The Minnesota Pollution Control Agency repeatedly failed to regulate a Twin Cities manufacturer that violated its air permit for more than 15 years and spewed tons of a carcinogen into the air, according to the state's internal watchdog.
A report out Thursday by the Office of the Legislative Auditor (OLA) slammed the state agency for "significant weaknesses" in its permitting and enforcement activities at Water Gremlin Co.
The MPCA didn't issue an air pollution permit to Water Gremlin for five years after the company first applied, the report said. So Water Gremlin operated with no air emission limits during those years as it emitted very large amounts trichloroethylene, or TCE, a degreaser classified as a hazardous air pollutant.
Water Gremlin, in White Bear Township, is a major manufacturer of lead battery terminals and fishing sinkers.
Even after it secured a permit, the company went for eight years at one point without an MPCA inspection, a violation of federal law, according to the report.
The MPCA didn't require the company to periodically retest its pollution control equipment, which kept breaking down.
When Water Gremlin reported TCE emissions for 2000 through 2002 at levels that "far exceeded" its permit, the MPCA didn't fine it, the audit found.
And inspectors didn't check to see if the company's self-reported emissions matched on-site observations.