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Jim Pinasco <br /> June 21, 1994 <br /> Page 10 <br /> Recommendations <br /> LM62A and LM24A should be added to Figure 5-17. <br /> 15. Section 5.2 .5.4 Evaluation of Historic DDD, DDE, and DDT <br /> Concentration Trends, second sentence, page 5-21 <br /> The Report states "None of these has not been detected in <br /> these wells with any consistency. " Therefore, the meaning of the <br /> sentence is some of the compounds has been detected because the <br /> sentence uses a double negative. <br /> Recommendations <br /> The text of the Report should be revised if the true meaning <br /> of the sentence is none of the compounds have been detected with <br /> consistency. <br /> 16. Figures 6-4a and 6-4b, Extraction Performance Monitoring <br /> Well Quarterly PCE & TCE Concentrations <br /> The horizontal scale of the graphs on Figures 6-4a and 6-4b <br /> represents ground water monitoring quarters and is labelled with <br /> only a number representing a quarter. However, it is not clear <br /> to what time period the quarters correspond because there is no <br /> indication of month or year. <br /> Recommendations <br /> The month and year corresponding to the specific quarter <br /> should be indicated on the horizontal scale of each graph or in a <br /> note on Figures 6-4a and 6-4b. <br /> 17. Future QMR Report Format, Section 8.2.0.2 , pages 8-1 and 8-2 <br /> The contents of the proposed quarterly monitoring reports <br /> (QMR) does not include field logs with purging data (e.g. , purge <br /> volumes and field parameter measurements) or graphs of monitoring <br /> data at indicator wells to show changes in contaminant <br /> concentrations and water elevations with time. <br /> MS.kI <br /> MS63.064/10B <br />