Alhambra, CA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Code
- AMC § 18.02.050
- Residential zone
- 55 dBA
- Mixed use zone
- 60 dBA
- Commercial zone
- 70 dBA
- Measured
- Inside receiving structure
Summary
Alhambra caps noise received on someone else's property at 55 dBA in the Residential Noise Zone, 60 dBA in Mixed Use, and 70 dBA in the Commercial Noise Zone, which covers the PO and I employment zones. The limits are measured indoors and carry no day or night split.
It is unlawful for any person to produce, suffer or allow to be produced noise or sounds which are received on property occupied by another person within the designated noise zone, in excess of the following levels when measured inside any dwelling unit or commercial structure.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-25: Supplement contains: Local legislation current through Ord. 4851, passed 10-27-25).
Full Breakdown
Municipal Code § 18.02.050 makes it unlawful to produce noise received on property occupied by another person above the zone limit, measured inside a dwelling unit or commercial structure at least four feet from the nearest wall, ceiling, or floor with windows and doors closed. Section 18.02.040 assigns all commercial, manufacturing, and industrial property, including the PO and I zones, to the Commercial Noise Zone at 70 dBA, and all RL, RM, and RH property to the Residential Noise Zone at 55 dBA. Where a measurement sits on a boundary between zones, the lower standard applies. Los Angeles County instead uses exterior limits of 50 dBA daytime and 45 dBA at night.
Violations & Fines
Noise above the § 18.02.050 limits is enforced under § 18.02.120. Because data centers are a prohibited use, generator and chiller noise complaints in Alhambra arise from other permitted industrial equipment.
Frequently Asked Questions
What is Alhambra's noise limit near homes?
Does Alhambra set a different night-time noise limit?
Which noise zone covers Alhambra's industrial areas?
Sources & Official References
Other rules in Alhambra
California rules heatmap·Compare Alhambra to another location·View the California data centers & crypto mining overview
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Data Center Noise Limits in Nearby Cities
How other cities in Los Angeles County handle data center noise limits.