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J+Rcc erv� UNITED STATES ENVIRONMENTAL PROTECTION AGENCY <br /> A Region 9 <br /> 4 �yrl►%7 75 Hawthorne Street <br /> San Francisco CA 94105-3901 <br /> May 8, 2000 Hl'�d�W1�1N� <br /> Mr. Dale Clemens <br /> Environmental Protection Office /n® <br /> DD-Tracy g " <br /> P.O. Box 960001 <br /> Stockton, CA 95296-0250 <br /> RE: Response to Comments for "Well Monitoring Program, Draft 1999 Annual <br /> Monitoring Report" dated December 1999 for Tracy Defense Depot <br /> Dear Dale, <br /> Thank you for the opportunity to review the response to comments. Your <br /> contractor agreed with 15 of 25 of EPA's comments and modified the Report to <br /> address the comments. Your contractor has partially responded to two comments <br /> and has disagreed with 9 comments. Most of the disagreements take the form of <br /> refusals to supply information. However, EPA believes that the requested <br /> information may be important for understanding the effectiveness of the <br /> groundwater treatment system installed at the base. <br /> Attached please find a list of RTCs which did not adequately address EPA <br /> comments. <br /> Please feel free to contact me at 415-744-2392 if you have any questions <br /> or comments. <br /> Sincerely, <br /> Michael Work <br /> Federal Facilities Cleanup Office <br /> Superfund Division (SFD-8-3) <br /> cc: (See Distribution List) <br />