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A fire burns at the Philadelphia Energy Solutions refinery hours after a series of early morning explosions at the 150-year-old industrial complex at 3100 W. Passyunk Ave. (Emma Lee/WHYY)

Most of a dangerous toxic chemical at the PES refinery is now neutralized — but risk remains

Exposure to hydrofluoric acid can cause serious injury or death, and the chemical has posed a threat since an explosion and fire ripped through the refinery in June.

By Susan Phillips

In the distance, construction of the Mariner East 2 pipeline at Raystown Lake Recreation Area in Huntingdon County, Pennsylvania.

Refinery workers watch protestors outside the PES refinery Tuesday.

Jessica Cutaiar never liked the taste of the well water at her Sellersville home. Now she knows it is contaminated with PFAS, a chemical used in fire retardant foam.

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

Philadelphia firefighters gather at the entrance to Philadelphia Energy Solutions Refinery, while a large flare burns off fuel to prevent it from feeding the massive fire at the refinery.

A fire burns at the Philadelphia Energy Solutions refinery hours after a series of early morning explosions at the 150-year-old industrial complex at 3100 W. Passyunk Ave. on June 21.
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

The Schuylkill river at dusk in Philadelphia. The river is a popular fishing spot. In 2018, the New Jersey DEP began testing fish for the family of chemicals known as PFAS and issued fish advisories. New Jersey has stricter limits on PFAS exposure than Pennsylvania.

New Jersey sues companies over PFAS contamination

The lawsuit alleges eight companies engaged in consumer and environmental fraud
By Susan Phillips

Sunoco's Mariner East 2 pipeline construction on Pennell Road in Middletown Township. (Emma Lee/WHYY)

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

Tree-clearing in Delaware County in 2017 prepares land for the construction of the Mariner East 2 pipeline project. The builder, Sunoco Logistics, rejected an attempt by a township in neighboring Chester County to block the installation of a valve along the line.

State attorney general, Delaware County district attorney launch criminal investigation into Sunoco, Energy Transfer

Chester County’s district attorney is already investigating the Mariner East pipeline project. The company said it will “aggressively” defend itself.

By Susan Phillips

Crews worked on Monday Jan. 21 to stabilize a new sinkhole that opened up at Lisa Drive, a suburban development in West Whiteland Township, Chester County where Sunoco operates its Mariner East pipelines.

Chester County investigation of pipeline builder Energy Transfer now includes grand jury

District attorney's probe of Mariner East project began in December
By Susan Phillips
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