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Fayette Manufacturing C - 2 - October 25, 2011• <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 Jul 95 5-22 6.23 <br /> MW-2 Jul 95 5-25 7.72 <br /> MW-3 Jul 95 5-25 7.38 <br /> MW-4 Mar 99 6-26 6.01 <br /> MW-5 Mar 99 6-26 7.31 <br /> MW-6 Mar 99 6-26 7.28 <br /> MW-7 Jan 05 10-20 7.01 <br /> MW-8 Jan 05 10-20 7.30 <br /> MW-9 Oct 09 5-25 5.53 <br /> Petroleum Hydrocarbon Constituent Concentration <br /> Contaminant Soil (mg/kg) Water (ug/L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> (May 2011 <br /> TPHg NA NA 3,500 190 5 <br /> Benzene NA NA 1,800 53 1 <br /> Toluene NA NA 28 1.3 150 <br /> Eth (benzene NA NA 220 4.1 300 <br /> Xylenes NA NA 183 17 1,750 <br /> MTBE NA NA 46 2.6 5 <br /> TBA NA NA 6 NA 12/1,200- <br /> 1,2-DCA NA NA 20 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 /> a California Department of Public Health Notification Level/Response Level <br /> Site Description <br /> The Site is located at 7675 West Eleventh Street in Tracy, California. The Site is bounded by <br /> businesses to the west, north and east and West Eleventh Street to the south. The surrounding <br /> land use is commercial. <br /> Site History/Assessments <br /> In October 1986, soil contamination was identified during the removal of USTs. To date, nine <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 /> Remediation Summary <br /> • Free Product: No free product was documented throughout the life of this case <br /> • Soil Excavation: Unknown <br />