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x <br /> ARKANSAS BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of 3.5 indicates that for May the ARKANSAS RIVER BASIN <br /> basin water supplies were well above normal. Flow at the S - <br /> Surface attar Supply Index Nlitary <br /> gaging station Arkansas River near Portland averaged 2,039 4- <br /> cfs, as compared to the long term average of 1,144 cfs. °; . <br /> m 3- <br /> Storage in Turquoise, Twin Lakes, Pueblo, and John Martin - \', -"- <br /> reservoirs totaled 199% of normal as of the end of May. z- =_ .. = =— <br /> The Arkansas River had a early peak of 4,700 cfs in ! 't <br /> the third week of May due to temperatures which exceeded 0 4 ,�. `v ,,'-, ' ' -',/, ( t <br /> ri <br /> 90° for several consecutive days. A subsequent cold front -,- . n X <br /> virtually stopped the runoff with native flows dropping back 2- ;; = - <br /> to 1,200 cfs. Flows in early June have risen back to more a = ` <br /> typical. levels. -3 <br /> Drought conditions exist in much of the Arkansas -4 , - .. ..., <br /> JAN97 JAN66 JAMBS JAN90 JAN91 JAN92 JAN93 JAN94 JAN9S JAN96 <br /> River Basin. The Governor has declared several eastern www. <br /> counties in the basin drought disaster areas. Three days of <br /> rain over the Memorial Day weekend helped, but dry <br /> conditions since that time have continued or worsened the <br /> current situation. Most streams south of Pueblo had little or • . <br /> no snow melt runoff this year,with some steams only having ARKANSAS RIVER NR. PORTLAND <br /> FLOW BY WATER YEAR <br /> enough water for the most senior water right. 1 <br /> 0.9 <br /> Outlook 0.B - <br /> Forecasts for the basin do not appear good without1 0.7 <br /> advent of large summer thunderstorms. <^ fl.6 <br /> a- (Ls - <br /> Administrative/Management Concerns LL <br /> iv a. <br /> Implementation of the details of administering well s <br /> use augmentation under the newly adopted rules continue to 1 6.3 = <br /> involve considerable management resources. Bi-monthly 0.2 -,-r• <br /> coordination meetings continue between well augmentation 0.,_ <br /> associations, Southeastern Colorado Water Conservancy 0 <br /> Oct Nov Dec Jan Fab March April May June July Aud Sept <br /> District, and the Division of Water Resources in an effort to MONTH <br /> 0 WET(1994) o DRY[1977) O AVG X 11196 <br /> iron out the administrative details necessary in implementing <br /> real time ground water depletion replacement. <br /> • <br /> Public Use Impacts <br /> The drop in flows in the Arkansas during late May REPRESENTATIVE RESERVOIRS <br /> slowed the rafting industry somewhat,but with flows back up 240 AW.ANSAS RIVER BASIN <br /> and school out for the summer the volume of rafters appears 220- <br /> to be back to it's normally high level. 20 <br /> 0- <br /> g <br /> y enjoy high water levels d 100- <br /> Reservoir boaters continue to � <br /> 160- <br /> on virtuallyall reservoirs in the basin. Currently,inflows have n <br /> � 140- <br /> releases which has allowed most reservoirs _ <br /> been able to match <br /> e to decrease duringh g 120 <br /> to remain full. Storage levels will begin 10O_ <br /> Jul <br /> 3 60- 7 <br /> 40 y <br /> 20- <br /> 0 /\ /\ /\\ <br /> John Martin Ruablo Tur9u0160 Twin Lakes <br /> ® AVq. 5/31 Centant* ® S/3V96 Content. <br /> 4 <br />