An International Falls chemical processing plant has ran afoul of Minnesota's air quality permit limits.The Minnesota Pollution Control Agency says Specialty Minerals has agreed to pay a 24-thousand dollar civil penalty after it was found to have exceeded its air emissions permit limit between September 2011 and 2012.
SMI uses carbon dioxide and other byproducts from the Boise mill to create a wide variety of products.
The company also agreed to submit a plant to ensure its operation hours aren't exceeded in the future and to submit a permit application that would change its current permitted emissions limit.
Both of the required actions have already been completed.
