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JM Equipment Co. • -2- • <br /> March 24, 2009 <br /> Claim No. 12607 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s Nov 08 <br /> MW-1 Apr 99 ?-38 15.90 <br /> MW-2 Apr 99 ?-38 15.93 <br /> MW-3 Jun 00 15-35 15.44 <br /> MW-4 Apr 99 15-35 15.22 <br /> MW-5 Apr 99 15-35 15.46 <br /> MW-6 A r99 15-35 15.50 <br /> MW-7 Jun 01 10-30 15.08 <br /> MW-8 A r99 15-35 16.07 <br /> MW-9 Apr 99 15-35 15.67 <br /> MW-10 Jun 01 11-30 15.85 <br /> MW-109 Jun 01 5-80----T 15.67 <br /> • MTBE THREAT CLASSIFICATION: C <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 Industria <br /> Maximum Latest (ug/L) <br /> Soil Dermal (Nov 08) <br /> Residential(mg/kg) (mg/kg) <br /> TPH-g NA NA 83 450 162,000 110,000 5 <br /> TPH-d NA NA 83 450 NA NA 56 <br /> Benzene NA NA 0.044 210 6,9 42 34,000 00 <br /> Toluene NA NA 2.9 210 15,000 6,900 42 <br /> Eth (benzene NA NA 2.3 5.0 11,800 3,600 29 <br /> Xylenes NA NA 2.3 100 19000 13,700 17 <br /> MTBE NA NA 0.023 65 1,700 19.7 5 <br /> TBA NA NA 0.075 320,000 380 ND 12 <br /> 1,2-DCA NA NA 0.0045 0.48 800 NA 0.4 <br /> Lead NA NA 200 750 NA NA 15 <br /> PCE NA NA 0.37 0NA NA 0.06 <br /> T NA NA 0.46 4.1.1 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 /> California En vironmental Protection Agency <br /> A <br /> �d RecydedPapet' <br />