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SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 0.0 indicates that for November the SOUTH PLATTE RIVER BASIN <br /> Surface Muter Supply Index Nlstory <br /> basin water supplies were normal. Reservoir storage, the key S , <br /> component in this basin in computing the SWSI value, was 4 <br /> 103%of normal on November 30. Storage in the major plains . <br /> reservoirs;Julesburg,North Sterling,and Prewitt,increased by 3 ni ri.11. `23,900 acre-feet during November and are at 47%of capacity. gi.. ' ; ;:4!: <br /> Storage in the major upper basin reservoirs,Cheesman,Eleven 1Mile, Spinney, and Antero, decreased by 1,636 acre-feet and i ° 7"'�' - ` L""e—, <br /> are at 83% of capacity. The Natural Resources Conservation ',.,- <br /> Service reports December 1 snowpack as 80%of normal. The <br /> mean daily flow of the South Platte River at the Kersey gage o <br /> was 662 cfs,as compared to the 1961-1993 November average -3 <br /> of 894 cfs. Flow at the Colorado/Nebraska state line averaged -• <br /> JAMBS JANOS JAN87 JANBB JANN JAN2O JAN91 JAN82 JAN93 JAN94 <br /> 85 cfs. WHIM,YEAR <br /> The month of November saw very little precipitation <br /> throughout the basin. The mountain snowpack has not begun ` <br /> to accumulate as hoped, with may areas still lacking in any <br /> snow. Temperatures in November seemed unseasonablywarm <br /> and may farm fields continued to be worked as the month SOUTH PLATTE RIVER NR. KERSEY <br /> ended. Flow conditions were less than normal in the tributary FLOW err MATHi YEAR <br /> basins, but somewhat better on the South Platte main stem. 400 <br /> Barr Lake's 1885 storage call was on the entire month of <br /> 350 <br /> November. Flows below the Burlington Ditch were going to i <br /> storage. 300 .p--------a(//b <br /> zs° <br /> Administrative/Management Concerns �o- <br /> g no <br /> Storage of water in the irrigation reservoirs began in s 150 <br /> earnest in November. Because flow in the tributaries was less <br /> than normal,the amount of storage in tributary reservoirs was '00 <br /> limited. Better stream flow existed on the South Platte main 50 <br /> stem and about 75,000 acre-feet was stored in reservoirs using 0. . °ec Jae Feb birch <br /> that source. The main stem irrigation reservoirs are currently ,0,„,1 <br /> about 42%full, and the municipal reservoirs whose source is E`` OW`1994) x "°` <br /> the South Platte are currently about 83%full. It is estimated <br /> that it will take 80 to 100 more days to complete <br /> filling the main stem irrigation reservoirs while most <br /> municipal reservoirs are currently being lowered to satisfy REPRESENTATIVE RESERVOIRS <br /> municipal demand. 240 South Platte Bain <br /> Releases from mountain reservoirs were being made 220 <br /> 2 <br /> to the Cache la Poudre River under the Joint Operations Plan f <br /> between the U.S. Forest service and water users. Dry stream = 180, <br /> conditions and freezing conditions made it necessary to , <br /> increase releases in order to meet demands by Greeley and Ft. '- "° 7/�\ <br /> 3 120 J1 \\ <br /> Collins. h g 100 <br /> Monthly meetings continue to be held by the parties a <br /> 93 <br /> 77 <br /> trying to resolve the issues surrounding endangered species in I <br /> the Platte River Basin. The federal government and the three ,°/ / 77 <br /> states are trying to craft a habitat conservation plan that will 20-,� <br /> provide a reasonable and prudent alternative to jeopardy 0 ?�' ` <br /> °I I Ion I8raotooth Eleven Mlle ClYwawn Jackson Burr Lake <br /> opinions involved with projects having impacts on the subject <br /> ® Arp. 91/90 Content• ® tur30/114 Contents <br /> species. Meetings are open to comment by other persons, <br /> including water users and environmental groups. <br /> 3 <br />