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II Mohammed Mater -2- May 4 , 2009 <br /> Claim No . 14840 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s) (Oct 08) <br /> MW- 1 Mar 04 35-55 26 . 08 <br /> MW-2 Mar 04 25-45 26 . 06 <br /> MW-3 Mar 04 35-55 26 . 35 <br /> MW-4 Mar 04 30-50 26 . 27 <br /> • LAND USE DESIGNATION : residential and commercial <br /> ESTIMATED WATER QUALITY OBJECTIVES (WQO ' S) FOR SITE : Per the <br /> Water Quality Control Plan ( Basin Plan ) for the Sacramento River Basin and the <br /> San Joaquin River Basin ( Fourth Edition ) . <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WOOS <br /> Maximum Latest Shallow Industrial2 Maximum Latest (ug/L) <br /> Soil ' (Oct 08) <br /> Residential Dermal <br /> m /k ( mg/kg) <br /> TPH -g NA NA 83 450 821000 302000 5 <br /> TPH -d NA NA 83 450 NA NA 56 <br /> Benzene NA NA 0. 044 0. 27 183000 41500 0 . 15 <br /> Toluene NA NA 2. 9 210 41500 270 42 <br /> Eth ( benzene NA NA 2. 3 5 . 0 11100 130 29 <br /> Xylenes NA NA 2. 3 100 51200 450 17 <br /> MTBE NA NA 0 . 023 65 20, 000 71200 5 <br /> TBA NA NA 0. 075 1 320 , 000 < 10 < 10 12 <br /> 112-DCA NA NA 0 . 0045 0.48 190 52 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 : approximately 175 cubic yards of contaminated soil were <br /> excavated in Apr 00 <br /> B . Irl Soil Remediation : none identified <br /> METHOD : soil vapor extraction pilot test (Aug 05) , considered a viable <br /> remedial technology <br /> C . Groundwater Remediation : <br /> California Environmental Protection Agency <br /> Vpi Recycled Paper <br />