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y- w <br /> GUNNISON BASIN <br /> Basinwide Conditions Assessment: I <br /> The SWSI value of+0.1 indicates that the basin water SURFACE WATER SUPPLY ►NDEX <br /> supply is near normal. Precipitation for the month was 83% 5 Gunnloon River Basin <br /> of average and is 109% of average for the water year. 4- <br /> Basinwide reservoir storage is 115% of average. Taylor Park - 3_ <br /> Reservoir contents (usable) measured 90,100 acre-feet on r 1 <br /> September 1, 1991. Blue Mesa Reservoir contents measured --- .- --� : --� i <br /> 760,763 acre-feet (usable). Flow at the key index gaging y 1 y =, T '-� AC <br /> station,Uncompahgre River near Ridgeway, averaged 132 cfs I Btp: o ilril T k <br /> for the month as compared to the historic monthly flow of 171 <br /> cfs.Supplies have been adequate in the Uncompahgre and San _ }., , <br /> Miguel River Basins. Demand for irrigation water diminishes a -B f - <br /> by the end of August. i: , <br /> — <br /> JAN62 JANB3 JLNB4 JAN65 JANII6 JAN617 JAHU JAN69 JAN90 JAM21 <br /> Outlook: LOITN/YEAR <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. Reservoir <br /> carry-over storage will be low in the Grand Mesa area. <br /> UNCOMPAHGRE RIVER NR. RIDGWAY <br /> FLOW BY WATER YEAR <br /> Administrative/Management Concerns: 200 — <br /> It is expected that there will be continued ;80 . <br /> administration needed between surface water rights and <br /> 160 <br /> reservoir storage rights on the south side of the Grand Mesa. , <br /> 150 <br /> Only the most senior direct flow rights on Surface Creek and 4 130 <br /> , 120 <br /> other tributaries off the Grand Mesa are being satisfied. .1 110 <br /> t. 100 - <br /> '2 90 <br /> Public Use Impacts: " <br /> Water-based recreation will be sustained at Blue Mesa BO <br /> 50 J <br /> Reservoir and in the Gunnison River below the reservoir. 30 _ _ <br /> Irrigation demand in the lower valleys continued to be high a <br /> through August. 0 <br /> Oct Npv Ow Jan Feb LyrCh ADr1I New June July AUG Sept <br /> LOCH <br /> 0 WET(1994) + DRY(1977) O AVG a 1291 <br /> Gunnison River Basin Reservoir Supplies <br /> 100 <br /> igo <br /> sa <br /> 70 7\\\\., <br /> _,/\ <br /> i <br /> , w <br /> ii 50 <br /> hi <br /> Mt: 44) <br /> i 30 <br /> 3 <br /> 20 <br /> 10 <br /> 0 A\ V////-\ .. . . . <br /> Taylor Pork Dr soford Fruitland <br /> ® Av.. 5/31 content• ® S/3V90 Contents <br /> 6 <br />