CHEYENNE, Wyo. — The Cheyenne Board of Public Utilities (BOPU) has permanently terminated sewer discharge privileges for Goat Systems LLC, the entity developing an 800,000-square-foot data center campus in the city’s High Plains Business Park, after tracing a bacterial contamination in the municipal wastewater reuse system back to the company’s site.
Goat Systems is the shell entity Meta Platforms Inc. used to advance land and site-application agreements for the project publicly known as Project Cosmo, a 945-acre development between Clear Creek Parkway and South Greeley Highway.
The site was approved by the Cheyenne City Council in late 2023, though the developer was not publicly identified at that time. Meta was confirmed as the company behind the project in 2024.
Contamination traced to industrial user (Data Center)
BOPU laboratory staff flagged an unusual organism during routine wastewater sampling in late February, with follow-up testing by the Wyoming Public Health Laboratory identifying it as Cupriavidus gilardii. The organism occurs naturally in soil and groundwater, shows high resistance to metals, and has been linked to industrial processes involving metal reduction, including advanced manufacturing systems. Documented human infections remain rare worldwide, though the bacterium can pose an exposure risk to immunocompromised and elderly individuals.
Out of caution, BOPU delayed activating its seasonal wastewater reuse system and began tracing the contamination source. An initial inquiry to the Wyoming Department of Environmental Quality did not identify the origin; subsequent field investigation and targeted sampling by BOPU staff pointed to the Goat Systems site as the industrial user responsible. The board stated the company’s discharge privileges were immediately and permanently terminated, and Goat Systems has been barred from city sewer access since March 24. BOPU also issued the company a Significant Noncompliance Violation Notice.
Systemwide response and remediation
BOPU staff drained and disinfected the reuse water system and the city’s Prairie View retention pond to clear residual bacterial presence. The Dry Creek and Crow Creek water reclamation facilities, both affected by the discharge, returned negative test results for the bacterium by June 26, and the city resumed reuse-system operations for the season on June 29.
In response to the incident, BOPU said it will suspend acceptance of industrial discharges tied to data center fill-and-flush operations and closed-loop cooling systems citywide until further notice, a step that affects every data center currently connected to Cheyenne’s utility infrastructure, not just the Goat Systems site.
Disclosure timeline draws scrutiny
BOPU did not publicly disclose the contamination until roughly four months after its initial detection, citing legal review tied to customer privacy protections before naming the responsible party. BOPU administrative and public affairs coordinator Erin Lamb said the source was “new to us” and that the utility’s sampling protocol flagged the organism as unusual enough to warrant state lab confirmation, a process that took one to two weeks.
The delay in naming the polluter drew public criticism. Cheyenne resident and House District 9 candidate Exie Brown publicly called on BOPU to release the identity of the industrial user and to guarantee that ratepayers would not bear remediation costs.
Regulatory and industry context
BOPU noted that hazardous discharges into the sanitary sewer system are prohibited under its Industrial Pretreatment Program, with violations carrying fines, damage liability, and potential disconnection.
The incident places renewed regulatory attention on hyperscale data center wastewater practices in Wyoming, a state that has drawn a wave of hyperscale investment tied to fill-and-flush and closed-loop liquid cooling systems. Cheyenne’s decision to pause industrial discharge acceptance for all connected data center facilities, rather than only the cited operator, signals a broader compliance review as additional large-scale campuses move through permitting and construction in the region.
References
References
Cap City News — original reporting
Wyoming Tribune Eagle / wyomingnews.com — “BOPU: Industrial user discharged bacterium into city sewer system”
Cowboy State Daily — “Cheyenne Officials Haven’t Said Who Polluted Its Reuse Water System”
Cowboy State Daily — Video Newscast, July 1, 2026
Cap City News — “Nearly fully recovered from bacteria contamination, wastewater system back online June 29”
KGAB — “Cupriavidus gilardii bacterium raises concerns in Cheyenne’s wastewater management efforts”
Wyoming News Now (wyomingnewsnow.tv) — “Resident calls on Board of Public Utilities to release name of wastewater polluter”
Data Center Dynamics — “Meta named as company behind 945-acre data center development in Cheyenne, Wyoming”
Baxtel — “Meta: Cheyenne Data Center”
