HVAC Applications: Evidence Shows Need to Address Pathogenic Bacteria in U.S. Drinking Water Systems

Thiscolumn explores three recent studies that investigated the presence of Legionellain downstream water systems, including sediments in municipal drinking waterstorage tanks (MDWST) with 1 to 5 million gallon (3.8 to 19 million L)capacity, point-of-use cold water taps, and cooling towers.