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ARKANSAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 1.9 indicates that for April the ARKANSAS RIVER BASIN <br /> basin water supplies were above normal. The Natural 5 Surlsw Water Supply Index Nlatory <br /> Resources Conservation Service reports May 1 snowpack as 4- <br /> 106% of normal. Flow at the gaging station Arkansas River _ •' <br /> near Portland averaged 522 cfs, as compared to the long term .. - <br /> average of 436 cfs. Storage in Turquoise,Twin Lakes,Pueblo, 2- ►T <br /> and John Martin reservoirs totaled 212% of normal as of the <br /> end of April. <br /> -1 j �. <br /> Outlook <br /> -2- <br /> The snow survey is reporting 140% of average water o ` - <br /> equivalent levels in the headwaters of the main stem of the -3- <br /> Arkansas. However, Snotell readings in the southern -4 - <br /> JAN97 J N9 AN69 JAN89 JA0 JAN91 JAN92 JAN93 JAN94 JAN9S JANOS <br /> tributaries of the Huerfano, Cucharas, and Purgatoire Rivers NONTIV fEAR <br /> are at or near zero percent of their averages. <br /> Native flows are beginning to rise on the main stem <br /> at the beginning of May by a rate of 150 cfs per day. The <br /> current river call is a March 1, 1887 priority date. <br /> ARKANSAS RIVER NR. PORTLAND <br /> Administrative/Management Concerns FLOW°" .ATE �"'° <br /> 360 <br /> Evaluation and approval of plans to provide 340 <br /> 320 <br /> replacement water for well pumping continue to be a 3a° <br /> management concern. Administration of the plans and 1 260 <br /> enforcement of the 1996 well use rules and will involve g 240 <br /> complex measuring and accounting,and timely actions on the o gE 2 <br /> 262130 <br /> part of both the well owners and the Division of Water g <br /> ieo <br /> y v 16° <br /> Resources staff. IS 140 <br /> 120 <br /> Public Use Impacts s° <br /> Municipalities have been selling excess water at o <br /> relatively low prices to irrigators in attempts to create more 20 <br /> Oct Nov Dec Jan Feb hlareh A01-11 May <br /> available reservoir storage space prior to runoff. This has NOHSN <br /> produced river flows which have been up to three times the "Er`'9w`' °""" AVG x "°' <br /> native flow, and have elicited several complaints from fishing <br /> interests that interference is occurring to the caddis fly hatch <br /> and the ability of fishermen to be in the river. <br /> REPERSENTATIVE RESERVOIRS <br /> ARKANSAS RIVER BASIN <br /> 260 <br /> 240- <br /> 220 J <br /> 200- <br /> i 160-ri <br /> \ \ <br /> 1130- \ \ <br /> . 14°- <br /> h2 120- \ /\ <br /> 2 so- <br /> 80 <br /> . \ <br /> ° \�\ \�\ //\ \/\ <br /> John Mlrtln Pueblo Turquoise Twin takes <br /> ® Avg. 4/30 Contents ® 4/30/96 Contents <br /> 4 <br />