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Updated: August 9, 2019 | 7:59 am

Pipeline experts say vapor buildup likely led to explosion at Chester County pump station

It looks like pilot light ignited excess hydrocarbons when it was re-lit, experts say
By Jon Hurdle

Delaware County pipeline foe thought he’d get PUC information on Mariner East risk. But now he’ll have to fight for it in court

The state’s open records office ruled some documents related to a ‘blast radius’ or ‘buffer zone’ should be public. But the Public Utility Commission is asking Commonwealth Court to agree that the data should stay private.

By Jon Hurdle


Refinery’s closure sparks calls for a ‘just transition’ in Philadelphia

Two very different views toward what should happen to it mirror a conversation that’s taking place across the country: How do we move toward a low-carbon future without displacing the more than one million people who make their living in fossil fuels?

By Emily Pontecorvo, WHYY

Risk plan for Philly refinery shows a hydrogen fluoride release could have been disastrous. Some say the toxic chemical is too dangerous to keep using

The explosion at Philadelphia Energy Solutions raises questions about a substance — which is also used at two nearby plants — that is so toxic, a vapor cloud of it could travel for miles and cause blindness, serious burns, permanent injuries or death.

By Susan Phillips


Residents with PFAS-contaminated private well water in limbo as DEP investigates cause

Those with private wells close to bases where PFAS chemicals were used have received bottled water. But some places are too far away for the contamination to be the direct result of training exercises, and too far away to have been tested by the Environmental Protection Agency.

By Dana Bate, WHYY

Updated: June 28, 2019 | 5:48 pm

Lawsuit claims Philadelphia Energy Solutions failed to give workers ample warning of layoffs

Federal law: Certain employers must give 60 days notice, or provide severance pay 
By Susan Phillips

Updated: June 26, 2019 | 5:36 pm

Philadelphia refinery damaged by fire will close, city says; union calls layoffs a ‘disgrace’

The explosion and fire took a day and a half to extinguish and destroyed the unit that turned crude oil into gasoline. Four employees were hurt.

By Susan Phillips

Philadelphia officials to convene working group on the PES refinery fire, while residents rally to shut the plant down

City says the refinery explosion, fire did not impact public health
By Susan Phillips and Dana Bate, WHYY
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