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RIO GRANDE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +2.8 indicates that the current SURFACE WATER SUPPLY i NDEX <br /> conditions are above normal. This represents a significant s °`•ammo,..111 <br /> improvement from conditions on - October 1, 1990. ,_ I <br /> Streamfiow is the key component in computing the SWSI ,. , <br /> value for this basin. Precipitation measured 150%of normal 3... I , .I.1 '_ ,r • <br /> for the month of October. Streamflow conditions on the Rio '- : E '�` <br /> I <br /> Grande and its tributaries in the San Luis Valley were above +, ,,; . --- -- <br /> Al C <br /> normal in October. Flow at the key gaging station, Rio i ° i i ��� <br /> Grande near Del Norte, averaged 695 cfs for the month of _ _ A <br /> II,October as compared to the historic monthly average of 419 V ty • <br /> cfs. Usable storage water in Rio Grande Reservoir has been o• ''- <br /> totally diminished. Usable storage in Platoro Reservoir is less - <br /> than 40% of the historic average for this time of year. Soil .. , . , - 1 . . i , <br /> JA <br /> moisture conditions have improved dramatically over the last '"�' """ JOIN ,"3" awes '""�' .. JAMI0 4 <br /> "'10 �'"` <br /> three months. As a result, ground water return flows are <br /> expected to increase in the spring. <br /> Oudoola <br /> Early snowpack has developed in the upper reaches R I 0 GRANDE NR. DEL NORTE <br /> of the basin that will contribute to above normal flow 4, <br /> conditions. Adequate storage capacity exists for normal to - //y <br /> above normal runoff. <br /> Administrative/Management Concerns: "- <br /> All diversions in the Conejos River basin were !^ s-y <br /> discontinued at the end of October to ensure that the i „ . <br /> obligation to the Rio Grande Compact would be met. The : n <br /> Rio Grande is currently in reasonable status under its 1 <br /> Compact obligation, and recharge decrees will be honored for i <br /> the first several days in November until they are curtailed as <br /> well in order to meet Compact delivery requirements. a- 4 .//: <br /> ...,_'113 <br /> Reservoir storage was initiated on November 1, 1990. The °CT'''"NWIli °°' tine <br /> Closed Basin Project continues to make deliveries to the Rio • <br /> Grande which helps Colorado in meeting its overall Compact <br /> commitments. <br /> • <br /> Public Use Impacts: <br /> Recreational uses at basin reservoirs have been Rio Grande Bas I n Reservoir Supp i i es <br /> diminished due to falling water levels. Flow in the Rio r _ <br /> Grande mainsteam has been adequate to susttain the fishery. v- j <br /> „- <br /> . . <br /> I AI-I <br /> i 9=- , <br /> I s r x <br /> 1 A <br /> " _ ./..",. <br /> . . . <br /> i1.011103 •ssw. flltrlr'1• ' <br /> ® ma.'31,31 ornear; ® tvsys°ao+lwle. <br /> 5 <br />