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James T. Allen , Ph.D Page 5 July 31 , 1987 The workplan has been revised to take into account the changes in monitoring frequency, and to more clearly address the intent and rationale for the monitoring program. McCormick and Baxter believes that the monitoring plan de- scribed in the revised workplan will provide sufficient in- formation to meet the stated goals of defining limits of contamination and protecting public health. Comments 20 and 21 : McCormick & Baxter and the State agree on the purpose and needs of aquifer testing. However, DHS and RWQCB comments regarding the technical methods of implementing aquifer tests remain the major unresolved issue between McCormick & Baxter and the agencies . Additionally, there appears to be disagreement between DHS and RWQCB re- garding some technical aspects of aquifer test methods . As was agreed during the June 23 meeting, aquifer testing will not proceed until these issues have been resolved. A meeting should be held between DHS and RWQCB groundwater specialists , and CH2M HILL groundwater specialists to resolve these issues. McCormick & Baxter suggests that this meeting occur after the next round of wells is installed, and will await notifica- tion of this meeting. Comments 34 , 37 , 39 , and 40 : These comments apply to various activities under the SRWCF Treatability Assessment. McCormick & Baxter agrees that some or all of these activities may be required but it is necessary to first initiate data collection and the feasibility study. Then, if these items are required, they will be implemented in order to provide the appropriate information. Comment 53 : The part of Comment 53 that applies to sample containers has been addressed in the revised workplan. How- ever, McCormick & Baxter believes that sample integrity will be maintained if soil samples are split in the laboratory under controlled conditions . The potential for cross contami- nation and false positives results is much higher by handling samples in the field than in the laboratory. Because soils samples need not be separated in order to preserve splits in different manners , it is most appropriate to ship single samples and carefully split the samples in the lab. In accordance with your letter of July 3 , 1987 , McCormick & Baxter has initiated workplan activities as of July 20 , 1987 . There will be a lot of work performed in the coming months