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<br />Upper Basin Reservoirs
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<br />fontenelle
<br />Reservoir
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<br />Chart
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<br />STATISTICS
<br />ACTIVE STORAGE-
<br />IACRE.FEETI ELEVATION (FEET/
<br />344,834 6506
<br />233.789 6491
<br />194,962 6485
<br />BOSS ACRES
<br />18MILES
<br />
<br />RESERVOIR
<br />MAXIMUM STORAGE
<br />RATED HEAD
<br />MjNIMUM POWER
<br />SURFACE AREA (FULl)
<br />RESERVOIR LENGTH (FULLl
<br />POWER PLANT
<br />,,"UMBER OF UNITS
<br />TOTAL CAPACITY 10,000 KILOWATTS
<br />"dof!1 nor include 563 M;~ fttr of deld srorlJgebelow 6408 feet
<br />
<br />OUTFLOW
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<br />UPPER QUARTILE
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<br />AVERAGE
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<br />Water Year 1972
<br />
<br />During the past year, Fontenelle Reservoir
<br />was operated for hydroelectric generation, flood
<br />control, fish and wildlife enhancement, and for
<br />recreation, During the fall and winter of
<br />1971-72, the reservoir was slowly reduced from
<br />elevation 6,504 feet at the beginning of the
<br />water year to a low prior to spring runoff of
<br />elevation 6,484 feet in May, The minimum
<br />release during the fall and winter was 600 cubic
<br />feet per second (cJ,s..1 in order that power could
<br />be generated at the powerplant. Starting
<br />March 10, 1972, releases were gradually in-
<br />creased to 1,650 c.f.s, on March 16 to force the
<br />geese to build their nests on higher ground.
<br />After the actual geese-nesting period, a maxi-
<br />mum of 14,300 c.f.s. had to be released during
<br />the first part of June when the reservoir Was
<br />spilling, The reservoir as of September 30, 1972,
<br />had 342,300 acre-feet of active storage at
<br />elevation 6,506 feet, near maximum water Sur-
<br />face level.
<br />During water year 1972, the Green River
<br />April-July inflow to Fontenelle was 163 percent
<br />of the long-time average and releases to con trol
<br />the peak inflow reached 14,300 c,f.s, Without
<br />Fontenelle Dam, peak flow would have reached
<br />18,700 cJ,s, and the larger flow would have
<br />caused damage below the dam, (Chart I)
<br />
<br />2
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