Industrial and commercial noise in Murrieta is capped at 70 dBA daytime and 65 dBA nighttime measured at the industrial property line, and must not exceed the adjacent receiving zone limits (55/45 dBA residential) at the nearest sensitive receptor. Chapter 9.02 of the Municipal Code governs enforcement.
Murrieta Municipal Code Chapter 9.02 sets graduated dBA limits by zoning district, applied at the property line of the source and at the receiving property. Industrial and business park zones along Madison Avenue, Jefferson Avenue near the I-215 corridor, and the commercial/industrial flex space near Los Alamos Road are capped at 70 dBA during daytime hours (7 a.m.-10 p.m.) and 65 dBA nighttime. When an industrial use is adjacent to residential zoning, the more restrictive residential receiving limits (55 dBA day, 45 dBA night) apply at the nearest residential property line. Impulsive noise such as metal stamping, pneumatic tools, or loading-dock activity is typically reduced by 5 dBA for measurement purposes to account for the startle response. Conditional use permits for industrial operations near residential neighborhoods routinely include noise mitigation conditions such as enclosed loading areas, acoustic walls, and restricted after-hours operations. Chronic industrial noise violations can trigger abatement orders and CUP revocation hearings before the Planning Commission. Enforcement is through Code Enforcement, supported by sound-level readings taken by a certified technician.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Murrieta code enforcement directly for current fines, enforcement procedures, and hearing options.
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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 Murrieta's industrial noise rules stack up against other locations.
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