Chlorine leak at Fergus Falls water plant contained, no public risk

The Fergus Falls Fire and Police Departments responded to the Water Treatment Plant on Water Plant Road after a chlorine leak was reported at the city facility. Staff on site told dispatch the leak was small and isolated to the chlorine room, and Fire Chief Ryan Muchow said no evacuations or shelter-in-place orders were needed.

Officials said there was no risk to the public. The incident centered on a 1-ton chlorine cylinder, the kind of equipment that immediately draws attention because chlorine is the principal disinfectant used in Minnesota public water supplies. It is the most common way drinking water is treated so bacteria and viruses are killed and the water stays safe as it moves from the plant to taps across the system.

That is why even a leak contained to a utility room matters operationally. Minnesota rules require gas chlorine systems to be vacuum-fed, enclosed and ventilated, and they require leaking chlorine gas to be vented outdoors during an accident or interruption. In Fergus Falls, responders were dealing with a critical part of the plant’s treatment process, not a broader threat to homes or businesses.

The City of Fergus Falls says its water filtration and treatment plant serves 5,028 residents and commercial users in the city. The plant processes about 500,000,000 gallons of purified water each year, has a capacity of 4,400,000 gallons per day, and averages 2,270,000 gallons per day in demand. That makes the plant one of the city’s most important pieces of infrastructure, especially in a community where dependable water service underpins homes, schools and local businesses.

The Fergus Falls Fire Department serves a 144-square-mile area that includes the city and surrounding townships, so its response to the leak reflected both the immediate plant concern and the broader responsibility to protect a system that cannot afford prolonged downtime. In this case, the leak was contained inside the chlorine room, and officials said the situation never escalated into a public safety emergency.