This from KSTP:
MPCA says a derailment led to fuel spill into St. Paul creek
January 16, 2019 03:10 PM
The Minnesota Pollution Control Agency says a slight train derailment Tuesday night in St. Paul punctured a fuel tank and spilled 1,800 to 2,000 gallons of fuel into Battle Creek.
The MPCA spokesperson said the creek feeds into Pig’s Eye Lake, and some of the fuel got underneath the ice on the lake’s surface.