Vacaville, CA Noise from Specific Sources: Generator Noise (2026)

170(D)(6)(c) sets the noise standard for telecommunication facility equipment, which includes backup generators used to keep cell towers and similar installations running during outages. 10, Abatement of Public Nuisance. Beyond the decibel ceiling, the section adds a use restriction specific to generators: backup generators at telecommunication sites may only be operated during actual power outages and for testing and maintenance, and that testing and maintenance work has to be scheduled and conducted in the manner least disruptive to surrounding land uses. This means a wireless carrier can't run a site's generator routinely or for convenience, only when the grid is down or during a scheduled maintenance window chosen to minimize the noise impact on nearby residents and businesses.

This is a facility-specific standard tied to Vacaville's telecommunication facilities ordinance; the general Municipal Code does not contain a separate chapter regulating portable or residential generator noise outside this telecom context.