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GUNNISON BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -1.9 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions place the basin is in a moderate drought stage. S Gianni tln Myer&mum <br /> Drought conditions exist in the southern section of the Grand <br /> Mesa and in the upper reaches of the Uncompaghre drainage. - _ 1,,a- <br /> Water District 40 reports that reservoir storage is only 14% _ r J Al- `• <br /> of capacity as compared to the seasonal historic level of 40%. 2-. r; fi! ;C ..:: • a. : 1 <br /> Although Blue Mesa Reservoir is storing approximately 100% ! '^ .E ;__.., :~ .-= <br /> of normal, reservoir storage throughout the rest of the basin �, -_ — ' p'' <br /> has been significantly diminished. The groundwater table _ w E a v <br /> has been lowered resulting in diminished flow of natural a -1, `� ^ <br /> springs. Cumulative flow at the key gaging station, v I-:-, .. <br /> Uncompaghre River near Ridgway, was approximately 35% <br /> below normal for the water year but above the minimum .. ... r--- - <br /> .JNw Hn JJb012 J. Jon114 JA11.S .LW. YJ <br /> . JAMI7 -wig JANOS J. eD JA«9'1 <br /> flow recorded in 1977. Flow at this station was 1.,,,,,,�„ <br /> approximately 40% below normal for the month of <br /> September. Precipitation for the month was 162%of normal. <br /> Soil moisture conditions improved significantly in <br /> September. <br /> UNCOMPAHGRE RIVER NR. RIDGWAY <br /> Outlook: 200 - FLOW Of MATCi TEAM <br /> Available water supplies will remain short throughout "D <br /> most of the basin. Irrigation water demand has dropped <br /> significantly. ; <br /> i ,40 <br /> 4 e3, . <br /> -10 <br /> Adrninistratrve/Management Concerns: .1 lag <br /> Senior water rights have sporadically dried up the dG <br /> Uncompaghre River above Ridgway Reservoir. Streamflow 93 ,,,,/,<--: <br /> _ <br /> records reveal that the last time the Uncompaghre River 1 '30 adidn't flow continuously was in the severe drought of 1977. <br /> Water District 40 (southside of the Grand Mesa) continues to 20 a <br /> 10 <br /> be under extremely tight administration. 0 . - <br /> ft, Nav DIC .411 Fap MrCl •arll r4y •Ass JYIy Aug Ssos <br /> %CN(N <br /> Public Use Impacts: ° mai ow) ' L0"`""' ° A"' a 190 <br /> Water-based recreation has been sustained at Blue <br /> Mesa Reservoir and in the Gunnison River below the <br /> reservoir. <br /> Gunnison River Basin Reservoir Supplies Gunnison River Basin Reservoir Supplies <br /> 700 03 <br /> ADD r <br /> 70-, .,1 <br /> SOO 1.h 9D <br /> 2 400- i SO <br /> Hs" <br /> nv 300 Sa 40././/\, <br /> I �°° i 3°/\\ <br /> t00- ,/\ <br /> i0 <br /> �i1� o 1////ram, __� <br /> a flu.m.a. TaylG 7.r ll Pero 1.ra Fruit <br /> ® mg- 9►70 Content. ® 1/31/e0 clne«w ® Aug.4/30 C711e.nee ® 6,2►9Q Consents <br /> 6 <br />