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ARKANSAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 0.8 indicates that for July the basin ARKANSAS RIVER SAS I N <br /> water supplies were near normal. Flow at the gaging station S�f"a Water SupplyIndexH"tory <br /> S <br /> Arkansas River near Portland averaged 1,236 cfs,as compared 4- <br /> to the long term average of 1,664 cfs. Storage in Turquoise, °: 71 <br /> Twin Lakes,Pueblo, and John Martin reservoirs totaled 188% 3 T <br /> of normal as of the end of July. 2- -- .7 . <br /> • <br /> 1 11, :f .— <br /> Outlook - ti r� <br /> Dry conditions continue to exist on many tributaries r, <br /> with only the most senior water rights being able to divert. <br /> �_ <br /> On the mainstem of the lower Arkansas native flows are now <br /> being augmented by reservoir storage supplies. Current 3- <br /> releases from storage are 1,700 acre-feet per day from Pueblo 1-- - • <br /> JANB7 JANBB JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 JAN96 <br /> Reservoir, and approximately 1,000 acre-feet per day from MONTH/YEAR <br /> John Martin Reservoir. <br /> Administrative/Management Concerns <br /> The administrative process of augmenting ground <br /> water usage is proceeding. Meetings continue to be held in ARKANSAS RIVER NR. PORTLAND <br /> order to coordinate the proper release and crediting of FLOW BY WATER YEAR <br /> augmentation supplies. Augmentation sources generally o 9 • <br /> consist of transmountain first use,transmountain return flows, o <br /> and consumptive use from the drying up formerly irrigated o, <br /> lands. Approximately 1,900 non-exempt wells are being 0 6 <br /> augmented at this time. These wells pumped 7,800 acre-feet <br /> 0.5 <br /> during June. u- <br /> Public Use Impacts ! 03 <br /> The upper Arkansas River currently has native flows 0 2 <br /> ranging from 400 to 500 cfs. These amounts are being B 1 <br /> augmented to maintain a flow level of 700 cfs through the <br /> Oct Nov Dec Jen Feb March April May June July Aug Sept <br /> middle of August in order to produce more ideal levels for the M❑NTH <br /> ❑ wET C1904) o DRY C1977) 4 AVG X 1996 <br /> rafting industry. Fryingpan-Arkansas Project waters are being <br /> used for the augmentation by release from Twin Lakes <br /> Reservoir and restorage in Pueblo Reservoir. Following <br /> August 15 the flows will be allowed to recede to natural levels <br /> so as to not harm the river's fishery environment. REPRESENTATIVE RESERVOIRS <br /> ARKANSAS RIVER BASIN <br /> 240 <br /> 220- <br /> 0-19 <br /> 780- <br /> e <br /> M <br /> 140- <br /> `v n 140- <br /> n. <br /> 100 <br /> N v <br /> 40 <br /> 20-� <br /> John Mart In Pueblo Turquoise Twin Lakes <br /> 771 Avg 7/31 Contents ® 7/31/96 Contents <br /> 4 <br />