Roseville, CA Data Centers & Crypto Mining: Data Center Noise Limits (2026)
Key Facts
- Code
- Muni Code Chapter 9.24
- Daytime limit
- 50 dBA Leq (7am-10pm)
- Nighttime limit
- 45 dBA Leq (10pm-7am)
- Industrial allowance
- +7 dBA (Sec. 9.24.120)
- Measured at
- Sensitive receptor property line
Summary
Roseville caps fixed-source noise at a sensitive receptor's property line at 50 dBA daytime (7 a.m.-10 p.m.) and 45 dBA at night, per Municipal Code Chapter 9.24. Industrial sources abutting homes get a 7 dBA allowance; data-center cooling and generators must comply.
It is unlawful for any person at any location to create any sound... which causes the exterior sound level when measured at the property line of any affected sensitive receptor to exceed the ambient sound level by three dBA or exceed the sound level standards as set forth in Table 1, by three dBA, whichever is greater.
Full Breakdown
Roseville's Noise Regulation ordinance, Municipal Code Chapter 9.24, is the city's own standard - not Placer County's. Section 9.24.100 makes it unlawful for a fixed sound source to exceed, at an affected sensitive receptor's property line, either the ambient level by three dBA or the Table 1 standard by three dBA, whichever is greater. Table 1 sets an hourly Leq of 50 dBA daytime (7 a.m. to 10 p.m.) and 45 dBA nighttime (10 p.m. to 7 a.m.). Section 9.24.120 gives industrial-zoned land that abuts or faces a sensitive receptor a larger seven dBA allowance. A data center's chillers, cooling towers, and backup diesel generators are modeled against these limits at the nearest home.
Violations & Fines
Exceeding the Chapter 9.24 limits is unlawful and enforced by the city; for a permitted data center it also breaches the noise conditions attached to its Conditional Use Permit.
Frequently Asked Questions
How loud can a data center be in Roseville?
Does Roseville have its own noise ordinance, separate from Placer County?
Sources & Official References
Other rules in Roseville
California rules heatmap·Compare Roseville to another location·View the California data centers & crypto mining overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.