Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS)

The bill was amended to clarify that the commissioner must modify an existing maximum contaminant level for PFOS and PFOA rather than establishing a new one, while maintaining the same 4 parts per trillion limit. The amendment also reorganized the structure of the new section to align with the bill's procedural history, which now includes a second committee report. These changes ensure the language accurately reflects the legislative intent to update existing regulations alongside setting new limits for other chemicals.