Many people think that most water pollution comes from big industries. However, over the years we've worked with large businesses and had great success in controlling the pollution they produce. Today ...

Stormwater washes pollutants into aquatic ecosystems degrading water quality, impacting aquatic life, and threatening human health. In 1987, the U.S. Congress established the National Estuary Program ...

We offer post-cleanup grants to local governments that independently clean up contamination under the Voluntary Cleanup Program. The purpose of Independent Remedial Action Grants (IRAGs) is to ...

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These grants are given to local clean air agencies and Ecology regional offices (if there's no local clean air agency) for projects that support wood stove education and enforcement. Wood smoke is one ...

On Nov. 20, 2025, Ecology adopted amendments to Chapter 173-337 WAC: Safer Products Restrictions and Reporting. This rule adopts restrictions and reporting requirements related to the intentional ...

Learn more about climate action in Washington. The Tribal Carbon Offset Assistance Grant program supports Tribal development of carbon offset projects on federally recognized Tribal lands in ...

Some of our water quality improvement projects, including total maximum daily loads (TMDLs), are active and have webpages that are listed alphabetically (see left navigation menu). However, to find ...

b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other ...

Local governments can apply for a grant or loan to help clean up hazardous waste sites supervised by Ecology or EPA under a legal order or decree. Every even-numbered year, we work with local ...

We prevent and clean up toxic leaks and spills across the state. We respond to spills, inspect chemical storage and transport facilities, and clean up complex contaminated sites that threaten the ...

Schools and daycare centers in Washington can apply to receive reimbursement for replacing light ballasts that may contain polychlorinated biphenyls (PCBs). While the U.S. banned the manufacture of ...