Gardena Municipal Code 8.36.040 caps industrial and manufacturing exterior noise at 70 dBA average around the clock, and GMC 8.36.070(11)(b) requires motors and machinery to be enclosed or muffled.
Under GMC 8.36.040, industrial or manufacturing land carries an exterior 15-minute average limit of 70 dBA both day and night, with a maximum (Lmax) of 90 dBA. GMC 8.36.070(11)(b) requires any motor, air conditioner, machinery, or pump (including swimming pool equipment) to be sufficiently enclosed or muffled so as not to create a noise disturbance under GMC 8.36.040 or 8.36.050. Fixed noise sources such as compressors, fans, and refrigeration equipment are defined in GMC 8.36.020. Pure tones like a hum or whine trigger a 5 dB stricter standard. Pre-existing operations had a six-month compliance window under GMC 8.36.080(K).
Misdemeanor under GMC 8.36.090; abatable as a public nuisance; up to $1,000 fine and/or six months (Chapter 1.16).
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