Minnesota Statewide Rule

Minnesota Public Pool Safety and Operation Rules

Heavy RestrictionsApplies statewide across Minnesota (2026)

Key Facts

Authority: Minn. R. 4717
License: MDH annually required
Drain Standard: VGB Act compliant
Lifeguard Threshold: Over 1,800 sq ft
Inspection: Annual minimum

Last verified: August 21, 2026Source: Minnesota Revisor of Statutes

Summary

Minnesota Department of Health rules under Minn. R. Chapter 4717 govern public pool operation including water quality, lifeguarding, and safety equipment. The rules apply uniformly to all licensed public pools statewide.

Subd. 1c.Public pools; required equipment. (a) Beginning January 1, 2009, all public pools with the deepest water being less than four feet deep must have: (1) an unblockable suction outlet or drain; (2) at least two suction outlets, connected in parallel with suction outlet covers that meet ASME/ANSI standards; or (3) a gravity outlet or drain. (b) Beginning January 1, 2011, all other existing public pools must have: (1) an unblockable suction outlet or drain; (2) at least two suction outlets, connected in parallel with suction outlet covers that meet ASME/ANSI standards; (3) a gravity outlet or drain; or (4) any other system determined by the commissioner to be equally effective as, or better than, the systems listed in this paragraph at preventing or eliminating the risk of injury or death associated with pool drainage systems.

Source: Minnesota Revisor of StatutesView official code

Full Breakdown

All public pools, including those at apartments, hotels, condominiums, schools, and health clubs, must operate under a Minnesota Department of Health license per Minn. Stat. 144.1222. Chapter 4717 sets requirements for daily water testing, chlorine and pH ranges, depth markers, anti-entrapment drain covers per the federal Virginia Graeme Baker Act, lifeguard staffing for pools over 1,800 square feet, posted safety rules, rescue equipment, telephone access, and incident reporting. Bather load is capped by pool surface area. Pools must close within 30 minutes of a fecal contamination event for treatment. Inspections occur at least annually.

Violations & Penalties

Operating without a license is a misdemeanor. MDH may order immediate closure for contamination, missing lifeguards, or unsafe drains. Fines accrue per day of noncompliance.

Frequently Asked Questions

Is my apartment pool a public pool?

Yes. Any pool serving more than one residential unit, hotel guests, or health club members is a public pool under Minnesota law and requires MDH licensure.

Are lifeguards always required?

Pools with over 1,800 square feet of surface area generally require certified lifeguards. Smaller pools may post warning signs and operate without one.

What are the chemical limits?

Free chlorine must remain at least 1.0 ppm and pH between 7.2 and 7.8. Operators must test and log readings at least twice daily.

Sources

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