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Agency Testimony

Commissioner Martin on cooling tower oversight and compliance framework

New York City Council · Sep 2, 2026 · starts 0:57:39 · 2 min 22 sec

Martin outlines the multi-layered oversight system: owner responsibilities, monthly Legionella sampling, DOHMH inspections, and enforcement. He notes NYC has the most comprehensive cooling tower program in the US, strengthened after the 2015 South Bronx cluster.

Commissioner Martin

At the Health Department, our work is to try to prevent

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

clusters like these from happening.

Commissioner Martin

And that work is about oversight.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

Ultimately, it is up to individual building owners to comply with the legislation this council creates.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

To enforce those laws, we create targeted regulations and educate, train, and provide guidance to building owners with cooling towers.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

We conduct inspections to promote compliance and mitigate risk.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

When owners are not meeting their obligations, we hold them accountable.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

The owners of buildings that house the more than 5,000 cooling towers in our city are responsible for monitoring, maintaining, and remediating

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

building equipment when necessary to reduce the risk that Legionella bacteria will grow.

Member of the Public - Valerie Mason

They should have as much information as those who are comfortable with it.

Commissioner Martin

Over the past decade, New York City has stood up and enforced the most comprehensive cooling tower program in the United States.

Member of the Public - Valerie Mason

If you live or work in a building with a cooling tower, your landlord should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

I'm grateful to Chair Shulman, I'm grateful to the members of this council for the collaborative effort to create Legionnaires risk mitigation laws that serve as a model for the world.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

That legislative process began in earnest in the 2015 cluster in the South Bronx, which sickened 138 people and killed 16.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

After subsequent clusters, including the one in Central Harlem last summer, City Council has repeatedly amended and tightened those regulations.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

The latest revision of our oversight program is a local law that took effect on May 8th of this year.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

The central change of the local law was to increase the frequency of legally mandated Legionella tests of cooling towers that owners must conduct from once every 90 days to once every 31.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

While the law did not take effect until May,

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

We began preparing for that new requirement to take effect in the winter of 2025.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

That included updating our online guidance materials for cooling tower compliance, contacting owners of thousands of registered cooling towers to inform and later remind them of the coming changes,

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Commissioner Martin

issuing a press release when the regulations took effect,

Commissioner Martin

providing individualized phone consultations with owners, reviewing the upcoming requirement at inspections, and holding three training sessions on testing practices.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.

Member of the Public - Valerie Mason

We were overwhelmed with inquiries about whether people should be able to go to the Upper East Side.