Routine freshwater monitoring data collected by the The WA State Department of Ecology's River and Stream Monitoring Program are summarized by a technique called the "Water Quality Index" (WQI). The WQI ranges from 1 (poor quality) to 100 (good quality). The WQI summary does not include non-standard elements like metals. For temperature, pH, oxygen, and fecal coliform bacteria, the WQI is based on criteria in Washington’s Water Quality Standards, WAC 173-201A.
For nutrient and sediment measures where standards are not specific, results are based on expected conditions in a given region. Multiple constituents are combined and results aggregated over time to produce a single score for each station and each year.

The map contains greenhouse gas (GHG) data reported to Ecology as of December 15, 2018. The reported emissions are preliminary and have not been fully verified by Ecology. This information is subject to change.

Summer Low Flow Trend Indicator results, statewide, updated through Oct 2013.

This information is updated annually with an additional year of flow data. These results are provided to the Puget Sound Partnership for their Vital Signs (http://www.psp.wa.gov/vitalsigns/summer_stream_flows.php) and to the Governor's Salmon Recovery Office for the "State of Salmon in WAtersheds" report (http://stateofsalmon.wa.gov/statewide/indicators/water-quantity).

The attached document "WR Indicator Outcomes Memo - 10-24-10.pdf" describes the methodology for developing these indicators.

The attached document "Low Flow Indicator Metadata.pdf" describes the contents of each column.

Dept. of Ecology home page: http://www.ecy.wa.gov/

Disclaimer:
Information provided by Ecology on this Web site is accurate to the best of Ecology's knowledge and is subject to change on a regular basis, without notice. Ecology cannot and does not warrant that the information on this Web site is absolutely current, although every effort is made to ensure that it is kept as current as possible. Ecology cannot and does not warrant the accuracy of these documents beyond the source documents, although every attempt is made to work from authoritative sources. Links to related sites are provided as a courtesy, but Ecology is not responsible for their availability, content or policies.

Routine freshwater monitoring data collected by the The WA State Department of Ecology's River and Stream Monitoring Program are summarized by a technique called the "Water Quality Index" (WQI). The WQI ranges from 1 (poor quality) to 100 (good quality). The WQI summary does not include non-standard elements like metals. For temperature, pH, oxygen, and fecal coliform bacteria, the WQI is based on criteria in Washington’s Water Quality Standards, WAC 173-201A.
For nutrient and sediment measures where standards are not specific, results are based on expected conditions in a given region. Multiple constituents are combined and results aggregated over time to produce a single score for each station and each year.

The WQI station map shows the WQI annual scores for all stations from 2013. These maps show status at the individual stations but also give a general sense of water quality conditions . This often doesn't apply higher in the watersheds where we have very little WQI-type data--though downstream results can provide clues about what's happening upstream.

New data (unverified) within this dataset is preliminary and subject to change per the verification process.

New data (unverified) within this dataset is preliminary and subject to change per the verification process.

This is a map of sites that have institutional controls or environmental covenants. (64.70 RCW Uniform Environmental Covenants Act)

The Washington Department of Ecology (Toxics Cleanup Program) works to clean up contaminated sites/properties throughout the state of Washington. This data was downloaded from the Integrated Site Information System (ISIS) database and is updated monthly.

WDFW Juvenile Salmon Density Data