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Sunoco's Mariner East 2 pipeline construction on Pennell Road in Middletown Township. (Emma Lee/WHYY)
March 21, 2019 | 6:06 PM

Higher operating pressure prompts new safety concerns over Sunoco’s Mariner East 2X pipeline

Documents indicate Sunoco has a new maximum operating pressure for the line, which is under construction. An engineer who conducted a risk assessment of the Mariner East project said a higher pressure increases risk.

By Susan Phillips
This July 27, 2011 file photo shows a farmhouse in the background framed by pipes connecting pumps where the hydraulic fracturing process in the Marcellus Shale was underway at a site in Claysville, Pa.
March 22, 2018 | 9:00 PM

Report: Severance tax proposal could cost mineral owners millions

By Marie Cusick
An easement where Sunoco Pipeline is preparing for construction of the Mariner East 2 pipeline. A homeowners group is asking a court to halt construction in that location until Sunoco comes up with a plan to mitigate contaminated soil on the site.
December 14, 2017 | 4:48 PM

Congressman Meehan seeks pipeline risk assessment for Mariner East 2

By Susan Phillips
November 8, 2017 | 11:38 AM

Mariner East 2 pipeline completion delayed again

By Jon Hurdle
October 16, 2017 | 3:47 PM

23 arrested protesting Atlantic Sunrise Pipeline

By Marie Cusick
September 26, 2017 | 4:53 PM

Last two Dimock families settle lawsuit with Cabot over water

By Jon Hurdle
September 11, 2017 | 3:58 PM

House panel rebrands Marcellus ‘impact fee,’ now calling it ‘severance tax’

By Marie Cusick
September 6, 2017 | 11:58 AM

DEP says Sunoco violated agreement on Mariner East 2 drilling

By Jon Hurdle
August 8, 2017 | 6:49 PM

In draft deal, Sunoco agrees to new pipeline drilling conditions as groups withdraw court challenge

By Jon Hurdle
July 31, 2017 | 9:30 AM

Democratic lawmakers ask FERC to investigate Mariner East 2 pipeline builder

By Susan Phillips
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