NY Legionella Laws for Cooling Towers - City & State Comparison Chart

Posted by Greg Frazier on Tue, Aug 23, 2016 @ 01:45 PM


Are the New York City and New York State Cooling Tower Laws confusing you? You are not alone. We get dozens of calls asking which law applies to which location and when. While we cannot offer legal advice on how you should interpret the laws, we can offer you some assistance in navigating them for yourself.

Below we have put together a Side-by-Side Comparison of the Requirements that have been laid out in New York City and State Legionella Laws and, in some cases, must be accounted for in your Legionella Maintenance Program and Plan. This simple to read chart is intended to help you and your team navigate the new legionella laws. Keep in mind: It is not intended to be a substitute for reading the actual laws. If you are unfamiliar with the New York City and New York State Legionella Laws, you can download them here:  

Download Your FREE Copy of The NY City and State Combined Legionella Laws for Cooling Tower Owners

Why Do We Need Cooling Tower Laws?

Water treatment industry professionals have been warning about the dangers of legionella since the Philadelphia outbreak of 1976 that gave the legionella bacteria its name; a convention of the American Legion held at the Bellevue-Stratford Hotel. Those who were affected suffered from a type of severe pneumonia (lung infection) that eventually became known as Legionnaires’ disease. Since then Legionella has been suspected in thousands of lung infections and pneumonia related deaths throughout the United States; but not until 2015, almost 40 years later, has there been any sweeping laws passed to protect the public from illness or death caused by Legionella.

That all changed in New York City last year, in the summer of 2015. By mid-July the New York City Department of Health and Mental Hygiene were aggressively investigation the source of a suspected legionella outbreak that would sicken 133 people and eventually claim the lives of 16 of them. Cooling towers capable of transmitting the bacteria were tested throughout the city, but the DOH had a problem; there were no easily accessible records of all the cooling towers in NYC.

Cooling tower water treatment and maintenance was not regulated in New York, or anywhere in the United States prior to July 2015; but New York City’s outbreak in the South Bronx called for legislative action. Both the New York City AND New York State initially passed emergency regulations to register and address all cooling towers throughout the City and State. By July of 2016, both New York City and New York State had passed sweeping cooling tower laws meant to protect the public and which carry severe penalties for their disregard.

New York State has New York Codes, Rules and Regulations, Title 10 – Part 4: Protection Against Legionella which given its power by Statutory Authority: Public Health Law, section 225(5)(a). New York City Passed Local Law 77 or 2015 and codified its regulations with a new Chapter 8 (Cooling Towers) of Title 24 of the Rules of the City of New York.

Has There Been Cooling Tower Legislation Passed in Other States?

At the time of the post, we know of no other state that has passed cooling tower regulations that are as significant as the ones found in New York; however, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) did publish a standard that establishes the minimum legionellosis risk management requirements for building water systems. While a standard is not a law, it does provide public guidelines that become harder to ignore in the event of an outbreak. Now that ASHRAE Standard 188 has by published, it is not unreasonable for it local building departments throughout the United States to incorporate it into their bylaws and regulations. In fact, ASHRAE Standard 188 is specifically named as a resource in both the New York City and State Cooling Tower Laws.  

The New York City & State Legionella Law Side-by-Side Comparison Chart

The City and State laws are very similar; however there are some significant differences. While we encourage everyone to read the City and State laws, we have put together an easy to follow side-by-side comparison of the major requirements. You may download our free side-by-side chart below. Please note: This is not a legal document and we are not offering any legal advice. We recommend that you read the actual City and State laws for yourself and, if appropriate, seek the guidance of a professionally qualified entity to correctly determine the proper steps that you need to take in order to stay in compliance with the law.

If you need assistance in New York City or State with your cooling tower testing, water treatment, disinfection or Maintenance Program and Plan (MPP), please do not hesitate to contact us: 888-616-3545

Good luck and thanks for reading! Here's your link:

Download NY City and State Cooling Tower Laws Side by Side Comparison Chart 


Commercial and Industrial Water Treatment ServicesClarity Water Technologies is known throughout the east coast as an innovative industrial/commercial water treatment company and the innovators of 360 Degree Legionella Management Service. To put it simply: As New York City's Top Environmental Consultants, we make commercial HVAC and industrial process machinery last longer and run more efficiently, with less fuel and less downtime, by chemically treating the water that runs through it. Typical systems that we treat include steam boilers, chillers and cooling towers; however, we also offer advanced wastewater, glycol services, odor control and fuel treatment services. We are one of Northeast’s most trusted Legionella remediation companies and are widely accepted as one of the best consulting firms to establish best practices for the implementation of ASHRAE Standard 188 - Legionellosis: Risk Management for Building Water Systems.

As environmental consultants specializing in water treatment, we know that chemistry is only one part of what makes a cooling tower system operate at peak performance. The other part of the equation is proper physical cleaning, disinfection and maintenance. Today, Clarity offers one of the most reliable and effective cooling tower disinfection services available throughout NY, NJ, CT, DE, MD and PA. Clarity is a NADCA Certified HVAC Cleaning Service Company. Our team also offers on-line cleanings, chlorine dioxide disinfection, Legionella remediation and installation of the EcoSAFE Solid Feed System—one of the most advanced water treatment systems for Cooling Towers in the world! Please contact us today for a free estimate on your next project.

Greg_Frazier_Industrial_Water_Treatment_ProviderNew York Water Treatment Professional and Environmental Consultant, Greg Frazier has a vast knowledge of Industrial Water Treatment and is currently the Managing Partner of Clarity Water Technologies, one of the top Water Treatment Companies in the United States. Mr. Frazier has over 19 years of Industrial Water Treatment experience and holds a degree in Chemical Engineering from the University of Tennessee. Clarity Water Technologies specializes in comprehensive water treatment services. Clarity's service goes far beyond administering Cooling Tower Water Treatment chemicals - it also includes Cooling Tower Maintenance and HVAC Cleaning Services.

Tags: Cooling Tower Water Treatment, New York Cooling Tower Law, Legionella, Legionella Water Treatment, new york legionella laws, Water Management Plan, Chapter 8 Title 24 RCNY, NYCRR Title 10 Part 4, Legionella Risk Assessment, Maintenance Program and Plan