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This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.
220 pp. Bookmarks supplied by UO. Maps, tables, charts, appendices. Published March, 2005. Captured January 27, 2009.
Water quality problems related to excessive algal
The U.S. Geological Survey (USGS) has worked cooperative with the Unified Sewerage Agency of Washington County (USA) since 1990 to assess water quality in the Tualatin River Basin. The objectives of this study...
This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.
The purpose of this paper is to examine the literature from scientific and governmental entities that describes the problems with elevated stream temperatures in the Tualatin basin, the actions being taken to...
24 pp. Adopted 2010-08-30. Department of Land Conservation and Development Notice of Adopted Amendment
29 pp. Adopted 2010-12-22. Department of Land Conservation and Development Notice of Adopted Amendment