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<br /> <br />RECEIVED <br />FEB 1 9 1999 <br /> <br />UPPER COLORADO <br />RIVER COMMISSION <br /> <br />Colorado Water <br />Conservation Bearo <br /> <br />355 South 400 East. Sa it Lake City . Utah 84111 . 801-531-1150 . FAX 801-531-9705 <br />TO: Upper Colorado River Commissioners and Advisers <br /> <br />FROM: Everett E. Sunderland. Staff Engineer <br /> <br />DATE: February 10, 1998 <br /> <br />SUBJECT: CONTENT AND STREAMFLOW OF SELECTED COLORADO RIVER BASIN <br />RESERVOIRS AND TRlBUT ARlES, <br /> <br />UPPER BASIN RESERVOm CONDITIONS <br />Conditions for selected Colorado River System reservoirs on January 31, 1999 are shown in <br />Table I. Data was taken from the monthly reservoir summary provided by the Bureau of <br />Reclamation Upper Colorado Regional Office Water Resources Group. Reservoir storage <br />capacity conditions for January 31, 1999 are also shown below in figure 1. <br /> <br />Table I. <br />STORAGE <br />RESERVOIR <br /> <br />Conditions for Colorado River System Reservoirs. January 31, 1999 <br /> <br />WATER SURFACE <br />ELEVATION <br />(It) <br /> <br />RESERVOIR <br />LIVE CONTENT <br />(1000 an <br /> <br />CHANGE IN <br />CONTENT <br />(1000 a,f) <br /> <br />LIVE STORAGE <br />CAPACITY <br />(1000 a.f.) <br /> <br />LIVE STORAGE <br />CAPACITY <br />(%J <br /> <br />Fontenelle <br /> <br />Flaming Gorge <br />Blue Mesa <br /> <br />Na'vajo <br />Lake Powell <br /> <br />Upper Basin Total <br /> <br />6,483,31 <br />6,02980 <br />7,488,04 <br />6,063.61 <br />3.680.59 <br /> <br />185,60 <br />3,341.30 <br />566.20 <br />1,39440 <br />21,344,10 <br />26,831.60 <br /> <br />(41.90) <br />(58,50) <br />(11.70) <br />(17.70) <br />(310.00) <br />(439.80) <br /> <br />345 <br />3,749 <br />829 <br />1,696 <br />24,322 <br />30,94t <br /> <br />100% I <br /> <br />80% I <br />I <br />60% I <br />I <br />40% I <br />I <br />20% I <br />I <br />0%1 <br />romcncllc <br /> <br />Live Storage Capacity <br />Conditions January 31,1999 <br /> <br /> <br />SIUll <br />M... <br /> <br />Navajo <br /> <br />La" <br />Powell <br /> <br />Upper <br />Basin <br />TOUlI <br /> <br />Florung <br />-, <br /> <br />1_ Live Content <br /> <br />EEl Available Storage I <br /> <br />Figure 1. <br /> <br />53.80% <br />89,13% <br />68.30% <br /> <br />82.22% <br /> <br />87,76% <br />86.72% <br />