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PUC ordered Sunoco to produce its calculations on Mariner East blast zones

Regulator demanded information on how local population would be affected by any pipeline failure

Jon Hurdle, State Impact

Pennsylvania’s Public Utility Commission demanded information from Sunoco Pipeline last year about what would happen if its Mariner East natural gas liquids pipelines failed, according to a newly discovered letter.

The PUC wrote to Sunoco in February 2018 with a list of questions that included the company’s calculations on the immediate and delayed impacts of a pipeline failure, the number of people who would have to be evacuated, and the number of schools, hospitals and senior living facilities there.

The regulator, which is jointly responsible for pipeline safety, also directed Sunoco to supply its emergency response plan for any such incident. ...Read the full article

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