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Marci's Diesel Service '_ - 2 - -` November 28, 2011 <br /> clay <br /> Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Depth to Water <br /> (feet bgs) (feet bgs) <br /> (May 2011 <br /> MW-1 Aug00 49-64 47.59 <br /> MW-2 Aug00 46-61 47.00 <br /> MW-3 Aug00 44-59 46.78 <br /> MW-4 Aug00 35-55 47.48 <br /> MW-5 Aug00 30-45 47.62 <br /> MW-6 Aug00 30-45 46.95 <br /> MW-7 Jun 02 31-66 47.90 <br /> MW-8 Jun 02 31-46 47.09 <br /> MWA 04 Jun 02 66-71 47.87 <br /> MWA 05 Jun 02 66-71 47.50 <br /> MW-106 Jun 02 66-71 47.00 <br /> Petroleum H drocarbon Constituent Concentration <br /> Contaminant Soil m /k Water (ug/L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> (May 2011 <br /> TPI-Ig NA NA 1,000 NA 5 <br /> TPHd NA NA 42,000 1,700 56 <br /> Benzene NA NA 4.9 NA 1 <br /> Toluene NA NA 14 NA 150 <br /> Eth (benzene NA NA 7 NA 300 <br /> Xylenes NA NA 14 NA 1,750 <br /> MTBE NA NA 5.5 NA 5 <br /> TBA NA NA NA NA 12/1,200a <br /> 1,2-DCA NA NA NA NA 0.5 <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 /> "According to GeoTracker,wells <br /> e California Department of Public Health Notification Level/Response Level <br /> Site Description <br /> The Site is located at 2969 Loomis Road in Stockton, California. The Site is bounded on all <br /> sides by commercial trucking facilities. The surrounding land use is commercial. <br /> Site History/Assessments <br /> In April 1987, soil contamination was identified during the removal of USTs. To date, 11 <br /> monitoring wells have been installed and monitored regularly. A Site map showing the location <br /> of the former USTs, monitoring wells and groundwater level contours is provided at the end of <br /> this five year summary. <br />