Nearly 40 years after Legionnaires’ Disease first gained public attention, the disease remains common throughout the world.
As a result, ASHRAE continues work on what would be the first set of standardized requirements specific to the building industry for management of the risks associated with amplified growth of and exposure to Legionella.
Standard 188P, Legionellosis: Risk Management for Building Water Systems, currently under development, will identify risk factors for growth and exposure along with measures to mitigate that risk. The standard will help facility managers and building owners understand how to evaluate the design and operation of their building water systems to reduce the risk of Legionellosis.
Tom Watson, chair of the Standard 188P committee, says he is optimistic that a fourth public review draft will be approved and made available during the summer.
“The new version of the standard will provide the building community with reasonable and practical methods to control exposure to the bacterium that could cause harm,” Watson said. “Effective design, maintenance, and operational procedures that avoid amplification and dissemination of Legionella are necessary throughout the life of a building to reduce the risk of the disease.”
Watson highlighted several changes that may be part of the upcoming public review draft. They include:
- Removal of Hazard Analysis and Critical Control Points terminology
- Environmental Legionella testing considerations
- Revision of the standard to align with recently approved changes to the standard’s title, purpose, and scope, chiefly around systematic management of risks associated with potential exposure to Legionella
Watson noted that standards under development are not available for use by anyone and proposed language is made available during public reviews for the purpose of commenting only.