Summary

• Three Sturtevant residents filed a federal class action seeking damages and further noise reductions.
• The complaint attributes alleged offsite noise to cooling fans, chillers, cooling towers, air-handling units, condenser fans, and diesel generators.
• Residents say the sound is persistent and affects sleep, outdoor activities, property values, and the area’s rural character.
• Microsoft says the facility met local noise requirements and that engineering teams and consultants addressed a tonal hum from cooling equipment.
• The company reported mitigations in April and June and plans to install additional sound-reduction components over the following months.
• Mount Pleasant officials say they received no formal complaints after the adjustments, although construction and later campus phases continue.
• Microsoft’s first facility is operational, while additional buildings are planned or under construction at the campus.