Legionella Risk Factor: Temperature

One of the primary risk factors for Legionella growth is the temperature of the water. Typical healthcare, hotel, warehouse, and other facility water systems contain water that falls into the range of Legionella growth. Peak levels of growth are found in a specific range that is common in water systems during warmer months.

Legionella Temperature Versus Growth Chart


Legionella temperature versus growth chart

Note: The above indicators are based on ideal laboratory conditions with new, clean pipes that do not have sediment, biofilm, etc.

Temperature Effects on Survival and Growth of Legionella in Laboratory Conditions

Legionella Control Systems and Water Management Plans

Want to keep your customers, patients, and employees safe? Contact Nancrede Engineering at info@nancrede.com or +1 888 56-WATER (569-2837) for Legionella control systems, including water softeners. design, service, and sales of industrial water systems in Indiana, the Midwest, and throughout the U.S. Our experienced engineers are ready to help.


See all of the Legionella risk factors: Water Age (stagnant water), Temperature, Disinfectant Levels, and Scale/Sediment.

Contact Nancrede Engineering for CDC Legionella risk assessment and Legionella testing.