Above, left to right: Ifeanyi Isigwe, Ecology toxics reduction engineer, works with Systems Interface’s Steven Hill, project engineer, and Matt Baker, strategy manager, to review, evaluate, and assess ...

It is far less expensive to prevent an oil spill than it is to clean one up. No spill is acceptable — once oil is released into the environment, harmful consequences have already occurred. All oil ...

Here you will find all our associated documents for the Office of Columbia River. We work diligently to document and report the work we do to develop water supplies that provide both instream and ...

Wildfire smoke is a major threat to human health. Smoke from wildfires is the largest source of particle pollution in Washington. Breathing in smoke causes wheezing and coughing, heart and lung ...

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 ...

Our economic analyses support proposed rules and permits, as well as a number of other projects and publications. We use real-world data, often collected directly from stakeholders, to comprehensively ...

Reducing and recycling organic wastes are key goals of Washington's State Solid and Hazardous Waste Plan. Organic materials are valuable resources — from food and yard waste, to biosolids, to ...

Stormwater is rain and snow melt that runs off surfaces such as rooftops, paved streets, highways, and parking lots. As water runs off these surfaces, it can pick up pollutants that contaminate local ...

Washington's recycled content law (Chapter 70A.245 RCW) sets minimum post-consumer recycled content (PCRC) standards for specific products. This page explains which products are subject to the law and ...

Spend time in Washington, and you're likely to encounter one of the many cascading rivers, salmon-filled streams, or picturesque lakes in abundance. From the Puget Sound lowlands to the high desert, ...

Casey Sixkiller was appointed by Governor Bob Ferguson as the 14th Director of the Washington State Department of Ecology. With more than two decades of experience in federal, Tribal, regional, and ...

We invest funds from the Volkswagen settlement and our Clean Diesel program in projects that reduce emissions from transportation. These investments help improve air quality and people's health. They ...