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%WOI tiMir <br /> Tuleburg Warehouse -3- May 19, 2008 <br /> Claim No. 12586 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /kg) PRGs Water (ug/L WQOS <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> (mg Ikg) m 1k Mar 08 <br /> TPH- NA NA NA NA 230,000 42,000 5 <br /> TPH-d NA NA NA NA NA NA 49 <br /> Benzene NA NA 0.64 1.4 17,000 1,400 0.15 <br /> Toluene NA NA 520 520 34,000 10,000 42 <br /> Eth (benzene NA NA 400 400 3,900 350 29 <br /> Xylenes NA NA 270 420 20,000 7,800 17 <br /> MTBE NA NA 32 70 44,000 1,800 5 <br /> TBA NA NA NA NA ND ND 12 <br /> 1,2-DCA NA NA NA NA ND ND 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 /> PBGs 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 /> 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: Aug 05 through present <br /> • RATE OF HYDROCARBON REMOVAL: 2.25 pounds/day <br /> C. Groundwater Remediation: <br /> • METHOD: groundwater extraction <br /> • DURATION: Nov 03 through present <br /> VOLUME OF GROUNDWATER EXTRACTED: 2,796,671 gallons <br /> California Environmental Protection Agency <br /> C4.R,,yc%d Paper <br />