DataOne, a New Jersey data center linked to Microsoft, discharged massive quantities of nitrogen oxides (NOx) pollution for nearly a year before state regulators intervened, according to recent public records obtained by Floodlight. The facility in Vineland operated 62 unpermitted gas-fired generators that emitted an estimated 140 tons of NOx during 2025 alone, ranking it among New Jersey’s top air polluters. This delayed regulatory response has raised alarms among environmental advocates and local residents concerned about health impacts and inadequate oversight.
Why this matters
Nitrogen oxides are among the most hazardous air pollutants, contributing significantly to smog formation, respiratory illnesses, heart disease, and premature death. Facilities emitting over 25 tons annually are classified as major sources under New Jersey law and subject to stringent permitting and pollution controls. DataOne’s generators reportedly emitted well beyond this threshold, potentially releasing more than 1,500 tons of NOx annually if operated at full capacity—nearly twice the allowable emissions of New Jersey’s largest NOx source, Linden Cogeneration power plant.
This case highlights how rapidly growing data infrastructure, essential to the digital economy and cloud services, can also have substantial environmental costs if not adequately regulated. The inability or delay of state agencies to promptly identify and address unpermitted emissions threatens community health and offsets decades of air quality improvements in the region.
What is happening
DataOne’s Vineland data center deployed 62 tractor-trailer-sized gas generators beginning in mid-2025 without obtaining required state environmental permits. Public records show 16 generators started operating in October 2025, another 16 in early 2026, and full operation by June 2026. Despite local complaints and noise violations documented since early 2026, New Jersey Department of Environmental Protection (NJDEP) only discovered the full scope of the unpermitted fleet during a site inspection in late July.
Analyzed by experts consulted by Floodlight, the fleet’s emissions totaled roughly 140 tons of NOx in 2025 alone and could peak at more than 1,500 tons annually if operating at capacity—far exceeding state permit limits for new major sources.
Local residents like Tiffany Leone-Vespa describe the generators' noise as akin to airplanes hovering behind their homes and express concern about lasting health effects on their families due to prolonged exposure. Over 100 noise complaints since March 2026 have been filed to local health officials. Meanwhile, DataOne disputes the fine imposed by NJDEP and plans to apply for permits retroactively. The firm has committed to transitioning the site to lower-emission fuel cell technology over time.
What readers can take away
- Rapid expansion of digital infrastructure can produce significant environmental impacts if not properly monitored and regulated.
- Air pollutants like NOx contribute to serious health risks, including respiratory and cardiovascular diseases.
- Community input and complaint mechanisms play a critical role in highlighting environmental hazards often missed by routine inspections.
- Rigorous permitting processes exist for a reason: to protect public health and ensure pollution control technology is employed.
- Transitions to cleaner power sources, like low-emission fuel cells, are promising but must be transparent and promptly implemented.
What to watch next
New Jersey regulators have mandated DataOne to apply for the necessary environmental permits within 45 days or face potential shutdown of the generators. During this period, the facility is allowed to continue operating the unpermitted fleet, which may continue to emit significant pollution. The outcome of this permitting process and whether DataOne can comply with environmental requirements will be key indicators of regulatory effectiveness and corporate responsibility.
Additionally, independent air quality monitoring by community groups or environmental agencies in Vineland could provide clearer data on ongoing emissions and public health risks. The broader policy decisions around permitting and oversight for expanding data center infrastructure across the U.S. will also remain an important area to watch.
FAQ
Why are nitrogen oxides (NOx) harmful?
NOx gases are significant contributors to smog, which damages respiratory health, exacerbates asthma, and increases risks of heart attacks and premature mortality. They react in the atmosphere to form ground-level ozone and fine particulate matter, which are linked to widespread health problems.
Why did DataOne operate generators without permits?
The exact reasons remain unclear, but DataOne initially argued the generators did not require permits. Regulatory agencies found no permits during inspections and have since fined the company $1 million. DataOne has now agreed to apply for the required permits while aiming to shift to cleaner technology.
How have local residents been affected?
Residents near the Vineland facility have reported months of loud generator noise, describing it as airplane-like, and express concerns about potential long-term health impacts from air pollution. Noise complaints and health department inspections confirm ongoing disturbances linked to the generators.
Original source: read more here.
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