Our mission is to keep Washington waters clean. Use this site to find out if a lake, stream, or marine beach near you is healthy or polluted. Learn about water cleanup plans and how we’re …

About us. Our vision: Our partnerships protect and sustain healthy land, air, water, and climate in harmony with a strong economy. Our mission: To protect, preserve, and enhance …

Regional Business Administrator. Abbe White, [email protected], 360-791-9577 Air Quality manager. Sean Lundblad, [email protected], 360-789-9896 Hazardous Waste & …

Rainwater collection, including the use of rain barrels, has become more popular as a supplemental source of water. In 2009, we issued a rainwater use interpretive policy, which …

Water & Shorelines. We improve and protect water quality, manage and conserve water resources, and effectively manage coastal and inland shorelines to assure our state has …

Groundwater quality standards. The goal of the groundwater quality standards is to maintain the highest quality of groundwater by reducing and eliminating groundwater contamination. We …

Water supply. We manage water resources to benefit all Washingtonians and to protect the natural environment for current and future generations. Our vision is that Washington State's …

Wetlands. Washington's wetlands protect water quality, reduce flooding, provide aquifer recharge for drinking water and other uses, and provide critical habitat for fish and wildlife.

Who we are. Our agency is dedicated to preserving and protecting the environment in Washington. To learn how we preserve and protect Washington's land, air, and water for today …

The Climate Commitment Act (CCA) caps and reduces greenhouse gas emissions from Washington’s largest emitting sources and industries, allowing businesses to find the most …