More ‘forever chemicals’ found in WA drinking water as cleanup costs mount | The Seattle Times

Where PFAS exceeded state action levels in Washington public water systems

The state action levels were set to protect people who drink the same water source over the course of their lifetimes. Utilities with wells that exceed these limits must inform their customers and investigate causes. PFAS have been detected over state action levels at some wells in water systems that together serve close to 570,000 people, or 7.4% of the state population.