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Residents urge county to halt hyperscale data centers over water, noise and contamination concerns
Summary
At the Aug. 5 Hillsborough County commission meeting, multiple residents and advocacy groups urged the board to pause or ban hyperscale AI data centers, citing large daily water withdrawals, persistent low‑frequency noise, and potential impacts near a former phosphate mine. Commissioners directed staff to study legal and land‑use options and asked the county attorney to draft a post‑SB 1180 moratorium ordinance.
Public comment at the Aug. 5 Hillsborough County Board of County Commissioners meeting focused heavily on opposition to large AI or hyperscale data centers proposed near rural and former mining sites.
Debbie Holliday opened the roster of speakers saying, “I am opposed to the development of large scale data centers in Hillsborough County,” and urged the board to “proceed with extreme caution” because communities nationwide have reported noise, ground vibration, high energy and water demand, and environmental damage. Isabella, speaking for Food and Water Watch, told commissioners that “AI data centers in the U.S. will require as much water as 18,500,000 households just for cooling the servers,” and called for county action to stop new projects until safeguards are in place.
Other speakers described local vulnerabilities: Susan Krochunas warned that an AI center at a Dover Road site could threaten a regional strawberry economy she said exceeds $1,000,000,000 annually and noted many residents depend on private wells that have dried during recent shortages. Penny Martin highlighted an active Superfund plume on a former Sydney Dover phosphate mine parcel being advertised to developers and said pulling millions of gallons of water daily “alters the underground pressure as well as risk shifting the chemical plume straight into private drinking wells.”
In response to the public comments and staff briefings, the board approved two related motions. One directed staff to review the county’s legal authority, conservation and capacity management tools, and potential changes to land‑development codes and technical manuals to address high‑water‑use industries. The second asked the county attorney to draft an ordinance that would impose a moratorium on AI data center development in unincorporated Hillsborough County effective after Oct. 1, 2027—or sooner if court action overturns Florida’s SB 1180; the motion passed unanimously. Commissioners and staff emphasized the item is an evaluation and policy development process rather than an immediate regulatory ban.
The county’s development services director said there are no pending applications for data centers and that the land‑development code does not currently list data centers as an approved use, meaning any future project would require a specific planned‑development approval. Commissioners asked staff to examine options including restrictions on using county potable water for cooling and mitigation standards for noise and vibration, and to return with analysis timed to allow action before the SB 1180 restrictions expire.
