzene NA NA 0.64 1.4 720 <0.5 0.15 <br /> Toluene NA NA 520 520 13 0.93 42 <br /> Eth (benzene NA, NA 400 400 28 3.7 29 <br /> Xylenes NA NA 270 420 29 0.52 17 <br /> MTBE NA NA 32 70 1,500 <1 5 <br /> TBA NA NA NA NA ND <12 12 <br /> 1,2-DCA NA NA NA NA <1 <1 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 LISEPA 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 -V. FREE PRODUCT: none identified <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: Nov 95 through Apr 97, Jun 02 through present <br /> • MASS REMOVED: 5,587 pounds of TPH-G <br /> C. Groundwater.Remediation: p <br /> METHOD 1: air sparging <br /> o <br /> • DURATION: May 95 through Mar 97 <br /> • METHOD 2: ozone sparging <br /> DURATION: Feb 05 through 4th Quarter-07 <br /> c , <br /> California Environmenta/Protection Agency <br /> P.a <br /> Recycled Paper , <br />