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Gillies Trucking • -3- • May 18, 2009 <br /> Claim No. 1129 <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WQOS <br /> Maximum Latest Shallow Industrial2 Maximum Latest (ug/L) <br /> Soil Dermal (Mar 08) <br /> Residential <br /> m /k (mg/kg) <br /> TPH-g NA NA 83 450 1,800 290 5 <br /> TPH-d NA NA 83 450 190,000 160,000 56 <br /> Benzene NA NA 0.044 0.27 16 2.7 0.15 <br /> Toluene NA NA 1 2.9 210 15 1 15 42 <br /> Eth (benzene NA NA 2.3 5.0 10 0.64 29 <br /> Xylenes NA NA 2.3 100 11 <0.5 17 <br /> MTBE NA NA 0.023 65 100 0.93 5 <br /> TBA NA NA 0.075 320,000 5.5 6.3 12 <br /> 1,2-DCA NA NA 0.0045 0.48 ND <0.5 0.4 <br /> Lead NA NA 200 750 NA 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 /> 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: several thousand cubic yards of contaminated soil were <br /> excavated in Jul 90. <br /> B. In-Situ Soil/ Groundwater Remediation: soil vapor extraction pilot test is <br /> pending <br /> California Environmental Protection Agency <br /> D.d Recyc/ed Paper <br />