Legionella Management Servcies

Legionella has become an increasing and very serious concern for those who manage large buildings and facilities like Hospitals, Schools, Commercial and Residential Buildings. It has been widely documented that properly maintaining and continuously reviewing a building’s water systems is the key to keeping Legionella and Legionnaires’ disease at bay. If you would like your facility inspected and tested for possible Legionella contamination, Absolute Resource Associates can help.


A Legionella risk assesssment investigation begins with assessing the entire location, identifying any potential places for Legionella to grow and thrive, such as cooling towers, sinks, faucets, hot water heaters, fountains and hot tubs. Once the various sources are identified, ARA will collect (swab and bulk water) lab samples from each area, and have the samples tested for Legionella growth.  If samples come back positive for Legionella, those areas will need to be remediated.


Legionella Treatment and Remediation

Remediation options for Legionella contamination will vary from case to case, and some examples include: treating with a Chlorine or Bromine based solution, heating the water within the system to at least 158° F for at least 24 hours; and/or replacing the plumbing hardware in question.  Once fully remediated, the areas should be re-tested before the building/facility can be given a clearance report.


Develop a Legionella Water Management Program

Developing and maintaining a legionella management program is a multi-step process that requires continuous review.  Every building is different (depending on factors such as the structure, age, location, occupants of the building, or surrounding conditions) so each one needs a tailored program. A proper and thorough legionella investigation, combined with routine water testing and environmental sampling is recommended to keep your building’s water systems (and occupants) healthy. Give ARA a call to set up your customized plan today:

  • Legionella risk assessment
  • Legionella testing services
  • Legionella inspection services
  • Legionella management services
  • Legionella water treatment
  • Cooling Tower Inspections
  • Certified Lab Testing
  • Remediation Planning


What is Legionella?

Legionella is a dangerous yet common bacterial organism that thrives in aquatic environments, and is often found in cooling towers, showers, faucets, hot tubs, water heaters, etc. The term was coined after an outbreak of illness at an American Legion convention in Philadelphia in 1976 in which 182 people became very seriously ill, and 29 of them died. Inhalation of the bacteria that belong to the family Legionellaceae can cause a form of pneumonia, now called Legionnaires’ disease, and although treatable, still maintains a mortality rate of 1 in 10.


For More Information about Legionella & Legionnaires' Disease:


CDC Legionella fact sheet:



EPA Guidance for Legionella Control:




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