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Draft Monitoring Program Report -2- 11 September 1992 <br /> DDRW, Tracy <br /> Risk Assessment, may have been affected by an off-site source of volatile <br /> organic constituent (VOC) contamination. We question the use of only <br /> these five wells to determine background concentrations. <br /> We would like to discuss our comments at the next Project Manager's Meeting. <br /> In particular, we would like reach an agreement among all of the Project <br /> Managers regarding an on-going monitoring program to be conducted until the <br /> site-wide RI is completed. <br /> If you have any questions, please call me at (916)361-5670. <br /> CAMILLA WILLIAMS <br /> Engineering Geologist <br /> CKW:cw <br /> Enclosure <br /> cc: Mr. Marshall Cloud, Defense Distribution Region West, Tracy, Tracy <br /> Mr. Steve Light, U. S. Army Corps of Engineers, Huntsville, Alabama <br /> Mr. Michael Work, U. S. Environmental Protection Agency, Region IX, San <br /> Francisco <br /> Mr. Jim Pinasco, Department of Toxic Substances Control , Region 1, <br /> Sacramento <br /> Ms. Dianne Hinson, Public Health Services of San Joaquin County, <br /> Environmental Health Department, Stockton <br />