Lower wildfire activity and changing traffic patterns stemming from the COVID-19 pandemic reduced air pollution in sensitive ...

Many locals have never seen the dense Olympia area exist without Capitol Lake at its center; they don’t know that the mouth ...

Grant recipients of Ecology's landfill methane emissions reduction grant program are having success reducing methane ...

We invite you to comment on two cleanup sites in the Lower Duwamish Waterway as well as a consent decree settling who will pay for sediment cleanup in the river.

The Washington Department of Ecology issued penalties totaling over $1.1 million to Amazon Inc. and Walmart Inc. for illegally selling climate-polluting cooling and refrigeration products. These ...

Read the guide for SQGs. Small quantity generators (SQGs) generate dangerous waste, but do so in lesser quantities than other generator categories. While all dangerous waste generators must follow the ...

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 – ...

Group water systems need to participate in the adjudication by filing court claims. These water systems include cities, special purpose districts, and private systems such as neighborhoods using a ...

Puget Sound has more than 1,400 miles of beaches, most built from sand and gravel eroded from nearby bluffs. Puget Sound's glacial history and unique geology make these feeder bluffs an important ...

Ecology's air quality in overburdened communities grant program is reducing air pollution through sustainable transportation.

This rulemaking will update both chapters to consider recommendations from the 2025 Best Achievable Protection (BAP) workgroups. To learn more about this rulemaking and recommendations from the 2025 ...