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Environmental setting of the Willamette basin, Oregon

Water-Resources Investigations Report 97-4082-A
By:  and 
https://doi.org/10.3133/wri974082A

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Abstract

The Willamette Basin, Oregon, is one of more than 50 large river basins and aquifer systems (referred to as study units) across the United States where the status and trends of water quality and the factors controlling water quality are being studied by the National Water-Quality Assessment Program of the U.S. Geological Survey. The 12,000-square-mile Willamette Basin Study Unit consists of the Willamette and Sandy River Basins, which are tributary to the Columbia River. The Willamette River is the 13th largest in the conterminous United States in terms of discharge and is the largest of all major United States rivers in terms of discharge per square mile of drainage area. The environmental setting of a study unit includes all natural and human related, land based factors that have the potential to influence the physical, chemical, and/or biological quality of its surface and ground water resources. For the Willamette Basin, these include primarily ecoregions, hydrogeology, climate, hydrology, land use/land cover, and crop types.

Suggested Citation

Uhrich, M.A., Wentz, D.A., 1999, Environmental setting of the Willamette basin, Oregon: U.S. Geological Survey Water-Resources Investigations Report 97-4082, vi, 20 p. :ill. (some col.), maps (some col.) ;28 cm., https://doi.org/10.3133/wri974082A.

Publication type Report
Publication Subtype USGS Numbered Series
Title Environmental setting of the Willamette basin, Oregon
Series title Water-Resources Investigations Report
Series number 97-4082
Chapter A
DOI 10.3133/wri974082A
Year Published 1999
Language ENGLISH
Publisher U.S. Dept. of the Interior, U.S. Geological Survey ;Branch of Information Services [distributor],
Contributing office(s) Oregon Water Science Center
Description vi, 20 p. :ill. (some col.), maps (some col.) ;28 cm.
Additional publication details