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.

See more about this collection...

Spreadsheet of TEC & DWEC

This spreadsheet includes the proposed revisions to policy 1-11 assessment of tissue and water data for human health

https://ecology.wa.gov/spreadsheet-of-tec-dwec

Spokane River Stewardship Partners Policy 1-11 comment letter

2017 Spokane River Stewardship Partners comment letter on WQ Assessment Policy 1-11 updates

https://ecology.wa.gov/srspcomment_hhc_3-15-2017

Stakeholder Meeting Summary (WAC 173-407) 04/13/17

This is stakeholder meeting summary for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-407-20170413

Stakeholder meeting summary (WAC 173-405; WAC 173-410; WAC 173-415) 07/17/18

This is a summary of the 7/17/18 stakeholder meeting for WAC 173-405, Kraft Pulping Mills; WAC 173-410, Sulfite Pulping Mills; and WAC 173-415, Primary Aluminum Plants.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-405;-wac-173

Stakeholder meeting summary (WAC 173-400) 09/12/18

This is the meeting summary for the 9/12/18 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-400-09-12-18

Stakeholder meeting summary (WAC 173-405; WAC 173-410; WAC 173-415) 08/14/18

This is a summary of the 8/14/18 stakeholder meeting for WAC 173-405, Kraft Pulping Mills; WAC 173-410, Sulfite Pulping Mills; and WAC 173-415, Primary Aluminum Plants.

https://ecology.wa.gov/meeting-summary-wac-173-405;-wac-173-410;-wac-173

Stakeholder meeting summary (WAC 173-400) 10/16/18

This is the meeting summary for the 10/16/18 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-400-10-16-18

Stakeholder meeting summary (WAC 173-400) 12/20/18

This is the meeting summary for the 12/20/18 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-400-12-20-18

Stakeholder meeting summary (WAC 173-400) 1/24/19

This is the meeting summary for the 1/24/19 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-400-1-24-19

Stakeholder meeting summary (WAC 173-443) 01/28/20

This is the meeting summary for the 1/28/20 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-01-28-20

Stakeholder meeting summary (WAC 173-443) 12/17/19

This is the meeting summary for the 12/17/19 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-12-17-19

Stakeholder meeting summary (WAC 173-443) 11/13-14/19

This is the meeting summary for the 11/13-14/19 stakeholder meetings for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-11-13-14

Stakeholder meeting summary (WAC 173-443) 11-17-22

This is the meeting summary for the November 17, 2022 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-11-17-22

Stakeholder meeting summary (WAC 173-443) 7-14-22

This is the meeting summary for the July 14, 2022 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-7-14-22

Stakeholder meeting summary (WAC 173-443) 5/10/22

This is the meeting summary for the 5/10/22 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-5-10-22

Stakeholder meeting summary (WAC 173-443) 3/31/22

This is the meeting summary for the 3/31/22 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-3-31-22

Stakeholder meeting summary (WAC 173-443) 2/3/22

This is the meeting summary for the 2/3/22 stakeholder meeting for Chapter 173-443 WAC, Hydrofluorocarbons.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-443-2-3-22

Stakeholder meeting summary (WAC 173-424) 11/16/21

This is the meeting summary for the 11/16/21 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-424-11-16-21-2

Stakeholder meeting summary (WAC 173-424) 10/06/21

This is the meeting summary for the 10/6/21 stakeholder meeting for Chapter 173-424 WAC, Clean Fuels Program Rule.

https://ecology.wa.gov/stakeholder-meeting-summary-wac-173-424-10-06-21

SR-520 oil spill press release

Press release for the SR-520 oil spill

https://ecology.wa.gov/sr-520-oil-spill