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i~1r. Patrick Warren -3- January l0, 1984 <br />Similarly, File IVo. 83-161 contains inconsistent information as to whether the <br />operation will be a dr.y pit or not. <br />River Operations <br />Our File Pit <br />83-149 Lee <br />83-151 Collins <br />83-152 Raish No. Z <br />83-161 Hollenbeck <br />83-163 Raish No. 1 <br />1. Maps should be provided/revised per the com;nents yiven in numoers 3 <br />and 4 above. <br />2. The staff reco~ninends delineation of the permit ooundary per number 2 <br />above. <br />3. We recommend twat you contact the U.S. Army Corps of Engineers for <br />the possible need of a section 4U4 dredge and fill permit. <br />4. Because streams respond in a number of different ways, both <br />biologically and physically when mined, we are concerned that such plans will <br />not ultimately induce adverse affects on adjacent lands or the riparian <br />community. The operator must, therefore, demonstrate that the operation will <br />meet the requirements of Rule 6.2(a) by minimizing the disturbances to the <br />prevailing hydrologic balance. At this point in time the staff does not feel <br />that the potential impacts on the stream have been adequately addressed in the <br />application, and we would not presently be in a position to make a favorable <br />recommendation to the Mined Land Reclamation Board without some further <br />information. We would recommend that any responses pertaining to disturbances <br />to the stream be addressed by a competent surface water hydrologist or other <br />qualified professional. <br />Considering the comments above, the applications should detail as well as <br />possible the nature and extent of the mining plan and, in particular, how the <br />proposed operation will comply with Rule 6.2(a). Such information would <br />include, but not be limited to, a discussion of the affects of the mining <br />operation on adjacent lands as the stream and its channel respond through <br />possible headward erosion of the channel and through possible downstream <br />scouring; measures which will be taken to minimize sedimentation of Che <br />waters; depth(s) to be mined; possible lateral changes in the channel which <br />may occur as a result of mining; affects on aquatic oryanisms as Habitat is <br />disrupted and turbidity increased; possible affects on nearby structures which <br />may have their components in or near the channel (eg. bridge abutments, <br />diversion gates, utility transmission towers, etc.). <br />Also, the Division of Wildlife has expressed concerns (addressed in their <br />impact assessments) regarding possible impacts on fisheries, waterfowl nesting <br />areas, and has identified winter habitats for the bald eagle. Obviously, such <br />concerns must be addressed in your plans. <br />