San Jose Mayor Matt Mahan visited South San Jose on Wednesday night to hear firsthand the noise and bright lights that residents say are coming from nearby data centers along Great Oaks Boulevard. Neighbors, including Denisa and Jay Filichia, said the hum worsens as temperatures rise and that the disturbance comes from facilities separated from their property by only a few roads and train tracks. Mahan proposed requiring data centers with access to the city's recycled water network, called the purple pipe, to connect to that system, and said he would work with operators to address noise through insulation or fan shielding. The city plans to hold a series of town halls before bringing proposed new standards to the San Jose City Council in December.
San Jose's process, moving from resident complaints to a mayoral site visit to a December council vote on new standards, reflects a regulatory cycle now playing out in cities across the country as data center construction accelerates into established residential areas. The mayor's specific proposal to mandate purple pipe connections links local data center regulation directly to municipal water infrastructure planning, a policy linkage with potential cost and capacity implications for both the city and operators.
A sitting mayor being drawn into direct community meetings over data center noise signals escalating neighborhood pressure in a major tech hub, with potential policy consequences for permitting in the region.