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Drilling on shaky ground: Why Chester County’s DA is investigating the Mariner East pipeline project

StateImpact Pennsylvania reporter Susan Phillips discusses the Mariner East project’s problems, and how a pipeline explosion in western Pennsylvania led District Attorney Tom Hogan to take a hard look at a pipeline in his own backyard.

By Staff

Updated: February 15, 2019 | 4:43 pm

Pa. to begin its own process of setting health limit for two PFAS chemicals

As EPA launches national PFAS plan, Pennsylvania says its people ‘can’t wait’ for federal government
By Jon Hurdle and Susan Phillips

Updated: January 22, 2019 | 10:12 am

Sunoco to ‘purge’ part of Mariner East 1 after new sinkhole opens at Lisa Drive

Sinkholes in early 2018 exposed a section of Mariner East 1, prompting a Public Utility Commission administrative law judge to shut down the pipe and halt construction of two new lines, citing an “imminent risk” to the public. 

By Jon Hurdle

‘Reviving the River’ series: Which streams in the Delaware Watershed are too dirty for swimming and fishing?

The WHYY series explores the death and rebirth of the Delaware River, chronicling how it transformed from a ‘stinky ugly mess to a year-round attraction.’

By Evan Bowen-Gaddy, WHYY

Updated: January 10, 2019 | 5:18 pm

Judges say DEP unlawfully issued air-quality permits to Sunoco at Marcus Hook

Agency must review the permits, but ruling has 'no immediate effect' otherwise, environmental group says
By Jon Hurdle

Spills, shutdowns and legal challenges: a tumultuous year for Mariner East 2

After multiple delays, Sunoco has said it is on target to start operations of the controversial pipeline by end of 2018.

By Jon Hurdle

Updated: December 19, 2018 | 5:37 pm

Chester County district attorney opens criminal investigation into Mariner East pipeline project

The district attorney said a recent pipeline explosion in Beaver County, and a visit to see where sinkholes opened last year at a pipeline construction site, prompted him to act.

By Jon Hurdle

Updated: January 17, 2019 | 4:40 pm

Judge denies emergency petition for Mariner East shutdown

Suit brought by seven residents fails on all four requirements
By Jon Hurdle

Delaware County study: Pipeline blast could be devastating, but risk is low

An independent consultant’s risk assessment said someone would be more likely to die from falling down stairs than in a pipeline explosion. Yet a leak would be more likely to ignite in a densely populated area because there are more ignition sources.

By Jon Hurdle

Mariner East pipelines: Judge reviews request for immediate shutdown

An administrative law judge for the state Public Utility Commission heard a second day of testimony Friday on whether to continue to allow operation of the controversial Mariner East pipelines while she reviews a request that the lines be permanently shut down. Several residents say Sunoco’s public awareness plan in the event of a leak is inadequate.

By Marie Cusick