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PROJ00235
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Last modified
2/1/2011 3:47:18 PM
Creation date
10/5/2006 11:44:57 PM
Metadata
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Template:
Loan Projects
Contract/PO #
C153633
Contractor Name
Greeley, City of
Contract Type
Loan
Water District
3
County
Larimer
Bill Number
HB 91-1006
Loan Projects - Doc Type
Feasibility Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />,I <br /> <br />4.5 <br /> <br />The Hourglass Reservoir drainage basin sediment yield is low, as it is with many high mountain <br />reservoirs. Such drainage areas have rock outcrops and dense vegetation. The sediment yield <br />is estimated to be less than 0.1 acre-feet per square mile per year. This low rate equates to <br />only 7.4 acre-feet of sediment in 100 years, a negligible amount. Very little sediment is <br />expected to be carried into Hourglass Reservoir from Comanche Reservoir. <br /> <br />WATER QUALllY <br /> <br />Water released from Hourglass Reservoir flows into Beaver Creek, the South Fork of the Cache <br />la Poudre River, and the Cache la Poudre River on to the City of Fort Collins. The water quality <br />analysis station on the Cache la Poudre River near Fort Collins was used as an appropriate <br />station to compare river water quality with municipal water standards in the Comanche Dam <br />rehabilitation study that was done by Morrison-Knudsen Engineers, Inc, <br /> <br />It is appropriate to use this station for Hourglass Reservoir releases. <br />parameters currently available from the STORET computer system are <br />following table, Table 4,5. <br /> <br />The water quality <br />summarized in the <br /> <br />4-9 <br />
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