BISMARCK, N.D. (AP) A state health official says cleanup of an oil train derailment on the outskirts of Casselton "is all but complete.''
Federal investigators determined that 400,000 gallons of oil was lost in December when a BNSF train derailed and caught fire near Casselton.
State Environmental Health Chief Dave Glatt says regulators inspected the site Wednesday. He says about 10,000 tons of dirt and other material has been removed from the crash site.
Glatt says contractors now have permission to begin backfilling the site with new soil.
Glatt says the state will be monitoring groundwater at the site for at least two more years.