Colorado statute CRS 25-12-103 caps noise at a property line by zone: 55/50 dB(A) residential, 60/55 commercial, 70/65 light industrial, and 80/75 industrial (day/night). Jefferson County mirrors these limits.
The state noise statute sets prima-facie public-nuisance thresholds measured 25 feet or more from a property line, split by day (7 a.m.-7 p.m.) and night (7 p.m.-7 a.m.). Jefferson County's Noise Abatement Policy adopts the same residential figures and adds construction and vehicle standards. Daytime levels may be exceeded by 10 dB(A) for up to 15 minutes each hour. Periodic, impulsive, or shrill noise becomes a nuisance at 5 dB(A) below the listed caps. Measurements require wind under 5 mph.
Under state law, exceeding limits is prima facie a public nuisance abatable in district court. County citations are a Class 2 Petty Offense ($30-$300).
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Jefferson County, CO
Jefferson County requires proper care for every animal and treats hoarding-type conditions (inadequate food, water, shelter, sanitation, or feces accumulatio...
Jefferson County, CO
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Jefferson County, CO
Jefferson County has no ordinance banning backyard compost piles, and residential composting is allowed. There is no county-run curbside compost mandate for ...
Jefferson County, CO
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Jefferson County, CO
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Jefferson County, CO
Colorado law lets residents of single-family homes and buildings of four or fewer units collect rooftop rainwater in up to two rain barrels totaling 110 gall...
See how Jefferson County's decibel limits rules stack up against other locations.
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