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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Bonneville Power Administration TSD permit (PDF)

A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.

https://ecology.wa.gov/bonneville-power-administration-tsd-permit

UIC Class V Well Definitions

This document explains the Class V well definitions and lists the Washington well code and the EPA well code.

https://ecology.wa.gov/class-v-well-definitions

Biosolids Report Instructions FAQ

These are instructions for biosolids managers in Washington for submitting their facility's annual report.

https://ecology.wa.gov/biosolids-report-instructions-faq

Adopted rule language (WAC 173-555) 01/27/15

This is adopted rule language for WAC 173-555 Water Resources Program in the Little Spokane River basin, WRIA 55.

https://ecology.wa.gov/adopted-rule-language-wac-173-555-01-27-15

Adopted rule language (WAC 173-455) 3-3-23

This is adopted rule language for WAC 173-445, Air Quality Fee Rule.

https://ecology.wa.gov/adopted-rule-language-wac-173-455-3-3-23

Adopted rule language (WAC 173-557) 01/27/15

This is adopted rule language for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer.

https://ecology.wa.gov/adopted-rule-language-wac-173-557-01-27-15

Adoption Notice - Focus sheet

This is a rulemaking adoption focus sheet for WAC 173-230 AO 18-02 Wastewater Operator Certification

https://ecology.wa.gov/announcement-focus-sheet

G14 Certification Statement

Certification Statement and Signature Page required for permit submittals

https://ecology.wa.gov/cafo-certification-sheet

Order Remanding 2020 Section 401 Rule with Vacatur

Order from United State District Court Northern District of California that remands and vacates the 2020 Section 401 rule under the Clean Water Act.

https://ecology.wa.gov/cwa-401-order-remanding-with-vacatur

Municipal Stormwater permit Annual report Walk-through

Municipal Stormwater permit step-by-step guidance for submitting your annual report.

https://ecology.wa.gov/annualreportwalkthrough_2017

Discharge Monitoring and Reporting schedule

Annual Schedule of Discharge Monitoring and Reporting for Boatyard general permit

https://ecology.wa.gov/dmrschedule

Attachment 1-I - Effluent characterization requirements

Effluent characterization requirements for industrial NPDES permit applications

https://ecology.wa.gov/att1-ind_per_app

Draft Citation List (WAC 173-201A) 01/08/15

This is a draft citation list for WAC 173-201A Water quality standards for surface waters of the state of Washington.

https://ecology.wa.gov/draft-citation-list-wac-173-201a-01-08-15

Assessment of Areal Recharge (WAC 173-557; 173-555) 01/27/15

Assessment of Areal Recharge to the Spokane Valley-Rathdrum Prairie Aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, United States Geological Survey, Scientific Investigations Report 2007–5038 WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/assessment-of-areal-recharge-wac-173-557;-173-555

Compilation of Geologic, Hydrologic, and Ground-Water Flow Modeling (WAC 173-557; 173-555) 01/27/15

Compilation of Geologic, Hydrologic, and Ground-Water Flow Modeling Information for the Spokane Valley—Rathdrum Prairie Aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, Idaho, United States Geological Survey, WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/compilation-of-geologic-hydrologic-and-ground-wa

BMP Effectiveness Database

Literature review of BMP Effectiveness conducted to help choose effectiveness study priorities.

https://ecology.wa.gov/bmp_effectiveness_database

Construction Stormwater General Permit DMR poster

Facilities with NPDES or State Waste Discharge permits are required to monitor the discharge from their facility and to submit reports to Ecology about this discharge. These reports are known as DMRs. The report requirements differ by permit type and water body.

https://ecology.wa.gov/dmrflyer

Guide to Changes in the 2016 Sand & Gravel General Permit

This guide provides information on what has changed between the 2011 and 2016 Sand & Gravel General Permit. The guide is setup by permittee categories and NAICS / Ecology Codes. Refer to the appropriate categories below for your business (more than one category may apply to your operations). This document is only intended as a guide. Refer to the permit for more information.

https://ecology.wa.gov/changesguide2016

Adopted rule language (WAC 173-50) 09/01/23

This is adopted rule language for WAC 173-50 Accreditation of Environmental Laboratories.

https://ecology.wa.gov/adopted-rule-language-wac-173-50-09-01-23