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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 × Citation Citation Abstract Copy Title: Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River Basin, Oregon, 1992-96 Author: Bonn, Bernadine A., Washington County (Or.). Unified Sewerage Agency., Geological Survey (U.S.) 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 were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of the Tualatin River Basin; compare contaminant levels found in Tualatin River Basin streams with published guidelines for the protection of aquatic life; place the contaminant levels found in the Tualatin River Basin streams in context, regionally and nationally, by comparing them with those found in the Willamette Basin and by the USGS National Water-Quality Assessment (NAWQA) Program; compare contaminant concentrations in bed sediment with those in fish tissue; and identify contaminant patterns that would help managers make decisions regarding future monitoring and the implementation of pollution prevention and abatement programs. Title: Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River Basin, Oregon, 1992-96 Author: Bonn, Bernadine A., Washington County (Or.). Unified Sewerage Agency., Geological Survey (U.S.) 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 were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of the Tualatin River Basin; compare contaminant levels found in Tualatin River Basin streams with published guidelines for the protection of aquatic life; place the contaminant levels found in the Tualatin River Basin streams in context, regionally and nationally, by comparing them with those found in the Willamette Basin and by the USGS National Water-Quality Assessment (NAWQA) Program; compare contaminant concentrations in bed sediment with those in fish tissue; and identify contaminant patterns that would help managers make decisions regarding future monitoring and the implementation of pollution prevention and abatement programs. Close

• 2. [Article] Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95

  The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various ...

  Citation × Citation Citation Abstract Copy Title: Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95 Author: National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), Hinkle, Stephen R. The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various natural and anthropogenic factors. Several natural and anthropogenic factors (soil characteristics, cumulative thickness of clay above open interval of well, surficial geology, and land use) were evaluated because of the potential for these factors to either control or be related to contaminant occurrence and spatial distribution. Spatial distributions of nitrite plus nitrite, phosphorous, pesticides and pesticide degradation products, volatile organic compounds (VOCs), trace elements (primarily arsenic, a trace element of local concern), and radon were evaluated for 1993-95. Ancillary chemical data--nitrite, chloride, tritium (H-3), and dissolved-oxygen (DO) concentrations--also are presented. Title: Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95 Author: National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), Hinkle, Stephen R. The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various natural and anthropogenic factors. Several natural and anthropogenic factors (soil characteristics, cumulative thickness of clay above open interval of well, surficial geology, and land use) were evaluated because of the potential for these factors to either control or be related to contaminant occurrence and spatial distribution. Spatial distributions of nitrite plus nitrite, phosphorous, pesticides and pesticide degradation products, volatile organic compounds (VOCs), trace elements (primarily arsenic, a trace element of local concern), and radon were evaluated for 1993-95. Ancillary chemical data--nitrite, chloride, tritium (H-3), and dissolved-oxygen (DO) concentrations--also are presented. Close

• 3. [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 × Citation Citation Abstract Copy Title: Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998 Author: Hinkle, Stephen R., Geological Survey (U.S.) 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 minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected at 10 sites. Aqueous trace-element concentrations are compared with U.S. Environmental Protection Agency (USEPA) criterion continuous concentrations for the protection of aquatic life. Streambed-sediment trace-element concentrations are compared with Canadian sediment quality guidelines for the protection of aquatic life and, to provide a frame of reference, with previously collected streambed-sediment data from the Willamette Basin in western Oregon. Title: Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998 Author: Hinkle, Stephen R., Geological Survey (U.S.) 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 minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected at 10 sites. Aqueous trace-element concentrations are compared with U.S. Environmental Protection Agency (USEPA) criterion continuous concentrations for the protection of aquatic life. Streambed-sediment trace-element concentrations are compared with Canadian sediment quality guidelines for the protection of aquatic life and, to provide a frame of reference, with previously collected streambed-sediment data from the Willamette Basin in western Oregon. Close