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Last modified
1/26/2010 12:55:16 PM
Creation date
10/12/2006 12:18:33 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.200.43.A
Description
Grand Valley/Orchard Mesa
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
12/22/1994
Title
The Grand Valley of Colorado
Water Supply Pro - Doc Type
Publication
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<br />The ability to operate the check allowed the Grand Valley water users to work <br />collectively to insure the availability of up to 2,260 cfs during the irrigation season at the <br />Cameo Gauge (the "Cameo Call") even though the nine separate water rights have priorities <br />ranging from 1882 to 1918. In the debate surrounding construction of the Colorado-Big <br />Thompson Project, West Slope interests demanded "compensatory storage" to protect existing <br />and future consumptive water uses in their area.41 Green Mountain Reservoir, constructed <br />'0 on the Blue River near Kremmling, was added to the project to meet this demand. Senate <br />Document 80, prepared in 1937 to accompany legislation authorizing the Colorado-Big <br />Thompson Project, called for Green Mountain Reservoir to have a capacity of 152,000 acre- <br />feet, with 52.000 acre-feet dedicated to "replacement" of water diverted out of the basin and <br />100,000 acre-feet for "power purposes" (to operate a hydroelectric power plant at the dam <br />with the revenues going to help pay the cost of the project). Senate Document 80 specifically <br />directed use of the 52,000 acre-feet as necessary to meet the 1,250 cfs diversion right of the <br />Shoshone Power Plant; the 100.000 acre-foot pool also was to be available for meeting <br />"existing irrigation and domestic appropriations of water, including the Grand Valley <br />Reclamation project..." as well as future domestic and irrigation uses in western Colorado.42 <br />Releases of Green Mountain water provide a critical part of the late season irrigation <br />supply in the Grand Valley. Operation of the check reduces the amount of water that must be <br />released from Green Mountain by enabling GVIC to meet its full demands (including its more <br />junior 120 cfs right) with power return flows from Orchard Mesa. Even so, in the drought <br />year of 1977, 66,000 acre~feet of water was released from Green Mountain to meet existing <br />West Slope uses. <br />For many years. the Denver Water Board contested operation of Green Mountain <br />Reservoir because it was perceived to threaten the yield from Dillon Reservoir,43 As the <br />consequence of a long series of court cases and negotiations. Green Mountain is recognized to <br />hold a 1935 priority to store 160,000 acre-feet while Dillon Reservoir and the Roberts Tunnel <br /> <br />.. Tyler at SI. <br /> <br />" Senate Document 80 at 3. <br /> <br />" This story is related in considerable detail in Tyler. <br /> <br />18 <br />
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