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.
2015 Water Quality Financial Assistance Applications
Record of those who applied for Water Quality Financial Assistance in 2015
https://ecology.wa.gov/2015-water-quality-financial-assistance-applicatio
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
Previous Permit 2014 Fact Sheet
Water Treatment Plant 2014 previous permit fact sheet.
https://ecology.wa.gov/wtp-previous-fact-sheet
Ecology Water Quality Combined Funding Program Fiscal Year 2024 List of Applicants
List of applications that applied for Ecology Water Quality Combined Funding Program grants in Fiscal Year 2024
https://ecology.wa.gov/wqc-2023-list-of-applicants
Wastewater Training sign in sheet
This is for instructors to use as a means to document student attendance.
https://ecology.wa.gov/ww-training-sign-in-sheet
Wastewater Operator Certification WAC
This is the Washington Adminstration Code that governs how we certify operators. It also shows how plants are classified at the end of the document.
https://ecology.wa.gov/ww-wac
WSPA proposal (WAC 173-400) 01/01/19
This is Western States Petroleum Association's (WSPA) 1/19 proposed rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.
https://ecology.wa.gov/wspa-proposal-wac-173-400-01-01-19
Comments from the July 12, 2016, public hearing (written) (WAC 173-442; WAC 173-441) 7/12/16
Written comments from the July 12, 2016, public hearing.
https://ecology.wa.gov/written-comments-from-the-july-12-2016-public-hea
Written comments from the July 14, 2016, public hearing in Olympia (WAC 173-442; WAC 173-441)
Written comments from the July 14, 2016, public hearing.
https://ecology.wa.gov/written-comments-from-the-july-14-2016-public-hea
Water Quality Combined Funding Program - Recipient Training - Stormwater Session 2
For funding recipients of our Water Quality Combined Funding Program, this is the Stormwater project type part of the Recipient Training workshop
https://ecology.wa.gov/wqc-recipient-training-stormwater-session-2
Water Quality Combined Funding Program - Recipient Training - Stormwater Session 2
For funding recipients of our Water Quality Combined Funding Program, this is the Stormwater project type part of the Recipient Training workshop
https://ecology.wa.gov/wqc-recipient-training-stormwater-session-3
Water Quality Combined Funding Program Recipient Training - Wastewater Session 1
For funding recipients of our Water Quality Combined Funding Program, this is the Wastewater Facility project type part of the Recipient Training workshop
https://ecology.wa.gov/ecology-water-quality-combined-funding-program-5
Water Quality Combined Funding Program Recipient Training - Wastewater Session 2
For funding recipients of our Water Quality Combined Funding Program, this is the Wastewater Facility project type part of the Recipient Training workshop
https://ecology.wa.gov/wqc-recipient-training-wastewater-session-2
Water Quality Program Funding Recipient Training Announcement
Water Quality Program Funding Recipient Training Announcement - Calendar Year 2020
https://ecology.wa.gov/wqc-recipient-training-announcement
Water Quality Program Funding Recipient Training Announcement - Moses Lake
Water Quality Program Funding Recipient Training Announcement - Moses Lake location 2019.
https://ecology.wa.gov/wqc-recipient-training-info-moses-lake-2019
Western Washington Phase II Municipal Stormwater Permit Appendix 1
Appendix 1. Minimum Technical Requirements or New Development and Redevelopment
https://ecology.wa.gov/wwaphaseii-app1
Western Washington Phase II Municipal Stormwater Permit Appendix 2
Appendix 2. Total Maximum Daily Load Requirements
https://ecology.wa.gov/wwaphaseii-app2
Western Washington Municipal Stormwater Permits 2019 Permit extension guidance
Here we answer frequently asked questions about the Western Washington Municipal Stormwater Permits 2019 Permit extension.
https://ecology.wa.gov/wwapermitextensionfaqs-pdf
WSR 23-19-066 Commerical airport restrictions
WSR 23-19-066 requires commercial airports in Washington procure non-PFAS firefighting agents by 2025.
https://ecology.wa.gov/wsr-23-19-066
WSR 22-19-037
This is the CR-101 rescinded notice for WAC 173-305.
https://ecology.wa.gov/wsr-22-19-037
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