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Michelotti's Auto Repair - 2 - January 26, 2012 <br /> Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Depth to Water <br /> (feet bgs) (feet bgs) <br /> - (May 2011 <br /> MW-2 Apr 93 ?44 10.43 <br /> •MW-3 a -Apr-931-- <br /> MW-4 <br /> A r-931 MW-4 Sep 94 ?-42 9.71 <br /> MW-5 <br /> Sep 94 ?-31 _ 10.75 <br /> MW-6A Apr 01 ?-27 9.61 <br /> MW-613 Apr 01 ?-38 9.52 <br /> MW-7A Apr 01 ?-38 9.73 <br /> MW-713 Apr 01 ?-38 9.62 <br /> MW-8A Jul 04 ?-29 9.75 <br /> MW-1813 Jul 04 ?-37 10.38 <br /> MW-9A Jul 04 ?-29 9.23 <br /> MW-913 Jul 04 ?-40 9.21 <br /> --:-.Jul 04..- 9.30 <br /> Petroleum H drocarbon Constituent Concentration i <br /> Contaminant Soil m /k Water u IL WQOs' <br /> Maximum Latest _ Maximum Latest (ug/L) <br /> { (May 2011 <br /> TPHg NA NA 45,000 2,600 5 <br /> Benzene NA NA 5,900 2.3 0.15 <br /> Toluene NA NA 900 0.8 42 <br /> Eth [benzene NA NA 1,400 5.3 29 <br /> Xylenes NA NA 7,400 48 17 <br /> MTBE NA NA 170 F 2 5 <br /> TBA NA NA 130 <5 12/112005-7 <br /> 1,2-DCA <br /> 211,2005- <br /> 1,2-DCA NA NA 38 0.5 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 /> SiteDescription <br /> The Site is located at 1876 Country Club Blvd. in Stockton, California. The Site is bounded by <br /> Mission Road to the west, Country Club Blvd. to the north, businesses to the east and a <br /> business.to the south. The surrounding land use is mixed residential and commercial. <br /> Site History/Assessments <br /> In 1989, soil contamination was identified during the removal of USTs. To date, 13 monitoring <br /> wells have been installed and monitored regularly. <br />