Spectra Energy Says Rapid Corrosion, Other Factors led to Salem Pipeline Incident

November 2016, Vol. 243, No. 11

By Debra Erdley, Staff Writer, Pittsburgh Tribune-Review

An interstate natural gas pipeline that exploded in Salem Township, PA in April had lost about 30% of its steel wall to corrosion four years earlier, said Spectra Energy officials. But officials said what was then considered a minor anomaly – a small area flagged for re-inspection five years later – corroded at an unprecedented rate that caused the explosion and spurred the company to re-evaluate long-standing industry standards. Spectra officials said they have shortened the length of time between inspections of similar transmission lines from every seven years to every three to four years….

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