An Act relating to perfluoroalkyl and polyfluoroalkyl substances; relating to thermal remediation of perfluoroalkyl and polyfluoroalkyl substance contamination; and providing for an effective date.

SB 219 requires Alaska's Department of Environmental Conservation to annually test all public water systems for PFAS (perfluoroalkyl and polyfluoroalkyl substances) and test immediately if contamination occurs. If PFAS levels exceed specified limits - such as 4 parts per trillion for PFOA or PFOS - the department must provide free alternative drinking water to affected residents. The bill establishes liability: entities that negligently release PFAS must cover testing and water replacement costs, while manufacturers may be liable if users followed all regulations. It sets clear, science-based contamination thresholds (e.g., 10 parts per trillion for certain chemicals) and defines a "hazard index" for mixed contaminants. This directly affects public water systems, residents in contaminated areas, and entities handling PFAS-containing products.