Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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Baffle Funtional Equivenlancy Letter

Letter showing Baffles are functionally equivenant.

https://ecology.wa.gov/aflbafflefel

SEPA DNS and request for scope (WAC 173-201A) 9/30/14

This is teh SEPA DNS and request for scope for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/sepa-dns-and-request-for-scope-wac-173-201a-9-30

Preliminary Draft Rule Language (WAC 173-201A) 06/10/20

Preliminary draft rule language for amendments to chapter 173-201A WAC, for PCB Variances on the Spokane River.

https://ecology.wa.gov/preliminary-draft-rule-language-wac-173-201a-06

Rulemaking Announcement (WAC 173-201A) 10/27/20

This is a rulemaking announcement (CR-101) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-announcement-wac-173-201a-10-27-20

CR101 Notice to Interested Parties (WAC 173-224)

This is the notice that was mailed to all permitees.

https://ecology.wa.gov/cr101-notice-to-interested-parties

Rulemaking Announcement (WAC 173-224) 11/09/20

This is a rulemaking announcement (CR-101) for WAC 173-224 Water Quality Fees

https://ecology.wa.gov/rulemaking-announcement-wac-173-224-11-09-20

Preliminary Draft State Technical Support Document (WAC 173-201A) 06/10/20

This preliminary draft document provides background and technical information for PCB Variances on the Spokane River. Chapter 173-201A WAC.

https://ecology.wa.gov/preliminary-draft-state-technical-support-document

Rulemaking Proposal (WAC 173-201A) 10/18/21

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-10-18-21

Rulemaking Proposal (WAC 173-201A) 3/24/21

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-3-24-21

Rulemaking proposed language (WAC 173-201A) 02/01/16

This is proposed rule language for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-201a-02-01

Approval Letter

Letter showing Brentwood StormTank for is approved for use in stormwater runoff filtration.

https://ecology.wa.gov/approvalletter

Richland Public Meeting Agenda

Public Meeting Agenda for Stormwater Manual Update

https://ecology.wa.gov/ewa-manual-public-meeting-agenda-6-26-18

CR-102 Form AO# 16-07

This is a rulemaking proposal (CR-102) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/cr-102-form-wac-173-201a-07-17-18

Rulemaking Announcement (WAC 173-201A) 05/08/19

This is a rulemaking announcement (CR-101) for WAC 173-201A

https://ecology.wa.gov/rulemaking-announcement-wac-173-201a-05-08-19

Permit Denial Millennium Bulk Terminals

A water certification denial detailing the reasons why the Washington Department of Ecology made its decision.

https://ecology.wa.gov/permit-denial-millennium-bulk-terminals

Draft Chapter 173-230 rule language for informal comment period

This is the draft rule language that is open for informal comment.

https://ecology.wa.gov/draft-chapter-173-230-rule-language-for-informal-c

Draft fee schedule for informal comment period

This is the draft fee schedule that is open for informal comment.

https://ecology.wa.gov/draft-fee-schedule-for-informal-comment-period

BioMod for Stormwater Runoff Filtration

A letter from Ecology stating this technology is equivalent to a bioretention planter box.

https://ecology.wa.gov/biomod

Rulemaking Announcement (WAC 173-201A) 06/12/19

This is a rulemaking announcement (CR-101) for WAC 173-201A Variances

https://ecology.wa.gov/rulemaking-announcement-wac-173-201a-06-12-19

Rulemaking Proposal (WAC 173-201A) 07/30/19

This is a rulemaking proposal (CR-102) for WAC 173-201A multiple revisions to WQ Standards

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-07-30-19