In Maine, public swimming pools and spas are regulated by the Maine Department of Health and Human Services (DHHS), specifically through the Maine CDC Health Inspection Program. These rules are detailed in the Code of Maine Rules, Chapter 202 (Public Pool and Spa Rules).
As of January 1, 2026, the Maine legislature continues to emphasize strict structural standards, requiring all new public pools and major renovations to be sealed by a Licensed Professional Engineer.
Maine’s standards are designed to handle high-volume seasonal use while preventing waterborne illnesses.
Water Chemistry:
pH: Must be maintained between 7.0 and 7.8.
Free Chlorine: Minimum 1.0 ppm for pools and 3.0 ppm for spas.
Testing Frequency: Operators must test pH and disinfectant levels at least twice per day (hourly during heavy use).
Clarity: A 6-inch black disc must be clearly visible at the deepest point.
Fecal Incidents: Maine requires immediate closure and specific hyperchlorination protocols following the CDC Healthy Swimming guidelines.
Maine has highly specific requirements for "visual markers" and safety equipment:
Depth Markers: Must be at least 4 inches high and located on both the vertical pool wall (readable from the water) and the deck (readable from the land). They must be slip-resistant and installed at every point where the slope changes.
Rope & Float Line: A rope with floats must be provided between 1 and 2 feet of the shallow side of the break in grade (where the pool drops off).
Lifesaving Equipment: Every pool must have:
A 12-foot reaching pole with a body hook (shepherd’s crook).
A U.S. Coast Guard-approved ring buoy (min. 15-inch diameter) with a throw rope at least 1.5 times the pool's width or 50 feet.
Maine law requires all public and residential pools to be enclosed to prevent unauthorized access.
Height: Barriers must be at least 4 feet (48 inches) high.
Gate Security: Gates must be self-closing and self-latching. They must open outward (away from the pool).
Above-Ground Exception: If an above-ground pool has walls at least 2 feet high, it may not require a separate fence, provided the ladder is removable or lockable.
Clear Zone: A 36-inch clear zone is required around the exterior of the fence to prevent "climbing" via nearby equipment (pumps/heaters).
Lifeguards: Required for "Class A" public pools (e.g., municipal). If a "Class B" pool (e.g., hotel/condo) does not have a lifeguard, a "Warning: No Lifeguard on Duty" sign is mandatory.
Telephone Requirements: The location of the nearest telephone must be posted near the pool with dialing instructions and emergency contact numbers for police, fire, and ambulance.
First Aid: A first aid kit with barrier protection (gloves and rescue breathing masks) must be available at all times.
Maine MRS Title 22, §2665 - Submission of Plans: The state statute requiring professional engineering for public pools (Current through 2026).
Maine Public Pool and Spa Rules (Chapter 202): The full text of the Department's rules (via Maine.gov).
Maine CDC Health Inspection Program - License Application: The primary portal for applying for a public pool or spa license (HHE-640).
Maine State Park Lifeguard Academy: For those seeking information on professional certification and employment in state-run facilities.
Note for 2026: Maine has a unique Color Coding requirement for pool piping (e.g., Filtered water must be Light Blue, Skimmers Green, and Main Drains Black). If you are renovating, ensure your pipes are painted or labeled according to these codes to pass inspection.
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