AK SB219

Requires the Alaska Department of Environmental Conservation to test drinking water from all public water systems at least annually for PFAS contamination, with additional testing required when PFAS releases occur near water supplies.

Establishes specific contamination limits for six PFAS compounds, including 4 parts per trillion for PFOA and PFOS, and 10 parts per trillion for PFNA, PFHxS, and GenX.

Mandates the department provide alternative drinking water at no cost to affected users when contamination exceeds established limits.

Creates liability framework holding manufacturers responsible for drinking water costs and cleanup when users followed all applicable laws and instructions, with retroactive application to past PFAS releases.

Requires thermal remediation facilities treating PFAS contamination to obtain Clean Air Act permits and prohibits permits if remediation releases more than minimal airborne carbon-fluorine compounds; effective date January 1, 2027.