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HYDRO23092
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HYDRO23092
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Last modified
8/24/2016 8:43:45 PM
Creation date
11/20/2007 3:31:22 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977493
IBM Index Class Name
Hydrology
Doc Date
7/7/2006
Doc Name
East Fork Pump Station
From
Climax Molybdenum Company
To
DMG
Permit Index Doc Type
Correspondence
Media Type
D
Archive
No
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SITE AND PROJECT DESCRIPTION <br />-- c <br />The Climax Mine (Climax) intends to construct a pump station and attendant <br />features for pumping water from the East Fork of the Eagle River (the East Fork) into <br />Eagle Park Reservoir. The reservoir is owned by Eagle Park Reservoir Company <br />(EPRCo). The design, construction, and commissioning of the East Fork Pump Station <br />by Climax is an obligatory part of the 1998 sale of the reservoir to EPRCo. The pump <br />station and attendant features including the discharge pipeline and electrical power <br />supply will be located on property owned by Climax. The boundary of U.S. Forest <br />Service (USES) lands is nearby, both to the pump station and the access road to the <br />site. The construction of the pump station will not encroach on USES lands and, indeed, <br />a wider buffer will be established by re-alignment of the access road. The location of the <br />site is shown on Figure 1. Figure 2 is a site plan that shows the relative locations of the <br />proposed pump station and intake, the access roads, the wetland sites, and potential <br />mitigation areas. Figures 2 through 10 show more details of the surveyed wetland <br />boundaries. Photographs of the wetland and stream sites are also included. <br />Photographs of the Sample Point evaluations are included with the data forms. <br />Water will be diverted from the East Fork to the pump station through a 20-inch <br />diameter pipe. The diversion structure will also include aloes-flow bypass gate that will <br />prevent diversions unless the natural stream flow exceeds 1.5 cfs. The State of <br />Colorado has acquired a minimum stream flow water right for the 1.5 cfs, which will be <br />met by the bypass. The diversion structure will be a permanent encroachment or impact <br />on the stream channel up to the elevation of ordinary high waterline. <br />The pump station foundation will straddle the streambed of an unnamed tributary <br />of the East Fork just above its confluence with the East Fork. That tributary is an <br />intermittent flow channel that is also the channel through which the reservoir releases <br />are conveyed. The pump station will not divert from the tributary channel. The pump <br />station will include three vertical turbine pumps controlled by level probes in the wet-well <br />of the pump station that is filled by the 20" intake pipe. The footprint of the pump station <br />foundation will be a permanent encroachment and impact to the streambed up to the <br />ordinary high water line of the channel. <br />
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