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4. Table B-2, Well LM025AUA Table B-2 states that well LM025AUA is "not within 100 feet of an extraction well. " As a result, per the Sampling Frequency Decision Flow Chart (Figure 2-1) , the sampling frequency for this well was determined to be annual sampling. However the coordinates of LM025AUA in the Annual Monitoring Report, Table 2.5-1, indicate the well is 9 feet from extraction well EW037AU. Thus, the statement cited above in Table B-2 is incorrect. Per the Sampling Frequency Decision Flow Chart (Figure 2- 1) , the sampling frequency for this well should be semiannually. 5. Table B-2, Wells LM058AU, LM066A, and LM093AU Table B-2 indicates that wells LM025AUA, LM066A, and LM093AU are "not within 100 feet of an extraction well. " However, the coordinates in the Annual Monitoring Report, Table 2.5-1, indicate that LM025AUA is 80 feet from EW034AU, that LM066A is 41 feet from EW021A, and that IM093AUA is 10 feet from EW036AU. Please revise Table B-2 accordingly and reassess the sample frequency for these wells. 6. Table B-2, Well LM070C Table B-2 indicates the nearest extraction well to LM070C is EW013C. However, the nearest extraction well, as shown on Figure 3-2A, appears to be EW031C, located approximately 900 feet to the west. However, another well, TW013C, is located immediately adjacent to LM070C, as shown on Figure 3-2A, but it is not clear if this is an extraction well. Please clarify which extraction well is closest to LM070C. 7. Table B-2, Well LM095AU Analyses for VOCs and SVOCs should be included in. the analyses for samples from LM095AU to be consistent with ROD, Table 9-2. 8. Table B-2, Well LM097AU Please summarize the rationale in Table B-2 for dropping semiannual analyses for simazine and dioxins/furans that were performed in 1998. The Site-Wide Comprehensive ROD, Section 9.7.4 (SWMU 8) , does not specify criteria for discontinuing these analyses, and Table 9-2 of the ROD identifies groundwater monitoring for these soil contaminants. 9. Table B-2, Well LM163A Please include the sampling frequency rationale for LM163A in Table B-2 . 10. Table B-2, Wells LM166AU and LM167AU Dioxins/furans have been dropped from the analyses for 1999, following ROD criterion (Site-Wide Comprehensive ROD, Sections 9.7.3 .6 and 9.7.3 .8) of at least two consecutive semiannual samples, which were analyzed in 1998. However, please consider that the five-year review 3