Industrial and stationary-source noise in Mililani Mauka is capped by Hawaii HAR 11-46 dBA limits tied to zoning class, with ROH Chapter 41 Article 6 supplementing local enforcement for commercial facilities.
Mililani Mauka is predominantly residential, so stationary-source complaints typically involve HVAC units, pool pumps, backup generators, and commercial refrigeration at Mililani Mauka Shopping Center. HAR 11-46 sets maximum permissible sound levels by zoning class at the property line: Class A (residential) 55 dBA day and 45 dBA night. DOH investigates complaints with calibrated meters and can require abatement. ROH Chapter 41 Article 6 gives HPD local authority to cite commercial operations creating prohibited noise. The upper-elevation Mauka setting carries sound well, so even modest equipment can trigger complaints.
DOH administrative penalties up to $10,000 per day; ROH §41-6 violations start at $100 per incident.
See how other cities in Honolulu County handle industrial noise.
See how Mililani Mauka's industrial noise rules stack up against other locations.
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