The rains and floods that swept through our communities in December was followed by cooler weather and heavy snow. That ...

There is so much to discover about how Ecology’s work might show up in your life. Stay in the loop so you know about air and ...

New PFAS rules took effect in 2025, making consumer products safer in Washington. See how Ecology is reducing pollution at ...

Water quality issues. Fish and wildlife protection or enhancement in or adjacent to waters of the state, such as streams, lakes, wetlands, or the ocean. To be considered, projects must provide primary ...

Following the publication of this report, the Washington State Department of Commerce submitted revised greenhouse gas emissions data to the Department of Ecology. Ecology will publish an updated ...

Learn how to record and report water use Learn about meter types and how to read them Contact a Metering Coordinator ...

Organohalogen flame retardants (OFRs) Other electronic enclosure products for Group 1 entities Restricted Jan. 1, 2027 Organohalogen flame retardants (OFRs) Other electronic enclosure products for ...

Learn more about climate action in Washington. Owners and operators of municipal solid waste landfills Projects must be necessary and directly related to meeting or exceeding the compliance ...

We are responsible for protecting, preserving, and enhancing Washington’s environment. Permits and certifications ensure that individuals and businesses understand and comply with all applicable ...

Planning to visit one of our offices? If you would like to meet with a staff member in person, please call ahead to confirm that they will be available. Our office hours are Monday to Friday, 8 a.m. – ...

We adopted changes to chapter 173-201A Water Quality Standards for Surface Waters of the State of Washington. In response to nominations we received in 2021, and after considering public comments and ...

Ecology is starting the rulemaking process to amend Chapters 173-18, -20, -22, -26, and -27 under the Shoreline Management Act. Add requirements for local governments to address the impact of sea ...