Fillmore, CA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Code
- Muni Code Sec. 6.04.1805
- Day limit
- 68 dBA (7am-7pm)
- Evening limit
- 50 dBA (7-10pm)
- Night limit
- 45 dBA (10pm-7am)
- Measured at
- Property line of source
Summary
Fillmore's zoning code caps exterior noise at the property line: 68 dBA daytime (7 a.m.-7 p.m.), 50 dBA evening (7-10 p.m.), and 45 dBA overnight (10 p.m.-7 a.m.). Municipal Code Section 6.04.1805 binds a data center's cooling and generators to these limits.
Exterior Noise Standards. Each developer/operator shall be responsible for the attenuation/mitigation of noise produced by the use or operation. The following noise levels ... are the maximums permitted in the city. 7:00 a.m.—7:00 p.m. 68 dBA; 7:00 p.m.—10:00 p.m. 50 dBA; 10:00 p.m.—7:00 a.m. 45 dBA. As measured at the property line of the noise source.
Full Breakdown
Fillmore has no dedicated data-center noise rule; its general performance standards apply. Municipal Code Section 6.04.1805(14) makes each developer and operator responsible for attenuating noise from a use. Exterior noise measured at the property line of the source may not exceed 68 dBA from 7 a.m. to 7 p.m., 50 dBA from 7 to 10 p.m., and 45 dBA from 10 p.m. to 7 a.m. - limits drawn from the 1989 General Plan EIR. Measurement uses an A-weighted sound level meter, and the Director may require a full noise study. A data center's continuous cooling towers, chillers, and backup generators must meet the 45 dBA overnight floor where the site abuts homes.
Violations & Fines
Exterior noise over the Section 6.04.1805 limits is a public nuisance and zoning violation, enforced by Fillmore code enforcement, and breaches any noise conditions imposed on a data center's development or conditional use permit.
Frequently Asked Questions
How loud can a data center be in Fillmore?
What noise rule protects homes near a Fillmore data center?
Sources & Official References
Other rules in Fillmore
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