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information regarding remediation <br /> system and the system' s <br /> effectiveness in destroying PCE, <br /> TCE and cis-1, 2, DCE. And <br /> informing us that Lincoln Center <br /> has an ongoing remedial <br /> investigation <br /> July 23 , 1991 Requested information from Mr. <br /> Wilbur H. Smith II concerning the <br /> Lincoln Center investigation. Sent <br /> him the information he requested. <br /> August 19, 1991 WEGE letter documenting <br /> conversations with San Joaquin <br /> County Health and the consultant <br /> for Lincoln Center, Mr. Gerry <br /> Nakano of Kennedy/Jenks "Lincoln <br /> Center ground water plume has not <br /> been fully defined" . Mr. Gerry <br /> Nakano stated that his client has <br /> not authorized him to share <br /> information with us regarding the <br /> Lincoln Center investigation. <br /> October 10, 1991 Initial start-up of vapor <br /> extraction system for inspection. <br /> October 17, 1991 Start up of vapor extraction <br /> system. <br /> October 28 , 1991 Letter from City of Stockton, Dept <br /> of Municipal Utilities . Denied our <br /> variance requesting ground water <br /> discharges to the sanitary sewer. <br /> May 14 , 1992 Application for sewer discharge <br /> finalized and signed. <br /> June 2, 1992 Sewer discharge permit approved for <br /> 1, 200 gallons per day. <br /> July 6 1992 Workplan to define lateral extent <br /> east of existing wells . <br /> September 28, 1992 Completion of two down gradient <br /> ground water monitoring wells ; MW11 <br /> and MW12 . <br /> December 1, 1992 Commence of purging selected wells <br /> twice a week as interim ground <br /> water mediation. <br /> August 30 , 1993 Discontinue purging of selected <br /> 6 <br />