To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility ...

The Weldcraft Steel & Marine site is one of 12 Bellingham Bay cleanup sites coordinated through the Bellingham Bay Action ...

Businesses are required to notify us of dangerous waste activities if they manage dangerous waste under Washington State Dangerous Waste Regulations as mandated by the Resource Conservation and ...

The dangerous waste annual report is a combination of required forms and other documents that summarize your dangerous waste activities in Washington. If you have an active EPA/State Identification ...

Special waste is a category of Washington state-only dangerous waste that meets the following criteria: Conditionally excluded state-only dangerous waste. Solid only (not liquid, aqueous, or gaseous).

Planned vs. unplanned episodic events A planned event is an episodic event you planned and prepared for, such as tank cleanouts, short-term projects, or removal of excess chemical inventory. An ...

SEPA Categorical Exemption for Infill Housing (SB 5412) Second Substitute Senate Bill 5412 amends SEPA RCW 43.21A.229 to allow proposed housing within urban growth boundaries to rely on environmental ...

In honor of Critter of the Month's tenth birthday, let's explore the world of one of Puget Sound's most graceful ten-legged ...

The 2025 conference was a homecoming for many community leaders and an eye-opening orientation for those brand new to ...

Wastewater Operator Certification Program Fees We are required to fund the Wastewater Operator Certification (OpCert) Program with fees (WAC 173-230-240). We review and evaluate these fees every two ...

In 2017, the Washington Legislature passed Senate Bill 5939 to promote a sustainable, local renewable energy industry through modifying tax incentives. One portion of the bill created Chapter ...

On June 30, 2025, we released final programmatic environmental impact statements for three types of clean energy facilities in Washington -- onshore wind, solar and green hydrogen production. Guidance ...