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.
September 22, 2021 Notes - Oil Outflow Module
Notes for the September 22, 2021, webinar
https://ecology.wa.gov/september-22-2021-notes-oil-outflow-module
September 22, 2021 Slides - Oil Outflow Module
Presentation from September 22, 2021, webinar
https://ecology.wa.gov/september-22-2021-slides-oil-outflow-module
SEPAMDNSTemplateWord
SEPA MDNS Template for Microsoft Word
https://ecology.wa.gov/sepa-mdns-template-word
SEPANoticeofActionTakenPDF
SEPA Notice of Action Taken PDF Version
https://ecology.wa.gov/sepa-notice-of-action-taken-pdf-version
SEPANoticeofActionTakenWord
SEPA Notice of Action Taken Word Version
https://ecology.wa.gov/sepa-notice-of-action-taken-word-version
SEPAWithdrawalTemplatePDF
SEPA Notice of Withdrawal PDF Version
https://ecology.wa.gov/sepa-notice-of-withdrawal-pdf-version
SEPAWithdrawalTemplateWord
SEPA Notice of Withdrawal Template Word Version
https://ecology.wa.gov/sepa-notice-of-withdrawal-template-word-version
SEPARevisedDNSTemplateWord
SEPA Revised DNS Template Word Version
https://ecology.wa.gov/sepa-revised-dns-template-word-version
SEPA Supplemental Orca Checklist
The SEPA supplemental orca checklist helps guide lead agencies in determining whether there are vessel traffic impacts to the Southern Resident killer whale (Orcinus orca) population in Washington state marine waters.
https://ecology.wa.gov/sepa-supplemental-orca-checklist-doc
SEPA Supplemental Orca Checklist
The SEPA supplemental orca checklist helps guide lead agencies in determining whether there are vessel traffic impacts to the Southern Resident killer whale (Orcinus orca) population in Washington state marine waters.
https://ecology.wa.gov/sepa-supplemental-orca-checklist-pdf
September 16, 2020 Webinar Slides - Vessel Movement Module
Webinar slides for September 16, 2020, meeting
https://ecology.wa.gov/september-16-2020-webinar-slides-vessel-movement
SEPA PowerPoint training presentation
SEPA Training Presentation December 2017
https://ecology.wa.gov/sepa-training-presentation-december-2017
SEPA DS and Scoping Notice Template PDF Version
SEPA Determination of Significance and Scoping Notice Template Word Version
https://ecology.wa.gov/sepadstemplatepdf
September 19, 2020 - Vessel Movement Module Webinar
Summary of questions and answers from September 16, 2020, webinar
https://ecology.wa.gov/september-19-2020-vessel-movement-module-webinar
SEPA DS and Scoping Notice Template Word Version
SEPA Determination of Significance and Scoping Notice Template Word Version
https://ecology.wa.gov/sepadstemplateword
SEPA's Flexible Tools for Project level Review
Description of Planning level SEPA reviews that provide streamlined project-level SEPA
https://ecology.wa.gov/sepa-s-flexible-tools-for-project-level-review
SEPA OTS-4081.1 for filing
Under RCW 43.21C.440, GMA counties/cities may designate a planned action.
https://ecology.wa.gov/sepa-ots-4081-1-for-filing
September 29, 2023 Slides - Informal Transboundary Caucus Presentation: ERTV Analysis Results
Presentation from September 29, 2023, webinar
https://ecology.wa.gov/september-29-2023-slides-informal-transboundary-caucus-presentation-ertv-analysis-results
SPWA Sept 25 webinar materials
This is the PowerPoint presentation for the webinar conducted on Sept. 25, 2024 for WAC 173-339.
https://ecology.wa.gov/sept-25-webinar-materials
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