In a significant move to safeguard public health and environmental integrity, officials in Cheyenne, Wyoming, have tightened wastewater disposal regulations after a contractor for Meta, the tech company founded by Mark Zuckerberg, inadvertently discharged contaminated water into the city’s sewage system. This incident, which occurred during the construction of a new artificial intelligence datacentre, has raised serious concerns about the impact of such facilities on local water resources.
Contamination Incident Sparks Regulatory Change
The troubling episode came to light in February 2026, when routine wastewater testing revealed the presence of the bacteria Cupriavidus gilardii in water being released from the cooling system of the expansive datacentre campus known as Project Cosmo. This facility, spanning an impressive 800,000 square feet in the High Plains Business Park, was under construction by Goat Systems LLC, a contractor based in Delaware.
In response to the contamination, the Cheyenne Board of Public Utilities (BOPU) took decisive action, permanently revoking Meta’s permission to discharge wastewater into the city’s treatment facilities, which are crucial for recycling and irrigation purposes. Frank Strong, BOPU’s engineering and water resource division manager, indicated that the city would now enforce a new policy prohibiting wastewater discharges from datacentres employing closed-loop cooling systems—techniques that circulate purified water to eliminate construction debris and contaminants.
Meta’s Commitment to Community Safety
Despite the gravity of the situation, Meta has emphasised that the contamination did not compromise the city’s drinking water supplies. An independent environmental assessment conducted by the contractor found no remaining traces of the bacteria, which is typically harmless to healthy individuals but can pose serious risks to those with weakened immune systems. A spokesperson for Meta stated that the company took immediate action upon learning of the contamination, halting discharges and ensuring close collaboration with local authorities.
“Meta is committed to being a good neighbour in Cheyenne, including through the protection of local water resources,” the spokesperson affirmed. This commitment is particularly critical as public sentiment around the datacentre’s construction had already been souring, fuelled by concerns over the environmental impact of such resource-intensive facilities.
Growing Opposition to Datacentre Development
The contamination incident has intensified scrutiny of datacentre operations across the United States, where nearly 4,500 facilities are in operation, some consuming as much as 300,000 gallons of water daily—equivalent to the needs of approximately 1,000 households. Opposition groups are increasingly vocal about the strain these establishments place on local resources, particularly in the context of Wyoming’s often delicate environmental balance.
Before the contamination issue, Cheyenne had already seen a surge in public opposition to the Project Cosmo mega datacentre. Locals and environmental advocates had voiced concerns about the safety and integrity of closed-loop cooling systems, which are designed to minimise water use but can still pose risks if not managed properly. The new regulations instituted by Cheyenne now mandate that any such systems must include dedicated collection systems, directing wastewater away from the city’s sewer lines to secure offsite disposal.
Why it Matters
This incident serves as a stark reminder of the complex relationship between technological advancement and environmental stewardship. As the demand for datacentres continues to soar in our increasingly digital world, it is imperative that companies prioritise sustainable practices and transparency in their operations. The regulatory changes enacted by Cheyenne reflect a growing recognition of the need to protect local resources while accommodating technological growth. In an era where water scarcity is becoming a pressing global issue, the balance between innovation and environmental responsibility has never been more critical.