Palatine, IL Noise Ordinances: Decibel Limits (2026)

Section 12.02(d), Noise, part of the Performance Standards article for Palatine's Manufacturing Districts, sets a hard property-line ceiling: no individual operation or plant, apart from motor vehicle noise, may exceed the decibel limits in the Table of Maximum Permitted Sound Level. The table runs across eight octave bands, from 0 to 75 cycles per second up to above 4,800 cycles per second, and sets two separate ceilings depending on what abuts the manufacturing use. Land adjoining residential uses carries the lower limits, 72 decibels at the lowest band down to 38 decibels at the highest bands, while land adjoining other, non-manufacturing, non-residential zoning districts allows higher readings, 79 decibels at the lowest band down to 39 decibels at the highest.

Section 12.02(a) makes every activity coincidental or primary to a manufacturing use subject to these standards, and an existing use in place before the ordinance's effective date cannot be altered in a way that creates or worsens a conflict with the applicable limit. Section 12.02(d)(2) requires that noise testing be performed at the property line of the emitting source with an octave band analyzer built to American Standards Association specifications, while Section 12.02(d)(3) covers irregular or intermittent noises that cannot be measured on that equipment, requiring them to be controlled so they do not become a nuisance to adjacent uses even without a numeric reading.