Industrial and manufacturing uses in unincorporated Riverside County must comply with Ord. 847 dBA limits at the nearest residential property line 24 hours per day.
Ordinance No. 847 holds industrial, manufacturing, logistics, warehousing, and mineral-extraction operations to specific exterior noise limits at the receiving property line. Typical caps are about 55 dBA daytime and 45 dBA nighttime at adjacent residential parcels, with higher limits permitted on other industrial sites. Sound measurements use an A-weighted slow response, and cumulative duration rules apply (e.g., limits may be exceeded by 5 dBA for no more than 15 minutes per hour). Conditional use permits for truck yards, aggregate plants, data centers, and similar uses often impose tighter CUP conditions including backup-alarm modifications, enclosed loading bays, and truck routing. Ongoing violations can trigger permit revocation hearings in addition to administrative fines. CEQA review for new industrial projects requires noise studies demonstrating compliance at sensitive receptors, particularly in the Coachella Valley and Jurupa Valley edges.
Administrative citations, CUP revocation proceedings, and injunctive actions; fines can reach thousands per day for continuing violations.
Riverside County, CA
California Penal Code section 647(c) prohibits accosting people for money in public. Riverside County supplements the state rule with Ordinance 743 restricti...
Riverside County, CA
Riverside County Ordinance 847 allows the Sheriff to declare a gathering an unruly disturbance and bill responsible parties for response costs. Repeat unruly...
Riverside County, CA
California Government Code section 7597 bans smoking in state parks and beaches. Riverside County Ordinance 539 prohibits smoking in regional parks and open ...
Riverside County, CA
California Health and Safety Code section 11362.3 prohibits smoking or consuming cannabis in public places. Riverside County applies the rule across unincorp...
Riverside County, CA
California Business and Professions Code section 25620 prohibits possession of an open alcoholic beverage container in public places. Riverside County Ordina...
Riverside County, CA
Riverside County Ordinance 348 zoning prohibits commercial auto repair as a home business. Residents may perform incidental repairs on personal vehicles, but...
See how Riverside County's industrial noise rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.