In a notable development related to the expansion of Artificial Intelligence (AI), a construction project for a new data center has contaminated a city's water supply with a rare bacterium. The growing demand for AI services has prompted companies worldwide to build data centers at an unprecedented pace, raising various environmental concerns. One such issue recently came to light in Cheyenne, Wyoming, close to the Colorado border, where a strain of bacteria known as Cupriavidus gilardii was identified in the city’s reclaimed water system.
This contamination was linked to wastewater from the ongoing construction and initial operations of a Meta AI data center, detected in February. As a precaution, city officials temporarily shut down parts of the reclaimed water system to address the situation and conduct remediation measures.
Cupriavidus gilardii is a type of environmental bacterium typically found in soil and water, with infections being quite rare and primarily affecting individuals with pre-existing health conditions or weakened immune systems. Some strains may also show resistance to multiple antibiotics, complicating treatment options.
The contamination incident was tied to the "fill-and-flush" procedure, a cleaning method employed for large cooling systems before they start operation. Officials clarified that the bacterium was only found in non-potable water used for irrigation, not in drinking water. However, there were concerns about potential exposure for residents, especially through aerosolized droplets in public spaces like parks and golf courses.
According to a representative from Meta, the company is actively collaborating with contractor Fortis to resolve the issue. The spokesperson noted that upon discovering the contaminant in wastewater—distinct from drinking water—Fortis immediately halted any further discharges of industrial wastewater and began transporting it off-site. They also initiated independent water testing through an environmental expert, who reported no signs of the bacteria.
This incident marks the first publicly acknowledged case linking an AI data center to a microbial contamination event. Previous instances of large-scale cooling systems have been connected to outbreaks of Legionnaire’s disease, which can occur when bacteria such as Legionella proliferate in poorly maintained water systems, leading to respiratory infections when inhaled. The New York City health department is currently investigating a recent outbreak in which 36 individuals have fallen ill, with 22 requiring hospitalization.
While this situation doesn’t establish AI data centers as a new threat for infectious diseases—particularly as the Cheyenne case originated from construction-related wastewater rather than regular operational activities—it underscores the broader implications of rapidly expanding AI infrastructure. As communities grapple with the effects of such growth, including noise pollution and health concerns, the Cheyenne contamination serves as a crucial reminder for all stakeholders to consider public health when planning and operating these facilities.
