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J.W.Marriott Library CONTENTdm Server Repository
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The upper Deschutes Basin is among the fastest growing regions in Oregon. The rapid population growth has been accompanied by increased demand for water. Surface streams, however, have been administratively closed to additional appropriation for...
2024-05-13
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INTRODUCTION The U.S. Army Corps of Engineers (USACE) operates several dams in the Columbia River Basin, which encompasses 259,000 square miles of the
Pacific Northwest. These dams are multipurpose facilities that fill regional needs for flood...
2024-05-13
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Abstract Dye-tracer analyses were done in the Willamette River and nine tributaries of the Willamette River, from April 1992 to July 1993 during low to medium stream discharge conditions, to determine velocity and dispersion. These dye-tracer...
1995-05-13
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Abstract This report describes the results of a synoptic waterquality and algal investigation during July 1995 at 36 stream sites in a 1,350 square-mile area of the North Umpqua River Basin, Oregon. The study area includes a headwaters...
1998-05-13
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Low dissolved oxygen concentrations (less than 4 milligrams per liter) have been documented in Upper Klamath and Agency Lakes, where they are detrimental to the survival of endangered sucker species in the lakes. The Bureau of Reclamation and the...
2024-05-13
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BACKGROUND Upper Klamath Lake (fig. 1) was eutrophic when first discovered by non-Indian settlers in the 1800’s; however, in recent years, significant nutrient enrichment has caused a hypereutrophic condition. In the late 1980’s, the U.S. Fish and...
1996-05-13
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SUMMARY Upper Klamath Lake is a large (140 square-mile), shallow (mean depth about 8 ft) lake in south-central Oregon that the historical record indicates has been eutrophic since its discovery by non-Native Americans. In recent decades, however,...
1996-05-13
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ABSTRACT This report presents ground-water data collected and compiled as part of a study of the ground-water resources of the upper Deschutes Basin, Oregon. Data in this report includes tabulated information and a location map for more than 1,500...
1997-05-13
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Abstract Precipitation-runoff and streamflow-routing models were constructed and assessed as part of a water-quality study of theWillamette River Basin. The study was a cooperative effort between the U.S. Geological Survey (USGS) and the Oregon...
1997-05-13
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ABSTRACT Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is one of the most intensively farmed and...
1999-05-13
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ABSTRACT The U.S. Geological Survey, in cooperation with Okanogan County, investigated the hydrogeology of the unconsolidated sedimentary deposits in the Methow River Basin, the quality of surface and ground waters, and the exchanges between...
2024-05-13
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Abstract The Williamson River Basin, located in southcentral Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage area of 1,580 square miles. Together, the...
1999-05-13
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INTRODUCTION The Washington Water Science Center of the U.S. Geological Survey (USGS), in cooperation with State, local, and other Federal agencies, obtains a large amount of data pertaining to the water resources of Washington each water year....
2024-05-13
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Abstract Sediment-phosphorus release rates as a function of pH were determined in laboratory experiments for sediment and water samples collected from Shoalwater Bay in Upper Klamath Lake, Oregon, in 2001. Areal release rates for a stable...
2024-05-13
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Abstract Concerns about mercury (Hg) contamination in Lake Whatcom, Washington, were raised in the late 1990s after a watershed protection survey reported elevated concentrations of Hg in smallmouth bass. The U.S. Geological Survey, the Whatcom...
2024-05-13
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Abstract More than 33,000 salmon and steelhead died in the lower Klamath River in late September 2002 on their way to spawning areas upstream. According to the California Department of Fish and Game, the cause of death was infection by protozoan...
2024-05-13
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Abstract Concentrations of total mercury were assessed in edible muscle (fillet) tissues of 273 fish collected from Lake Whatcom near Bellingham, Washington. Samples of six finfish species and signal crayfish were analyzed from each of the lake?s...
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ABSTRACT The U.S. Geological Survey analyzed selected hydrologic conditions as part of a watershed analysis of the Salmon River watershed, Washington, conducted by the Quinault Indian Nation. The selected hydrologic conditions were analyzed...
2024-05-13
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ABSTRACT Upper Klamath Lake and the connecting Agency Lake constitute a large, shallow lake in south-central Oregon that the historical record indicates has likely been eutrophic since its discovery by non-Native Americans. In recent decades,...
1997-05-13
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ABSTRACT This report documents modifications to the U.S. Geological Survey modular, three-dimensional, finite-difference, ground-water flow model, commonly called MODFLOW, so that it can read and write files used by a geographic information system...
1992-05-13
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Abstract Water-quality samples were collected at 10 sites in the Clark Fork-Pend Oreille and Spokane River Basins in water years 1999 – 2001 as part of the Northern Rockies Intermontane Basins (NROK) National Water-Quality Assessment (NAWQA)...
2024-05-13
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Abstract This report presents trace-element, organic-compound (pesticides, volatile and semi-volatile organic, and dioxin and furan compounds), and nutrient concentration data from the analyses of water column, suspendedsediment, and bed-sediment...
1995-05-13
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ABSTRACT A study of the water resources of the ground-water system in the unconsolidated deposits of the Colville River Watershed provided the Colville River Watershed Planning Team with an assessment of the hydrogeologic framework, preliminary...
2024-05-13
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ABSTRACT Regulation of the shorelines of the State of Washington, as mandated by the Shoreline Management Act of 1971, requires knowledge of the locations on streams and river reaches where specific regulatory criteria are satisfied. The U.S....
2024-05-13
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This website is a portal to information about the Williamette River Basin provided by the Oregon State University Library. It includes a geospatial data collection, publications, photos and videos, map and report tools, a listing of experts in the...
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