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<br />nf"G~ <br />...1/;;' , ~ <br /> <br />to .intermittent flows into some of the offstream reservoirs that in a sense <br /> <br />are drawn off the top of the South Platte River. <br /> <br />Upstream farming practices <br /> <br />including kinds and amounts of fertilizers, herbicides, and insecticides <br /> <br />applied that may be carried into the river by return flows, will all influence <br /> <br />water quality. <br /> <br />Overall, it appears the eutrophication rate is actually un- <br /> <br />predictable. <br /> <br />IV-2l Vegetation <br /> <br />This section is descriptive but we would question the establishment of a true <br /> <br />littoral zone (IV-27) and aquatic plants in this fluctuating reservoir. <br /> <br />This <br /> <br />growth, however, should 'occur in Jackson Reservoir if the water lev,el is <br /> <br />stabilized. As stated, there will be both wildlife habitat losses and gains <br /> <br />that will tend to balance. <br /> <br />IV - 31 Wildlife <br /> <br />It would be extremely difficult to enumerate and evaluate ali the possible <br /> <br />changes to and impacts on wildlife habitat that may result from project con- <br /> <br />s truction. <br /> <br />Some losses will be fully mitigated, others will not, based on <br /> <br />the U. S; Fish and Wildlife Service's new evaluation method. <br /> <br />Changes in <br /> <br />epecies composition and use will definitely result. <br /> <br />V-l6 Endangered Species <br /> <br />Endangered species of raptors ma y pas s through and use the area. <br /> <br />There <br /> <br />is also the possibility that the black-footed ferret may still be present, as <br /> <br />past records indicate they once were and there are prairie dogs, a pre- <br /> <br />ferred prey, in the area. <br /> <br />We do not, under present project plans, envision <br /> <br />adverse impacts to endangered species, pending further investigation. <br /> <br />2 <br />