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Worksheet to Identify Buildings at Increased Risk for Legionella Growth and Spread

Answer the following questions to help assess if your building needs a water management program or if certain devices within the building need a water management program to reduce the risk of Legionella growth and spread.

Building Questions 1–4

  1. Is your building a healthcare facility where patients stay overnight or does your building house or treat people who have chronic and acute medical problems† or weakened immune systems?
     Yes
     No
  2. Does your building primarily house people older than 65 years (like a retirement home or assisted-living facility)?
     Yes
     No
  3. Does your building have a centralized hot water system (like a hotel or high-rise apartment complex)?
     Yes
     No
  4. Does your building have more than 10 stories (including basement levels)?
     Yes
     No

Device Questions 5–8

Devices in buildings that can spread contaminated water droplets should have a water management program even if the building itself does not.

  1. Does your building have a cooling tower ?
     Yes
     No
  2. Does your building have a hot tub (also known as a spa) that is not drained between each use?
     Yes
     No
  3. Does your building have a decorative fountain?
     Yes
     No
  4. Does your building have a centrally-installed mister, atomizer, air washer, or humidifier?
     Yes
     No

  

 

 

Note: The building standards discussed in CDC’s Legionella Water Management Program toolkit do not apply to single-family or small multiple-family residences (e.g., duplexes), even those with the devices in questions 6 through 8, but residents do need to take steps to protect themselves from waterborne diseases. Homeowners should follow local and state guidelines for household water use, and owners of the devices in questions 6 through 8 should follow the manufacturer’s instructions regarding cleaning, disinfecting, and maintenance.

Footnote

†Burns, cancer, solid organ or bone marrow transplant, kidney disease, diabetes, or chronic lung disease

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