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4• . <br /> ARKANSAS BASIN <br /> Basinwide Conditions Assessment: 1 <br /> The SWSI value of -0.2 indicates that the overall SURFACE WATER SUPPLY INDEX <br /> conditions are normal. Precipitation for the month was 163% 5 Arkansas 141 von_Elmo ln <br /> of average and 121% for the water year. Flow at the key 4 <br /> • <br /> index gaging station,Arkansas River near Portland, averaged t <br /> 800 cfs for the month as compared to the historic monthly 3_ : 'N., 1 1- <br /> flow of 1030 cfs.Releases from Twin Lakes Reservoir averaged �.. <br /> 369 cfs into the Arkansas River for the first twelve days of '- .-„ <br /> August. Cumulative flow for the water year at this station is D = k='� i t -" A, ,' '� , <br /> approximately 30% below average. Reservoir storage _ : 1• - <br /> measured on September 1, 1991, was 98% of average. Y _ <br /> Storage (usable) in the upper reaches of the basin in o - - <br /> Turquoise Reservoir and Twin Lakes Reservoir amounted to .3- <br /> 159,397 acre-feet. Pueblo Reservoir had 51,330 acre-feet -� <br /> JAlN2 40193 JAN14 JAMS JAMS JAN67 JANN JAN69 JANO JAN91 <br /> (usable) in storage on September 1. This years value is WNTWYEAR <br /> approximately 45% of average for the date. Soil moisture is <br /> good. - <br /> Outlook: <br /> The streamflow forecast is normal throughout the ARKANSAS RIVER NR. PORTLAND <br /> Arkansas basin. Reservoir releases for irrigation will remain i FLOW BY IMT6i YEAR <br /> high into the late summer to supplement low flows. The 5.5 <br /> Bureau of Reclamation's transfer of project water from the tl.. _.. <br /> upper basin reservoirs sufficient to maintain a 700 cfs flow in 1 , <br /> the Arkansas River above Pueblo Reservoir to enhance + <br /> recreational uses was halted on August 13,1991. Trout D s <br /> Unlimited obtained a court order to halt the releases d— <br /> suggesting that increased (and unnatural) flows would 'iV 94 _I' <br /> negatively impact the fishery. Of the 10,000 acre-feet to be 1 °.3 <br /> released, 5,731 acre-feet of water was actually released. <br /> D.1 <br /> Administrative/Management Concerns: D <br /> Oct Nov Doc Jan Fob ►4rch nor t Noy Juno July Aug Soot <br /> The Kansas vs. Colorado trial regarding the Arkansas MONTH <br /> 0 OCT C1100 + DRY(12773 0 AVG A 1991 <br /> River interstate water compact is in recess until February, <br /> 1992. Transmountain diversions within the Fryingpan- <br /> Arkansas Project totaled approximately 60,000 acre-feet for <br /> the water year. <br /> Arkansas Basin Reservoir Supplies <br /> Public Use Impacts: T20 <br /> Water based recreation at Pueblo Reservoir and on the 11D- ✓// \`\ <br /> Arkansas River above Pueblo Reservoir will be maintained. 100- <br /> John Martin Reservoir,however,was storingonly10,000 acre- .D- <br /> : r \ <br /> stabilize '°- <br /> feet of water on September 1, 1991 but will probably <br /> i n 70- <br /> . <br /> at 9000 acre-feet. It is currently storing at only 12% of <br /> normal. It is at the lowest level since 1982. Water based 152 / <br /> ciu S0 / • <br /> recreation remains high at Twin Lakes and Turquoise • ,� \ <br /> Reservoir. 3 30 <br /> ,0 ///N <br /> /"\ <br /> 0 <br /> John Mart f n Pueblo TlrquoIW Tw1n I.a1.0 <br /> ® Avg. 8,31 COntant. ® 1//91/90 Cant•nt• <br /> 4 <br />