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GUNNISON BASIN ` <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-0.2 indicates that the basin water SURFACE WATER SUPPLY INDEX <br /> supply is near normal. Snowpack measured 73% of average 5 Gunn son Rlrrr Beeln <br /> on February 1, 1991. This is 54% above last year. ,- <br /> Precipitation for the month of January was 107% of average. . <br /> iy ; <br /> 3- <br /> Basinwide reservoir storage is 140% of average, as measured 1 ` <br /> on February 1, 1991. Blue Mesa Reservoir contents measured . <br /> 638,500 acre-feet on February 1, 1991. Taylor Park Reservoir 1 1- , - . <br /> contents measured 75,200 acre-feet. Overall, streamflow was i: <br /> 9 0 ! --1—1-- <br /> --- <br /> near normal for the month throughout the basin. Flow at the - ;,; 'f. - <br /> key gaging station, Uncompaghre River near Ridgway, <br /> averaged 47 cfs for the month matching the historic monthly o <br /> flow. .3- <br /> -4 , f...._.-......_............._.................................................................. <br /> JAN61 JAN32 JAN93 JA1 4 JANOS JAJ65 JANB7 JANBB JAN99 JAN90 JAN91 <br /> Outlook: AOtRW YEAR <br /> Much of the snowmelt in the basin can be expected to <br /> percolate into the ground to restore soil moisture and ground <br /> water. The past three years of drought have seriously <br /> depleted ground water in storage as observed by diminished <br /> flow of springs. The streamflow forecast is lowest in Muddy Gunnison River Basin Reservoir Supplies <br /> Creek above Paonia Reservoir at 60% of average and highest 'Co <br /> in the Uncompahgre River drainage above Ridgway Reservoir _ ////// <br /> 600 // <br /> at 86% of average. <br /> ! '- <br /> Administrative/Management Concerns: <br /> n y <br /> Reservoirs are utilizing sensor storage rights with the "°° <br /> exception of municipal water decrees which are primarily ts g 3� <br /> junior. Normal operating power generation releases from the a�' <br /> Aspinal Unit (Blue Mesa, Morrow Point and Crystal s 200 <br /> Reservoirs) is planned. <br /> Public Use Impacts: <br /> A- ///1 <br /> BLUE MESA 1/31 AVG BLUE AESA 1/31/91 <br /> Water-based recreation has been sustained at Blue <br /> Mesa Reservoir and in the Gunnison River below the reservoir. <br /> Gunnison River Basin Reservoir Supplies <br /> 130 <br /> 70- <br /> r 60 fj <br /> �n 50 <br /> ■n /\ <br /> a. 40 <br /> hF <br /> NV <br /> . <br /> 7\7\ <br /> s <br /> 1 20 <br /> *,\• <br /> 10 /\ f� <br /> Taylor perk CraVfdrd Fruit land <br /> ® Avg. 1/31 Contonts ® 1/31/91 Cantonte <br /> 6 <br />