Decibel Limits: Orange vs Santa Ana
How do decibel limits rules compare between Orange, CA and Santa Ana, CA?
Orange and Santa Ana have similar restriction levels.
Orange, CA
Orange County
The City of Orange uses A-weighted decibel (dBA) measurements at slow response under OMC Chapter 8.24 to evaluate noise complaints. Noise that disturbs the comfort and repose of reasonable persons is prohibited regardless of decibel level.
View full Orange rules →Santa Ana, CA
Orange County
Santa Ana establishes quantitative noise limits under SAMC Chapter 18, Article VI (Noise Control). Exterior residential limits are 55 dBA daytime (7 AM-10 PM) and 50 dBA nighttime (10 PM-7 AM), with a 5 dB penalty for impact noise, music, or simple tones.
View full Santa Ana rules →Key Facts Comparison
| Fact | Orange | Santa Ana |
|---|---|---|
| Measurement | dBA slow response | - |
| Leaf Blower Limit | 70 dBA at 50 feet | - |
| Nighttime Standard | Audible 100 ft = violation | - |
| Code Section | OMC Chapter 8.24 | SAMC §18-312, §18-313 |
| Residential Day (7AM-10PM) | - | 55 dBA exterior |
| Residential Night (10PM-7AM) | - | 50 dBA exterior |
| Interior Standard | - | 45 dBA all times |
| Music/Tone Correction | - | -5 dB from standard |
Highlighted rows indicate differences between cities.
Orange FAQ
What are the decibel limits in Orange?
The city uses a reasonableness standard rather than fixed decibel limits for most sources. Leaf blowers have a specific 70 dBA limit at 50 feet.
How is noise measured for enforcement?
Noise is measured in A-weighted decibels (dBA) using a sound level meter at slow response per OMC Chapter 8.24.
Santa Ana FAQ
What are the noise limits in Santa Ana?
Residential exterior limits are 55 dBA from 7 AM to 10 PM and 50 dBA from 10 PM to 7 AM. Interior limits are 45 dBA at all times. Music or tonal noise gets a 5 dB stricter standard.
How is noise measured in Santa Ana?
Noise is measured at the property line of the receiving property using A-weighted sound level meters meeting ANSI specifications per SAMC Section 18-312.
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