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<br />,- <br /> <br />RIGHT-OF-WAY COC45805 <br /> <br />U. S. Department of the Interior <br />Bureau of Land Management <br />Craig District <br />Kremmling Resource Area <br /> <br />INTRODUCTION <br /> <br />This Amended Record of Decision documents the Bureau of Land <br />Management's (BLM) decision to amend the February 8, 1991, Record <br />of Decision for the Muddy Creek Reservoir right-of-way, now known <br />as Wolford Mountain Reservoir. This amendment increases reservoir <br />storage by an additional 6,000 acre-feet. <br /> <br />During construction of the Wolford Mountain Reservoir, the <br />Colorado River Water Conservation District (CRWCD) recalculated <br />the "probable maximum flood" for the Muddy Creek drainage, This <br />recalculation allowed the CRWCD to redesign the service and <br />emergency spillways, increasing the service spillway height by <br />four feet. The redesign resulted in a 6,000 acre-feet increase <br />in the reservoir storage capacity, from 60,000 acre-feet to <br />66,000 acre-feet, an increase in the reservoir maximum pool <br />elevation of 4 feet, from 7,485 to 7,489 feet, and an increase in <br />the water surface acreage of 100 acres, from 1,450 acres to 1,550 <br />acres. The CRWCD shall use the additional 6,000 acre-feet as a <br />"fish pool" from which to make releases for the benefit of <br />endangered fish species in the Colorado River. <br /> <br />DECISION <br /> <br />It is the decision of the Bureau of Land Management to authorize <br />the CRWCD to increase the storage capacity of the Wolford <br />Mountain Reservoir by an additional 6,000 acre-feet beyond what <br />was approved in the February 8, 1991, Muddy Creek Reservoir, <br />Environmental Impact Statement (EIS), Record of Decision (ROD). <br /> <br />MANAGEMENT CONSIDERATIONS <br /> <br />In the 1991 EIS/ROD, environmental impacts were identified and <br />analyzed, and mitigation was developed, based on a pool elevation <br />of 7,500 feet. By increasing the reservoir storage capacity an <br />additional 6,000 acre-feet, from 60,000 to 66,000 acre-feet, the <br />maximum pool elevation will be increased to the 7,489 foot <br />elevation. This increased reservoir pool is still well within <br />the area analyzed in the 1991 EIS/ROD. Therefore, increasing the <br />pool height will have no additional environmental impacts, within <br />the reservoir basin, beyond what was already identified in the <br />1991 EIS/ROD. <br /> <br />Page 2, <br /> <br />COC45805 <br />