The Columbia River Basin Project for Water Supply and Water Quality Management PDF Download
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Author: United States. Public Health Service
Publisher:
ISBN:
Category : Columbia River
Languages : en
Pages : 40
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Book Description
Author: United States. Public Health Service
Publisher:
ISBN:
Category : Columbia River
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category : Water-supply
Languages : en
Pages : 26
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Book Description
Author:
Publisher:
ISBN:
Category : Water quality management
Languages : en
Pages : 23
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Book Description
Author: United States. Public Health Service. Region IX.
Publisher:
ISBN:
Category : Water-supply
Languages : en
Pages : 11
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Book Description
Author:
Publisher:
ISBN:
Category : Water quality management
Languages : en
Pages : 11
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Book Description
Author: U.S. Department of Health, Education and Welfare
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
Author:
Publisher:
ISBN:
Category : Reservoirs
Languages : en
Pages : 70
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Book Description
Author: United States. Public Health Service. Region IX.
Publisher:
ISBN:
Category : Basins
Languages : en
Pages : 11
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Book Description
Author:
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 248
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309091551
Category : Technology & Engineering
Languages : en
Pages : 261
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Book Description
Flows of the Columbia River, although modified substantially during the twentieth century, still vary considerably between seasons and between years. Lowest flows tend to occur during summer months when demand for irrigation water is at its highest and when water temperatures are greatest. These periods of low flows, high demand, and high temperature are critical periods for juvenile salmon migrating downstream through the Columbia River hydropower system. Although impacts on salmon of any individual water withdrawal may be small, the cumulative effects of numerous withdrawals will affect Columbia River flows and would pose increased risks to salmon survival. The body of scientific knowledge explaining salmon migratory behavior and physiology is substantial, but imperfect, and decision makers should acknowledge this and be willing to take action in the face of uncertainties. In order to provide a more comprehensive water permitting process, the State of Washington, Canada, other basin states, and tribal groups should establish a basin-wide forum to consider future water withdrawal application permits. If the State of Washington issues additional permits for water withdrawals from the Columbia River, those permits should contain provisions that allow withdrawals to be curtailed during critical high-demand periods.
