Chris Nancrede, EIT, ASSE 12080 is the president of Legionella Control Systems, which is an engineering firm dedicated exclusively to Legionella and pathogen control. Founded in Indianapolis in 1932 by Henry T. Nancrede, the company has maintained a strong commitment to ethics, customer service, and innovative engineering. The firm sharpened its focus in 2023 by divesting non-pathogen consulting services to concentrate solely on Legionella and waterborne pathogen control. As an independent provider, Legionella Control Systems is uniquely positioned to evaluate and apply the most effective chemical and non-chemical strategies, including site consultations, secondary disinfection, water management programs, testing, and its own patented water softener system.
The company’s independence allows it to offer unbiased recommendations, free from ties to specific products or treatment methods. Legionella Control Systems serves a broad range of industries—healthcare, government, education, hospitality, manufacturing, and residential sectors—delivering services such as secondary disinfection, Legionella testing, remediation, and mitigation. All work is performed in alignment with the ASSE/IAPMO/ANSI 12080 professional standard, and key personnel are certified Legionella Water Safety and Management Specialists under ASSE 12080.
