Decibel Limits: Downey vs West Covina
How do decibel limits rules compare between Downey, CA and West Covina, CA?
Downey and West Covina have similar restriction levels.
Downey, CA
Los Angeles County
Downey Municipal Code Section 4600 establishes noise standards. Any noise exceeding 100 decibels at 25 feet or more from the source is a prima facie violation. Power tools and equipment in residential zones are restricted between 10 PM and 7 AM.
View full Downey rules →West Covina, CA
Los Angeles County
West Covina Municipal Code Article IV (Sections 15-91 through 15-97) prohibits loud, unnecessary, or unusual noise in residential zones. Noise plainly audible at 50 feet from the property line is presumed a violation. Standards are reduced by 5 dB for tones, repetitive noise, music, or speech.
View full West Covina rules →Key Facts Comparison
| Fact | Downey | West Covina |
|---|---|---|
| Code Section | DMC §4600 | - |
| Prima Facie Limit | 100 dBA at 25 ft | - |
| Restricted Hours | 10 PM–7 AM (residential zones) | - |
| Applies To | R-1, R-2, R-3 zones | - |
| Enforcement | Downey PD: (562) 861-0771 | - |
| Audibility Test | - | 50 ft from property line |
| Tone/Music Penalty | - | -5 dB reduction |
| Engine Curfew | - | 8 PM – 8 AM |
| Code | - | WCMC Art. IV §15-91–97 |
Highlighted rows indicate differences between cities.
Downey FAQ
What are Downey's noise limits?
Any noise exceeding 100 decibels at 25 feet from the source is a prima facie violation under Section 4600. Power equipment in residential zones is restricted between 10 PM and 7 AM.
Can I use power tools at night in Downey?
No. Power tools, machines, and equipment may not be used in residential zones (R-1, R-2, R-3) between 10 PM and 7 AM if the noise disturbs neighbors.
West Covina FAQ
How is a noise violation determined in West Covina?
If noise is plainly audible at 50 feet from the property line, it is presumed a violation under Section 15-94. For tonal, repetitive, music, or speech content, the threshold is reduced by 5 dB.
Can I run a leaf blower at night in West Covina?
No. Between 8 PM and 8 AM, operating gasoline-powered engines like leaf blowers, mowers, or chain saws within a residential zone or within 500 feet is unlawful under Section 15-95.
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