(a)  On or before November 1, 2023, the director of the department of environmental management shall publish a plan for public review and comment to complete a statewide investigation of potential sources of per- and polyfluoroalkyl substances (PFAS) contamination. As part of this investigation, the director of the department of health shall conduct a pilot project at public water systems by an applicable analytical method to evaluate total PFAS. The director of the department of environmental management shall initiate implementation of the plan not later than January 1, 2024.

(b)  On or before June 1, 2024, all public water systems shall conduct monitoring for the maximum number of PFAS detectable from standard laboratory methods.