Auditing for Building Water Health

  • Overview
  • Why Work With NSF?
  • Process

Our building water health program can help you maintain your buildings more safely and effectively through our comprehensive auditing service. Our personalized training and education services ensure your staff is fully trained to put in place a water safety plan that will be audited by NSF.

What is included in building water health?

  • Potable water systems
  • Heated whirlpools, spas and hot tubs
  • Architectural fountains and waterfall systems
  • Cooling towers and evaporative condensers
  • Misters, air washers and humidifiers
  • Air handling equipment as it is integrated into the water system

What are the benefits of our independent, third-party auditing program?

  • Reduces the risk of Legionella for people in the environment around the building
  • Reduces liability in litigation cases
  • Bases staff performance on current best practices
  • Improves maintenance which extends equipment life
  • Improves staff training and education

Our program can also help you comply with New York City, New York state and other regulations for cooling towers.

To learn more, contact us at

Why Work With NSF?

NSF is a pioneer in the water quality industry and has been working to protect public health and safety since 1944. We leveraged our long history in water science and our partnerships with building and industry experts to create an efficient building water health program that will help our customers reduce liability and manage risk. By developing specialized, customizable training programs, we help building staff implement best practices, and by providing independent audits, we document their proper implementation.


The process of working with NSF on this program involves these steps:

  1. Your company submits an application.
  2. Your program team is trained in the site-specific requirements of the standard.
  3. Your company provides all of the necessary information documenting your program plan.
  4. NSF reviews and audits your program plan.
  5. Upon acceptance, you agree to fully implement the plan and maintain all records of implementation.
  6. NSF conducts quarterly audits, including site audits, to verify implementation of your plan and confirm your continued participation in the auditing service.

Contact NSF International

  • Mailing List

  • Or contact the nearest NSF location
  • [x] Close