Industrial noise in Tucson is capped at 72 dBA at industrial property lines during the day and 67 dBA at night under Tucson City Code Chapter 16. Facilities adjacent to residential zones must meet the stricter residential limits at the shared boundary rather than their own zone limit.
Heavy industry concentrations in south Tucson and along the I-10 corridor operate under routine noise compliance monitoring by Pima DEQ. HVAC, compressors, loading docks, and back-up alarms are common complaint triggers. Tone, impulse, and low-frequency noise carry a 5 dBA penalty when measuring compliance. Facilities planning overnight operations must demonstrate sound attenuation in site plan review. The UDC requires acoustical studies for new industrial uses within 500 feet of residential zones.
Administrative penalties range from 250 dollars to 2,500 dollars per day. Tucson may require sound mitigation retrofits or operational changes as a condition of continued operation. Repeat offenders face use permit revocation.
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Side-by-side rule comparisons with other cities in Pima County.
See how other cities in Pima County handle industrial noise.
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