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<br />NAVAJO RESERVOIR <br />(SAN JUAN RIVER) <br /> <br /> <br />Water Year 1990 <br /> <br />The elevation of Navajo Reser",ir at the beginning of the <br />water year was 0057.3 feet with 1,3lO,lXXl acre-feet of ti", <br />storage (77percent of capacity). At the end of water year 1990, <br />the elevation was 6061.3 "ith 1,361,lXXl acre-feet of live <br />storage (80 percent of capacity). <br /> <br />As with other drainage areas in the Upper Colorado Ri"'r <br />Basin, precipitation in the San Juan Basin \\I3.S below normal. <br />Climate conditions were eJ<1remelydryuntil Mayof 1990. The <br />May I, 1990 forecast predicted that the spring runoff would <br />be; only36percc:nt ofnarrna!. Mayand June were wet months, <br />however. and this increased the runoff significantly. Actual <br /> <br />ACTUAL RELEASES 1990 <br /> <br />THOUSAND A.CRE.fEET <br />400 <br /> <br />.... OW. TREA Il[U ." 009-NI' <br /> ...... <br /> <br />300 <br /> <br />200 <br /> <br />100 <br /> <br />o <br />ONDJFMAMJJAS <br /> <br />inflow into Nawjo Reser",ir for water year 1990 was 612,000 <br />acre.feet, 64 percent of normal. Peak inflow to Navajo <br />Reservoir occurred on June 12, 1990 at 5,540 cubic feet per <br />second. The reservoir reached a peak elevation of 6062.7 feet <br />on July 17, 1990. <br /> <br />Downstream releases from Navajo Reservoir were <br />maintained near the minimum level of 500 cu bie feet per <br />second for the entire waler year of 1990. Diversions to Navajo <br />Indian Irrigation Project (NIIP) totaled 147,000 acre.feet for <br />the \VB.ter year. <br /> <br />NAVAJO RESERVOIR <br /> <br />Reservoir <br /> <br />Acre-feet <br /> <br />Elevation, feet <br /> <br />Maximum Storage <br />Inactive Storage <br />Surface Area, full <br />Reser",ir Length, full <br /> <br />1,696,400 <br />600,500 <br /> <br />0085 <br />5990 <br />\5,6\0 Acres <br />33 Miles <br /> <br />II <br />