['Water Programs']
['Water Analysis', 'Water Monitoring', 'Maximum Contaminant Levels', 'Water Programs', 'Water Reporting', 'Toxic Water Pollutants']
11/25/2025
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North Carolina follows the federal Maximum Contaminant Levels (MCLs).
- PFOA: 4 parts per trillion (ppt)
- PFOS: 4 ppt
North Carolina incorporates by reference the federal MCLs for organic contaminants and associated National Primary Drinking Water Regulations for PFAS (40 CFR 141.61 and Subpart Z).
The North Carolina Department of Environmental Quality has developed proposed standards for surface water discharges and groundwater cleanup standards. These proposed standards complement the federal drinking water standards by reducing PFAS entering our drinking water sources and addressing past contamination.
Related information
Citations
- North Carolina Administrative Code Title 15A Section 18C.1518
- North Carolina Administrative Code Title 15A Section 18C.1540
- Federal regulation 40 CFR Part 141
- Federal regulation 40 CFR Part 142
- Federal regulation 40 CFR Part 143
['Water Programs']
['Water Analysis', 'Water Monitoring', 'Maximum Contaminant Levels', 'Water Programs', 'Water Reporting', 'Toxic Water Pollutants']
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