HC Info Legionella Blog

Update on ASHRAE 188

“Legionellosis: Risk Management for Building Water Systems” officially became ANSI/ASHRAE Standard 188-2015 on June 26, 2015. The Legionella risk reduction strategy set forth in the standard is to implement a “Water Management Program” (Program) for…

Water Temperatures and Legionella

At the first glance, guidelines may lead engineers and facility operators to conclude that controlling Legionella bacteria in plumbing systems can be accomplished long-term by simply raising water heater temperatures. As with any solution that appears easy and cheap,...

Legionella Disinfection In Plumbing Systems, Four Keys to Success

Disinfection systems can be installed in a building’s plumbing to minimize Legionella bacteria in the water delivered to faucets, showers, and drinking fountains. Commonly used technologies inject a chemical (the disinfectant) into the water supply shortly after it...

Insurance Coverage For Legionnaires Disease Claims

Legionnaires'-related lawsuits are not uncommon, in part because the disease is entirely environmental — it isn’t contracted from another person but by exposure to Legionella bacteria transmitted from water in plumbing systems, cooling towers, whirlpool spas, and...

Legionnaires Disease Associated With Dental Water Lines

In February 2012, The Lancet reported the first confirmed case of Legionnaires' disease associated with dental water lines. The patient, an 82-year-old woman in Rome, died just two days after she was diagnosed despite heavy antibiotic treatment. In the 2 to 10 days...

Responding to Incidents That Could Contaminate Plumbing Systems

Outbreaks of Legionnaires’ disease have been associated with situations – water main breaks, construction, opening of backup water feeds – that have presumably sent contaminants into a building domestic (potable) water system or dislodged biofilm from piping. Such...

Quotes From Legionnaires’ Disease Survivors

"I went to sleep on May 4, hardly able to breathe. That's pretty much all I remember until I woke up on June 3rd. My wife advised me I was on life support for almost a month and it looked very grim at times. This disease almost killed me." T.C. "I had LD in 1997:...