EPA Disapproves Parts of Washington State's 2003 Revised Use Designations for Aquatic Life | Region 10 | US EPA

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EPA Disapproves Parts of Washington State's 2003 Revised Use Designations for Aquatic Life

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Overview

In July 2003 the State of Washington adopted revised Water Quality Standards and submitted them to the Environmental Protection Agency (EPA). On January 12, 2005 EPA approved portions of the 2003 Water Quality Standards. EPA has now completed its review of the aquatic life use designations and associated temperature criteria that are contained in the revised 2003 Water Quality Standards.

Under the Clean Water Act EPA must ensure that the State’s revised water quality standards are protective of aquatic life uses. Additionally, EPA’s review must ensure that its approval does not jeopardize listed species under the Endangered Species Act. As part of its review, EPA analyzed available fish-use information to determine if Washington’s aquatic life use designations and associated temperature criteria were protective of in-stream fish use.

As a result of its review, EPA is disapproving the aquatic life use designation and associated temperature criterion for specific water bodies. Based on its analysis of the fish-use information, EPA has concluded that some water bodies have the incorrect aquatic life use designation, and some water bodies have temperature criteria that are not protective of the fish uses in the streams. The specific water body segments that EPA is disapproving can be viewed on the GIS maps contained in Appendix A GIS Maps Depicting EPA’s Disapproval Action.

The information contained on this website provides the regulatory and scientific basis of EPA’s disapproval action and the specified changes needed to the 2003 Water Quality Standards. Below are links to EPA’s documents.

Key Documents

Related Websites
Contacts for Further Information

John Palmer, ESA/CWA Senior Policy Advisor, (206) 553-6521, palmer.john@epa.gov
Kathleen Collins, WA WQS Coordinator, (206) 553-2108, collins.kathleen@epa.gov


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URL: http://yosemite.epa.gov/R10/WATER.NSF/Water+Quality+Standards/WA+WQS+EPA+Disapproval

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