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GeoTracker , Page 1 of 1 <br /> STATE WATER RESOURCES CONTROL BOARD <br /> GEOTRACKER <br /> FORMER TEXACO STATION (T0607700195) - MAP <br /> 440 CHARTER WAY W CLEANUR OVERSIG�ENCM <br /> STOCKTON,CA 95206 SAN JOAQUIN COUNTY LOP(LEAD).CASE#:loss <br /> SAN JOAQUIN COUNTYCASEWORKER:LORI DUNCA <br /> LUST CLEANUP SITE N <br /> CENTRAL VALLEY RWOCB(REGION 5S)-CASE#:390268 <br /> CASEWORKER.I4MES RARTON <br /> CUE Claim#• 6155 <br /> CUF Amount Paid $869,133 <br /> Regulatory Profile <br /> CLEANUP STATUS <br /> OPEN-SITE ASSESSMENT AS OF 10/23/2007 <br /> POTENTIAL CONTAMINANTS OF CONCERN POTENTIAL MEDIA AFFECTED <br /> GASOLINE AQUIFER USED FOR DRINKING WATER SUPPLY <br /> FILE LOCATION <br /> LOCALAGENCY <br /> GROUNDWATER MONITORING FREQUENCY <br /> #OF WELLS MONITORED-SEMI-ANNUALLY:30 <br /> Site History <br /> October 1988-Soil contaminated with petroleum hydrocarbons was discovered during dispenser replacement activities.Minor <br /> overexcavation was performed. <br /> May 1989-May 1990-Soil borings and groundwater monitoring wells were installed. <br /> April 1992-Soil vapor extraction wells were installed and a vapor extraction pilot test was performed. <br /> September 1993-Additional groundwater mentoring wells were installed. <br /> June 1999-Four underground storage tanks were removed from the site. <br /> Nov 2000, Nov 2001+Sept 2004-Cone penetrometor test borings were installed. <br /> August 2002-Deep groundwater montioring wells were installed. <br /> October 2005-Additional deep groundwater monitoring wells were installed. <br /> October 2007-Additional shallow and deep groundwater monitoring wells were Installed. <br /> The site is still not defined;a work plan for additional investigation was approved for implementation by the EHD on March 24, <br /> 2009. <br /> Copyright m 2008 State of California <br /> 0.28125 Se ds <br /> http://www.geotracker.swrcb.ca.gov/profilq_report.asp?global—id=T0607700195 9/11/2009 <br />