In April 2012, Minnesota Department of Health (MDH) epidemiologists and MDDH Food, Pools, and Lodging Services (FPLS) sanitarians investigated an outbreak of Pseudomonas aerugiosa dermatitis associated with a hotel pool and hot tub. Seven of 9 people who attended a birthday party on April 15 reported developing rashes consistent with Pseudomonas dermatitis. Cases reported onset of illness 1 to 2 days after going in the swimming pool and hot tub at the hotel. Three were seen by a physician for their rash and were clinically diagnosed with hot tub folliculitis.

Upon inspection of the swimming pool and hot tub, both facilities were immediately closed. The swimming pool had total, free, and combined chlorine levels of 0. The hot tub had a free chlorine level of 0.4 ppm and a combined chlorine level of 0.2 ppm. None of these levels were within the state limits. Additionally, the facility lacked complete pool records and documentation.