['Water Programs']

['Water Analysis', 'Water Programs', 'Water Reporting', 'Toxic Water Pollutants', 'Water Monitoring', 'Maximum Contaminant Levels']

11/24/2025

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Drinking Water MCLs for PFAS Chemicals — Minnesota

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Drinking Water MCLs for PFAS Chemicals — Minnesota

RegSense Minnesota State Info Water Analysis Water Reporting Water Programs Toxic Water Pollutants Maximum Contaminant Levels Best Results Environmental Water Monitoring Water Programs English Focus Area CWA Compliance

Minnesota follows the federal Maximum Contaminant Levels (MCLs). 

PFOA: 4 parts per trillion (ppt) 
PFOS: 4 ppt

Minnesota has state-specific guidance for non-enforceable Health-Based Values that are lower than federal standards because they only consider health and don’t consider the cost or feasibility of drinking water treatment.

PFOA: 0.0079 ppt  
PFOS: 2.3 ppt

Related information

Safe Drinking Water Act ezExplanation 
Drinking water (SDWA) ezExplanation 
MDH PFAS and Health
MDH Comparison of State and Federal Drinking Water Standards

Citations

Minnesota Administrative Rules Part 7050.0221
Federal regulation 40 CFR Part 141 
Federal regulation 40 CFR Part 142 
Federal regulation 40 CFR Part 143

['Water Programs']

['Water Analysis', 'Water Programs', 'Water Reporting', 'Toxic Water Pollutants', 'Water Monitoring', 'Maximum Contaminant Levels']

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