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GUNNISON BASIN <br /> Basinwide Conditions Assessment: ' <br /> The SWSI value of+0.8 indicates that the basin water SURFACE WATER SUPPLY INDEX <br /> iconBasin <br /> supply is near normal. Precipitation for the month was 126% s °""" R'"" <br /> of average and is 111% of average for the water year. 4_ <br /> Basinwide reservoir storage is 118% of average. Taylor Park ry <br /> Reservoir contents (usable) measured 99,200 acre-feet on 3 �. <br /> August 1 1991. Blue Mesa Reservoir contents measured 2- - 11 - Z2 <br /> 808,000 acre-feet (usable). Flow at the key index gagingf. <br /> ,- w <br /> station, Uncompahgre River near Ridgway, averaged 268 cfs i n r'`` '� '" 1-,;,,, _ � "'� <br /> • <br /> for the month as compared to the historic monthlyflow of 366 �� fir <br /> P <br /> cfs. Reservoirs on the Grand Mesa (District 40) only filled to - 2_ - t- <br /> 70% of capacity by the beginning of the irrigation season. 1 ; <br /> This area has shown the least recovery from the drought of 3- <br /> the prior three years. Supplies have been adequate in the -4 <br /> JANS2 JAN63 JAN94 JAN05 JAN66 JAN67 JANSO JAN89 JAN90 JAN91 <br /> Uncompahgre and San Miguel River basins. YONTWYEAR <br /> Outlook: <br /> The water supply for the basin has been reasonably <br /> good. Irrigation supplies will be below average for the Grand <br /> Mesa area and average for the rest of the basin. Irrigation UNCOMPAHGRE RIVER NR. R I DGWAY <br /> demand is off in the mountain areas. 1O0 FLOW BY WATER YEAR <br /> 190 r <br /> 190 <br /> 170 <br /> Administrative/Management Concerns: 160 <br /> It is expected that there will be continued 1 „o - . <br /> administration needed between surface water rights and 4 130 120 �- <br /> reservoir storage rights on the south side of the Grand Mesa. 3 1 1,q <br /> Only the most senior direct flow rights on Surface Creek and L.,,.! 190 <br />• other tributaries off the Grand Mesa are being satisfied. The s v o0 <br /> Uncompahgre River went on "call" August 2, 1991. d ao <br /> So r <br /> 40 <br /> 30 <br /> Public Use Impacts: 10 \: <br /> Water-based recreation will be sustained at Blue Mesa 0 <br /> Oct Nov nac Jan Feb M rc" April may Jun. July Aug Soot <br /> Reservoir and in the Gunnison River below the reservoir. MONTH <br /> 0 WET C1994J + ORY C19773 O AVG A 1991 <br /> Gunnison River Basin Reservoir Supplies <br /> 100 - <br /> 90 <br /> so <br /> 70 <br /> '' 6O <br /> as 50 <br /> *I'' <br /> v 40 <br /> /N\ <br /> i 30 <br /> ..\\20 <br /> 10 1/\\ ////\\\\ f 11//l._. <br /> Taylor Fork Crawford Fruitland <br /> ® Avg. 7/31 Cpnt.nt■ ® 7/31/90 cont... <br /> 6 <br />