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Canepa's Car Wash -2- March 24 , 2009 <br /> Claim No . 8449 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> (feet b s) ( Nov 08) <br /> MW- 1 Nov 93 50-70 35 . 66 <br /> MW-2 Nov 93 50-70 35 . 29 <br /> MW-3 Nov 93 50-70 36 . 10 <br /> MW4 Nov 93 50-70 36 . 30 <br /> MW-5 Mar 94 50-70 35 .40 <br /> MW-6 Mar 94 45-65 34. 60 <br /> MW-7 Mar 94 45-65 35 . 70 <br /> MW-9 Oct 01 25-45 35 . 57 <br /> MW- 10 Oct 01 2545 34 . 61 <br /> Mb'V- 11 Oct 01 25-45 35 . 01 <br /> MW- 12D Oct 01 100- 110 34 . 94 <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 WQOs <br /> Maximum Latest Shallow Industrial2 Maximum Latest (ug/L) <br /> Soil Dermal (Nov 08) <br /> Residential(mg/kg) (mg/kg) <br /> TPH-g NA NA 83 450 500 , 000 400, 000 5 <br /> TPH-d NA NA 83 450 NA NA 56 <br /> Benzene NA NA 0. 044 0.27 96, 000 53 ,000 0. 15 <br /> Toluene NA NA 2. 9 210 91800 53400 42 <br /> Eth (benzene I NA NA 2. 3 1 5. 0 24, 000 31600 1 29 <br /> Xylenes NA NA 2. 3 100 24, 700 132200 17 <br /> MTBE NA NA 0.023 65 740, 000 340 , 000 5 <br /> TBA NA NA 0.075 320, 000 NA < 10 12 <br /> 112-DCA _ NA NA 0. 0045 0.48 NA 87 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 /> CaBforuia ERvironmauta/Protection Agency <br /> A <br /> D.a Recycled Paper <br />