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Sunoco plans restart of Mariner pipeline

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The Bureau of Investigation and Enforcement (I&E) – the independent investigation and enforcement bureau of the Pennsylvania Public Utility Commission (PUC) – has received notice from Sunoco Pipeline LP, aka Energy Transfer Partners (SPLP or Sunoco), of Sunoco’s intent to restart the Mariner East 1 pipeline.

Sunoco will take a series of additional steps to address safety concerns regarding the Mariner East Pipelines.

Mariner East 1 has been out of service since Jan. 20, as engineers from I&E’s Pipeline Safety Division monitored stabilization and remediation efforts undertaken by SPLP following sinkhole that exposed a small segment of the pipeline along Lisa Drive in West Whiteland Township, Chester County.

As the independent investigation and enforcement bureau of the Public Utilities Commission, I&E enforces state and federal pipeline safety and motor carrier safety laws and regulations and represents the public interest in ratemaking and service matters before the PUC’s Office of Administrative Law Judge.

I&E has the authority to bring enforcement action, seek emergency orders from the commission or take other steps to ensure public safety.


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