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Environmental Investigation Resources

Assessment and Sampling

The following environmental assessment and sampling tools are available to assist in the environmental component of Legionnaires’ disease outbreak investigations.

Environmental Investigation Videos

clinicians taking water samples

CDC developed six instructional videos on various environmental aspects of legionellosis outbreak investigations.

View the videos

  • Legionella Environmental Assessment Form [13 pages] (UPDATED June 2015)
    Use this form to document a facility’s water systems, help determine whether to conduct Legionella environmental sampling, and, if so, develop a sampling plan.
  • CDC Sampling Procedure and Potential Sampling Sites [6 pages]
    Use this protocol to collect environmental samples for Legionella culture during an outbreak investigation or when cases of disease may be associated with a facility (includes sampling supply checklist).
  • Sample Data Sheet [1 page]
    Use this form to keep track of environmental samples taken for Legionella culture during an investigation.
  • Environmental Investigation Videos
    Watch six instructional videos for information on various environmental aspects of Legionnaires’ disease outbreak investigations.
  • Online Training — Preventing Legionnaires’ Disease: A Training on Legionella Water Management Programs (coming 2018)

A consultant with Legionella-specific environmental expertise may sometimes be helpful in implementing and operating water management programs or when you desire additional remediation resources.

See Guidelines, Standards, and Laws for additional resources.