Amador County sets no numeric noise-decibel standard. In the manufacturing districts, zoning bars industrial noise or vibration that is discernible at the lot boundaries, so a data center's chillers and generators must be inaudible at the property line. Chapter 9.44 adds a countywide nuisance-noise backstop.
Amador County has no dBA standards table. Its only noise ordinance, Chapter 9.44 (Public Nuisance Noise), is a qualitative standard aimed at short-term rentals and residential noise; it outlaws "disturbing, excessive, or offensive" noise judged by level, time, and duration, enforced by the Sheriff and code enforcement. For an industrial use like a data center, the operative limit is the zoning performance standard in Sections 19.24.043 and 19.24.044: objectionable noise or vibration from any industrial machinery or process shall not be discernible at the lot boundaries. A use permit and CEQA review would attach project-specific noise conditions, referencing the General Plan Noise Element, to a data center's cooling and backup-generator equipment.
Chapter 9.44 noise is enforced by the Sheriff or code enforcement through warnings and citations. A permitted data center that breaches its use-permit noise conditions faces notices of violation, required mitigation, and permit revocation for continued noncompliance.
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See how Amador County's data center noise limits rules stack up against other locations.
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