USG fined for 2022-23 violations

USG Interiors was fined $18,949 for air quality violations at its Cloquet facility two years ago by the Minnesota Pollution Control Agency.

According to an MPCA enforcement investigation, USG exceeded nitrogen oxide emissions by 10 percent above permit limits for nearly 50 days during the summer of 2022. The violations were confirmed following a failed stack test of equipment that dries materials to be formed into ceiling tiles at the company’s facility in Cloquet, Minn.

An MPCA staff inspection in May 2023 also confirmed other violations including:

• Failing to consistently apply chloride to...