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Pinal County Rejects La Osa Data Center Rezoning

The board's vote halts a scaled‑back, multi‑gigawatt campus and leaves county staff to craft clearer zoning rules for future data‑center proposals.

Overview

  • The Pinal County Board of Supervisors voted 4‑1 on Wednesday to deny rezoning for the La Osa project, effectively blocking the development.
  • Developer Vermaland had reduced an earlier plan from about 59 buildings to 11 and offered limits such as a 600 acre‑foot cap on fresh water use and self‑imposed energy constraints.
  • The proposal would have included on‑site natural gas generation and battery storage capable of serving roughly 1 gigawatt of demand, a scale supervisors and residents said raised grid and fuel‑supply questions.
  • Opponents told supervisors that local wells have gone dry, that the site could harm wildlife and property values, and that many mitigation promises lacked clear, enforceable terms.
  • County staff will begin drafting data‑center specific zoning rules to close gaps exposed during the review while Vermaland said it will pursue other projects in Arizona and residents press for stronger protections.