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<br />
<br />Annual water budget
<br />(Annual averages for representative period 1947-1961, inclusive)
<br />
<br />Item
<br />
<br />South Platte flow above Jackson Lake inlet
<br />Less diversions:
<br />Jac)tson Lake inlet
<br />Weldon Valley canal
<br />Fort Morgan canal
<br />Subtotal
<br />
<br />Plus accretions:
<br />Jackson Lake outlet
<br />Jackson Lake seepage
<br />Other reservoir seepage and inflow (gains)
<br />South Platte River flow at Narrows site
<br />Less releases and losses from reservoir site:
<br />Releases for downstream historic diversion
<br />Releases, historic Fort Morgan canal
<br />Reservoir seepage
<br />Reservoir evaporation
<br />Spills
<br />
<br />Project water supply
<br />
<br />Residual river flows
<br />
<br />South Platte River flow at Narrows site
<br />Less reservoir depletions:
<br />Evaporation
<br />Releases, historic Fort Morgan canal
<br />Releases, supplemental Fort Morgan canal
<br />Outflow to river at Narrows Dam site
<br />Return flow and gain, Narrows-Julesburg
<br />Total supply, Narrows-Julesburg
<br />Less diversions, Narrows -Julesburg
<br />South Platte River outflow at Julesburg
<br />
<br />y
<br />EJ
<br />
<br />Historic Future
<br />without with
<br />Narrows Narrows
<br />373,400 373,400
<br />-38,800 Y -18,900
<br />-32,900 a 0
<br />-43,200 0
<br />285,500 354,500
<br />22,200 0
<br />11,100 11,100
<br />73,400 73,400
<br />365,200 439,000
<br />-175,700 -137,400 E/
<br />0 -43,200
<br />0 -43,000
<br />0 -23,600
<br />-189,500 -72 ,400
<br />0 119,400
<br />
<br />
<br />365,200
<br />
<br />439,000
<br />
<br />-23,600
<br />-43,200
<br />- 3,300
<br />368,900
<br />392,100
<br />761,000
<br />-531,100
<br />229,900
<br />
<br />o
<br />o
<br />o
<br />365,200
<br />343,500
<br />708,700
<br />-393,700
<br />315,000
<br />
<br />Will provide 31,000 acre-feet direct yield plus 1,900 acre-feet
<br />storable.
<br />Releases from Narrows Reservoir for downstream diversions are
<br />less than historic because the remainder of 38,300 acre-feet
<br />can be obtained from di vertible reservoir seepage flows.
<br />
<br />4
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