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COLORADO BASIN March, 1999 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 0.0 indicates that for February the COLORADO RIVER BASIN <br /> basin water supplies were near normal. The Natural 5 Surface>�t.r s o Index History <br /> Resources Conservation Service reports that March 1 4_ <br /> snowpack is 89% of normal. Flow at the gaging station _ &t_ <br /> t <br /> Colorado River near Dotsero averaged 993 cfs,as compared to " 3 <br /> the long term average of 971 cfs. Storage in Green Mountain, 2- i : (� w r;.. l <br /> Ruedi, and Williams Fork reservoirs totaled 108% of normal 1- ;; = .� ` :4. <br /> ►� .-►. •,. <br /> as of the end of February. 1 ' -- <br /> Outlook 4111 /, <br /> None. o -2 I I c <br /> -3- <br /> Administrative/Management Concerns -• , �............................ <br /> JAN90 JAN91 JAN92 JAN93 JAN91 JAN95 JAN95 JAMS? JAH N JAN99 <br /> On February 23, 1999 the Colorado Water M ,,,,,E,," <br /> Conservation Board filed a motion to dismiss the "recovery <br /> flow water right"on the Colorado River in case no. 95CW296. <br /> The affected stream reach is commonly referred to as the <br /> "15-mile reach" which starts at the Grand Valley Irrigation <br /> Company diversion and ends at the confluence with the COLORADO RIVER NP. DOTSERO <br /> Gunnison River. The CWCB filed on behalf of the US Fish and S°° FLOW BY WATER YEAR <br /> Wildlife Service for flows in the Colorado and Yampa rivers for 450 <br /> . protection of endangered fish. CWCB's companion case, no. <br /> 4°° <br /> 95CW297, remains intact for a "base flow water right" in the 1 <br /> 15-mile reach,ranging from 680 cfs in September to 2,000 cfs n ° <br /> in May and June. -� 30° �� <br /> In addition, the US Bureau of Reclamation has µ.F 2s° <br /> approved an $8 million check dam project for the 55 mile 'it <br /> 200 <br /> long Government Highline Canal. Up to 32,000 acre-feet i <br /> annually may be conserved by improving the efficiency of the 150 <br /> canal operations during August, September, and October 100 <br /> without interfering with delivery of irrigation water. The 50 <br /> Oct Nov °sc Jan Feb March <br /> project is also intended to help recover endangered fish by „ ,I <br /> delivering surplus water in Green Mountain Reservoir to the �1994, a DRY(19 A x 1p99 <br /> Grand Valley Power Plant, then into the 15-mile reach, as <br /> authorized by the Orchard Mesa Check settlement case, <br /> 91CW247. <br /> REPRESENTATIVE RESERVOIRS <br /> Public Use Impacts COLORADO NI VAN BASIN <br /> 90 <br /> None. <br /> 70- <br /> ' i <br /> x <br /> SO <br /> Z'N . <br /> in SO <br /> y/.\ <br /> S 3 4° <br /> /\ <br /> h2 <br /> s 3° <br /> n <br /> • <br /> 3 20 <br /> lo <br /> O..n Mount.In Ra•dl Witness Fork <br /> ® Avg.2/29 Contents ® 2/29/99 Contents <br /> 7 <br /> a 1 <br />