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Shell #204-7525-0104 _2_ July 20, 2010 <br /> Claim No. 5017 <br /> B. Monitorin Well Information <br /> Well Designation Date Installed Screen Interval Most Recent TVV <br /> feet b s 010 <br /> 45-65 33.98 <br /> MW-1 Jul 90 45-65 33.48 <br /> Jul 90 <br /> MW-2 34.80 <br /> MW-3 Jul 90 45-65 35-55 33.50 <br /> Oct 97 <br /> MW-4 33.05 <br /> MW-5 Oct 97 35-55 34.38 <br /> Oct 97 35-55 <br /> MW-6 35-55 33.13 <br /> MW-7 Oct 97 33.60 <br /> 25-45 <br /> Au 02 <br /> MW-8 33.60 <br /> MW-9 Au 02 25-45 32.43 <br /> MW-10 Dec 01 30-45 <br /> MW-1 1 Dec 01 25-45 <br /> Feb 04 33.25 <br /> 32-47 <br /> MW-12 75-80 33.72 <br /> MW-13 Feb 04 34.16 <br /> MW-14 Se 06 30-45 <br /> Se 96 20-45 34.12 <br /> VEW-2 18 42 34.69 <br /> VEW-3 Feb 06 34.91 <br /> VEW-4 Feb 06 45-65 <br /> Feb 06 20-45 3A 17 <br /> VEW-5 34.05 <br /> VEW-7 Feb 06 28.42 <br /> MTBE THREAT CLASSIFICATION: D <br /> LAND USE DESIGNATION: commercial and residential <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 <br /> Water u /L WQOs <br /> Maximum Latest Maximum Lat2e0S10 (uglL) <br /> TPH- NA NA 190,000 59, 0 56 <br /> TPH-d NA NA <br /> NA Benzene NA NA 10,000 1,200 0.15 <br /> Toluene NA NA 21,000 2,300 42 <br /> Eth (benzene NA NA 7,400 2,500 29 <br /> X lenes NA NA 35,000 10,000 17 <br /> MTBE NA NA 570 34 5 <br /> NA NA 130 13 12 <br /> TBA 0.4 <br /> NA <br /> 1,2-DCA NA NA 2 A NA 15 <br /> 34 <br /> Lead <br /> NA NA <br /> PCE NA NA 5,900 NA 0.06 <br /> NA <br /> TCE NA NA NA 0.8 <br /> California Environmenta/Protection Agency <br />