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WSP06981
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Last modified
1/26/2010 2:25:14 PM
Creation date
10/12/2006 2:01:52 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8276.110
Description
Grand Valley Unit-Colorado River Basin Salinity Control Project
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
6/16/1978
Title
Negative Determination of Environmental Impact: Stage One of the Grand Valley Unit - Colorado River Basin Salinity Control Project
Water Supply Pro - Doc Type
EIS
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<br />L() <br />, C'-J <br />CJ <br />'C> <br />~'J <br />(:) <br /> <br />diversity of species than unprotected areas and can be very productive <br />wildlife areas. Acquisition of bottom land would also help preserve <br />winter habitat for the bald eagle. The net result would be a diverse <br />wildlife population which would be both self sustaining and sufficient <br />to support hunting use in the area. <br /> <br />As river woodland habitat was acquired and developed for wildlife <br />under Stage One, many beneficial purposes would be served by providing <br />for the protection and management of these areas for hunters, fishermen, <br />and general recreationists. While this acquisition,would not replace <br />losses of pheasant hunting in the Stage One area, it would create <br />additional waterfowl hunting and other wildlife-oriented recreation <br />experiences. <br /> <br />Because the peregrine falcon and the whooping crane, both Federally <br />listed endangered species, are not dependent on any habitats that might <br />be altered by the Stage One development, impacts upon the species are <br />not expected. Acquired river woodland habitat would provide and pre- <br />serve winter habitat for the endangered bald eagle. The endangered fish <br />species in the Colorado River in the Grand Valley and downstream would <br />not be impacted by Stage One construction because of the insignificant <br />changes in flows and water quality in the river. <br /> <br />S. Canal Hazards to Health and Safety <br /> <br />Pipe laterals and safety features constructed along the Government <br />Highline Canal, such as fencing and escape ladders, would reduce the <br />possibility of drowning. If, however, persons were able to get into the <br />canals despite these safety features, the chances of injury or drowning <br />would be greater because of higher velocities and increased difficulty in <br />climbing concrete banks. The reduction of marsh areas resulting from <br />reduced canal and lateral seepage would aid mosquito control. <br /> <br />6. Recreation <br /> <br />The Stage One development should not alter the use of Highline Lake. <br />Hunting and other wildlife-oriented recreation would be reduced in parts <br />of the Stage One area, but increased use on the wildlife lands acquired <br />and developed would offset this loss. <br /> <br />7. Agricultural Chemicals <br /> <br />Lining the canal and enclosing 'the laterals in the Stage One area <br />would reduce the vegetative growth around those facilities and would <br />decrease the need to use herbicides along ditch banks and in seep areas. <br />The use of chemicals to control aquatic plants would be less because <br />increased velocities in the canal would decrease the buildup of moss and <br /> <br />"_I. <br />
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