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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Story Maps: Sediment Quality in Puget Sound

This series of colorful, interactive story maps describes the work of our Marine Sediment Monitoring Team. These scientists conduct long-term monitoring to assess and determine change over time in the condition of Puget Sound sediments and the animals that live in them.

https://ecology.wa.gov/sediment-story-map

NDZ supplemental letter requested by EPA

This is the letter requested of Ecology regarding the NDZ petition.

https://ecology.wa.gov/epalettervesselpumpoutavailabilityoct2016-pdf

Publication index: Salish Sea Model

List of links to documents and posters about the Salish Sea Model

https://ecology.wa.gov/salish-sea-model

Puget Sound Tide Model

A research tool programmed in Python by David Finlayson for predicting the tides of the Sound. The model was originally developed by Lavelle et al. (1988) at NOAA PMEL and subsequently updated by H. Mofjeld to include the full suite of standard tidal constituents.

https://ecology.wa.gov/puget-sound-tide-model-zip

Publication index: Budd Inlet

List of links to documents and posters related to water quality in Budd Inlet

https://ecology.wa.gov/budd-inlet

Puget Sound Nutrient General Permit

We have issued the first Nutrient General Permit for WWTPs that discharge to Puget Sound.

https://ecology.wa.gov/regulations-permits/permits-certifications/nutrient-permit

Matheson Tri-Gas, Anacortes

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

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

Puget Sound Energy Ferndale Generating Station

We regulate water and hazardous waste at the PSE Ferndale electricity cogeneration station.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/puget-sound-energy-ferndale-generating-station

Tesoro Logistics Anacortes Facility

We regulate water and hazardous waste at the Tesoro Logistics operations in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/tesoro-logistics-anacortes

U.S. Oil Refinery

We regulate water and hazardous waste at the U.S. Oil and Refining Co. oil refinery in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/us-oil-refining

Equivalent stormwater manuals for municipal stormwater permits

We provide information for municipal stormwater permittees about equivalent stormwater manuals for Phase I and both the Eastern and Western Washington Phase II municipal stormwater permits.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/equivalent-stormwater-manuals-for-municipal-stormw

SEPA Supplemental Orca Checklist Guidance

This guidance helps applicants complete the SEPA Supplemental Orca Checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-supplemental-orca-checklist-guidanc

Publication index: Puget Sound and Salish Sea

List of links to documents related to Puget Sound and the Salish Sea

https://ecology.wa.gov/puget-sound-and-salish-sea

BP Refinery

We regulate water, hazardous waste, and cleanup activities at the BP Cherry Point Refinery in Blaine.

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

Shellfish aquaculture 401 certification

We modified our certification process for shellfish growers because of new federal requirements.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/shellfish-aquaculture

Sand & Gravel Permit guidance

Guidance to implement your Sand & Gravel General Permit.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/sand-and-gravel-permit-guidance

HF Sinclair Puget Sound Refinery

We regulate water and hazardous waste activities at the HF Sinclair Puget Sound Refinery in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/hf-sinclair-puget-sound-refinery

McKinley Paper Company

We regulate water and hazardous waste at the McKinley Paper Co. mill in Port Angeles.

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

Port Townsend Paper

We regulate air, water, and hazardous waste at the Port Townsend Paper Corp. pulp and paper mill

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/port-townsend-paper

SeaPort Sound Terminal

We regulate water and hazardous waste activities at the SeaPort Sound Terminal in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/seaport-sound-terminal