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• sharp-tailed grouse as well. Adverse impacts on these tvo game <br />species were minimal since no critical habitat was affected. <br />Consequently, no supplemental measures are necessary. <br />Waterfowl <br />Although no supplemental measures were required to mitigate the <br />negligible impact of the proposed mining operation on waterfowl, it <br />should be noted that the construction of sedimentation ponds has <br />served to enhance the waterfowl habitat in the proposed permit area <br />by providing a greater amount of needed resting water during periods <br />of heavy spring runoff (spring migration). <br />• Aquatic Biota <br />The primary impact of awning on the aquatic eommunities <br />encountered within and adjacent to the proposed permit area is an <br />increase in sediment deposition within sedimentation ponds. If <br />sediment deposits occur, habitat for aquatic flora and fauna may be <br />reduced. &educed diversities could possibly produce an unbalanced <br />and unstable aquatic macroinvertebrate community. Adverse impacts <br />on aquatic biota are highly unlikely, as demonstrated by the <br />sampling of the communities in 1975 and 1979, where no definite <br />changes in diversity from previous mining activity were documented. <br />The absence of an identifiable impact is especially significant <br />l J <br />2.05 - 124 <br />