The Walla Walla basin extends into both Washington and Oregon, and crosses Tribal boundaries. The basin has a long history of challenges with water availability, including over appropriation of water ...

Old orchards in Central Washington left lead and arsenic in soil. Builders must check land history, test soil, cleanup ...

According to data from 2023, more than 150 million pounds of plastic were used in trash bags and beverage containers covered under Washington’s plastics law. Thirty-five companies were fined a ...

Ecology seeking public comments to help shape the future for solar and onshore wind energy facilities in Washington.

According to our contingency planning rule, an approved primary response contractor must commit to the following: When reviewing industry oil spill plans, we analyze whether response equipment is in ...

Learn more about climate action in Washington. Tribal Consultation Grants provide support for federally recognized Tribes with lands and territories in Washington state to engage in a range of climate ...

PFAS can be found in cleaning products and waxes as well as other products that resist water, heat, oil, stains, and grease. What are these "forever chemicals" that you’ve been hearing so much about?

We monitor water quality at nearly 100 river and stream stations throughout the state to understand the health of waterways. Our science offers residents and policymakers credible data to make ...

Ecology is beginning a rulemaking to amend chapter 173-166 WAC Emergency Drought Relief. Through rulemaking, Ecology plans to integrate information related to how Ecology manages its emergency drought ...

The Washington Department of Ecology issued a $120,000 penalty to Christopher Whiteman and Victoria Coury for failing to repair damage to wetlands in unincorporated Island County, about eight miles ...

In early November, we will start seeking proposals for projects designed to improve and protect the overall health of Puget Sound’s riparian areas and make them more resilient to the detrimental ...