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q DEFENSE LOGISTICS AGENCY <br /> DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN <br /> P.O.BOX 9 <br /> 1 STOCKTON,CAA 95 95296 <br /> IN REPLY <br /> DDJC-FA May 30, 2001 <br /> REFER T0: <br /> Mr. Michael Work <br /> U.S. Environmental Protection Agency <br /> Region 9 <br /> 75 Hawthorne Street <br /> San Francisco, CA 94105-3901 <br /> Dear Mr. Work: <br /> Pursuant to the DDJC-Tracy Site Federal Facilities Agreement (FFA), Defense Distribution <br /> Depot San Joaquin (DDJC)requests an extension for the DDJC-Tracy Annual Monitoring <br /> Program Report (Primary), OU1 Groundwater Pesticides Design (Primary), and the North Depot <br /> Alternative Cover Site Design and Construction Plans (Primary) documents. <br /> These extensions are requested in accordance with Sections 9.2(e) and 26.1 of the FFA. <br /> The Annual Monitoring Report extension is requested to respond to a request by Mr. Rich <br /> Howard for additional time to review the draft final document response to regulatory agency <br /> comments. <br /> The DUI Groundwater Pesticides Design 60% design extension is requested as discussed at the 2 <br /> May 2001 RPM meeting. DDJC-Tracy is evaluating alternative treatment scenarios as a result of <br /> obacrvzd extraction well effectiveness and limitations on treated water discharges, and the <br /> additional time is requested to adequately review the various alternative treatment options. <br /> The North Depot Alternative Cover Site Designs and Construction Plans extension is requested <br /> as discussed during,the 2 May 2001 RPM meeting, and finalized with further RPM input on 22 <br /> May. DDJC is revising the apatite mineralization strategy, and the additional time is requested <br /> to make revisions to the design documents and work plans. <br /> These changes are included in the enclosed revised FFA Schedule matrix and summarized <br /> below. <br /> Document <br /> Item#1 Document Title Final Submission Finalization <br /> From: Annual Monitoring 31 May 01 31 May 01 <br /> Program Report <br /> To: Annual Monitoring 29 June 01 29 June 01 <br /> Program Report <br /> i� <br />