water

Environmental Assessment Program


 River and Stream Water Quality Monitoring

Bill Ward prepares samples for the lab

River and Stream Water Quality Monitoring, also called the ambient program, monitors water quality at nearly 100 stream stations throughout the state every month.

Freshwater Quality Monitoring Methods explains how the team collects water-quality data.


River and Stream Stations - Data Access




Statewide water quality monitoring network
Show stations by watershed/ WRIA (Water Resource Inventory Area).
Choose from the list below:
See Select a Washington Watershed by Zip Code to learn your WRIA number.
Using River and Stream Water Quality Data describes how to download and read the information we collect.

Data Quality discusses how accurate our information is and what lengths we go to to make certain it's accurate.

Reports and Publications

Each Water Year, from October through September of the following year, the Freshwater Ambient Monitoring Team creates a water quality annual report, summarizing that year's data. Every month, they offer provisional data as it becomes available.

Rivers and Streams – Annual Water Quality Reports links to an index of the freshwater quality annual reports.

Rivers and Streams links to general Ecology publications that address rivers and streams.

Contacts

Contact the River and Stream Water Quality Monitoring Team for more information. Know who is checking your watershed or basin.

 

Spotlight

Statewide water quality monitoring network data

Ecology Video: "Ecology in Focus: Bill Ward, Stream Ecologist"

LATEST REPORT
River and Stream Water Quality Monitoring Report, Water Year 2013