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Closure Documentation—7500 list Eleventh Street, Tracy, C,4. <br /> Page 4 <br /> characterization of the site and the groundwater monitoring program that have been <br /> submitted to the SJCEHD, the RWQCB and Geotracker. The latest drawing presenting <br /> the relevant information is Figure 2 in: <br /> Dietz Engineering and Construction, Inc. (2011), Groundwater-quality <br /> Monitoring Report-July 2011, Former Fueling Station, 7500 West Eleventh <br /> Street, Tracy, California. October 2011. <br /> 2.3 Figures Depicting Lithology (Cross Sections), Treatment System Diagrams <br /> Cross Sections of the site lithology have been included in all reports related to the <br /> characterization of the site and the groundwater monitoring program that have been <br /> submitted to the SJCEHD, the RWQCB and Geotracker. The latest drawing presenting <br /> the site lithology are included in: <br /> Dietz Engineering and Construction, Inc. (2011), Groundwater-quality <br /> Monitoring Report -July 2011, Former Fueling Station, 7500 West Eleventh <br /> Street, Tracy, California. October 2011. <br /> Groundwater affected by floating product was remediated by pumping into vacuum <br /> trucks and disposing off site, as was contaminated soil excavated from beneath the pump <br /> island of the former fueling station. Following that, treatment has been by monitored <br /> natural remediation. Thus, in terms of the remediation technologies actually applied, <br /> treatment system diagrams were not applicable to the 7500 West 11th Street site. <br /> However, treatment system diagrams were developed for several candidate remediation <br /> technologies and were presented in: <br /> The San Joaquin Company Inc. (2007), Corrective Action Plan for Former <br /> Fueling Station, 7500 West Eleventh Street, Tracy, California. July 2007. <br /> The San Joaquin Company Inc. (2007), Corrective Action Plan Addendum <br /> for Former Fueling Station, 7500 West Eleventh Street, Tracy, California. <br /> October 2007 <br /> The San Joaquin Company Inc. (2003) Work Plan for Refined Plume <br /> Definition and Management of Floating Product at Former Fueling Station, <br /> 7500 West Eleventh Street, Tracy, California. December 2003. <br /> 2.4 Stockpiled Soil Remaining On-site or Off-site Disposal (Quantity). <br /> There is no stockpiled soil remaining on site. <br /> 521.25 tons of contaminated soil excavated from beneath former service station's pump <br /> island was disposed off-site at a permitted facility in December 1998.That removal was <br /> documented in: <br /> DEC <br />