Planning to visit one of our offices? If you would like to meet with a staff member in person, please call ahead to confirm that they will be available. Our office hours are Monday to Friday, 8 a.m. …

Nov 20, 2025 · Ecology's work near you Environmental review (SEPA) Laws, rules, & rulemaking Publications & forms Budget & legislative Contracts & bids Grants & loans Online tools I want …

Who we are Find everything you need to know about Ecology — what we do, why we do it, and the latest news. Meet our director Our strategic plan News Our programs Environmental …

Each year, all facilities will report to Ecology on the quantity, quality, and end markets of the material processed. End markets must manage recyclables appropriately, without creating …

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich …

We achieve this through fair and just practices that support the well-being and resilience of Ecology’s workforce and everyone in Washington.

https://ecology.wa.gov/10-3-17_prelimsourcecontrolfinal Vantage Data Center Health Impact Assessment (Second Tier Review) Recommendation, April 2022

Most of Ecology's publications are available online as PDF or Word files. We encourage you to be sustainable by viewing our publications online and only printing them when necessary.

Working for Ecology offers great benefits — health care, retirement, vacation. But the biggest benefit of all is knowing that your work is helping create a cleaner, healthier, more beautiful …

Ecology’s Yard Program provides free soil sampling and cleanup for residential yards in the most contaminated areas of the Tacoma Smelter Plume. If your property is in the Yard Program …