Laserfiche WebLink
SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of+3.3 indicates that for September the SOUTH PLATTE RIVER BASIN <br /> basin water supplies were above normal. Reservoir storage, the 5Ur,ea Water 5,P„ly I00.-Hietary <br /> s <br /> key component in this basin in computing the SWSI value, was 4_ <br /> 113% of normal on September 30. Storage in the major plains ' <br /> 3 r' 1 . <br /> reservoirs, Julesburg, North Sterling, and Prewitt, decreased by 4 <br /> 13,046 acre-feet during September and are at 20% of capacity. 2 ; <br /> Storage in the major upper basin reservoirs, Cheesman, Eleven '- <br /> Mile, Spinney, and Antero, increased by 1,652 acre-feet and are I D <br /> jr--!:FiLt -- <br /> at 94% of capacity. The mean dailyflow at the Kersey gage on _ L <br /> the South Platte River was 805 cfs, as compared to the 1961-1991 <br /> a 2_ <br /> September average of 732 cfs. The National Weather Service <br /> reports September precipitation as 145% of normal. <br /> JAN84 JAN85 JANOR JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 <br /> Outlook MONTH/YEAR <br /> Due to an early September frost that impacted most of the <br /> agricultural areas within the South Platte drainage, water demands <br /> were down and a free river was declared below the Denver metro <br /> area. Water supplies for uses are adequate at this time. <br /> SOUTH PLATTE RIVER NR. KERSEY <br /> FLOW BY WATER YEAR <br /> Administrative/Management Concerns 2.9 <br /> The past month has allowed recharge activities to run at 2. <br /> 2.4 <br /> full rate below Denver. Because of repairs that needed to be made ,2 <br /> on dams in Districts 1 and 64,little water was stored in that area, L 2 <br /> and what wasn't diverted for recharge and irrigation flowed out of • <br /> the state. As repairs are made, storage will again divert the Al 14 <br /> available waters in the river. Starting in mid September and into <br /> the first week in October, water from the metro sewer was being s <br /> pumped into the Burlington canal to satisfy Barr Lake storage <br /> rights and to reduce the flows in the Platte below the sewer °6 <br /> .4 <br /> outfall. Water quality tests were being run to determine the 0 2 <br /> resulting quality in the stream and in the canal. In the future <br /> Oct Nov Dec Jan Feb Mvch April Shy June July Aug Sept <br /> similar operations may occur if water quality impacts are MONTH <br /> WET(1983) 0 DRY(1914) L AVG X 1193 <br /> acceptable. <br /> Public Use Impacts <br /> Water flows in the fall have been relatively low this year <br /> due to the limited and spotty rainfall experienced in the basin this REPRESENTATIVE RESERVOIRS <br /> summer. Without the releases of reservoir water in the Platte 2,0 SOUTH PUTTS RIVER BASIN <br /> above Denver and in some of the tributaries above from range 220 <br /> f <br /> cities, the rivers would have been very low and definitely would �� <br /> have impacted fisheries. Reservoirs were generally at normal i <br /> Et <br /> levels this summer and afforded flat water recreationalists with % 1fi0 / \� <br /> = 140_.. \` <br /> good conditions for their activities. 120 /�\\\` <br /> gg 100 / \ 77, <br /> so <br /> ,D <br /> fi <br /> Dillon HorN=oOIR Eleven Milo Chessman Jackson Barr Lek, <br /> ® Avp. 9/30 C0.ltente ® 2/39/93 Content. <br /> 3 <br />