Research & Data

Use this portal to filter and search for all of our scientific information.

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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.

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Research & Data

Use this portal to filter and search for all of our scientific information.

Research & Data icon

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.

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Rulemaking Adoption Notice (WAC 173-187) 6/14/24
This is a rulemaking adoption (CR-103) for WAC 173-187 Financial Responsibility
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-187-6-14-24
3 Year Worst Case Drill Outlook
A list, by year, of the plan holders that are expected to hold a worst-case drill.
https://ecology.wa.gov/3-year-worst-case-drill-outlook
Rulemaking Announcement (Tug Escort Rulemaking - Chapter 363-116 WAC) 02/22/23
This is a rulemaking announcement (CR-101) for Tug Escort Rulemaking (Chapter 363-116 WAC)
https://ecology.wa.gov/rulemaking-announcement-tug-escort-rulemaking-chap
Webinar #1 Slides
Slides for Webinar #1
https://ecology.wa.gov/webinar-1-slides
Webinar #2 Slides
Slides for Webinar #2
https://ecology.wa.gov/webinar-2-slides
EIS Scoping Presentation Slides
Slides from the EIS Scoping Presentation
https://ecology.wa.gov/eis-scoping-presentation-slides
Workshop #1 Slides
Slides for Workshop #1
https://ecology.wa.gov/workshop-1-slides
Workshop #1 Slides_May 24, 2024
Workshop #1 Slides for May 24, 2024
https://ecology.wa.gov/workshop-1-slides_may-24-2024
Workshop #2 Slides
Slides for Workshop #2
https://ecology.wa.gov/workshop-2-slides
Meeting #2 Slides
Slides for Meeting #2
https://ecology.wa.gov/meeting-2-slides
Workshop #3 Slides
Slides for Workshop #3
https://ecology.wa.gov/workshop-3-slides
Meeting #3 Slides
Slides for Meeting #3
https://ecology.wa.gov/meeting-3-slides
Workshop #4 Slides
Slides for Workshop #4
https://ecology.wa.gov/workshop-4-slides
Workshop #4 Slides_Dec. 7, 2024
Slides for Workshop #4 on Dec. 7, 2024
https://ecology.wa.gov/workshop-4-slides_dec-7-2024
Workshop #5 Slides
Slides for Workshop #5
https://ecology.wa.gov/workshop-5-slides
Workshop #6 Slides
Slides for Workshop #6
https://ecology.wa.gov/workshop-6-slides
Workshop #7 Slides
Slides for Workshop #7
https://ecology.wa.gov/workshop-7-slides
Workshop #7 Slides_May 14, 2024
Slides for Workshop #7 on May 14, 2024
https://ecology.wa.gov/workshop-7-slides_may-14-2024
Workshop #8 Slides
Slides for Workshop #8
https://ecology.wa.gov/workshop-8-slides
Workshop #8 Slides_Tribal workshop
Slides for Workshop #8_Tribal workshop
https://ecology.wa.gov/workshop-8-slides_tribal-workshop
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