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<br />I::IiraC1 V.lckers
<br />lit Colorado River Annual
<br />
<br />Of~" 1993
<br />-
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<br />C-Rs p- M /8es
<br />operatitP Plan Recipients .
<br />
<br />To:
<br />
<br /> Sep. Midnight
<br /> obs. intlow Percent oct. 7 Reservoir storage
<br /> (acre-teet) ot norm.al Elevation lacre-teet)
<br />fontenelle 26,500 53 6,482.72 181,400
<br />Fl ami ng Gorge 12,200 22 6,023.35 3,097,000
<br />Blue Mesa 33,800 59 7,492.00 596,800
<br />powe 11 301,000 59 3,622.49 14,028,900
<br />Navajo 49,000 96 6,076.96 1,574,400
<br />
<br />The 1993 Annual Operating Plan
<br />by the Secretary of Interior.
<br />the signed plan.
<br />
<br />(AOP) for the Colorado River has been signed
<br />This update of the AOP is in accordance with
<br />
<br />Expected Operation
<br />
<br />FONTENELLE - April through July inflow into Fontenelle was only 269,000
<br />acre-feet. This is only slightly above the record low April through July
<br />runoff of 1977 of 254,000 acre-feet and ranks as the 3rd lowest runoff on
<br />record. The 1992 water year inflow was only 558,000 acre-feet or 47
<br />percent of average and ranks as the fifth lowest inflow on record.
<br />
<br />Due to the extremely low runoff this year, Fontenelle did not fill and
<br />water storage peaked on August 8 at elevation 6487.24 at a content of about
<br />208,700 acre-feet (about 135,000 acre-feet short of full).
<br />
<br />Releases have been near minimum levels since the end of April. Currently,
<br />releases are 550 cfs and will probably remain near this level throughout
<br />the fall and winter months.
<br />
<br />FLAMING GORGE - The 1992 April through July runoff was only 337,000 acre-
<br />feet or 28 percent of average and will rank as the 4th lowest on record.
<br />The 1992 inflow into Flaming Gorge was only 722,000 acre-feet or 60 percent
<br />of average.
<br />
<br />As a result of the dry basin conditions Flaming Gorge lost approximately
<br />285,000 acre-feet of storage this year.
<br />
<br />Releases are currently averaging about 850 cfs, and are expected to remain
<br />near this level until next spring in order to conserve storage and to
<br />accommodate a low winter flow study for endangered fish.
<br />~// n../ ~/)
<br />ASPINALL - The April through July runoff into Blue Mesa
<br />464,000 acre-feet or 67 percent of the 30 year average.
<br />runoff was approximately equal to a lower decile runoff.
<br />inflow was approximately 698,000 acre-feet or 64 percent
<br />
<br />was approximately
<br />This level of
<br />Water year 1992
<br />of average.
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