Minnesota's statewide standards cap industrial noise: heavy-industrial areas (Class 3) at L50 75 / L10 80 dBA day and night (Minn. R. 7030.0040). St. Paul mirrors this at 80 dBA for industrial districts. The county sets no separate limit.
Industrial and stationary-source noise is capped by Minnesota's statewide standards (Minn. R. 7030.0040), administered by the MPCA and enforced locally. Noise Area Classification 3 (industrial) allows L50 75 / L10 80 dBA day and night. Classification 2 (commercial) is 65/70 dBA. St. Paul applies matching land-use limits — 80 dBA in heavy-industrial districts, 70 dBA in business districts — measured at the nearest point of human activity. Ramsey County does not set its own industrial-noise ordinance; enforcement runs through the city and, for significant sources, the MPCA.
Exceeding the Class 3 limit is enforceable by the city and MPCA; remedies include citations, abatement orders, and, for permitted facilities, permit conditions.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Ramsey County's industrial noise rules stack up against other locations.
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