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.
Cleanup Rule comments received from the public, Ecology staff, and AGO (2009-2018)
This July 2019 document compiles the Cleanup Rule comments received from the public, Ecology staff and Office of the Attorney General from 2009 through 2018.
https://ecology.wa.gov/cleanup-rule-comments-received-2009-2018-july-201
Washington State Brownfields Conference Agenda
Download the agenda for the 2019 Washington State Brownfields Conference.
https://ecology.wa.gov/pdf-wa-brownfields-conference-2019-agenda
Worldwide Response Resource List (WRRL) Database info-graphic text
Info-graphic text for the Worldwide Response Resource List (WRRL) screenshot
https://ecology.wa.gov/wrrl-database-info-graphic-text
Worst Case Drill Cycle
Find the schedule of drills for each plan holder (drill location), drill cycle, date of next Worst Case Drill, and location of last drill.
https://ecology.wa.gov/worst-case-drill-cycle
Occidental Storymap Plain Text Accessible
Plain text accessible PDF of the Occidental storymap
https://ecology.wa.gov/occidental-storymap-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
ZB Barge Incident press release
Press release for the ZB Barge Incident
https://ecology.wa.gov/zb-barge-incident
2021 Brownfield Redevelopment Trust Fund Account report
A legislative report in response to requirements of Washington's environmental cleanup law, the Model Toxics Control Act.
https://ecology.wa.gov/2021-brownfield-redevelopment-trust-fund-account-legislative-report
2023 PPG Awards
This is Ecology's list of 2023 – 2025 Public Participation Grants awards.
https://ecology.wa.gov/2023-awards
2019 Brownfield Redevelopment Trust Fund Account
Ecology's 2019 report to the legislature on redevelopment activities funded by the Brownfield Redevelopment Trust Fund (BRTF) Account.
https://ecology.wa.gov/2019-brownfield-redevelopment-trust-fund-account-legislative-report
2023 Brownfield Redevelopment Trust Fund Account
Report to the legislature on activities funded by the Brownfield Redevelopment Trust Fund Account.
https://ecology.wa.gov/2023-brownfield-redevelopment-trust-fund-account-legislative-report
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
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
Workshop #8 Slides_Tribal workshop
Slides for Workshop #8_Tribal workshop
https://ecology.wa.gov/workshop-8-slides_tribal-workshop
Lower Snohomish River Tributaries effectiveness monitoring
We're studying bacteria pollution in tributaries to the Lower Snohomish River.
https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/lower-snohomish-river-tributaries
Aladdin Plating
We monitor groundwater for legacy plating chemicals at the former Aladdin Plating Co. site in Tacoma.
https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/aladdin-plating
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