|
<br />n~:'!;'Jll
<br />'J.)";;" '.... .A
<br />
<br />GUNNISON BASIN
<br />
<br />"
<br />
<br />Basinwide Conditions Assessment
<br />The SWSI value of 0,9 indicates that for May the
<br />basin water supplies were near normal. The Natural
<br />Resources Conservation Service reports that June 1
<br />snowpack is 18% of normal. Flow at the gaging station
<br />Uncompahgre River. near Ridgway was 425 cfs, as
<br />compared to the. long-term average of 327 cfs, Storage in
<br />Taylor Park, Crawford, and Fruitland reservoirs totaled 111 %
<br />of normal as. of the end 'of May,
<br />
<br />Outlook'
<br />Surface water conditions in Division 4 continue to be
<br />significantly drier than normai, with total runoff projections of
<br />only 65% of the long-term average. The areas feeling the
<br />biggest impact were the East and Taylor Rivers and the
<br />Grand Mesa, . Surprisingly, most of the Grand Mesa
<br />reservoirs filled, Only the lG!rger ones on the west end, like
<br />Island Lake, Deep Ward, and Eggleston, did not fill. This
<br />resulted in a loss of 2800 acre-feet of storage on Ward and
<br />Kiser creeks. Conversely, Surface Creek and Leroux Creek
<br />reservoirs filled, Irrigators in the North Fork Valley have
<br />started using reservoir water earlier than normal this year
<br />and expect to use most of the supply this year.
<br />
<br />Administrative/ManaaemEjnt Concerns
<br />The Uncompahgre and Gunnison Rivers peaked
<br />anywhere from one to two weeks earlier than normal,
<br />reflecting the abnormally warm temperatures in May, The
<br />impact on irrigators was' that those with junior water rights
<br />did not get their usual allotment of water during the peak
<br />runoff, The one bright spot to this was in the Lake Fork of
<br />the Gunnison drainage, where snowpack levels had been
<br />130% of normal much of the winter, The runoff continued at
<br />a relatively high and steady rate, providing an ample supply
<br />for irrigation,
<br />Reservoir storage in the basin was variable, with the
<br />mid-sized reservoirs. doing well. Paonia Reservoir filled, and
<br />Ridgway Reservoir could have, but for operational
<br />constraints, Blue Mesa and Taylor Park Reservoirs are
<br />projected to be some ten and six vertical feet short of filling,
<br />respectively,
<br />
<br />Public Use Impacts
<br />None.
<br />
<br />.~--_/
<br />
<br />^?'
<br />
<br />Jun-01
<br />
<br />
<br />GlN\I.9:NBASlNS\o\5I HSltRr'
<br />
<br />5 --.----
<br />
<br />--~.-I.
<br />
<br />~
<br />w
<br />~ ,
<br />
<br />w
<br />~
<br />~,
<br />>
<br />,
<br />w
<br />0'
<br />~
<br />
<br />fr-1
<br />o
<br />
<br />~
<br />
<br />~
<br />
<br />4 .."""_ ,_ .. .____......, ..n__.m._ ,_....__.".... n........._.,__ "'.___,...._ ___..._... n..____ '.
<br />Ja1.Q2 JaHn Jln-Il4 Ji1n.95 Jln.m JtnIJ1 Jln.llll .Jsn.Q9 JinOO .JaHl1
<br />MJNIH'''''''
<br />
<br />~/l.H:3RE ~ f\R RlDGVVAY, FlON BY WATEff'tEAR
<br />
<br />250,000
<br />
<br /> 1
<br /> ./' V
<br /> /
<br /> / .---0" .--
<br />- / /' I. .
<br /> . . / :/
<br /> f/P .---0"
<br /> .
<br />
<br />!t,'
<br />
<br />Ql 200,000
<br />i
<br />..
<br />~ 150,000
<br />9
<br />..
<br />w
<br />~ 100,000
<br />:'i
<br />"
<br />"
<br />B 50,000
<br />
<br />,
<br />,
<br />
<br />L
<br />I
<br />
<br />"
<br />L
<br />,
<br />r, '
<br />
<br />;~
<br />
<br />o
<br />(kj: N:Iv Dee Ja\ Feb Mlrdl .4f.riI Miy JlrI8 JtiY (Iud Sept,' l
<br />
<br />-&-1foEf(1984)
<br />
<br />,.
<br />1
<br />
<br />-+-CRY(1977)
<br />
<br />-+-AVG
<br />
<br />'*-aJ01
<br />
<br />-;:
<br />
<br />REPRESENTAl1VE RESERVOIRS
<br />
<br />
<br /> 00,000
<br /> 00,000
<br /> 70,000
<br />l 00,000
<br />.
<br />.
<br />ai50.CXXl
<br />~
<br />~
<br />(/,I 40,000
<br />~
<br />::g 3O,CXXl
<br />"
<br /> ,",000
<br /> 10,000
<br /> 0
<br />6
<br />
<br />
<br />IIA\g.t5'31Conten\s
<br />
<br />PJC6'31101 CqierD
<br />
<br />""_-"0'.;
<br />
|