Research & Data
Use this portal to filter and search for all of our scientific information.
Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.
Bonneville Power Administration TSD permit (PDF)
A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.
https://ecology.wa.gov/bonneville-power-administration-tsd-permit
Allowed-banned
This is a PDF table showing details of bags that are allowed and bags that are banned in Washington.
https://ecology.wa.gov/allowed-banned-bags
PCBs in building materials
Learn which building materials could contain PCBs.
https://ecology.wa.gov/interactive-doc-pcbs-in-building-materials
Certificate of compliance 2023
Manufacturers that produce food packaging sold in Washington must fill out a Certificate of Compliance to show they meet the PFAS in food packaging rules
https://ecology.wa.gov/certificate-of-compliance-2023
2020 Dangerous Waste Regulations
Washington State's Dangerous Waste regulations, Chapter 173-303
https://ecology.wa.gov/2019-dw-regs
Rulemaking Announcement (WAC 173-305) 09/14/22
This is a rulemaking announcement (CR-101) for WAC 173-305 Hazardous Waste Planning Fee
https://ecology.wa.gov/rulemaking-announcement-wac-173-305-09-14-22
Guidance on enforcement of lead, cadmium, and phthalate limits
Guidance on enforcement of lead, cadmium, and phthalate limits for the Children's Safe Product Act
https://ecology.wa.gov/guidance-on-enforcement-of-lead-cadmium-and-phth
Biosolids Storage Construction Approval - North Ranch
Ecology final approval letter for construction of biosolids storage facility.
https://ecology.wa.gov/northranchbsstorageconstructionapproval
Big Hanaford treatment variance
Hazardous waste treatment variance at Fire Mountain Farm's Big Hanaford site
https://ecology.wa.gov/emerald-kalama-treatment-variance-big-hanaford
Burnt Ridge treatment variance
Hazardous waste treatment variance at Fire Mountain Farm's Burnt Ridge site
https://ecology.wa.gov/emerald-kalama-treatment-variance-burnt-ridge
Newaukum Prairie treatment variance
Hazardous waste treatment variance at Fire Mountain Farm's Newaukum Prairie site
https://ecology.wa.gov/emerald-kalama-treatment-variance-newaukum-prairie
Monthly dangerous waste generation limits
Quantity exclusion limits (QEL) to determine monthly dangerous waste generator category
https://ecology.wa.gov/monthly-generation-limits-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
Adopted rule language (WAC 173-337) 05/31/23
This is adopted rule language for WAC 173-337 Safer Products Restrictions and Reporting
https://ecology.wa.gov/asset-collections-doc-assets-rulemaking-hwtr-wac173-337_-21-01-cr-103-adopted-rule-language-wac-173
Pollution Prevention Planning Hazardous Substances List
Refer to this chemical list when doing your pollution prevention plan. Updated on May 19, 2017.
https://ecology.wa.gov/washington-state-pollution-prevention-planning-haz
PCB pathways in building materials
Text version of PCB pathways in building materials.
https://ecology.wa.gov/interactive-doc-pcb-pathways
WSR 22-19-037
This is the CR-101 rescinded notice for WAC 173-305.
https://ecology.wa.gov/wsr-22-19-037
Rulemaking Announcement (WAC 173-305) 11/22/23
This is a rulemaking announcement (CR-101) for WAC 173-305 Hazardous Waste Planning Fee
https://ecology.wa.gov/rulemaking-announcement-wac-173-305-11-22-23
Certificate of compliance: PFAS in food packaging 2024
This is the certificate of compliance for food packaging manufacturers for items regulated as of May 2024.
https://ecology.wa.gov/certificate-of-compliance-2024
Hazardous Waste Facility Search Tool
Use this tool to access public records from regulated dangerous waste sites in Washington. This data comes from TurboWaste, Washington’s dangerous waste reporting tool.
https://ecology.wa.gov/hazardous-waste-facility-search-tool
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