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ARKANSAS BASIN <br /> Basinwide Conditions Assessment: i <br /> The SWSI value of 3.5 indicates that for July the basin ARKANSAS RIVER BASIN <br /> water supplies were well above normal. Storage in Turquoise, 5 Surface Water Supply Index History <br /> Twin Lakes,Pueblo, and John Martin reservoirs totaled 247% 4- <br /> of normal as of the end of July. Flow at the gaging station _ f <br /> Arkansas River near Portland averaged 4,555 cfs,as compared 3 ! = <br /> to the 1965-1993 July average of 1,664 cfs. 7 _ ---- - <br /> Free river conditions existed on the main stem of the * T <br /> ii.= :- '- :--- <br /> Arkansas below Twin Lakes Reservoir beginning July 7, and 1 o ^,}, .r.,14 V y <br /> for the other parts of the basin after east slope project storage - - U <br /> decrees at Twin Lakes and Turquoise Reservoirs were filled = 1 <br /> x -2- V <br /> the third week of July. The free river condition continued i <br /> until John Martin Reservoir completed evacuation of the flood _3 <br /> pool on August 3. -4 <br /> JAN96 JAN97 JANE9 JAN$9 JAN90 JAN91 JAN92 JAN93 JAN94 JAN95 <br /> Warm weather in the high country caused a ApNTWYEAR <br /> significant increase in runoff above Pueblo Reservoir the last <br /> three weeks of the month. Runoff abated somewhat after <br /> that, and the call on the main stem should remain relatively <br /> junior for the next several weeks. <br /> ARKANSAS RIVER NR. PORTLAND <br /> FLOW BY WATER YEAR <br /> Administrative/Management Concerns 1 <br /> All temporary storage accounts(If&When and Winter 5.5 _ . - <br /> Water in Pueblo Reservoir, and Article III water in John 0.9 <br /> Martin Reservoir) were spilled during July. The Southeastern I <br /> Colorado Water Conservancy District has approved an 0.6 <br /> additional allocation of project water for this year. #i <br /> As a result of flood control releases, there were some �- o.s <br /> 0 4 <br /> reports of damages to low-lying pasture and croplands below <br /> Pueblo and John Martin Reservoirs. Because of diminishing i °3 <br /> inflows,and due to a joint request from Colorado and Kansas, 0.2 r <br /> the Army Corps of Engineers allowed flood releases to be cut <br /> back from 3,000 cfs to 2,250 cfs the latter part of July to help 0 <br /> Oct Nov Gee Jan Feb Wareh April May June July Aug Soot <br /> alleviate flooding problems. i <br /> 13NTl, <br /> The Special Master in the Kansas vs. Colorado ° WET`1964 <br /> ' ` ORY <br /> `i97) ° AVG S 1995 <br /> litigation stopped short of ruling on an injunction filed by <br /> Kansas to restrain Arkansas Basin wells from further pumping <br /> until resolution of the case. However, he will continue to <br /> monitor Colorado's efforts at compliance with the Compact, REPRESENTATIVE RESERVOIRS <br /> with injunctive action remaining a possibility. 350 ARKANSAS RIVER BASIN <br /> ` <br /> 300- \\ <br /> Public Use Impacts <br /> The raftingindustry continued to be somewhat erratic : 250-tiY e <br /> during July due to periodic river closures because of high t n 200- <br /> \ <br /> flows. The outlook for the industry is improving as river flows • <br /> a: \ <br /> diminish. Augmentation of flows for raftinghas not been a g 15a- <br /> gm \ \ <br /> ' <br /> necessary. Reservoir boating conditionsremain excellent this <br /> year as most reservoirs are at their maximum levels. i le-0 A' '\ /\ <br /> SD-./7\ \\ <br /> John Martin Pueblo Turquoise Twin Lakes <br /> ® Avg. 7/31 Contonte ® 7/31/S5 COntente <br /> 4 <br />