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• because the sediment pond requirements of Bule 4.05.2 were not in <br />effect, Hence, the sampling results represent a rorst case <br />situation. <br />Studies conducted by the D.S. Geological Survey in the entire <br />Yampa Hiver basin in 1975, before sediment pond installation, found <br />no measurable decrease in diversity due to coal mining in the Yampa <br />Hiver drainage basin (Wentz and Steele (1978)). Low diversity <br />indices were found to be "influenced by the very for atreamflors", <br />and not increased sediment loads from mined areas. <br />Canton <br />Creek from <br />• indication <br />community". <br />implemental <br />and Ward (1977) conducted an investigation of Trout <br />July 1975 through June 1976 and found no "definite <br />of stressed conditions in the macroinvertebrate <br />These studies rere also conducted prior to <br />ion of sedimentation control structures. <br />The utilization of sediment control devices at Energy Mine No. <br />3 has and rill continue to enhance the aquatic biology within the <br />proposed permit and adjacent areas_ Additionally, further damage to <br />aquatic biota in Fiah, Middle and Foidel Creeks rill be avoided <br />through the implementation of buffer zones. <br /> The CROW and the IISFWS rill be consulted during the proposed <br /> operations at Niae No. 3 to assure that the eapectationa of the fish <br />• sad wildlife plan are being realized. As necessary, modifications <br />2.05 - 125 <br />