Environmental Science & Technology – The first national study documenting the occurrence and colonization of the bacteria that causes Legionnaires’ Disease in point of use cold water taps has been published. Conducted by EPA, the study found that nearly half of water faucets recently sampled in 2009 and 2010 tested positive for the bacteria.

Legionnaire's Disease in Cold Water Taps

It was a small study—researchers collected 274 water samples from 68 public and private water sources such as kitchen sinks and drinking fountains but they found that 32 taps contained the bacteria and 11 of those contained it in multiple samples.

The study was published on February 18th in Environmental Science & Technology magazine.