New York City officials confirmed on Sunday that a cooling tower at Yankee Stadium tested positive for Legionella bacteria. The finding places the stadium among ten cooling towers in the South Bronx that have been ordered to undergo cleaning and disinfection, according to the city.
The city’s health department has been conducting extensive testing of cooling towers across the borough following earlier Legionella outbreaks. The recent results prompted officials to issue remediation orders for the identified towers, requiring thorough decontamination procedures to eliminate the bacteria.
Yankee Stadium, located in the Bronx, is one of the most frequented venues in the city, hosting thousands of fans for baseball games and other events each year. The presence of Legionella in its cooling system raised concerns about potential exposure for visitors and staff, leading the city to act swiftly to mitigate any health risks.
City agencies have outlined a standard protocol for addressing contaminated towers, which includes draining the water, applying approved disinfectants, and conducting follow-up testing to verify that the bacteria have been eradicated. The same process will be applied to the other nine towers identified in the South Bronx.
The broader testing initiative is part of a citywide effort to prevent future Legionella incidents. After previous outbreaks that affected residents in other neighborhoods, officials have increased surveillance of cooling systems in high‑risk areas. The goal is to identify contamination early and ensure that remediation steps are taken before any illnesses occur.
Residents and patrons of Yankee Stadium have been advised that the cleaning and disinfection work will be completed as quickly as possible, with minimal disruption to scheduled events. The city will continue to monitor the situation and provide updates as the remediation progresses.
The discovery underscores the importance of regular maintenance and testing of cooling infrastructure in densely populated urban settings, a priority that city officials say will remain a focus in the months ahead.