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<br />RESERVOIR
<br />MAXIMUM ST';)R>\GE.
<br />RATED HEAD
<br />MINIMUM POWER
<br />SURFACE AREA (FULLJ
<br />RESERVOIR l.ENGTH (FUl.l.1
<br />POWER PLANT
<br />NUMBER O~ UNITS
<br />TOTAL CAPACITY '0,000 KILOWATTS
<br />'dots flOC include 563 BCre fttt of dtad sroragt ~Iow 6408 f~t
<br />
<br />STATISTICS
<br />ACTIVE STORAGE"
<br />IACRE:FEET) ELEVATION lFEETl
<br />3....,83.. 6506
<br />233,789 6491
<br />194,962 64B5
<br />B05BACRES
<br />lBMILES
<br />
<br />During the past year, Fontenelle Reservoir
<br />was operated for hydroelectric generati on,
<br />flood control, fish and wildlife enhancement,
<br />and for recreation. During the fall and win-
<br />ter of 1972-73, the reservoir was slowly re-
<br />duced from elevation 6,505 feet at the be-
<br />ginning of the water year to a low prior to
<br />spring runoff of elevation 6,480 feet in
<br />April 0 The minimum release during the fall
<br />and winter was 7QO cubic feet per second
<br />(c of.s.) in order that power could be gene-
<br />rated at the powerplant and fish flows main-
<br />tained. Starting March 7, 1973, releases
<br />were gradually increased to 1,660 c.Ls. on
<br />March 13 to force the geese in the Seedska-
<br />dee National Bird Refuge to build their
<br />nests on higher ground. After the actual
<br />geese hatching and nesting period, releases
<br />Were controlled to allow the reservoir to fill
<br />late in July. Special studies were made dur-
<br />ing the perio:J September 6-30, 1973, to allow
<br />the Bureau of Sport Fisheries and Wildlife and
<br />the Wyoming Game and Fish Department to
<br />make 0 study of downstream fisheries. Re-
<br />leases varied from 300 to 1,600 c.Ls. The
<br />reservoir as of September 30, 1973, had
<br />337,000 acre-feet of active storage at eleva-
<br />tion 6,505 feet. (Chart I)
<br />
<br />Upper Basin Reservoirs
<br />
<br />Fontenelle
<br />Reservoir
<br />---~
<br />
<br />I
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<br />Chart I
<br />
<br />
<br />OUTFLOW
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<br />WaterYlllr 1973
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<br />~ ;; ~ Ul 15 ~ ~ :; ~ ~ ~ ~ ~ ~ ~ ~I
<br />Watllr Year 1974 .
<br />
<br />2
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