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Marci's Diesel Service" -2- December 20, 2010 <br /> Claim No. 7709 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent <br /> (feet bgs) Depth to Water <br /> (May 2010 <br /> MW-1 Aug00 49-64 50.05 <br /> MW-2 Aug00 46-61 49.63 <br /> MW-3 Aug00 44-59 49.15 <br /> MW-4 Aug00 35-55 49.91 <br /> MW-5 Aug00 30-45 50.07 <br /> MW-6 Aug00 30-45 49.44 <br /> MW-7 Jun 02 31-66 50.32 <br /> MW-8 Jun 02 31-46 49.48 <br /> MW-104 Jun 02 66-71 50.27 <br /> MW-105 Jun 02 66-71 49.91 <br /> MW-106 Jun 02 66-71 49.43 <br /> EW-4 Sep 10 45-70 - <br /> EW-5 Sep 10 30-55 - <br /> EW-6 Sep 10 15-35 - <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 Water (ug/L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> Jun 2010 <br /> TPH-g NA NA 1,000 NA 5 <br /> TPH-d NA NA 99,000 9,780 56 <br /> Benzene NA NA 4.9 NA 0.15 <br /> Toluene NA NA 2.9 NA 42 <br /> Eth lbenzene NA NA 7 NA 29 <br /> Xylenes NA NA 14 NA 17 <br /> MTBE NA NA 5.5 NA 5 <br /> TBA NA NA NA NA 12 <br /> 1,2-DCA NA NA NA NA 0.5 <br /> Lead NA NA NA NA 15 <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 /> V. FREE PRODUCT: sheen in MW-4, MW-5, and MW-7, sheen last in June 2009. <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> California En vironmental Protection Agency <br /> Za Recycled Paper <br />