Download or read book Willamette River Basin written by and published by . This book was released on 1974 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Study written by Fremont W. Merewether and published by . This book was released on 1968 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Quality in the Willamette Basin Oregon 1991 95 written by Dennis A. Wentz and published by Geological Survey (USGS). This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Oregon written by United States. Army. Corps of Engineers and published by . This book was released on 1963 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Study written by Stanley V. Gregory and published by . This book was released on 1993 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Ground water and Water chemistry Data for the Willamette Basin Oregon written by and published by . This book was released on 2000 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Oregon written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Water Quality Study written by Oregon. Department of Environmental Quality. Water Quality Division and published by . This book was released on 1994* with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reservoir system Model for the Willamette River Basin Oregon written by James O. Shearman and published by . This book was released on 1976 with total page 32 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 Willamette River Basin Water Quality Study Update written by Oregon. Department of Environmental Quality and published by . This book was released on 1993 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River Quality written by David A. Dunnette and published by CRC Press. This book was released on 2018-05-04 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is involved in restoring a river? River Quality: Dynamics and Restoration answers this question through a series of articles and case studies written by some of the field's leading researchers and practitioners. The first part of the book covers the physical, chemical, and biological dynamics of a river system. The second part describes monitoring programs and remedial measures used to restore river systems back to healthy and functional states. The Willamette River in Oregon and the Vistula River in Poland are used to illustrate the dynamic and restoration processes. Each river is in a different stage of restoration and is subjected to different degrees of stress from agriculture, industry, and urbanization. The Willamette is an internationally cited example of a restored river, while the Vistula is a river that has just recently begun the restoration process. Contrasts and comparisons of the two river systems enable readers to learn the limitations of restoration processes and what is involved in the different stages of restoration.
Download or read book Willamette River Basin Water Quality Study written by Tetra Tech, Inc and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 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 published by . This book was released on 2002 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Water Quality Study written by Stanley V. Gregory and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Willamette River Basin Review Reconnaissance Study written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processes Controlling Dissolved Oxygen and PH in the Upper Willamette River Basin Oregon 1994 written by Ted R. Pogue and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
