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RPR-20-2000 THU 04;51 PH RMC Ms. Lori Potter April 20, 2000 Page 5 FAX ID :3036656959 R 20'00 19. Section 6 2 nag~j,~ third naraeraoh~ second se~ronra P. 12 16:34 No .010 P.06 Inc A reference for "the Dizon Method" for evaluating outliers should be provided, or the method should be described, in detail, 20. Section Q.2 pie f5 th~ ar gntnh third and fourth sentencgs An example illustrating how the Permit Condition Values would be determined should be provided. 2T. Section I.4, jb7de 76. fist paray~rap~, second sentence Use of the term "first" with respect to the initial verification sample is confusing. It Is not clear if a "second" verification sample will always be collected, or only if the first sample falls outside of the Permit Condition Value. 22. Section 4.4. R+lsl.>'~ fast paratranh. rich sentence As we read this, two out of three samples could fall outside of tfie Permit Condition Value and no action would betaken: We feel that it would be appropriate to at least submit concentration versus time plots for all water quality parameters to ensure that an increasing concentration trend is not starting. 23. Tables 2.4 and 3-f The locations of these wells should be illustrated on Figure 1-1. 24. Table 4•f An analysts should be performed to determine that uranium andlor radium are the source of the elevated gross alpha activity detected in the West Pit waters. Also, Footnote 2 indicates that the tadiofogical analyses will be performed "if necessary". TR-028 must specify the number and frequency that these analyses. 25. Fi re 2- The text discussed a wafer level decline of 13 feet through February 2000. This figure only shows a 6.5-foot water level decline through January 2000. This figure should be updated to include all data discussed in the text. 26. FSUt32 2.2 and 2-3 These figures should be updated to include more recent data.