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Canepa's Car Wash -2- February 8, 2011 <br /> Claim No. 1695 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Depth to Water <br /> (feet bgs) (feet bgs) <br /> _ (Nov 2010) <br /> MW-1 Sep 94 45-65 24.78 <br /> MW-2 Sep 94 45-65 25.65 <br /> MW-3 Sep 94 45-65 26.04 <br /> MW-4 Sep 94 40-60 24.44 <br /> MW-5 Sep 94 40-60 25.77 <br /> MW-6 Sep 94 40-60 25.15 <br /> MW-7 Sep 94 40-60 25.76 <br /> MW-8 Jul 09 25-45 25.76 <br /> MW-9 Jul 09 75-85 26.23 <br /> MW-10 Jul 09 100-110 26.53 <br /> MW-11 Jul 09 75-85 26.45 <br /> MW-12 Jul 09 100-110 26.55 <br /> MW-13 Aug09 25-45 25.51 <br /> MW-14 Aug09 78-88 26.10 <br /> MW-15 Sep 09 25-45 26.66 <br /> MW-16 Sep 09 75-85 27.07 <br /> MW-17 Sep 09 100-110 27.22 <br /> • LAND USE DESIGNATION: 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 Water (ug/L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> Nov 2010 <br /> TPH-g NA NA 190,000 85,000 5 <br /> Benzene NA NA 14,000 9,800 0.15 <br /> Toluene NA NA 16,000 11,000 42 <br /> Eth (benzene NA NA 3,600 3,600 29 <br /> Xylenes NA NA 12,100 12,100 17 <br /> MTBE NA NA 32,000 <1 5 <br /> TBA NA NA NA <10 12 <br /> 1,2-DCA NA NA 310 120 0.4 <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> mg/kg: milligrams per kilogram, parts per million <br /> ug/L: micrograms per liter, parts per billion <br /> WQOs: Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> California Environmental Protection Agency <br /> C,Recycled Paper <br />