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Fork of the Gunnison is presented on proposed revised pages Z.O.i-7~ and 2.O.i-7.i. Please add a discussion of the impacts to users of the water after it leaves the Bowie No. 2 tLline site but before it reaches the North Fork of the Gunnison. The operator revised page 2.05-73 and 2.0~-7d in the submittal dated October 4, 1999, adding a discussion of downstream impacts. These revised pages brought up several more questions. 9a. On proposed revised pages 2.0d-37 and 2.0~-73, it is stated that any significant mine water discharge would need to be [rnnsported over the Deer Trail Ditch and Fire tLlo:mtain Canal in order to avoid water quality degradntion. No structures are in place right now to protect the water in the Deer Trail Ditch and Fire Mountain Canal from significant mine water discharge. Rule 2.O~. ti(3)(a)(I) requires that protection of surface and ground water tivithin the permit area and the adjacent area be ensured. Please revise the permit to stare that Botivie will build such structures. In addition, "significant "is not defrned. Whnt monitoring method will Bowie Resources employ to determine when the mine water discharge is significant and needs to be transported over the Deer Trail Ditch and the Fire Mountain Canal ? In the submittal dated October 4, 1999, BRL proposes to transport mine water dischazge through a pipeline from the portals to "D" Gulch which drains to the river. According to BRL, runoff from "D" Gulch would not flow into the Deer Trail Ditch or the Fire Mountain Canal since the Deer Trail Ditch is contained in a pipe in that section and there is an "undershot" in the Fire Mountain Canal at that point. However, BRL proposes to withhold construction of the pipeline for now since significant mine water has not been encountered in the development mining to date. BRL proposes to commit to the construction of this pipeline within 9 months of the acquisition of the Iron Point Tract. The Division agrees that this issue can be dealt with at a later time, provided that there will not be significant mine water dischazge into pond C in the interim period. Also, the Division concurs that this issue can be resolved in the manner BRL proposes, provided that it can be verified in the field by the Division that "D" Gulch runoff does not enter the Deer Trail Ditch and the Fire Mountain Canafi As BRL stated, the NPDES permit would have to be amended to allow for this discharge point. Finally, at the time of revision, the Division requests that a more detailed discussion of the impact of mine water dischazge into "D" Gulch and along the flow path to the North Fork of the Gunnison River be provided. 96. Please provide a discussion in the permit as to the exact method that will be used far bringing the mine tivuter discharge down the hill within the permit area.