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.
Chapter 173-187 WAC
This is the rulemaking page for 173-187 WAC.
https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-187
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
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
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
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
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
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
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
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
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
Northwest Alloys, Addy
We regulate water and hazardous waste at Alcoa's Northwest Alloys in Addy.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/northwest-alloys-addy
Phillips 66 Refinery
We regulate water and hazardous waste activities at the Phillips 66 refinery in Ferndale.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/phillips-66-refinery
Tesoro Refinery
We regulate water, hazardous waste, and cleanup at Tesoro Refining & Marketing Company in Anacortes.
https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/tesoro-refinery
Solvent-contaminated wipes
Follow these best management practices for solvent-contaminated wipes.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solvent-wipes
Cruise ships in Washington waters
Formal agreement with cruise ship companies helps prevent pollution and protect marine waters.
https://ecology.wa.gov/regulations-permits/permits-certifications/cruise-ship-memorandum-of-agreement-mou
Contained-in policy for contaminated soil and groundwater
Learn how to reduce cleanup costs by requesting approval under our contained-in policy.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contained-in-determinations
Fish consumption rate: Technical support document
This 2013 technical support document estimates how much fish Washington residents are eating.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/fish-consumption-rates-technical-support
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