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.

See more about this collection...

UST-closure-packet

Instructions for closing an Underground Storage Tank

https://ecology.wa.gov/ust-closure-packet

Vapor Intrusion for TCE

EPA's Region 9 memo Vapor Intrusion response action levels

https://ecology.wa.gov/vi-tce-region-9-memo

Vapor Intrusion guidance for TCE

EPA's Region 10 memo Vapor Intrusion toxicity

https://ecology.wa.gov/vi-tce-region-10-memo

Statement of Basis for BCAA permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 3: BENTON CLEAN AIR AGENCY PERMIT

https://ecology.wa.gov/statement-of-basis-for-bcaa-permitting-conditions

Statement of Basis for Health permitting conditions

STATEMENT OF BASIS HANFORD SITE AIR OPERATING PERMIT NO. 00-05-006 RENEWAL 3 ATTACHMENT 2: DEPARTMENT OF HEALTH LICENSE

https://ecology.wa.gov/statement-of-basis-for-health-permitting-condition

Supporting Documents - Department of Health License Files

Supporting Documents from the Department of Health License Files

https://ecology.wa.gov/supporting-documents-department-of-health-licens

Supporting Documents - Ecology (PDF Portfolio)

Supporting Documents from Ecology

https://ecology.wa.gov/supporting-documents-ecology-pdf-portfolio

Transmittal Letter

Start of Public Comment Period for the Draft Hanford Site Air Operating Permit (AOP) Renewal 3

https://ecology.wa.gov/transmittal-letter-d05b7b46ed7eb953d4597627837c8259

Boatyard general permit SWPPP template

Example template of a Stormwater Pollution Prevention Plan (2012) This template was prepared by the Northwest Marine Trade Association (NMTA) for use by its boatyard members. NMTA has granted the Department of Ecology permission to make this form available to all interested parties.

https://ecology.wa.gov/swppptemplate

Boatyard general permit SWPPP Worksheets

Examples of Stormwater Pollution Plan Worksheets (2007)

https://ecology.wa.gov/swpppworksheets

Pharmaceutical waste regulations webinar

PDF version of the Pharmaceutical Waste Regulations webinar conducted by Ecology's health care team January 2021

https://ecology.wa.gov/webinar-pharmawaste-slides-2021

Heat pump & air conditioning return flow UIC wells

Groundwater circulated through a heat pump/air conditioning (HAC) system has to meet requirements.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/underground-injection-control-program/heat-pump-air-conditioning-return-flow-wells

Managing pharmaceutical waste

Learn how to manage waste pharmaceuticals properly to keep them out of the environment.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste

Pharmaceutical waste management options for eligible facilities

Facilities that meet certain criteria can use pharmaceutical waste management options.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/management-options

Frequently asked questions about pharmaceutical waste

Frequently asked questions about pharmaceutical waste and our answers.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/frequently-asked-questions

Recordkeeping

Learn what records your business must keep if you generate dangerous waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/recordkeeping

Approved sampling and analysis procedures

Approved laboratory analysis methods for cleaning up contaminated sites.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/sampling-and-analysis-procedures

Air Liquide Hydrogen Plant, Anacortes

We regulate water and hazardous waste activities at the Air Liquide hydrogen plant in Anacortes.

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

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

Mint Farm Electricity Cogeneration Facility

We regulate water and hazardous waste for PSE's Mint Farm electricity cogeneration facility.

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