We're updating requirements for protecting water quality when washing and maintaining bridges and ferry terminals.

This enforcement action follows the conclusion of Ecology’s investigation of the 2023 Conway spill. For questions about the ongoing response for a leak on the Olympic Pipeline that began Nov. 11, 2025 ...

The Lower Peshastin Creek Restoration Project cleaned up contamination, reconnected the creek to its historical channel, and ...

A revised draft environmental impact statement looks at the potential impacts to fish, habitat, water quality and nearby communities from a proposed project to reduce flood damage in the Chehalis ...

We are starting two rulemakings to update Washington’s water quality standards to help address freshwater nutrient pollution and the harmful, toxic algal blooms that can result from it.

Tugboats. Street sweepers. Freight switchers. Ambulances. Box trucks. All of these vehicles typically run on diesel engines that produce harmful exhaust. But there is cleaner technology available, and ...

The Wenatchee area continues to see some smoke impacts from the Labor Mountain Fire, but recent rain and cooler weather mean wildfire season is winding down. It's a good time to look back at this year ...

In the Yakima Basin, a third consecutive year of drought has caused historically low reservoir storage and streamflows. To address those conditions, the Washington Department of Ecology is issuing an ...

The Washington Department of Ecology and the U.S. Environmental Protection Agency (EPA) are jointly issuing penalties to Seattle and King County for violating conditions of the federal consent decrees ...

As the fall rains return to Washington, it’s easy to forget that we just exited one of the warmest summers in our state’s recorded history. June to August of 2025 was, according to the Washington ...

Firefighting foams like those pictured will be collected at fire departments across the state. Ecology is partnering with fire departments across the state to help protect firefighters from exposure ...

Public meetings, like one held by a grant partner in Ellensburg, are an essential tool to develop community support for air pollution reduction projects. Amid robust demand, we awarded $10 million ...