Officials estimate that less than 25 gallons of diesel fuel flowed from an auto salvage yard through Farmington sewers into the Vermillion River about March 21, but the spill led to a two-day cleanup.
The Minnesota Pollution Control Agency, which led the cleanup effort, found no dead fish or other river damage within a mile and a half of the spill, at which point the diesel sheen on the water broke up, said agency spokesman Sam Brungardt. He said no fish kills were reported on the river, which is known for its brown trout.
An ongoing investigation could result in fines against the responsible party. Or the responsible party may just have to reimburse cleanup costs to the city and the agency, which hired Bay West to handle the job, Brungardt said.
Fire Marshal John Powers said the salvage yard is owned by Cole Empey. A reporter's calls to numbers listed for Empey were not answered.
Powers said the two-day cleanup, assisted by Farmington and Hastings firefighters, involved laying absorbent booms around the sewer outfall and vacuuming diesel fuel floating on the river surface.
Brungardt said about 20 gallons of the diesel fuel was found in a catch basin where rain had washed it about 20 feet from the auto salvage yard. The fuel in the catch basin was flushed by firehoses through the sewer about two blocks to the river, where it was removed by vacuums and booms.
Powers said Empey has an outdoor storage permit from the city, but a large number of cars had been moved to his yard.
The spill was discovered by a city parks employee working in Rambling River Park when he smelled the fuel and saw a sheen on the river.