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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Draft Citation List (WAC 173-201A) 07/17/08

This is a draft citation list for the proposed updates to Chapter 173-201A WAC, Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/draft-citation-list-wac-173-201a-07-17-08

Richland Public Meeting Parking Map

Map of parking area for public meeting

https://ecology.wa.gov/ewa-manual-public-meeting-parking-map

Rulemaking-Adoption-Notice-(WAC-173-228)-04-09-18

This is the rule making adoption (CR-103) for WAC 173-228 No discharge zone

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-228-04-09-18

Rulemaking proposed language (WAC 173-201A) 01/08/15

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-01-08

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

This is the 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-3-24-2

Rulemaking Proposal (WAC 173-224) 03/16/21

This is a rulemaking proposal (CR-102) for WAC 173-224 Water Quality Permit Fees

https://ecology.wa.gov/rulemaking-proposal-wac-173-224-03-16-21

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

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-10-18-21

Rulemaking proposed language (WAC 173-224) 03/16/21

This is proposed rule language for (WAC 173-224) Water Quality Permit Fee

https://ecology.wa.gov/rulemaking-proposed-language-wac-173-224-03-16-2

Hydro Battery Pearl Hill Water Quality Certification application & public notice

Application for State of Washington water quality certification for Hydro Battery Pearl Hill.

https://ecology.wa.gov/hydro-battery-pearl-hill-wqc-application-public

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

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-02-01-16

Silt Fence BMP

Best managment practice for Silt Fence.

https://ecology.wa.gov/bmpc233siltfencefe

Eastern WA Manual Update Spring Newsletter

Spring 2018 Newsletter on the EWA Manual Update

https://ecology.wa.gov/ewa-manual-spring-newsletter

Workshop Agenda Nov. 14

Agenda for the Nov. 14 Workshop on PCB Variances for Spokane River Dischargers

https://ecology.wa.gov/workshop-agenda-nov-14

TDG Hearing Presentation 9/16/19

Presentation at public hearing in Vancouver, WA on proposed revisions to WAC 173-201A

https://ecology.wa.gov/tdg-hearing-presentation

NoticetoInterestedParties

This is the notice to interested parties that we sent out to all interested stakeholders.

https://ecology.wa.gov/noticetointerestedparties

Adopted Rule language (WAC 173-201A) 1/23/19

This is the adopted rule language for Chapter 173-201A WAC (recreation use criteria).

https://ecology.wa.gov/ots-adopted-rule-language

AO16-07 EPA Approval Letter

This is the letter from the EPA that states that the changes still follow the Clean Water Act and are approved.

https://ecology.wa.gov/epa-approval-letter

Rulemaking Adoption Notice (WAC 173-230) 07/10/19

This is a rulemaking adoption (CR-103) for WAC 173-230 Certification of Wastewater Operators

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-230-07-10-19

Formal comment letter to EPA about the Clean Water Act Section 401 rule proposal

These are Ecology's official comments submitted to EPA on the proposed changes to the Clean Water Act Section 401.

https://ecology.wa.gov/oct21-epa-letter

Webinar Presentation July 10 2018

Presentation slides for July 10, 2018 Webinar

https://ecology.wa.gov/ewa-public-meeting-webinar-slides-7-10-18