Chula Vista, CA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Code
- CVMC Sec. 19.68.030
- Light industry
- 70 dB(A) any time
- Heavy industry
- 80 dB(A) any time
- At a home
- 55 day / 45 night
- Steady tone
- Limit reduced five dB
Summary
Chula Vista caps industrial noise at the property line: 70 dB(A) any time for I-L and I-R light industry, 80 dB(A) for heavy industry. At a receiving home the limit drops to 55 dB(A) daytime and 45 dB(A) overnight. Municipal Code Sec. 19.68.030 sets the table.
Sound levels by receiving land use shall be measured at the boundary or at any point within the boundary of the property affected. ... In the event the alleged offensive noise ... contains a steady, audible sound such as a whine, screech or hum ... the standard limits set forth in Table III shall be reduced by five dB.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 3623, passed May 19, 2026).
Full Breakdown
Chula Vista's noise control ordinance, Municipal Code Sec. 19.68.030, sets exterior limits by the receiving land use, measured at the property boundary. Table III limits: single-family residential 55 dB(A) day (7 a.m.-10 p.m.) and 45 dB(A) night; multiple-dwelling 60/50; commercial 65/60; light industry in the I-L and I-R zones 70 dB(A) any hour; heavy industry in the I zone 80 dB(A). Where a noise carries a steady hum, whine, or screech, the limit is reduced five dB. A data center's continuous cooling and backup generators are judged against the nearest receiver's limit - the 45 dB(A) overnight residential floor binds where an industrial site abuts homes.
Violations & Fines
Noise over the Sec. 19.68.030 limits is an infraction enforced by the City as an environmental noise disturbance, and can breach the noise conditions placed on a data center's Conditional Use Permit.
Frequently Asked Questions
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Sources & Official References
Other rules in Chula Vista
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