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2 Site Background <br /> butyl ether(MTBE)(0.055 mg/kg). Soil samples were not collected from the ground surface to <br /> 20 feet bgs. Monitoring well MW-1 was sampled quarterly for one year in 1999. Review of <br /> results from the fourth quarter monitoring event indicate the presence of MTBE only at a <br /> concentration of 0.04 parts per million. <br /> On March 16, 1999,two additional monitoring wells were installed by ATC Associates on site; <br /> one located approximately 8 feet northwest of the northwest comer of the fire station and one <br /> approximately 8 feet east of and roughly centered on the fire station building. No soil samples <br /> were collected from these borings during installation of the monitoring wells.These two <br /> monitoring wells were sampled quarterly for one year in 1999 and no chemicals were detected <br /> above the laboratory reporting limits during the four quarters of monitoring. The groundwater <br /> monitoring reports of the three on site monitoring wells indicate groundwater flow to the east- <br /> southeast and southeast. Following one year of quarterly groundwater monitoring,the site was <br /> granted case closure by the SJCEHD in a letter dated April 17,2000. <br /> Phase I Environmental Site Assessment,2010,E&E <br /> In June of 2010, a Draft Phase I ESA report was prepared by E&E as part of this TBA. As part <br /> of the 2010 Draft Phase I ESA, E&E identified the following recognized environmental <br /> conditions(RECs) in connection with the subject property: <br /> • The City of Stockton Fire Department Station 3 located on the northern portion of the <br /> subject site is a LUST site that is documented to have released petroleum hydrocarbons to <br /> the groundwater. Based on the regulatory history,this facility is considered to potentially <br /> pose a REC to the subject site. <br /> 002693.1501.OIBR 2-4 <br /> EI Concilio No.2 <br />