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8/16/2009 2:33:37 PM
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8/8/2007 3:03:30 PM
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Board Meetings
Board Meeting Date
7/11/2007
Description
IWMD Section - Water Supply Reserve Account July 2007 Grant Allocations
Board Meetings - Doc Type
Memo
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<br />Water Supply Reserve Account - GI'ant and Loan Progl'am <br />\Vater Activity Summary Sheet <br /> <br />Applicant: Upper Yampa Water Conservancy <br />District <br /> <br />Amount Requested: $49,500.00 <br /> <br />Water Activity Name: Monison Creek <br />Reservoir Feasibility Studies <br /> <br />Water Activity Purpose: Technical Assistance for a Feasibility Study <br /> <br />Source of Funds: Basin Account <br /> <br />County: Routt <br />Drainage Basin: Yampa <br />Water Soul"Ce: Monison Creek (tributary to the Yampa River) <br /> <br />Water Activity Summary: <br /> <br />The UYWCD proposes to construct an up to 5,000 ac-ft reservoir on Monison Creek to provide additional <br />water storage in the basin and a surface water supply to the Monison Creek Water and Sanitation District. <br />Monison Creek Water and Sanitation District (MCW &S) serves a fast growing area which contains the <br />largest number of platted and un-built lots in Routt County. Cunently served only by wells the MCW &S <br />would like a surface water source that could be supplied by gravity to its customers. Concept planning <br />shows a potentially suitable dam site below the confluence of Monison and Silver Creeks that could provide <br />approximately 5,000 acre feet of storage. This is with a water surface at the elevation of the saddle between <br />the Monison Creek and Little Monison Creek Drainage where MCW &S serves customers. <br /> <br />The UYWCD has water rights which can be changed for storage at this project and will acquire additional <br />rights if needed. The UYWCD have also completed detailed aerial surveys on which the conceptual work is <br />based. This proposal would provide funding for preliminary work regarding water quality, geotechnical and <br />environmental planning. The MOlTison Creek drainage includes a tributat)', Muddy Creek that at times <br />contributes considerable turbidity to the drainage. The UYWCD will evaluate the suspended sediment load <br />and its treatment potential as a potable water source. Preliminary environmental work including wetland <br />studies and preliminary geotechnical work are included in this proposal. <br /> <br />The UYWCD has been evaluating the diversion of water from Monison creek into Stagecoach Reservoir for <br />five years. The excavation and channel work that would be required to divert this water is problematic and <br />they think a better option is a reservoir on Monison Creek. Little gaging data is available on Monison Creek <br />however information from the Division Engineers office indicates yields of 11,164 ac-ft, 7,797 ac-ft, and <br />13,141 ac-ft for spring runoff in 1991, 1994 and 1996 respectively. These numbers are above the confluence <br />with Silver Creek, indicating abundant water availability for reservoir filling. <br /> <br />1 <br />
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