Research & Data

Use this portal to filter and search for all of our scientific information.

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 understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Certificate of compliance 2023

Manufacturers that produce food packaging sold in Washington must fill out a Certificate of Compliance to show they meet the PFAS in food packaging rules

https://ecology.wa.gov/certificate-of-compliance-2023

WSR 23-19-066 Commerical airport restrictions

WSR 23-19-066 requires commercial airports in Washington procure non-PFAS firefighting agents by 2025.

https://ecology.wa.gov/wsr-23-19-066

Northeast West Plains PFAS in drinking water sampling area map

West Plains Sampling Map

https://ecology.wa.gov/west-plains-pfas-sampling-area-map

Northeast West Plains PFAS March 2024 well sampling results meeting slides

Download the slides for the 6/6/24 NE West Plains drinking water sampling results meeting

https://ecology.wa.gov/west-plains-pfas-sampling-results-slides

Northeast West Plains PFAS in drinking water sampling results map

The EPA created this map to summarize where samples were taken without showing private well locations.

https://ecology.wa.gov/west-plains-pfas-sampling-results-map

Certificate of compliance: PFAS in food packaging 2024

This is the certificate of compliance for food packaging manufacturers for items regulated as of May 2024.

https://ecology.wa.gov/certificate-of-compliance-2024

Cleanup site: Lower Issaquah Valley PFAS cleanup sites

Ecology is working on three PFAS cleanup sites in the Lower Issaquah Valley: Eastside Fire & Rescue and Issaquah Valley Elementary School (EFR HQ IVES), Memorial Field, and Rainier Trail.

https://ecology.wa.gov/cleanup-site-lower-issaquah-valley-pfas-cleanup-sites

Freshwater fish contaminant monitoring

We analyze freshwater fish for various toxic chemicals.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/freshwater-fish-contaminant-monitoring

Publication index: Per- and Poly-fluorinated Alkyl Substances (PFAS)

List of links to documents and posters about PFAS

https://ecology.wa.gov/per-and-poly-fluorinated-alkyl-substances-pfas

Publication: Washington State Waste & Toxics Reduction Laws (English)

Quick guide for food service organizations and businesses, covering: expanded polystyrene, single-use serviceware, single-use plastic bags, compostable plastic products, and PFAS in food packaging.

https://ecology.wa.gov/publication-washington-state-waste-toxics-reduction-laws-en

Publication: Guía rápida sobre las leyes de reducción de residuos y sustancias tóxicas del estado de Washington (Spanish)

Guía rápida para organizaciones y empresas de servicios de alimentos: Prohibición del poliestireno expandido (EPS), ley de artículos de servicio de un solo uso, prohibición de bolsas de plástico de un solo uso, etiquetas de productos de plástico compostable, y PFAS en el envasado de alimentos.

https://ecology.wa.gov/publication-guia-rapida-sobre-las-leyes-de-reduccion-de-residuos-y-sustancias-toxicas-del-estado-de