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. 2012 Nov 1;120(11):a430–a435. doi: 10.1289/ehp.120-a430

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graphic file with name ehp.120-a430.g003.jpg — The Elwha River empties out of the Olympic Peninsula, in the northwest corner of Washington State. The Elwha River watershed includes more than 100 miles of tributaries and a 270-square-mile drainage area.

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