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Regional Water Quality Standards Information
Washington Water Quality Standards Website
Currently adopted Washington State Water Quality Standards (PDF) (121 pp, 2.9MB)
Washington State is currently undergoing a rulemaking process to adopt new human health criteria and implementation tools
Recent EPA Correspondence
Recent Actions and Request for Comments in Washington
On May 23, 2007, EPA Region 10 approved Washington's revisions to the marine chronic aquatic life cyanide criterion for waters outside of Puget Sound. Approval Letter and technical basis (PDF) (4 pp, 183K)
EPA disapproves parts of Washington State's 2003 Revised Use Designations for Aquatic Life on March 22, 2006.
- December 18, 2014: Dennis McLerran, EPA Region 10 letter to Director Maia Bellon, Department of Ecology (PDF) (2 pp, 4.7MB)
- July 1, 2014: Dennis McLerran, EPA Region 10 letter to The Honorable Doug Ericksen, Washington State Senate (PDF) (2 pp, 915K)
- April 8, 2014: Dennis McLerran, EPA Region 10 letter to Director Maia Bellon, Department of Ecology (PDF) (2 pp, 514K)
- June 21, 2013: Dennis McLerran, EPA Region 10 letter to Director Maia Bellon, Department of Ecology (PDF) (2 pp, 1.7MB)
On January 12, 2005 EPA formally approved several de minimis elements of Ecology's July 2003 water quality standard (WQS) revisions. The approved sections include those where only nonsubstantive formatting changes were made: the bacteria criteria and recreational uses, and sections that point directly to the code of federal regulations. EPA has also indicated they are not taking action on certain sections of the rule because the language is not considered a water quality standard. The letter to the department of Ecology from EPA describing the partial approval can be viewed at the following link: http://www.ecy.wa.gov/programs/wq/swqs/wqstandards-epaltr.pdf.
|Washington Department of Ecology||U.S. Environmental Protection Agency, Region 10|
|P.O. Box 47600|
Olympia, WA 98504
Fax (360) 407-6426
Becca Conklin, email@example.com
|1200 Sixth Ave, Suite 900|
Seattle, WA 98101
Fax (206) 553-0165
Matthew Szelag, firstname.lastname@example.org,