Minnesota Drinking Water: What you need to know

Governing Law and Regulations

Public water supplies: Minnesota Rules (MR) 4720.0010 to 4720.9080

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Safe drinking water: Minnesota Statutes Annotated (MSA) 144.381 to 144.387

Drinking water suppliers: MR 4720.0012

Wellhead protection: MR 4720.5100 to 4720.5590

Water haulers: MR 4720.4000 to 4720.4600

Operator certification: MR 9400.0100 to 9400.1500

Regulatory Agencies

Minnesota Department of Health (DOH)

U.S. Environmental Protection Agency (EPA) Region 5

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Minnesota has adopted the rules of the federal Safe Drinking Water Act (SDWA) by reference (MR 4720.0010 to 4720.5590). For additional guidance, see the national section DRINKING WATER.

The Minnesota Department of Health (DOH) may also impose additional monitoring requirements if sanitary survey results indicate that a public health hazard may exist. More frequent sampling may be required if water tests show that a contaminant is approaching a maximum contaminant level under 40 CFR 141.

In addition to following the federal rules, the state has some additional rules related to other drinking water activities such as well head protection, water hauling, and water supply system operator certification.

Administration and enforcement. DOH has been granted primacy from EPA to administer the SDWA and is responsible for the administration and enforcement of drinking water rules and programs in Minnesota by authority of MSA 144.381 to 144.387.

State Requirements


MR 4720.0012

New water systems may not begin operation until the DOH approves plans and specifications and approves ...

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State Requirements

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Minnesota Drinking Water Resources

Drinking Water Products

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