These forms are the first step in a legal process called adjudication. This process will determine who has a right to use ...

Join us virtually on March 17, 2025, to learn more about our agency’s efforts in developing a strategy to achieve healthy ...

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

The Yakima Basin has had back-to-back droughts in 2023 and 2024. Heading into irrigation season, we are getting a better idea ...

Every year, 20 billion gallons of oil moves through Washington by vessel, rail, and pipeline, posing significant risk of environmental damage. The risks associated with all modes of oil transportation ...

The state Water Supply Availability Committee (WSAC) monitors water supply conditions throughout the state to identify possible drought conditions as early as possible. If they determine current or ...

The state Shoreline Management Act (SMA) defines a special category of shorelines where statewide interests take priority and specific uses are preferred. These "shorelines of statewide significance" ...

Channel migration zones are areas in a floodplain where a stream or river channel can be expected to move naturally over time in response to gravity and topography. Water bodies such as rivers and ...

Each of us has the ability to reduce noise in our community by being aware of the noise we make as residents, workers, or as businesses. Noise pollution is regulated by local governments. We do not ...

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 ...

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

Your input is valuable to our decision-making process. We post water right documents for notice or comment. Documents posted for comment have a link to our online comment form. Other documents are ...