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Willamette Basin Stream Survey
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Bottom sediments
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Ecological concentration
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Metals
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Article
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1. [Article] Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River Basin, Oregon, 1992-96
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 ...Citation -
2. [Article] Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998
This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and ...Citation