Marathon Petroleum Corp. has paid a $700,000 fine for dumping benzene into an unlined lagoon near the Mississippi River in 2010. Benzene is a known carcinogen.
The Minnesota Pollution Control Agency alleges Marathon lacked the proper permits to dispose of the benzene and had already exceeded its permit limits for ammonia, nitrogen and sulfides at the time of the dump.
Since the incident, Marathon has sold the facility located in St. Paul Park to the St. Paul Park Refining Company.
Note: The fine comes at the end of a long investigation that surely included employee interviews. When government investigators come calling, you must make employees available to them. Trying to stonewall or, worse, muzzle whistle-blowers will only make the situation worse.
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