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M Foppiano Investments -3- May 7 , 2009 <br /> Claim No . 14821 <br /> IV, MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WQCS <br /> Maximum Latest Shallow Industrial2 Maximum Latest (ug/L) <br /> soil Dermal (Mar 09) <br /> Residential (mg/kg) <br /> (mg/kg) <br /> TPH-g NA NA 83 450 180, 000 86, 000 5 <br /> TPHA NA NA 83 450 NA NA 49 <br /> Benzene NA NA 1 0. 044 0.27 10, 100 63600 0. 15 <br /> Toluene NA NA 2 . 9 210 40,600 1 71800 42 <br /> Eth (benzene NA NA 2.3 5. 0 302000 51500 29 <br /> Xylenes NA NA 2 .3 100 353000 33 , 000 17 <br /> MTBE NA NA 0. 023 65 122 45 5 <br /> TBA NA NA 0. 075 320, 000 130 400 12 <br /> 1 ,2-DCA NA NA 0. 0045 0.48 11170 510 0.5 <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 : unknown volume <br /> B . In-Situ Soil/ Groundwater Remediation : <br /> • METHOD 1 : soil vapor extraction pilot test conducted <br /> • METHOD 2 : ozone pilot test pending <br /> California Eavironmenta/Protection Agency <br /> :d Recycled Paper <br />