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Water Quality in the Willamette Basin

National Water-Quality Assessment Program

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Willamette Basin Study Unit

National NAWQA Program

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Comments or questions may be directed to:

Hank Johnson, Project Chief <>
U.S. Geological Survey
2130 SW 5th Ave.
Portland, OR 97201

Oregon District Hydrologic Studies Page
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This page last modified on 6/15/01
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