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
Bonneville Power Administration TSD permit
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
69 results
1 - 20 of 69