Fire at $3.2B Lake Mariner AI data center exposes safety and corporate complexity
A fire in early June at the unfinished Lake Mariner data center in Somerset, New York, revealed significant gaps in emergency preparedness. Firefighters from the Barker Fire Department entered the building without working alarms, functional suppression systems, or accessible safety documentation, forcing them to navigate heavy chemical smoke "blind." The incident highlights the operational risks…
Key points
- Firefighters faced no alarms, suppression systems, or safety sheets during a June blaze at the Lake Mariner data center.
- The $3.2 billion facility involves TeraWulf, Fluidstack, Google, and Anthropic in a complex ownership and lease agreement.
- Local fire chief reports that critical hydrants remained non-functional weeks after the incident and subsequent safety review.
The $3.2 billion facility, built on a former coal mine site, involves a complex web of stakeholders. TeraWulf owns and operates the site on land leased from a company owned by its CEO. Fluidstack, a UK-based AI firm, will manage the center, while Google holds warrants for a 14% equity stake and guarantees Fluidstack’s lease. Anthropic is listed as a key customer for the compute resources. TeraWulf claims responsibility for safety and states it has implemented improvements like Knox boxes and additional hydrants following an after-action review.
However, local fire chief Steve Matisz reports that critical infrastructure issues remain unresolved. As of mid-August, he stated that the hydrants were still dry and no visible work had been done to fix them. The incident underscores the tension between aggressive AI buildout timelines and local safety regulations, raising questions about accountability in multi-layered corporate structures.
The complex corporate web behind a $3.2 billion AI data center
Ars Technica AI · 7 September 2026
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