Washington’s coastal zone encompasses all the marine shorelines on the Pacific Ocean coast as well as Puget Sound, Hood Canal and Strait of Juan de Fuca. It also includes all the lands and waters in ...

Ecology funding is supporting efforts to reconnect Myers Creek in Okanogan County to its floodplain to restore wetlands. Communities across Washington are preparing to improve wastewater facilities, ...

Businesses in Washington can take advantage of our pollution prevention technical assistance services. Our services are non-enforcement, hands-on, technical assistance (in-person, or by phone or email ...

Commercial and industrial businesses that emit large amounts of air pollution must get an air operating permit. An air operating permit is a master document that lists all of the air pollution ...

Refer to the 2024 updated TAPE Process Overview for everything you need to know about how we evaluate your technology. We also accept applications to the Chemical Technology Assessment Protocol – ...

Cleaner cars. Cleaner fuels. Cleaner power. Cleaner planes. Little by little, Washington is moving the needle toward a clean ...

The Washington Natural Resource Damage Assessment (RDA) Committee meets monthly to determine the most appropriate method for assessing environmental injury from oil spills into state waters. Meeting ...

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 ...

We plan to hold public meetings to provide information about the rulemaking and seek your input. We'll update this page with meeting specifics. To get updates about these meetings and this rulemaking, ...

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 ...

Lewis’ Moon Snail with its dark brown, hard operculum. Courtesy of Linda Schroeder—PNW Shell Club. With its easily recognizable shell (the largest found on Puget Sound beaches), we are certainly over ...

A new Washington regulation will help reduce emissions of methane, a potent greenhouse gas, from municipal solid waste landfills in the state. Methane has more than 80 times the global warming ...