“The Alabama Department of Environmental Management discovered 3M Co. was underreporting its discharge of potentially toxic chemicals into the Tennessee River before 3M notified the regulatory agency of the error, an ADEM spokeswoman said Friday.

Despite findings that 3M had vastly underreported its discharge, the department took no enforcement action against the company. Battle said the company’s discharge permit establishes no numerical limits for PFC output by 3M, only requiring that the output be monitored.”

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