Industrial noise in Riverside is capped at 70 dBA daytime and 65 dBA nighttime at the receiving residential property line under RMC Chapter 7.35.
Riverside Municipal Code Chapter 7.35 sets graduated exterior noise limits by receiving-zone land use. Industrial and manufacturing operations may not cause noise exceeding 70 dBA (day) and 65 dBA (night) at the nearest residential property line, or 75/70 dBA at another commercial property line. Measurements are taken with a Type-1 or Type-2 sound level meter using a slow-response A-weighted scale. Trucking terminals, rock-crushing operations, and warehouses in the Northside and Arlington industrial corridors are frequent subjects of complaints. Repeated excess beyond 5 dBA over the limit for more than 15 minutes in an hour triggers nuisance enforcement. Code Enforcement works with the Community Development Department to pursue progressive abatement, including conditional-use-permit (CUP) review.
Administrative citations run $100-$500 per violation; sustained breach can lead to CUP revocation, mandatory mitigation (walls, mufflers, hours restrictions), or injunctive action.
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Side-by-side rule comparisons with other cities in Riverside County.
See how other cities in Riverside County handle industrial noise.
See how Riverside's industrial noise rules stack up against other locations.
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