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<br />UPPER BASIN RESERVOIRS <br /> <br />FONTENELLE RESERVOIR <br />(GREEN RIVER) <br /> <br /> <br />Water Year 1991 <br /> <br />Water year 1991 marked the second full year of normal <br />operations for Fontenelle Reservoir since the construction of <br />a concrete cutoffwall to reduce seepage through the dam. The <br />concrete cutoff wall is performing satisfactorily, as seepage <br />past the dam has been reduced considerably. <br /> <br />The Aprillhrough July runoff into Fontcnclle Rcscrmir was <br />693,000 acre-feet which was 82 percent of a verage. Inflow for <br /> <br />ACTUAL RELEASES 1991 <br /> <br />THOUSAND ACRE-FEET <br />'00 <br /> <br /> I <br /> / \ <br />./ "" ......... <br /> <br />300 <br /> <br />,00 <br /> <br />,00 <br /> <br />o <br />ONDJFMAMJJAS <br /> <br />the entire: 1991 water year was I,017,CXX> acre-fect, 85 percent <br />of 8'\erage. The total release from FonteneUe Dam for water <br />year 1991 was 958,000 acre-feel. <br /> <br />Peak inflow to Fontenelle Reservoir '\.VaS 9,900 cubic feet per <br />second on June 16, 1991. The rescrmir filled in Julyof ]991. <br />Approximately 150,000 acre-feel of walcr bypassed the <br />powerplant's turbines. <br /> <br />FONTENELLE RESERVOIR <br /> <br />Reservoir <br /> <br />Acre-feet <br /> <br />Elevation, feet <br /> <br />Storage Capacity <br />Rated Head <br />Minimum Power <br />Surface Area, full <br />Reservoir Length, full <br /> <br />344,834 <br />233,789 <br />194,962 <br /> <br />6506 <br />6491 <br />6485 <br />8,058 Acres <br />18 Miles <br /> <br />Powerplant <br /> <br />Number ofUnils <br />Totai Capacily <br /> <br />I <br />10,000 KW <br /> <br />5 <br />