In a move to bolster public health and environmental safety, Wyoming’s Cheyenne Board of Public Utilities has introduced stringent new regulations on wastewater disposal following a significant incident involving a contractor for Meta, the tech giant led by Mark Zuckerberg. The new rules come in the wake of a reported contamination of public sewers with bacteria during the construction of an expansive AI datacentre, raising alarm about the environmental impact of such facilities.
Contamination Incident Sparks Regulatory Action
In February 2026, routine testing revealed the presence of the bacteria Cupriavidus gilardii in wastewater discharged from the cooling systems of the new datacentre, known as Project Cosmo, located in the High Plains Business Park. The source of the contamination was traced back to Goat Systems LLC, a contractor involved in the construction of the 800,000 square-foot facility. As a result, city officials permanently revoked Meta’s permission to discharge wastewater into Cheyenne’s treatment facilities, which recycle water for public use, including irrigation in parks.
In response to the incident, the Cheyenne Board of Public Utilities has implemented a new policy that prohibits wastewater discharges from datacentres employing closed-loop cooling systems and fill-and-flush methods. These systems, which are designed to circulate purified water for cleaning purposes, were deemed a significant risk for public health. Frank Strong, the board’s engineering and water resource division manager, emphasised that the contamination posed potential health risks, especially when aerosolised during irrigation.
Meta’s Response and Commitment to Compliance
Meta has publicly expressed its commitment to being a responsible community member. Following the discovery of the contamination, the company instructed Fortis, its general contractor, to halt all discharges of industrial wastewater and to begin transporting it off-site for disposal. A spokesperson for Meta stated, “Fortis also began its own water testing with an independent environmental specialist, which has found no trace of the substance.” While the company assured that drinking water supplies were not affected, the incident has intensified scrutiny on the environmental practices of large tech firms.
Despite these assurances, public concern remains high regarding the implications of large-scale datacentres on local resources. The backlash against Project Cosmo has been mounting, with critics questioning the sustainability of such resource-intensive operations amidst environmental challenges.
Broader Implications for Datacentre Development
The contamination incident in Cheyenne is not an isolated occurrence; it reflects a growing national trend of opposition to the establishment of datacentres, which are often criticised for their excessive water and energy consumption. According to Data Center Map, there are nearly 4,500 datacentres across the United States, some of which consume up to 300,000 gallons of water daily—equivalent to the needs of around 1,000 households. Such demands on local resources have sparked a movement among environmental activists and community members advocating for stricter regulations on water usage and waste management.
The new regulations in Cheyenne represent a significant step towards addressing these concerns. Companies utilizing closed-loop cooling systems will now be required to construct separate collection systems that divert wastewater from cooling equipment into storage tanks for appropriate off-site disposal, rather than discharging it into the municipal sewer system.
Health Risks and Environmental Accountability
Cupriavidus gilardii, while naturally occurring, is classified as an “opportunistic pathogen.” It poses health risks primarily for individuals with compromised immune systems or pre-existing health conditions. A study published in the International Journal of Infectious Diseases highlighted the dangers associated with this bacterium, noting rare but serious cases of infection. Frank Strong expressed the board’s concerns regarding the potential health implications of aerosolising contaminated water during irrigation.
The incident has ignited discussions on the need for more robust environmental safeguards in the rapidly evolving tech landscape. As the demand for datacentres continues to rise, so too does the responsibility of tech companies to ensure their operations do not come at the expense of public health and environmental integrity.
Why it Matters
This incident serves as a crucial reminder of the delicate balance between technological advancement and environmental stewardship. As communities grapple with the implications of resource-intensive datacentres, the regulatory measures taken in Cheyenne could set a precedent for stricter oversight across the nation. The call for accountability from tech giants is louder than ever, and the actions taken now will shape the future of sustainable development in an era increasingly defined by artificial intelligence and digital infrastructure. It is imperative that we hold these companies accountable to protect our water resources and safeguard public health.
