Looking to reduce the 8,000 to 10,000 cases of Legionnaires’ Disease that are reported in the U.S. each year, of which 10% are fatal, ASHRAE has released a new standard to protect building water systems from the legionella bacteria. In addition to Legionnaires’ Disease, the water-borne pathogen can also cause less-serious illnesses such as Pontiac Fever, and most U.S. infections are caused by exposure to Legionella in building water systems.
ANSI/ASHRAE Standard 188-2015, Legionellosis: Risk Management for Building Water Systems is designed to be used in human-occupied facilities during all part of a building’s lifecycles from design to operations and maintenance. The standard’s requirements include:
- Minimum risk requirements for facilities and associated potable and non-potable water systems.
- The establishment of a team and a water management program to ensure compliance with the standard.
- Specific requirements for what the Legionellosis management strategies must achieve and how efforts must be documented, though specific strategy use and application are not mandated by the standard.