DWR_4151807 - Laserfiche WebLink

r SAN JUAN/DOLORES BASIN R Basinwide Conditions Assessment: The SWSI value of -1.0 indicates that the current SURFACE WATER SUPPLY INDEX :onditions are below normal. However, this is a significant 5 Sae JNSNDfIG'ss/Ml Alves easlrs improvement from the previous month's value of -2.7. ,- Precipitation for the month of July was 154% of normal with 3.45 inches of rain recorded at Durango. Reservoir - w; storage on reservoirs on the Pine River, Florida River and J ; = •=M, �-- Mancos River is above last year's storage. McPhee Reservoir — r storage, however, is 67,650 acre-feet below that of one year 1 ° 1� T"' ago. Base flows in most streams are only 50% of normal. _ _ r . Flow at the Animas River near Durango was approximatelytc' 1_ 300 cfs on August 1, 1990, which was only 44% of the ten- -2 ' year average for that date. Cumulative flow at this key -3- .� gaging station is approximately 45% of normal for the water ..--......- JNII4 JAN/Z JAl113 JANsi .VJAS .LINK JANs7 JAN JAli ss JAWS. 0 .Ail, year and is only about 20% above the minimum flow WNW„M„ recorded in 1977. Outlook: Less carry-over storage in McPhee Reservoir is likely to have an impact in 1991 on irrigation releases and releases to the Dolores River for need to sustain trout ANIMAS RIVER NR. DURANGO fishery. FL°.BY WATER WAR 0.9 Administrative/Management Concerns: 0.1 Although there appears to be temporary relief from I 0.7 the drought,water supplies will remain short throughout the ° year. °.s LL� Public Use Impacts: 0.4 Impacts on recreational uses of water are likely to °'' develop throughout the basin in 1991 if normal to below 0•2 normal snowpack develops this winter. ° art Nor Dee J•n P.O wcn epl'II lay Jun! July Alb; Sept II,X111•I O IL1X(1973) • IIIN(1177) o AVG • 1990 Do I ores-An imas Basin Reservoir Supplies 2/0 220 2°° ,� 114 j 1.0.....7/\\\ i 1e° It11A 14°_,//\ _.//", vu Weise V.I Melte Leegn ® Avg.7/31 Contents ® 7/31/00 Contents 9