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Canepa's Car Wash -2- March 16, 2010 <br /> Claim No. 1695 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s SeP 09 <br /> MW-1 Sep 94 45-65 25.60 <br /> MW-2 Sep 94 45-65 26.52 <br /> MW-3 Sep 94 45-65 26.95 <br /> MW-4 _Sep 94 40-60 24.18 <br /> MW-5 Sep 94 40-60 26.76 <br /> MW-6 _Sep 94 40-60 26.88 <br /> MW-7 Sep 94 40-60 26.03 <br /> MW-8 Jul 09 25-45 26.65 <br /> MW-9 Jul 09 75-85 27.40 <br /> MW-10 Jul 09 100-110 27.91 <br /> MW-11 Jul 09 75-85 27.65 <br /> MW-12 Jul 09 100-110 27.82 <br /> MW-13 Aug09 25-45 26.47 <br /> MW-14 Aug09 78-88 27.34 <br /> MW-15 Sep 09 25-45 27.83 <br /> MW-16 Sep 09 75-85 28.34 <br /> MW-17 Sep 09 100-110 28.67 <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 u9/L) WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> Dec 09 <br /> TPH-g NA NA 190,000 100,000 5 <br /> TPH-d NA NA NA NA 56 <br /> Benzene NA NA 14,000 13,000 0.15 <br /> Toluene NA NA 16,000 13,000 42 <br /> Eth (benzene NA NA 3,500 2,100 29 <br /> Xylenes NA NA 10,000 7,800 17 <br /> MTBE NA NA 32,000 <1 5 <br /> TBA NA NA NA NA 12 <br /> 1,2-DCA NA NA 310 310 0.4 <br /> Lead NA NA NA NA 15 <br /> PCE NA NA NA NA 0.06 <br /> TCE NA NA NA NA 0.8 <br /> NA Not Analyzed, Not Applicable, or Data Not Available <br /> WQO Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> California En vironmental Protection Agency <br /> .b <br /> Z a Recyc%d Paper <br />