Download or read book Water Quality and Algal Conditions in the Clackamas River Basin Oregon Etc U S Geological Survey Water Resources Investigations Report 02 4189 2003 written by Geological Survey (U.S.) and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Water quality and Algal Conditions in the North Umpqua River Basin Oregon 1992 95 and Indications for Resource Management written by Chauncey W. Anderson and published by . This book was released on 1998 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Water Quality Nutrients Algal Productivity and Management Alternatives for Low flow Conditions South Umpqua River Basins Oregon 1990 92 written by Dwight Q. Tanner and published by . This book was released on 1996 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Nutrients Benthic Algae and Stream Quality During Low Streamflow in the Palouse River Basin Washington and Idaho written by Karen E. Greene and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Water Quality of the Skokomish Nooksack Etc U S Geological Survey Water Resources Investigations Report 02 4190 2003 written by Geological Survey (U.S.) and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality and Algal Data for the North Umpqua River Basin Oregon 2005 written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Water Quality Nutrients Algal Productivity and Management Alternatives for Low flow Conditions South Umpqua River Basins Oregon 1990 92 written by Dwight Q. Tanner and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality and the Effects of Changes Etc U S Geological Survey Water Resources Investigations Report 03 4011 2003 written by Geological Survey (U.S.) and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Algal Conditions in the Caloosahatchee River 1975 79 Lake Okeechobee to Franklin Lock Florida written by Benjamin F. McPherson and published by . This book was released on 1981 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality Selected Chemical Characteristics Etc U S Geological Survey Water Resources Investigations Report 02 4124 2002 written by Geological Survey (U.S.) and published by . This book was released on 2002* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Enrichment Phytoplankton Algal Growth and Estimated Rates of Instream Metabolic Processes in the Quinebaug River Basin Connecticut 2000 2001 written by Michael John Colombo and published by . This book was released on 2004 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water quality in the Great Salt Lake Basins Utah Idaho and Wyoming 1998 2001 written by and published by DIANE Publishing. This book was released on with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality of the Tlikakila River and Five Major Tributaries to Lake Clark Etc U S Geological Survey Water Resources Investigations Report 02 4127 2002 written by Geological Survey (U.S.) and published by . This book was released on 2002* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Quality of Water Sediment and Fish in Mountain Creek Lake Etc U S Geological Survey Water Resources Investigations Report 03 4082 2003 written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anthropogenic Constituents in Shallow Ground Water in the Upper Illinois River Basin U S Geological Survey Water Resources Investigations Report 02 4293 2003 written by Geological Survey (U.S.) and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: