Industrial Noise: Folsom vs Rancho Cordova
How do industrial noise rules compare between Folsom, CA and Rancho Cordova, CA?
Folsom and Rancho Cordova have similar restriction levels.
Folsom, CA
Sacramento County
Commercial and industrial noise in Folsom is capped at 65 dBA daytime / 55 dBA nighttime at the property line when adjoining residential zones. Commercial operations along East Bidwell, Iron Point, and the Intel campus must comply with the General Plan Noise Element and any conditional use permit limits.
View full Folsom rules →Rancho Cordova, CA
Sacramento County
Commercial and industrial noise in Rancho Cordova is limited at the receiving property line based on zoning. Industrial uses near the Highway 50 corridor and former Aerojet/Mather properties must contain noise to 70 dBA daytime and 65 dBA nighttime at adjacent residential boundaries.
View full Rancho Cordova rules →Key Facts Comparison
| Fact | Folsom | Rancho Cordova |
|---|---|---|
| Residential Receiving | 55 dBA night / 65 day | - |
| Commercial Receiving | 65/70 dBA | - |
| Code | FMC §8.42 | - |
| CEQA Tool | Noise Element | - |
| Fine Range | $250-$1,000 | - |
| Industrial to Residential Day | - | 70 dBA limit |
| Industrial to Residential Night | - | 65 dBA limit |
| Commercial Day | - | 65 dBA |
| CEQA Review | - | Required for new projects |
| Code Section | - | RCMC Chapter 9.44 |
Highlighted rows indicate differences between cities.
Folsom FAQ
A loading dock behind my house runs at 5 AM — is that legal?
Not if sound at your property line exceeds 55 dBA during nighttime (10 PM-7 AM). Report to Folsom Code Enforcement with a log of incidents and timestamps.
How are dBA measurements taken?
City staff or a contracted acoustical consultant measure at the property line using an ANSI Type 2 sound level meter over a 15-minute period (Leq).
Rancho Cordova FAQ
Can a business run HVAC 24 hours?
Yes, if the equipment meets the nighttime limit at the nearest residential property line. Retrofits or enclosures are often required.
Who enforces this in Rancho Cordova?
Rancho Cordova code enforcement at (916) 851-8800 handles most complaints.
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