SITE INFORMATION AND CORRESPONDENCE

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EPA COMMENTS ON THE MINUTES OF THE PROJECT MANAGER MEETING OF JANUARY 13-14, 1993 1. DDRW-Tracy RI/FS FFA Schedule Approval The minutes would more accurately reflect the discussions if the third sentence read "EPA requested that the Baseline Risk Assessment (BAR) Work Plan provide more detail on how the risk assessment will be performed. • Please revise the minutes accordingly. 2. DDRW-Tracy RI/FS FFA Schedule Approval The third to the last sentence states "CoE will review and address EPA's comments, through correspondence, on the BRA Work Plan." However,EPA does not recall that there was a conclusion that EPA comments would be addressed through correspondence. [Note: In a subsequent conversation between CoE and EPA,CoE requested clarification from EPA that the risk assessment comments were expected to be addressed in the Work Plan rather than through a separate response.] • Please delete the words "through correspondence." 3. DDRW-Tracy RI/FS FFA Schedule Approval The second to the last sentence states"They will develop generic pathways that are not site specific to DDRW-Tracy." However, at the meeting EPA emphasized that while SWMU-specific information is not yet conclusive, the preliminary pathways should be appropriate for what is currently known about contamination at DDRW-Tracy. • Please revise the sentence accordingly. 4. Review of IRM Status The text suggests that obtaining a NPDES permit to discharge temporarily to an irrigation canal was "the least favorable." • Please explain in the minutes why this is the least favorable. 5. Format for Quarterly and Annual Monitoring Reports In regard to a more efficient reporting format the fourth sentence states "EPA agreed with RWQCB and stated they would be interested in seeing JMM format." EPA agreed with the RWQCB that the format could be made more efficient. EPA did not necessarily agree that the DDRW-Tracy format should be similar to DDRW-Sharpe reports. [Format options should be considered in the conference call which is to be scheduled.] • Please revise the text to reflect that EPA agreed with the RWQCB that the format can be made more efficient.