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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. The state generally follows the federal rules established under the Safe Drinking Water Act (SDWA) in regulating drinking water supplies, including the adoption of the federal maximum contaminant levels (MCLs). See the national section DRINKING WATER for more information about the SDWA and MCLs. Arizona allows the use of POU treatment devices for compliance with MCLs.
• Administration and enforcement. The Arizona Department of Environmental Quality's (ADEQ) Safe Drinking Water Program is responsible for rule development, water plan reviews, compliance assistance, the collection and analyzing of data, and the inspection of drinking water facilities. ADEQ's Engineering Review Section conducts the technical and engineering review of certain infrastructure facilities under the SDWA. ADEQ's Operator Certification Program administers ...