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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Cleanup Rule comments received from the public, Ecology staff, and AGO (2009-2018)

This July 2019 document compiles the Cleanup Rule comments received from the public, Ecology staff and Office of the Attorney General from 2009 through 2018.

https://ecology.wa.gov/cleanup-rule-comments-received-2009-2018-july-201

Washington State Brownfields Conference Agenda

Download the agenda for the 2019 Washington State Brownfields Conference.

https://ecology.wa.gov/pdf-wa-brownfields-conference-2019-agenda

Occidental Storymap Plain Text Accessible

Plain text accessible PDF of the Occidental storymap

https://ecology.wa.gov/occidental-storymap-plain-text

Emerald Kalama and Fire Mountain Farms Hazardous Waste Petitions Fact Sheet

Decision to approve hazardous waste delisting and treatment variance petitions

https://ecology.wa.gov/hazardous-waste-petition-fact-sheet

2021 Brownfield Redevelopment Trust Fund Account report

A legislative report in response to requirements of Washington's environmental cleanup law, the Model Toxics Control Act.

https://ecology.wa.gov/2021-brownfield-redevelopment-trust-fund-account-legislative-report

2023 PPG Awards

This is Ecology's list of 2023 – 2025 Public Participation Grants awards.

https://ecology.wa.gov/2023-awards

2019 Brownfield Redevelopment Trust Fund Account

Ecology's 2019 report to the legislature on redevelopment activities funded by the Brownfield Redevelopment Trust Fund (BRTF) Account.

https://ecology.wa.gov/2019-brownfield-redevelopment-trust-fund-account-legislative-report

2023 Brownfield Redevelopment Trust Fund Account

Report to the legislature on activities funded by the Brownfield Redevelopment Trust Fund Account.

https://ecology.wa.gov/2023-brownfield-redevelopment-trust-fund-account-legislative-report

Northeast West Plains PFAS in drinking water sampling results map

The EPA created this map to summarize where samples were taken without showing private well locations.

https://ecology.wa.gov/west-plains-pfas-sampling-results-map

Successful no further actions

Sites cleaned up using a model remedy might achieve "no further action" status faster.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies/no-further-actions

Financial assurance for cleanup operations

Financial assurance is a way to ensure that companies can pay for cleanup from their operations.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/financial-assurance

Eagle US 2, Longview

We regulate water and hazardous waste at the Axiall Corporation's Eagle US 2 plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/eagle-us-2-llc

Pacific Functional Fluids

We regulate wastewater and hazardous waste activities at Pacific Functional Fluids in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/pacific-functional-fluids

Northwest Alloys, Longview

We regulate water, hazardous waste and cleanup activities at Northwest Alloys in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/northwest-alloys-longview

Chapter 173-360A WAC

This is the rulemaking page for Chapter 173-360A WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-360a

Cleaning up contamination with model remedies

Model remedies are ways to clean up routine, low-risk contaminated sites under MTCA.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies

Technical resources for sediment cleanups

Access our technical resources to help support your sediment cleanup decisions.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/sediment-cleanup-resources

Contaminated Site Register & cleanup data

Get information on contaminated site cleanups through our newsletter and database.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/site-register-lists-and-data

Terrestrial Ecological Evaluations

Terrestrial Ecological Evaluations (TEEs) identify and protect native plants and animals at sites.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/terrestrial-ecological-evaluation

Hasa, Longview

We regulate water and hazardous waste activities at the Hasa bleach repackaging plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/hasa