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Canton staff outline data‑center moratorium review, flagging power, water and noise concerns
Summary
Staff summarized a Feb. 10, 2026 Board moratorium and outlined a range of data‑center types and impacts — from small server rooms to hyperscale facilities — calling for tightened definitions, noise and vibration metrics, and coordination with utilities before permitting; commissioners asked for objective utility data and legal input.
Canton Township planning staff used the commission’s May 18 meeting to begin a structured review of data‑center uses during a 12‑month moratorium the Board of Trustees adopted Feb. 10, 2026.
Patrick said the work aims to distinguish small, accessory server spaces from hyperscale data centers that can demand large amounts of electricity and water and generate continuous noise and emissions. “The moratorium basically doesn't allow for any applications to be received and considered for data centers within that 12‑month period,” he said, adding that moratorium rules include appeal provisions for existing users.
Staff highlighted potential environmental and infrastructure impacts: electricity demand that could approach the needs of tens of thousands of homes for a single hyperscale facility, water use for cooling (in some cases described as taking multiple Olympic‑sized swimming pools per day), continuous generator emissions and odors if operators run backup generators, and low‑frequency noise and ground vibration that standard dBA metrics may not fully capture. Patrick said staff will evaluate whether Canton’s current noise performance standard (section 7.02) is adequate or whether to adopt more sophisticated measures such as dBC for low‑frequency sound.
“Some of the hyperscale data centers...use a lot of electricity and a lot of water. Those are the ones that get the most attention,” Patrick told the commission. He said staff will consult the University of Michigan guidance on data centers, review state definitions used in tax and incentive statutes, and coordinate with utilities such as DTE to assess capacity.
Commissioners asked for objective data. Commissioner Jeff Mallard urged careful definition work and said public concern is high; Commissioner Lee and others asked staff to obtain DTE’s long‑term capacity plans and a municipal analysis of water and sewer impacts. Several commissioners suggested studying examples from other jurisdictions and identifying thresholds that would trigger more stringent review or special‑use processes.
No ordinance vote occurred; staff will refine definitions, coordinate with legal counsel and utilities, and return with options for public hearings during the moratorium period.
