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Brian Mengel,
Civil Servant
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Hydro – Hydroelectric dams and reservoirs change the timing, speed, quantity and temperature of river flows.
The hydroelectric dams on the Lewis River are owned and operated jointly by PacificCorp and the Cowlitz Public Utility District.
Hydroelectric projects also include beneficial effects such as recreation in reservoirs or in tailwaters below dams.
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Bori Gonbutoren,
Reindeer Herder
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It is believed that a major reason for the declining populations is the presence of hydroelectric power-generating dams on the rivers the salmon use to spawn.
Hydroelectric dams are necessarily upstream of aanestuary.
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Astrid Schuhmann,
Backpacker
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Other dams operate on the Nile in Sudan and Uganda to provide hydroelectric power and surplus water during the dry season.
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Arthur Dawkins,
Astro-physicist
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Hydroelectric dams have sometimesgiven way naturally,and at one time the "natural" failures made hydropowerone of the more dangerous energy sources.
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