3M cited for ‘low-level’ air quality violation
3M-Cottage Grove was tagged for what state officials said was a minor environmental violation late last year.
The Minnesota Pollution Control Agency last week reported that 3M’s abrasive systems division was fined $500 for an air quality violation.
3M has to conduct routine tests on its emissions stacks at the Cottage Grove plant. The tests measure the level of particulates that are emitted.