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

Ecology is considering amendments to Chapter 173-423 WAC, Washington’s Clean Vehicles Program rule. Washington law (RCW 70A.30.010) requires Ecology to adopt certain California regulations to maintain ...

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.

Ecology is considering adding new freshwater recreational criteria to Chapter 173-201A WAC, Water quality standards in surface waters of the State of Washington. The criteria are for toxins produced ...

This event is scheduled for two days: Dec. 9 and Dec. 10, 2025 from 12 p.m. to 4 p.m. To see the time and schedule of individual speakers, here is a detailed daily agenda. The forum will follow this ...

Ecology cleaned up smelting contamination on the Columbia River public waterfront in Northport using state funding to remove ...

Geothermal energy comes from the natural heat inside the earth and can be used to generate electricity. Mountains, such as Mt. St. Helens, have been identified as having geothermal resource potential.

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 ...

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 ...