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County planners flag possible conflict between proposed sound-profile requirement and local zoning for data-center siting bill
Summary
Planning staff told supervisors a data-center siting bill that mandates sound-profile site assessments appears broadly compatible with Fairfax—s noise rules but could force duplicative studies or zoning changes unless sponsors add permissive language.
County planning staff and supervisors debated language in a bill that would require sound-profile assessments as part of site assessments for data-center siting and raised concerns about potential overlap with recently updated local zoning requirements.
Tracy Strunk, Director of Planning and Development, said Fairfax already requires an upfront sound study to ensure compliance with the county noise ordinance and that the bill—s sound provisions would likely be "relatively in line" with the county—s approach. Still, she said staff would need to check whether county ordinance language fully covers the bill—s specific measurement or timeframe requirements and whether minor tweaks would be necessary.
Supervisors and planning staff expressed concern about a separate element of the House version that had previously required utilities (Dominion) to provide the county certain electric-data forms for site assessments. County attorneys and staff said they oppose any requirement that would compel Dominion to provide detailed energy-use or electronic-system data to localities, both because the county lacks the capacity to process confidential utility data and because some parts of that language had been removed or altered in Senate and substitute versions.
Supervisor Alcorn recommended giving localities the option to use their existing sound-study process in lieu of a new state-prescribed study so counties would not be forced into duplicative or conflicting processes. Supervisor Walkinshaw said that if the bill would force local zoning changes or require duplicate studies, "it's not a bill that we can support." The group asked staff to engage the bill sponsor to explain Fairfax—s existing ordinance so the final language could permit local compliance rather than mandate local code changes.
Why it matters: the bill affects how localities assess potential noise impacts from proposed data-center projects and could force local zoning or permitting changes unless amended to allow jurisdictions to rely on their existing noise controls.
Next steps: staff will follow up with the sponsor and report back on whether the bill can be amended to make the sound-study elements permissive and avoid requiring new local ordinance changes.
