Deadly Bacteria in Cheyenne Water Traced to Meta's $800M AI Data Center

Meta is under fire after a rare, potentially deadly bacterium was traced to wastewater discharged during construction of its $800 million AI data center in Cheyenne, Wyoming. The contamination has forced months of cleanup and a policy shift on how the city handles industrial water from data centers.

What happened

Cheyenne's Board of Public Utilities said the bacterium was found in wastewater discharged by Goat Systems, a contractor working on Meta's $800 million data center. The contamination, first discovered in February, originated from Meta's data center campus in south Cheyenne, an $800 million project spanning nearly 800,000 square feet known during development as Project Cosmo.

According to the BOPU, the bacterium was first detected during routine wastewater sampling in late February, but was only announced last Thursday. Officials noted that it took months of investigation to determine who was behind the contamination.

The bacterium in question

Known as Cupriavidus gilardii, the naturally occurring bacterium is typically found in soil and water. While harmless to most healthy people, it can cause severe pneumonia, bloodstream and lung infections, and, in rare cases, death among people with weakened immune systems.

The contamination was traced to wastewater generated during data center fill-and-flush operations, a standard process used to clean and test cooling systems before facilities become operational.

Meta's response

Meta said its general contractor, Fortis, began hauling industrial wastewater offsite and that independent testing found no trace of the substance to date. City officials had discovered the rare bacterium in wastewater near the project, forcing two water reclamation plants to be pushed offline.

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Why it matters for AI infrastructure

The broader suspension of accepting industrial wastewater from all data center fill-and-flush and closed-loop system operations represents a significant policy shift as officials evaluate prevention measures for future incidents.

That is the trade angle. Water, power, and permitting are becoming the real bottlenecks for the AI buildout, and one contamination event in a single Wyoming town can now translate into new rules that every hyperscaler has to plan around. For more, see other news here.

Options market and stocks to watch

Watch for reactions across the names most tied to the AI data center capex cycle:

META: watch for any headline drag or commentary on data center siting, water usage, and community relations as Project Cosmo comes online next year.

NVDA: watch for read-throughs on data center build timelines, since permitting and utility friction can push out GPU deployment schedules.

MSFT and GOOGL: watch for how peers with their own hyperscale campuses respond to tightening local wastewater rules.

AMZN: watch AWS commentary on data center water and power constraints, a growing theme across the AI capex trade.

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