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<br />~ <br /> <br />~ <br />~ <br />I <br /> <br /> <br />~ <br /> <br />, <br /> <br />12 <br /> <br />. <br /> <br />. <br /> <br />An adverse impact to endangered fish in the \~ite River would occur. <br /> <br />The presence in the White River of some adult endangered fish has been <br /> <br />confirmed. No young have been noted. Creation of a resp~"^~r .- <br /> <br />Bonanza at Taylor Draw, or at Wolf Creek would adversely affect the <br /> <br />environment for endangered fish in the White River. However, this <br /> <br />river has not been classified as critical habitat for these fish. <br /> <br />The reservoirs would produce a more favorable environment for sport <br /> <br />fisheries. A reservoir would definitely reduce sediment load down- <br /> <br />stream and minimum flows would probably be greater. <br /> <br />The change in pH and temperature downstream from the reservoirs and <br /> <br />in the Green River is hard to predict with the very limited time and <br /> <br />data available. An estimate could be made utilizing primarily data <br /> <br />from other reservoirs. However, it seems improbable that either pH <br /> <br />or temperature would be critical factors. It is unlikely that pH <br /> <br />would drop below 7.0 and would undoubtedly be less than 8.5. With <br /> <br />selective withdrawal from the reservoir, both pH and temperature could <br /> <br />be adjusted downstream to fit any reasonable desired condition, allowing <br /> <br />flexibility to adjust to observed conditions. <br /> <br />Thus it is recommended that the reservoir outlet works be constructed to <br /> <br />permit selective withdrawal and thereby facilitate management of temp- <br /> <br />erature and pH downstream, eliminating these factors as points of concern <br /> <br />with construction of reservoirs on the \~ite River. <br /> <br />-o~o <br /> <br />,J <br />~' <br />~~ <br />I' <br />