['Water Programs']

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

11/20/2025

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Drinking Water MCLs for PFAS Chemicals — Arizona

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Drinking Water MCLs for PFAS Chemicals — Arizona

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

Arizona follows the federal Maximum Contaminant Levels (MCLs). 

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

Arizona has no state-specific PFAS drinking water requirements.

Related information

Safe Drinking Water Act ezExplanation 
Drinking water (SDWA) ezExplanation 
ADEQ Compliance Assistance: Current Drinking Water Rules

Citations

Arizona Revised Statutes § 49-353(A)(2)(a) Adoption of federal requirements
Alaska Administrative Code 18 A.A.C. 4 Safe Drinking Water
Federal regulation 40 CFR Part 141 
Federal regulation 40 CFR Part 142 
Federal regulation 40 CFR Part 143

['Water Programs']

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

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