Mountain View does not set numeric decibel limits. Its Noise Control ordinance, City Code Chapter 10, Article 13, prohibits any noise that creates a "noise disturbance" across a residential property boundary, judged by a reasonable person of normal sensitivities. A data center's cooling and generators must meet that standard.
Mountain View's approach differs sharply from Santa Clara County's numeric limits of 55 dBA daytime and 45 dBA night. City Code Section 10.13.030 makes it unlawful to make or continue any noise that creates a noise disturbance across a residential real property boundary. Section 10.13.020 defines a "noise disturbance" as sound that annoys or disturbs a reasonable person of normal sensitivities, or endangers health or property. There is no citywide decibel table for stationary sources. A data center's continuous chillers, cooling towers, and backup generators are controlled through this nuisance standard and through noise conditions imposed during Development Review, where the General Plan's land-use compatibility levels guide project design.
Noise that creates a noise disturbance across a residential property boundary violates Section 10.13.030 and is enforced by the City through citations and abatement, plus breach of any Development Review noise conditions.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Mountain View, CA
Mountain View prohibits disturbing noise between 10pm and 7am weekdays and 10pm to 8am weekends, with enforcement by police and code enforcement officers.
Mountain View, CA
Amplified music from speakers, DJs, and live bands requires compliance with decibel limits and quiet hours; Shoreline Amphitheatre operates under a separate ...
Mountain View, CA
Industrial and commercial properties in Mountain View must comply with stationary noise source limits measured at property lines, with conditions enforced th...
Mountain View, CA
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Mountain View, CA
RVs, trailers, and boats in Mountain View cannot park on public streets over 72 hours and face Large Vehicle Ordinance limits. Residential storage must be on...
Mountain View, CA
Mountain View enforces California Health and Safety Code 115920 et seq. requiring at least two pool safety features including compliant 60 inch barriers with...
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