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I <br /> SAN JUAN/DOL(RES BASIN <br /> t` Basinwide Conditions Assessment: <br /> The SWSI value of-1.3 indicates that for September SAN JUAN/DOLORES RIVER BASINS <br /> the basin water supplies were below normal. Flow at the s surf..mote Supply Index NI"°'' <br /> gaging station Animas River near Durango averaged 298 cfs *- <br /> as compared to the long term average of 461 cfs. Storage in <br /> W 3 <br /> McPhee, Vallecito, and Lemon reservoirs totaled 80% of t <br /> normal as of the end of September. ;� ,�",� <br /> In September the basin received significant, higher "-� <br /> than average, precipitation. With temperatures also Q �.pi <br /> li <br /> -fr-- -",, � 7 II <br /> moderatin to seasonal normals some relief from the drou ht g g �was experienced. Durango received 13.0 inches of _ <br /> precipitation during the water year which exceeded some o -� i 1 ` v <br /> -i <br /> previous drought years. 3- <br /> Rivers ran well below normal. Strict administration -4 1 <br /> JAN97 JAN98 JAN99 JAN90 JAN91 JAN92 JAN93 JAN94 JAN9S JAN96 <br /> was required on Junction Creek until a futile call was A10NTWY6AR <br /> determined. The Animas River was regulated, although <br /> decreed water rights were satisfied as needed. La Plata River <br /> diversions were only available to the more senior priorities. <br /> The Little Blanco River reached a level so low that none of the <br /> ditches obtained benefit from its meager supply. The ANIMAS RIVER NR. DURANGO <br /> Montezuma Valley Irrigation District used its entire McPhee F`QW 6Y WATER YEAR <br /> supply and was curtailed. On both the Florida and Pine 0.9 <br /> Rivers diversion to hay fields was reduced due to hay cutting, 0.8 _ <br /> allowing storage to begin. i 0.7 <br /> Reservoirs were at very low levels. Lemon Reservoir <^ Q 6 <br /> dropped down to a total storage of less than 6,000 acre-feet. o o Q.S �� <br /> Vallecito Reservoir gained some storage to reach 27,900 acre- LL- <br /> iv p4 <br /> .._..... ..= /,____________________... .- <br /> feet at the end of the month,which was about 50%of normal. S <br /> 1 0.3 <br /> Outlook 0.2 <br /> Prospects look brighter as fall approaches because of <br /> changed weather during September which left the high 0 <br /> Oct Nov Dec Jan Feb Abrch April Iby JUne July Aup Sept <br /> mountain peaks covered with snow. Many river calls came off W:NTH <br /> 0 WET(1973) o DRY(1877) a AVG X 1996 <br /> because of the rainstorms and efforts by users to conserve. <br /> Public Use Impacts <br /> The rain damaged significant areas of cut hay. <br /> REPRESENTATIVE RESERVOIRS <br /> OOLOFES-ANIMAS RIVER BASINS <br /> 280 <br /> 260�� <br /> 240 <br /> 22Q200 <br /> _.////\\ <br /> i <br /> n180 <br /> 1 _v/./\\\\ <br /> I g 140 <br /> b2 120 <br /> • 100 <br /> i 00 <br /> /./7\ <br /> a o 7.\\\ <br /> 60 ilf <br /> 40 <br /> 20,.//7.\\:\ <br /> Mc levee Va l I ec I to Lemon <br /> ® Avp. 9/30 Content■ ® 9/30/96 Contents <br /> 9, <br />