agr.wa.gov

Chapter 173-337 WAC – Safer Products Restrictions and Reporting (Cycle 1.5: PFAS)

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 ...
agr.wa.gov

Puget Sound Energy - Whitehorn Generating Station

We invite your comments on draft NPDES permit no. WA0030601. We invite your comments on draft NPDES permit being reissued to Puget Sound Energy – Whitehorn Generating Station. The permit authorizes ...
agr.wa.gov

Food processor saves production cost with Ecology pollution prevention grant

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 ...
agr.wa.gov

Model remedies for mine sites

Not all hardrock mining sites are contaminated. If you have a property with an abandoned mine, we may be able to help with sampling to determine if there are contamination concentrations above state ...
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GIS Data

We maintain the spatial datasets described here in order to better describe Washington's diverse natural and cultural environments. As a public service, we have made some of our data available for ...
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Wildfire smoke information

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 ...
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Products required to meet recycled content minimums

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 ...
agr.wa.gov

Meet our director

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 ...
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Proficiency testing requirements

Proficiency testing sample providers must comply with the most current proficiency standards to be recognized by our laboratory accreditation program. Six providers of Proficiency Testing (PT) samples ...
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Ecology considers putting outstanding waters in a class of their own

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, ...
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Burn bans

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 ...
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Recording and reporting water use

(Preferred) Use an electronic spreadsheet, such as Microsoft Excel or Google Sheets, to record data on your device. This will make it easier to submit data through our online portal. (Optional) Use a ...