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<br />,J <br /> <br />" withdrawals extend~rom about 19 miles north~t of Rangely (if <br />~olf Creek Dam is built) to the mouth of the White River near <br />Ouray, Utah. Investigators have captured 18 species of fish. Nine <br />are considered native, of which three are endangered: Colorado <br />squawfish, hampback chub, and bony tail chub; and one is a proposed <br />threatened species, the humpback sucker. <br />Assuming the maximum possible withdrawal, 6 c.f.s., from the <br />White River for the Deserado Mine and a slurry pipeline, the low- <br />est recorded river flow, 62 c.f.s., would be reduced by about 10%. <br />A flow of this magnitude has occured only once in 43 years. The <br />withdrawal of 6 c.f.s. would not likely jeopardize the continued <br />existence or adversely modify critical habitat of the. four en- <br />dangered and threatened species, because individuals of these <br />species use the river more for travel than for reproduction. The <br />6 c.f.s. withdrawal could have a detrimental impact on the river <br />ecosystem when considered in conjunction with a number of other <br />small withdrawals. <br />In order to withdraw 17,470 acre-feet of water from the White <br />River for use at the power plant, either the Rangely Reservoir or <br />the Utah White River Reservoir would be needed. The impacts of <br />these reservoirs on the aquatic ecosystem will be discussed in <br />separate EIS's. The EIS for the Utah reservoir will be completed <br />by the BLM in the spring of 1981. (One statement S8,Y;" "in 1980"). ., <br />No applications for the Rangely Reservoir have been made. Com- <br />pletion dates for its EIS or construction of the dam are not known. <br /> <br />.-' <br />~, I <br /> <br />0309 <br /> <br />IJ <br />lQ(., . <br />