River and stream water quality monitoring
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Statewide water quality monitoring network

Statewide | Southwest Region | Northwest Region | Central Region | Eastern Region

map of Washington State

Washington State

(193 stations total since WY 2008)
67 stations
126 stations sampled since 2008

Descriptions of station types:

1. Long-term stations are sampled monthly every year. The goals for this monitoring are to reveal trends and characterize water quality.

2. Basin stations are sampled monthly for one year only. We may return to a basin station every five years. The goals for these stations are to characterize water quality and address specific needs for monitoring data.

Ecology logo  Washington State Department of Ecology

Last updated September 2015. Questions or comments on content may be sent to Markus Von Prause.
Questions or comments on presentation may be sent to Steve Barrett.