Public input & events
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More Ecology activities:
Flame Cap Kilns and Air Curtain Incinerators, Chapters 173-425, 173-430, and 173-400 WAC
Comment Period:
Nov. 13, 2025, 12 a.m. - Jan. 20, 2026, 11:59 p.m.
We are proposing to update three rules:
We are proposing to update three rules:
Sabey Data Center, Quincy
Comment Period:
Nov. 3, 2025, 12 a.m. - Dec. 14, 2025, 11:59 p.m.
We propose to approve Sabey Data Center’s Building E air quality notice of construction (NOC) application.
We propose to approve Sabey Data Center’s Building E air quality notice of construction (NOC) application.
Flame Cap Kilns, Chapters 173-425, 173-430, 173-400 WAC
Public Event:
Jan. 6, 2026, 10 a.m., in online webinar
We are holding a public hearing about the rulemaking to update three rules:
We are holding a public hearing about the rulemaking to update three rules:
6PPD State of the Science
Public Event:
Dec. 9, 2025, 12 p.m., in Online only
We invite you to a two-day virtual forum on Dec. 9 and Dec. 10, 2025 from 12 p.m. to 4 p.m. to learn more about the latest research and actions on 6PPD and 6PPD-quinone.
We invite you to a two-day virtual forum on Dec. 9 and Dec. 10, 2025 from 12 p.m. to 4 p.m. to learn more about the latest research and actions on 6PPD and 6PPD-quinone.
Arkema Inc cleanup site, Tacoma
Comment Period:
Dec. 4, 2025, 8 a.m. - Jan. 6, 2026, 11:59 p.m.
We invite you to review and comment on a plan to keep arsenic from this site out of the Hylebos waterway.
We invite you to review and comment on a plan to keep arsenic from this site out of the Hylebos waterway.
Organics management rulemaking
Public Event:
Nov. 5, 2025, 2 p.m., in Online webinar
We invite you to join us for our third public meeting about organics management rulemaking.
We invite you to join us for our third public meeting about organics management rulemaking.
Organics management rulemaking
Public Event:
Nov. 5, 2025, 12 p.m., in Online webinar
We invite you our Environmental Justice listening session about organics management rulemaking.
We invite you our Environmental Justice listening session about organics management rulemaking.
Draft ORCA waiver documents
Public Event:
Nov. 6, 2025, 1:30 p.m., in Online webinar
We invite you to join us for a webinar about the Organics Recycling Collection Areas (ORCA) waiver process.
We invite you to join us for a webinar about the Organics Recycling Collection Areas (ORCA) waiver process.
Organics management rulemaking
Comment Period:
Oct. 21, 2025, 12 a.m. - Dec. 12, 2025, 11:59 p.m.
We invite you to review and comment on the draft language for the organics management rulemaking.
We invite you to review and comment on the draft language for the organics management rulemaking.
Organics management, Chapter 173-350 WAC
Comment Period:
Jan. 14, 2025, 12 a.m. - March 31, 2025, 11:59 p.m.
We are starting the rulemaking process to update Washington's organic materials management regulations under Chapter 173-350 WAC Solid Waste Handling Standards.
We are starting the rulemaking process to update Washington's organic materials management regulations under Chapter 173-350 WAC Solid Waste Handling Standards.
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