DRAFT Guidance for Investigating and
Remediating PFAS Contamination in
Washington State

Draft guidance available for public comment

Dec. 15, 2022 – Feb. 3, 2023, 11:59 p.m.

Draft guidance for investigating & remediating PFAS contamination – Washington State Department of Ecology

You’re invited to review and comment on our draft cleanup guidance for per- and polyfluoroalkyl substance contamination and cleanup.

Per- and polyfluoroalkyl substances are collectively known as PFAS. This group comprises thousands of unique synthetic organic chemicals that are extremely stable and persistent.