Crews are responding to a tanker truck rollover and spill into Indian Creek on July 18, 2025 at 11:30 a.m. A dual-tanker truck overturned ito Indian Creek of U.S. Highway 101 in Clallam County. Photo ...

With great enthusiasm, 19 community-based organizations partnered with Ecology and King County to distribute thousands of ...

Cleaning up spills Find an approved response contractor If you spill, you will need to hire a state-approved hazmat or primary response contractor to clean up your spill. List of approved response ...

Ecology has a role in protecting water quality at forestry sites, and our analysis of the draft Forest Practices Board rule ...

Dangerous waste vs. Hazardous waste Washington state uses the term "dangerous waste" more than the federal law's term of "hazardous waste." This is because Washington state's Dangerous Waste ...

Shoreline & coastal management Washington's ocean and shorelines are integral to the regions character, quality of life, and economic viability. We work in partnership to protect and restore important ...

We track ozone pollution in current air quality conditions (map). We monitor ozone at 13 locations to make sure levels are in the healthy range. Currently, all areas of Washington meet the national ...

We provide guidance to help applicants complete the Earth section of the SEPA Section B: Environmental elements checklist.

Washington is a leader in reducing and eliminating the use of toxic chemicals in consumer products, such as: Per- and poly-fluoroalkyl substances (PFAS). Lead. Phthalates. Copper, cadmium, and many ...

The following templates are based on applicable SEPA rule sections and other guidance materials. Lead agencies are encouraged to modify these templates for their own use and add information for ...

Rulemaking that has been officially filed with the Washington State Legislature’s Code Reviser’s Office (filed a CR-101 form) and are sorted by topic. Recently closed rulemakings. (closed rulemaking ...

Air Quality Clean air is vital for everyone. We manage smoke, vehicle pollution, industrial emissions, and other pollutants so communities have healthy air to breathe. We do this through permits, ...