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Algal Conditions And The Potential For Future Algal Problems In The Willamette River Oregon
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Book Synopsis Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon by : David A. Rickert
Download or read book Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon written by David A. Rickert and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis River-quality Assessment of the Willamette River Basin, Oregon - Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon by : Geological Survey (U.S.)
Download or read book River-quality Assessment of the Willamette River Basin, Oregon - Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon written by Geological Survey (U.S.) and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis River-quality Assessment of the Willamette River Basin, Oregon by :
Download or read book River-quality Assessment of the Willamette River Basin, Oregon written by and published by . This book was released on 1977 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-quality and Algal Conditions in the Clackamas River Basin, Oregon, and Their Relations to Land and Water Management by : Kurt D. Carpenter
Download or read book Water-quality and Algal Conditions in the Clackamas River Basin, Oregon, and Their Relations to Land and Water Management written by Kurt D. Carpenter and published by . This book was released on 2003 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Geological Survey Circular by :
Download or read book U.S. Geological Survey Circular written by and published by . This book was released on 1933 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Willamette Reservoir System O&M Continuation by :
Download or read book Willamette Reservoir System O&M Continuation written by and published by . This book was released on 1980 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1977 with total page 1746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Better Monitoring Techniques are Needed to Assess the Quality of Rivers and Streams by : United States. General Accounting Office
Download or read book Better Monitoring Techniques are Needed to Assess the Quality of Rivers and Streams written by United States. General Accounting Office and published by . This book was released on 1981 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Circular written by and published by . This book was released on 1977 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geological Survey Circular by : Geological Survey (U.S.)
Download or read book Geological Survey Circular written by Geological Survey (U.S.) and published by . This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Planning Alternatives for Maintaining Desirable Dissolved-oxygen Concentrations in the Willamette River, Oregon by : David A. Rickert
Download or read book Evaluation of Planning Alternatives for Maintaining Desirable Dissolved-oxygen Concentrations in the Willamette River, Oregon written by David A. Rickert and published by . This book was released on 1976 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Appraisal of storm-water quality near Salem, Oregon by : Timothy L. Miller
Download or read book Appraisal of storm-water quality near Salem, Oregon written by Timothy L. Miller and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Portland Sewage Sludge Disposal by :
Download or read book Portland Sewage Sludge Disposal written by and published by . This book was released on 1979 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Project Development and Data Programs for Assessing the Quality of the Willamette River, Oregon by : David A. Rickert
Download or read book Project Development and Data Programs for Assessing the Quality of the Willamette River, Oregon written by David A. Rickert and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecological Effects of Waste Water by : Fereidoon Shahidi
Download or read book Ecological Effects of Waste Water written by Fereidoon Shahidi and published by CRC Press. This book was released on 1992-09-24 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This substantially revised and update edition of a work first published in 1980 in the USA and deals with the ecological effects of water pollution. It is the result of twenty years of teaching the subject and will be essential reading for all those interested in water quality.
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 2002 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-quality and Algal Conditions in the Clackamas River Basin, Oregon, and Their Relations to Land and Water Management by : Kurt D. Carpenter
Download or read book Water-quality and Algal Conditions in the Clackamas River Basin, Oregon, and Their Relations to Land and Water Management written by Kurt D. Carpenter and published by . This book was released on 2003 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
