REP32727 - Laserfiche WebLink

Home Browse Search

Mr. Boulay 1993/94 AHR Responses Page 6 lasting a few days.) Page 13 has been revised to include this information. MCC has contracted with Wright-Wazer Engineers to assist MCC in updating the Probable Hydrologic Consequence permit discussion to include the large inflows seen during WY 1996, and will submit this in the form a revision application in the next few months. 14. Please find a revised Page 15 enclosed thaz corrects Exfubit 3 to read Figure 3. I5. Mme inflows were a component of the wazer collected in Pond MB-1, although a minor part due to the typically small or "weepy" nature and short duration of past inflows. MCC does not believe thaz sampling and analyzing individual inflows provides any useful data as the true "impact" of mine water inflow quality is monitored by determining the quality of any flows containing such inflows that are to be discharged from the mine site (i.e., Pond MB-1). 16. Please fled a revised page 17 enclosed. Table D-2, Appendix D has been revised to read Table J-1, Appendix J. 17. Please find revised pages 1 and 2 of 8 of Table F-1 that corrects the Baseline Max and Mm titles. 18. Please find a revised Table H-1 enclosed, data for SG-1 and GP-1 has been corrected. 19. The footnote on Table H-1 indicates that laboratory analyses were accomplished by ACZ, Inc. Please find a revised page 26 that indicates thaz Lrboratory Analysis Reports are on file az the West Elk Mme. 20. Sampling protowl is prescribed in the permit on page 205-78, which ensures consistency. 21. As suggested, the quality of groundwater from the B Seam will be compared to baseline values. Consistent use of both total and dissolved metals analyses for Fe and Mn for future sampling efforts is prescribed (see footnote 3, Table 1.4-1, of the 1995 AHR) 22. Values in Table E-1 have been corrected (copy enclosed), and Page 22 has been revised. The manganese baseline maximum of 0.500 for the lower station is suspect fora 0.075 maximum az the upper station, and will be reviewed. 23. MCC will attempt to include observations about each of the sediment ponds in the AHR In addition to the above changes, please find a revised page 20 regarding the drop in wazer levels in well SOM-2-H (1994 AHR), as there was and is no basis for stating an influence from mining occurred. The slopes are unstable in the vicinity of the well. A revised hydrograph for well JMB-12 (1994 AHR) is also enclosed.