The 2023-2025 biennium outcomes report is now available as an interactive story map, highlighting water quality improvements ...

We’ve launched a study to determine the impacts of battery energy storage systems in which we’ll consider the best available ...

Use this portal to filter and search for all of our regulatory information. We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & ...

Find an E-Cycle location by entering your address, city, or zip code. E-Cycle Washington is a free program that makes it easy for Washington residents to recycle certain broken, obsolete, or worn-out ...

Businesses in Washington must follow the the Dangerous Waste Regulations (Chapter 173-303) to ensure they properly handle and dispose of dangerous waste. For most businesses, the process will involve ...

Oct. 22, 2026, 5 p.m. Online – Register for the webinar. Oct. 28, 2026, 5 p.m. Yakima Valley College, Building 38, Kaminski Conference Center directions 1704 West Nob Hill Blvd., Yakima, WA 98902 ...

Drayton Harbor and the streams that flow into it have high levels of fecal bacteria. The harbor and several streams in the watershed are on Washington’s impaired waters list, called the 303(d) list.

Today, the Washington Department of Ecology issued an administrative notice to Nippon Dynawave Packaging documenting environmental violations stemming from the May 26 storage tank failure at the pulp ...

Unsafe management of dangerous waste has been a recurring problem at Nichols Brothers Boat Builders on Whidbey Island. Today, the Washington Department of Ecology issued a $39,000 penalty to Ice Floe ...

Some of the dirtiest water recorded in the last 10 years entering the Spokane River from Hangman Creek after a large rain event in June. Practices such as no-till can help prevent sediment and other ...

Waste management in Washington relies on a working partnership between state and local governments and private-sector businesses. County governments and local health departments develop solid waste ...

Underground Injection Control (UIC) wells — or injection wells — are structures built to allow fluids to flow into the ground (usually) under the force of gravity. The most common in Washington are ...