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1999, BRL stated that four monitoring wells weie being drilled; AW-7, AW-8, AW-9 and A W-] 0. If all four we]Is will be used for monitoring, please update [he text and Maps 9 and 15-1 accordingly. The Division requested that BRL modify the discussion on leachate analysis. In the submittal dated August 30, 1999, BRL provided a gob leachate discharge analysis using a standazd mixing equation to obtain combined flow concentrations for iron and manganese in the North Fork of the Gunnison River. However, BRL did not provide this type of analysis for coal pile leachate discharge. Please provide an analysis, similar to the one for the gob pile leachate, for iron and manganese concentrations in the North Fork of the Gunnison River as a result of the proposed coal stockpile leachate. Also, please provide an assessment of the effects of combined coal stockpile leachate and gob pile leachate discharges on the North Fork of the Gunnison River. 9. Because pond B will be relocated so:dh of Old Hightivay 133, there will no longer be alluvial monitoring wells downgradient ojall of the disturbance. The present alluvial wells are all located north of the highway. Please propose locations for hvo alluvial wells downgradient ojthe disturbance on the west side of the mine site. The sites should be chosen with the intention of monitoring the potential effects to the ground water from the disturbance related to the relocated pond and from contamination beneath the relocated tmlined pond. The x~ell should be designed such that the perforated casing is installed from the base of the alluvium and should be extended across the entire thickness of the ul[uvial aquifer. Alluvial wells A6I'-1, AW-2 and AW-3 should be s:~fJicient to monitor any ground water effects from the coal stockpile pad. This response is discussed in item number 8 above. 10. There do not appear [o be designs for the berm that goes around the proposed coal stockpile pad area. If this is true, please provide these designs. In addition, please modify proposed revised blap l.i-1, `dine Facilities'; and Mnp 21-1, `Drainage Plans ", to show that the coal stockpile pad will have a berm and not a guardrail. Presently, the symbol used for a berm and for a guardrail are the same. The Division has no further concerns. In their submittal dated May 12, 1999, BRL modified Map l5-l and Map 21-1 appropriately, as well as added a design specification on page 8-29I in Exhibit 8 of Volume III for the berm. 11. Although the Dld Highway /33 culverts are part ojthe hydrology designs for the Bowie No. 2 Mine, they will or do lie underneath the state highway. Please provide a written acknowledgment from the Colorado Department of Transportation that the construction is with their permission and that the maintenance ojlhose highway culverts is the responsibility ojBowie Resources.