Willamette River Basin Oregon
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Willamette River Basin Oregon
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Author :
language : en
Publisher:
Release Date : 1966
Willamette River Basin Oregon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Hydroelectric power plants categories.
Willamette River Basin Oregon Bank Protection And Channel Improvement
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Author : United States. Army. Corps of Engineers
language : en
Publisher:
Release Date : 1964
Willamette River Basin Oregon Bank Protection And Channel Improvement written by United States. Army. Corps of Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Flood control categories.
Willamette River Basin Oregon
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Author : United States. Army. Corps of Engineers
language : en
Publisher:
Release Date : 1963
Willamette River Basin Oregon written by United States. Army. Corps of Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Water resources development categories.
Report
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Author : Oregon. Willamette River Basin Commission
language : en
Publisher:
Release Date : 1948
Report written by Oregon. Willamette River Basin Commission and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with categories.
Willamette River Basin Oregon
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Author : United States. Department of Agriculture. Willamette River Basin Survey Staff
language : en
Publisher:
Release Date : 1964
Willamette River Basin Oregon written by United States. Department of Agriculture. Willamette River Basin Survey Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Water resources development categories.
Reservoir System Model For The Willamette River Basin Oregon
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Author : James O. Shearman
language : en
Publisher:
Release Date : 1976
Reservoir System Model For The Willamette River Basin Oregon written by James O. Shearman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Geology categories.
For nearly half a century the Willamette River in Oregon experienced severe dissolved-oxygen problems related to large loads of organically rich waste waters from industries and municipalities. Since the mid-1950 's dissolved oxygen quality has gradually improved owing to low-flow augmentation, the achievement of basinwide secondary treatment, and the use of other waste-management practices. As a result, summer dissolved-oxygen levels have increased, salmon runs have returned, and the overall effort is widely regarded as a singular water-quality success. To document the improved dissolved-oxygen regimen, the U.S. Geological Survey conducted intensive studies of the Willamette during the summer low-flow seasons of 1973 and 1974. During each summer the mean daily dissolved-oxygen levels were found to be higher than 5 milligrams per liter throughout the river. Because of the basinwide secondary treatment, carbonaceous deoxygenation rates were low. In addition, almost half of the biochemical oxygen demand entering the Willamette was from diffuse (nonpoint) sources rather than outfalls. These results indicated that point-source biochemical oxygen demand was no longer the primary cause of dissolved-oxygen depletion. Instead, the major causes of deoxygenation were nitrification in a shallow ' surface active ' reach below Salem and an anomalous oxygen demand (believed to be primarily of benthal origin) in Portland Harbor.
Willamette River Basin Oregon
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Author : Pacific Northwest River Basins Commission. Willamette Task Force
language : en
Publisher:
Release Date : 1967
Willamette River Basin Oregon written by Pacific Northwest River Basins Commission. Willamette Task Force and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with categories.
Estimates Of Ground Water Recharge Base Flow And Stream Reach Gains And Losses In The Willamette River Basin Oregon
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Author : Karl K. Lee
language : en
Publisher:
Release Date : 2002
Estimates Of Ground Water Recharge Base Flow And Stream Reach Gains And Losses In The Willamette River Basin Oregon written by Karl K. Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Groundwater flow categories.
Methodology For River Quality Assessment With Application To The Willamette River Basin Oregon
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Author : David A. Rickert
language : en
Publisher:
Release Date : 1976
Methodology For River Quality Assessment With Application To The Willamette River Basin Oregon written by David A. Rickert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Geology categories.
River Quality Assessment Of The Willamette River Basin Oregon
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Author : Geological Survey (U.S.)
language : en
Publisher:
Release Date : 1975
River Quality Assessment Of The Willamette River Basin Oregon written by Geological Survey (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.