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DIK Enterprises Inc. -4- March 24, 2009 <br /> Claim No. 12992 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (u/L WQOs <br /> Maximum Latest Shallow Industrial <br /> Maximum Latest (ug/L) <br /> Soil Dermal (Dec 08) <br /> Residential m /k (mg/kg) <br /> TPH-g NA NA 83 450 120,000 25,000 5 <br /> TPH-d NA NA 83 450 18,000 <50 56 <br /> Benzene NA NA 0.044 0.27 8,800 2,400 0.15 <br /> Toluene NA NA 2.9 1 210 1,100 75 42 <br /> Eth (benzene NA NA 2.3 5.0 1,500 190 29 <br /> Xylenes NA NA 2.3 100 5,200 441 17 <br /> MTBE NA NA 0.023 65 150 <1 5 <br /> TBA NA NA 0.075 320,000 190 <10 12 <br /> 1,2-DCA NA NA 0.0045 0.48 970 48 0.4 <br /> Lead NANA 200 750 NA NA 15 <br /> PCE NA NA 0.37 0.95 NA NA 0.06 <br /> TC E NA NA 0.46 1 4.1 NA NA 0.8 <br /> 1 Environmental Screening Levels(ESLs)Shallow Soil<3m,Groundwater is source of Drinking Water. <br /> 2 ESLs,Shallow Soil Screening Levels,Groundwater not source of Drinking Water, Commercial Use, Direct Exposure, <br /> Worker <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. In-Situ Soil Remediation: <br /> METHOD: soil vapor extraction is pending <br /> C. Groundwater Remediation: <br /> METHOD: air sparging is pending <br /> Catlfornia Environmental Protection Agency <br /> 0 Recycled Paper <br />