Our aquatic plant specialist explains the differences between invasive and native milfoils, why native milfoils are important ...

NextCycle Washington advances recycling and reuse projects for a circular economy. The third cohort of teams just started our ...

Dangerous substances can spill to land, water, or air. The sooner a spill is reported, the sooner we can respond. Failure to report a spill you're responsible for could result in penalties.

Public comments are accepted over a 30-, 45-, or 60-day period. During that time, you can share your input with us about specific changes in the permits we regulate. We review all comments and then ...

The Public Trust Doctrine is a legal principle derived from English common law. The Public Trust Doctrine protects public ownership interests in certain uses of navigable waters and underlying lands.

Sample of vitrified material at the U.S. Department of Energy's Office of River Protection. For the past few decades, the most dangerous radioactive and chemical waste has been and continues to be ...

We publish an online SEPA Register that includes all State Environmental Policy Act (SEPA) and National Environmental Policy Act (NEPA) documents that have been submitted to Ecology. The SEPA Register ...

Changing climate conditions have increased the threat of flood damage and impacts to aquatic species in the Chehalis Basin watershed. We are working to provide adaptability and resiliency for both ...

Puget Sound is critical to our environment, culture, and economy. About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s second largest marine estuary faces a number ...

Washington state law requires producers of certain plastic products such as beverage containers, trash bags, and household and personal care product containers to meet post-consumer recycled content ...

Below normal precipitation compounded with the effects of multiple droughts have experts concerned about this year's conditions.

We are working with an advisory group to research and write Voluntary Clean Water Guidance for Agriculture. This guidance document will be a technical resource for agricultural producers that ...