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Canepa's Car Wash -2- April 21 ; 2008 <br /> Claim No . 8449 <br /> B . Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet bgs Oct 07 <br /> MW- 1 Nov 93 50-70 46 . 81 <br /> MW-2 Nov 93 50-70 37 . 76 <br /> MW-3 Nov 93 50-70 38 .42 <br /> MW-4 Nov 93 50-70 38 .64 <br /> MW-5 Mar 94 50-70 36 .64 <br /> MW-6 Mar 94 45-65 36 . 81 <br /> MW4 Mar 94 45-65 37 . 98 <br /> MW-9 Oct 01 25-45 37 . 80 <br /> MW-10 Oct 01 25-45 36 . 79 <br /> MW- 11 Oct 01 25-45 37 . 34 <br /> MW- 12D Oct 01 100-110 37 . 07 <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 PRGs Water (ug/L WQOs <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> (mg/kg) (mg/kg) Oct 07 <br /> TPH- NA NA NA NA 500, 000 941500 5 <br /> TPH-d NA NA NA NA NA NA 49 <br /> Benzene NA NA 0.64 1 .4 96, 000 36, 100 0. 15 <br /> Toluene NA NA 520 520 9, 800 162400 42 <br /> Eth lbenzene NA NA 400 400 24, 000 21370 29 <br /> Xylenes NA NA 270 420 24,700 4, 940 1 17 <br /> MTBE NA NA 32 70 740, 000 1662000 5 <br /> TBA NA NA NA NA NA <51000 12 <br /> 112-DCA NA NA NA NA NA 24.3 0.5 <br /> Lead NA NA 400 800 NA NA 15 <br /> PCE NA NA 17 130 NA NA 0. 06 <br /> TCE NA NA 0. 11 110 NA NA 0. 8 <br /> PRGs USEPA Region 9 Preliminary Remediation Goals <br /> MCL Maximum Contaminant Levels - <br /> AL Action Level <br /> NA Not Analyzed, Not Applicable, or Data Not Available <br /> Woo Water Quality Objectives - <br /> V. FREE PRODUCT: none identified <br /> VI . SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation : unknown volume in Apr 00 <br /> CaGforuia EnviroamentaiProtection Agency <br /> ZOOS Recyded Paper <br />