The drought declared in April 2024, is still in effect while experts keep an eye out for signs of improving conditions.

The Washington Applied Sustainability Internship (WASI) program pairs college students with businesses to help achieve ...

Washington's ocean and shorelines are integral to the regions character, quality of life, and economic viability. We work in partnership to protect and restore important habitats and ocean resources, ...

We regulate Underground Injection Control (UIC) — or injection wells — in Washington through our UIC program. All owners must register their wells before use. You do not need to register the type of ...

The Salish Sea Model was developed by Pacific Northwest National Laboratory (PNNL) in collaboration with scientists within our Environmental Assessment Program. The model is a powerful computerized ...

Wetlands are protected by local, state, and federal laws. Applicants with development proposals that may adversely affect wetlands must apply mitigation sequencing before permitting agencies consider ...

Ecology is hosting a community forum for the Chapter 173-423 WAC, Clean Vehicles Program rulemaking and the Chapter 173-443 WAC, HFC rulemaking.

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.

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 ...

We track ozone pollution in current air quality conditions (map). We monitor ozone at 13 locations to make sure levels are in the healthy range. Currently, all areas of Washington meet the national ...

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 ...

Jellyfish "smacks," or mass aggregations, are common in Puget Sound during the summer. The number of jellyfish appears to be growing larger, and we are interested in learning why. We are monitoring ...