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DEC 23 '96 09~52AM DIViMINERALS&GEOLOGY P.2~3 • • 5. lin the third paragraph on Page 15-4, reference is made to "Monitor Site SW-N107". This site, though identified on Map'Fshibit 7-1", is not listed in either Table 15 7 on Page 15-22 or in We Table 1 of the 1995 AHR Please update the permit/AHR to reflect the status of obtaining data from this monitoring point 6. In the &st paragraph on Page 15-5, the permit discuses NPDES discharge points 001, 002, 004, 005, 006 and 007. In Table 15-7 of the permit (Page 15-ZO) and in Table 1 of the 1995 AHR, NPDES discharge point 003 is listed. The current NPDES Permit still lists outfall 003, Werefore, should this additional point be included in the permit text on Page 15-5? 7. On Page 15-9 of the permit, it is stated 'Peabody is requesting a variance from further analysis of chromium and silver in ground and surface water samples....". This portion of the permit text should be updated to reflect the status of this variance. 8. On Page 15-10 of the permit, a portion of the first paragraph reads "The monitor well network rnntisu of 35 monitor wells drilled and installed by Peabody. Fifteen of the wells are located at Nucla mine and 19 are at Nucla East mining area' This sum equals 34. Please coma the portion of the permit that is in error. 9. The first paragraph on Pages 15-10 of the permit contains a sentence that states, in part, "Fifteen of the wells are located at Nucla thine .. ". However, on Page 15-19 of the permit, a sentence in the second paragraph states, "twelve groundwater wells will be monitored in New Horizon 1 mine area". On Page 6 of the 1995 AHR, a sentence in the first paragraph reads "the total number of groundwater monitoring locations at New Horizon 1 is fourteen". Finally, Appendix A of the AHR reported data from sixteen wells in the Mine 1 area. The wrrect mrmber of welLt being monitored at New Horizon 1 needs to be reflected consistently throughout the permit and in the AHR. 10. The first paragraph on Pagc IS-10 of the permit matains another xntence that states, in part, "...19 (wclls) are at the Nucla East mining area". However, on Page 15-21 of the permit, Table 15-7 indicates eleven wells being monitored at Ncw Horizon 2. On Page 9 of the 1995 AHR, a xntence in the first paragraph reads 'There are 14 (groundwater monitoring) sites at Ncw Horizon 2". Finally, Appendix A of the AHR rcported data trom 10 wells in the Mine 2 area. The correct number of wells being monitored at New Horizon 2 needs to be reflected throughout the permit and in the AHR. 11. Table 15-5 (permit Page 15-11) should be revised to reflect which wells arc currently active and the date other wells were deleted from the monitoring program.