Folsom vs Isleton
How do industrial noise rules compare between Folsom, CA and Isleton, CA?
Folsom and Isleton 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 →Isleton, CA
Sacramento County
Commercial businesses in Isleton must keep noise from mechanical equipment, deliveries, and operations below levels that disturb neighbors. Deliveries to Main Street businesses are generally limited to daytime hours.
View full Isleton rules →Key Facts Comparison
| Fact | Folsom | Isleton |
|---|---|---|
| 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 | - |
| Daytime Limit | - | 55 to 60 dB at property line |
| Nighttime Limit | - | 50 dB |
| Delivery Hours | - | 7 AM to 10 PM |
| Owner Liability | - | Property owner responsible |
| Escalation | - | CUP review possible |
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).
Isleton FAQ
Can a restaurant run its HVAC at night?
Yes, but equipment must be muffled or screened so noise at the nearest residence stays at or below 50 dB during nighttime quiet hours.
Are early-morning beverage deliveries allowed?
Deliveries should occur between 7 AM and 10 PM. Earlier deliveries require special accommodation and may be cited if they disturb neighbors.
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