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Harford County enacts emergency ban on data centers after hours of public comment
Summary
After a three-hour public hearing with dozens of residents, business and union representatives, Harford County Council passed an emergency zoning ban on data centers (Bill 26011), 7-0. Supporters cited water, energy and quality-of-life concerns; opponents warned of legal risk and loss of industrial jobs.
The Harford County Council on June 9 voted 7-0 to approve an emergency zoning ban on data centers (Bill 26011) after an hours-long public hearing that drew nearly 50 speakers and substantial local activism.
Administration statement: Steve Overbeay, reading for County Executive Bob Cassilly, told the council the administration concluded data centers are not in Harford County's best interest because of ‘‘high energy demand, noise, water usage, and overall impacts on our environment and quality of life.'' Overbeay said a single hyperscale data center could consume electricity equal to powering "more than 100,000 homes," and that Maryland's renewable-energy policy complicates local permitting.
Public testimony: The hearing drew a wide range of speakers. Dozens of residents and local groups, including Food & Water Watch and Friends of Harford, urged a ban to protect groundwater, farmland, wildlife and community character. Scientists and engineers in the room raised questions about cooling systems and water withdrawals; a civil engineer argued closed-loop systems still require flushing and backwash that can affect wells. A University- or Cambridge-cited study on ambient temperature effects was raised as evidence that large facilities can create local heat islands.
Opponents and cautions: Industry and property-rights speakers warned a blanket ban could create legal risk and unintentionally prohibit small telecom or edge facilities. A representative of building trades (Plumbers & Steamfitters Local 486) highlighted thousands of temporary construction jobs and local workforce benefits; industry speakers emphasized that modern data centers largely use air-cooled systems and that water-use claims are overstated.
Council response and legal concerns: Council members repeatedly noted the desire to ban large hyperscale facilities but also recognized drafting and definitional risks. Members said the approved emergency measure would be followed by further work to tighten definitions and avoid unintended consequences such as prohibiting small-scale telecommunications infrastructure. Several speakers and councilors flagged the risk of state preemption and potential legal challenges.
Vote and follow-up: The council approved Bill 26011 as amended, recorded as seven votes in the affirmative and zero negative votes. Council members said they plan to continue refining the ordinance's technical language, consult engineers and legal counsel, and prepare for potential state-level or industry challenges.
What to watch next: Implementation will hinge on follow-up drafting to define the types and scales of prohibited facilities, and on possible state action that could alter local zoning authority. The county expects legal scrutiny; council members said they would solicit technical expertise and may prepare for litigation or state engagement as needed.
