Temecula's noise ordinance, Municipal Code Chapter 9.20, caps exterior sound at the receiving property: 65 dBA at homes (70 for multifamily), 70 commercial, and 75 dBA at light-industrial land. But Section 9.20.030 exempts heating and air-conditioning equipment - so data-center cooling escapes the noise limits, matching Riverside County.
Temecula's own noise ordinance, Municipal Code Chapter 9.20, sets exterior sound-level standards by the receiving property in Table N-1 (Section 9.20.040): residential 65 dBA (up to 70 for multifamily), commercial and office 70 dBA, and light-industrial/industrial-park land 75 dBA, measured as the average of three readings over thirty minutes. Critically, Section 9.20.030(I) exempts "heating and air conditioning equipment" from the entire chapter - so a data center's chillers and cooling towers are not regulated by the ordinance, the same exemption Riverside County grants and the opposite of neighboring Murrieta. Backup generators, which are not HVAC, remain subject to the property-line limits.
Noise exceeding the Chapter 9.20 exterior standards is a misdemeanor enforced by Temecula code enforcement and police through citations; a permitted data center also breaches any noise conditions on its development plan or conditional use permit.
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Side-by-side rule comparisons with other cities in Riverside County.
See how other cities in Riverside County handle data center noise limits.
See how Temecula's data center noise limits rules stack up against other locations.
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