BISMARCK, N.D. (AP) — Federal pipeline officials are keeping in place many of the corrective measures they ordered in December after the Belle Fourche Pipeline spilled about 530,000 gallons of oil in western North Dakota.
The decision came March 24 from the Office of Pipeline Safety, following a February hearing. It means Wyoming-based pipeline operator True Cos. must take several steps including additional pipe testing and analysis.
Tru Cos. maintains that the spill believed to have been caused by hillside erosion was an "isolated, unpredictable event." The Office of Pipeline Safety disagrees, saying the pipeline is vulnerable to future spills. It also says there might have been other leaks on the pipeline that went undetected.
The spill was one of the biggest in state history. It's still being cleaned up.