Kings County's 2035 General Plan Noise Element caps stationary (non-transportation) noise at a home at 55 dBA daytime and 50 dBA at night (Leq), with maximum levels of 75 and 70 dBA. A data center's cooling and generators must meet these limits through a required acoustical analysis.
Kings County's numeric noise standards live in the 2035 General Plan Noise Element, not a standalone decibel ordinance (County Code Chapter 15, Article X handles nuisance noise separately). A data center's chillers, cooling fans, and backup generators are non-transportation noise sources. Under Table N-8, applied at the receiving use, noise at a home may not exceed an average (Leq) of 55 dBA daytime (7 a.m.-10 p.m.) and 50 dBA nighttime (10 p.m.-7 a.m.), with maximum (Lmax) levels of 75 and 70 dBA. Tonal, impulsive, or speech-like sounds get an extra 5 dB penalty. Policy B1.1.1 requires a project to mitigate to compliance. Generators run during power outages are exempt, and routine testing is exempt in daytime under one hour weekly.
Cooling or generator noise above 55 dBA Leq by day or 50 dBA at night at a nearby home fails the Noise Element standards, blocks permit approval, and triggers required mitigation before the project can proceed.
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