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[303(d)
& 305(b) Report]The Department of Ecology completed Washington State’s Water Quality Assessment for 2002/2004. Ecology submitted the Water Quality Assessment to EPA on June 2, 2005, as an “integrated report” to meet the Clean Water Act requirements of sections 305(b) and 303(d). EPA approved Category 5 of the Water Quality Assessment (PDF) on November 4, 2005. Category 5 represents the state’s 303(d) list of impaired waters.
Use the simple query tool or interactive mapping tool to browse the approved 2004 Category 5 for water quality listings, as well as other categories.
Please go to the contaminated sediments page to view listings for contaminated sediments.
Ecology worked with EPA to correct errors in the candidate submittal. As a result, several listings moved between categories. Please see our 2004 Water Quality Assessment Errata Table (PDF) to review these changes.
For related information on the water quality assessment, click on one of the following links:
Tools and other background information:
- Information on the 2004 Water Quality Assessment Process
- Tools to view the 2004 Water Quality Assessment Listings
- Public Process for the 2004 Water Quality Assessment
By Category:
If you have questions or need specific information on the 2002/2004 assessment, please contact:
Ken Koch Water Quality Program WA Department of Ecology P.O. Box 47600 Olympia, WA 98504-7600 360.407.6782 Email: 303d@ecy.wa.gov
Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.html.
