May. 9, 2019 Ecology begins rulemaking process

Revising the surface water quality standards

Ecology is beginning a rulemaking for multiple revisions to Chapter 173-201A WAC, Water Quality Standards for Surface Waters of the State of Washington (SWQS).

This rulemaking will consider:

· Amending the numeric criteria for total dissolved gas in the Snake and Columbia rivers.

· Amending specific sections of the rule to meet legal obligations in a 2018 Stipulated Order of Dismissal.

· Aligning the rule with the Washington State Department of Health (DOH) Shellfish Program.

· Clarifying the descriptions of marine water aquatic life use designations.

More information on the rulemaking and links:

· Read the CR-101 for details on this rulemaking.

· Browse the Water Quality Revisions rulemaking web page.

· Join our ListServ to receive news and information about this rulemaking, and other water quality topics.

SEPA Scoping Comment Period (May 8 – May 29)

Ecology is holding a comment period from May 8 through May 29 on the scope of the Environmental Impact Statement (EIS) for this rulemaking. The EIS will evaluate the potential environmental impacts of potential amendments and we will use the EIS to guide our development of proposed rule language.

· Comment on the scope of the EIS


Susan Braley

WA State Dept. of Ecology


Phone: 360.407.6414