Broken Michigan water main triggers emergency across Oakland County

Water service across parts of Oakland County was pushed into crisis after a 42-inch transmission main broke in Auburn Hills, leaving Auburn Hills, Pontiac, Rochester Hills, Orion Township, Lake Orion and Oakland Township facing severe disruptions. Schools closed, businesses posted shutdown notices, and residents in nursing homes and assisted-living facilities were moved to alternate sites as officials scrambled to keep drinking water, sanitation and emergency services functioning.

Orion Township issued a boil-water advisory for the entire township and told residents to use water only for hydration and essential sanitary needs. Oakland County said residents and businesses in Orion Township, the Village of Lake Orion, Rochester Hills and Auburn Hills should restrict water use to what is absolutely essential and prepare to be without service for a minimum of 14 days. Great Lakes Water Authority said it was distributing water by truck at three locations in the affected area, while Oakland County posted information on portable restrooms, incident updates and distribution sites. An evacuation order was also issued for health care facilities in the Orion Township area.

The rupture hit after the same main had been under watch for days. Great Lakes Water Authority said the leak was discovered on May 6, 2026, in River Woods Park in Auburn Hills, just south of M-59. The break followed at about 1:30 a.m. on May 10, before rerouting could be completed. Suzanne Coffey, the authority’s chief executive, said the pipe had been monitored since the leak was found. The main sits about 20 to 25 feet below ground and was about 50 years old, even though it had been expected to last for a century.

The damage triggered a broad government response. Governor Gretchen Whitmer declared a state of emergency on May 10, 2026, and activated the State Emergency Operations Center to coordinate with local officials. Oakland County Executive David Coulter also signed an emergency declaration. The response framed the outage as more than a local utility problem, with officials treating it as a public health and continuity issue because water loss quickly affects schools, businesses, hospitals and basic sanitation.

Great Lakes Water Authority said its field crews were working around the clock to install a new pipe segment and had targeted completion for Monday evening, May 11, 2026. Even so, the authority warned that normal service might not return for about two weeks or longer, depending on how the repair progressed. For Oakland County, the break became a sharp reminder that a single failure in an aging transmission line can ripple through multiple communities within hours.