Updated
Updated · WPR · Jul 2
3 Sturtevant Residents Sue Microsoft Over Noise at New Mount Pleasant Data Center
Updated
Updated · WPR · Jul 2

3 Sturtevant Residents Sue Microsoft Over Noise at New Mount Pleasant Data Center

3 articles · Updated · WPR · Jul 2

Summary

  • Three Sturtevant residents filed a class action Wednesday in federal court, alleging Microsoft's newly operational Fairwater data center creates unreasonable, excessive noise that damages nearby properties and constitutes private nuisance and negligence.
  • The suit says diesel generators and HVAC equipment—including chillers, cooling towers, air-handling units and condenser fans—produce a constant low hum, including low-frequency infrasound that residents say standard dBA measurements do not capture.
  • Microsoft said it is aware of the lawsuit and has tried to address the issue; its April and June project updates said cooling fans caused the tonal humming sound and that engineers tested the site and installed noise mitigations.
  • Mount Pleasant's village spokesperson said no formal complaints have been filed since Microsoft made mid-April adjustments, even as nearby residents continue to cite construction dust, bright lights, truck noise and traffic around later project phases.
  • The dispute lands just after Fairwater opened as the first building in a larger campus project that Microsoft says has involved nearly 10,000 construction workers and now supports about 550 full-time on-site employees.

Insights

Microsoft says its AI data center noise is fixed. So why are 1,000 households now suing?
If a data center meets legal noise limits, why does it still sound like a nearby freight train?
Wisconsin offered billions in tax breaks for data centers. Is the hidden cost community health?