2014 Water Quality Assessment and Candidate 303(d) List Submittal to EPA for Washington State Using Fresh Water Data
Ecology submitted the 2014 Water Quality Assessment and Candidate 303(d) list to EPA on September 28, 2015 for review and approval. The following were part of the submittal package to EPA:
About the 2014 Water Quality Assessment
This Assessment updates fresh water listings based on data collected. New with this Assessment, we are updating how we map polluted rivers, lakes and streams. We are moving from a land-based system (township/range/section) to a water-based (National Hydrography Layer) system. The mapping change helps us be consistent with other agencies and states, and is strongly recommended by the Environmental Protection Agency.
The Assessment fulfills Washington State’s obligation under the federal Clean Water Act (CWA) §303(d) and §305(b) to identify polluted waters (known as the 303(d) list) as well as report on the status of water quality statewide where data is available.
Questions about the updates
Background Information on the Draft 2014 Assessment
For questions about the 2014 Water Quality Assessment submittal, please contact:
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Last updated January 2016
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