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fi. Equilon Enterprises -3-. March 5, 2009 <br /> Claim No. 4954 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WQOs <br /> Maximum Latest Shallow Indus trial2 Maximum Latest (ug/L) <br /> Soil Dermal (Aug 08) <br /> Residential (mg/kg) <br /> (mg/kg) <br /> TPH-g NA NA 83 450 FP 55,000 5 <br /> TPH-d NA NA 83 450 FP NA 56 <br /> Benzene NA NA 0.044 0.27 FP 1,400 0.15 <br /> Toluene NA NA 2.9 210 FP 4,200 42 <br /> Eth (benzene NA NA 2.3 5.0 FP 1,500 29 <br /> Xylenes NA NA 2.3 100 FP 6,600 17 <br /> MTBE NA NA 0.023 65 FP 120 5 <br /> TBA NA NA 0.075 320,000 FP <500 12 <br /> 1,2-DCA NA NA 0.0045 0.48 FP <25 0.4 <br /> Lead NA NA 200 750 FP NA 15 <br /> PCE NA NA 0.37 0.95 NA NA 0.06 <br /> TCE NA NA 0.46 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 /> WQO Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: MW-2 contained up to 0.37' of free product (Jul 92), MW-4 <br /> contained up to 0.18' of free product (Jul 92), .MW-land MW-3 contained free product.. <br /> IN Apr 90 a product skimmer was installed in MW-2 and later in MW-7. <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: Sep 92 through Nov 96 . <br /> i . MASS REMOVED: 14,900 pounds of TPH-G <br /> i C. Groundwater Remediation: none.identified <br /> I , <br />� t <br /> t <br /> i <br /> I <br /> i <br /> California Environmental Protection Agency <br /> i � <br /> P.d Recycled Paper <br />