Ecology, local clean air agencies, and Tribes can restrict indoor and outdoor burning under certain conditions. Air quality burn bans protect people when the air is unhealthy. Fire safety burn bans ...

Looking for a service provider? Here is a excel spreadsheet that lists certified UST service providers.This list is updated quarterly. Disclaimer: We do not assume any liability for the accuracy or ...

Agricultural runoff can pollute lakes, rivers, and marine beaches. It can also contaminate groundwater. Landowners can prevent runoff by using best practices that keep soil and other pollution out of ...

Ecology forecasts the amount of revenue we expect auctions to generate. The Legislature uses those forecasts to designate specific amounts of money for specific purposes through the appropriations ...

In 2024, Washington adopted the Cookware Containing Lead law (Chapter 70A.565 RCW) to prohibit the sale of cookware containing lead in Washington. As of January 1, 2026: No manufacturer may make, sell ...

Water banks make water available for new uses in areas where existing water supplies are fully allocated. In Washington, water banks provide mitigation for those new uses by setting aside an existing ...

In partnership with the state Department of Commerce, we are leading a group of state agencies to identify actions to improve siting and permitting of clean energy projects in Washington. The council ...

Anaerobic digestion is the process through which organic materials break down in the absence of oxygen. Composting is the break down of the material with oxygen. Anaerobic digestion produces gas - ...

Cleaning up contamination can mean removing contaminated material from the site and storing it in a special landfill, treating it until it’s no longer harmful, or isolating it so it can’t affect human ...

Under the State Environmental Policy Act (SEPA), project proposals are reviewed by a designated “lead agency.” While this is typically a city or county government, other entities such as ports, ...

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 ...

Hasa receives sodium hypochlorite (bleach) in bulk tank trucks, off-loads it to bulk storage tanks, and repackages it into 1-gallon bottles for shipment. It sends wastewater to the Nippon Dynawave ...