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.
Received through January 18, 2012: Comments on Ecology's Fish Consumption Rates Technical Support Document (Version 1)
Comments received through January 18, 2012, in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).
https://ecology.wa.gov/20120118fcrcommentsforversion1
Received through January 18, 2012: Emailed form comments in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).
Emailed (form) comments received through January 18, 2012, in response to Ecology's Fish Consumption Rates Technical Support Document (Version 1).
https://ecology.wa.gov/20120118fcrformlettercommentsforversion1
July 16, 2012: Ecology's approach to fish consumption standards in Washington state
Former Ecology Director Ted Sturdevant's 2012 transmittal letter announcing Ecology's approach to fish consumption standards in Washington state.
https://ecology.wa.gov/20120716sturdevantfcrapproachtostandards
Rulemaking Announcement (WAC 173-340) 12/20/18
This is a rulemaking announcement (CR-101) for WAC 173-340, Model Toxics Control Act - Cleanup
https://ecology.wa.gov/rulemaking-announcement-wac-173-340-12-20-18
Rulemaking Proposal (WAC 173-340) 02/15/23
This is a rulemaking proposal (CR-102) for WAC 173-340, Model Toxics Control Act (MTCA) Cleanup Regulations.
https://ecology.wa.gov/rulemaking-proposal-wac-173-340-02-15-23
Rulemaking proposed language (WAC 173-340) 02/15/23
This is proposed rule language for WAC 173-340, Model Toxics Control Act (MTCA) Cleanup Regulations.
https://ecology.wa.gov/rulemaking-proposed-language-wac-173-340-02-15-23
Rulemaking Adoption Notice (WAC 173-360; WAC 173-360A) 07/17/18
This is the rulemaking adoption (CR-103) WAC 173-360; WAC 173-360A, Underground Storage Tank (UST) Regulations.
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-360;-wac-173-3
Rulemaking Adoption Notice (WAC 173-360; WAC 173-360A) 07/18/2018
This is a rulemaking adoption (CR-103) for WAC 173-360A, Underground Storage Tank Regulations.
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-360;-wac-1-1
Rulemaking Adoption Notice (WAC 173-340) 08/23/23
This is a rulemaking adoption (CR-103) for WAC 173-340, Model Toxics Control Act (MTCA) Cleanup Regulations.
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-340-08-23-23
Northeast West Plains PFAS March 2024 well sampling results meeting slides
Download the slides for the 6/6/24 NE West Plains drinking water sampling results meeting
https://ecology.wa.gov/west-plains-pfas-sampling-results-slides
Common cleanup situations for homeowners and small businesses
Learn about common cleanup situations likely to affect home and small business owners.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/common-cleanup-situations-for-homeowners-small-b
FAQ: Evaluate options to clean up homes and small businesses
These FAQs help homeowners and small businesses evaluate cleanup options and complete cleanup work.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/evaluation-cleanup-for-homeowners-small-busine
FAQ: Investigate and report toxic releases
FAQs to help homeowners and small businesses investigate and report toxic releases.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/investigating-reporting-toxic-releases
Records search checklist
Before buying property, use the records search checklist for due diligence and to know past uses.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-residential-cleanups/records-search-checklist
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
Underground storage tank closures
Important information about closing your underground storage tanks.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/ust-owner-and-operator-resources/tank-closures
Cleanup Levels and Risk Calculation (CLARC)
CLARC's resources help you set contaminated site cleanup levels that comply with Washington law.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc
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
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