IMPACT: In Philadelphia, plea for safer alternative at refinery

By Jim Morris

IMPACT: No harm from clouds of toxic acid, refiner says — to skepticism

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IMPACT: Refinery's use of toxic chemical spurs hearing

By Jim Morris

Communities at risk from oil refineries that use toxic chemical

By Kimberly Leonard

Report urges phaseout of deadly acid

By Chris Hamby

Highly toxic acid used by refineries sends workers to hospital — again

By Chris Hamby

Excerpts from this story referencing "Hyperion Resources":

"… eturn calls seeking comment Thursday.Last month, iWatch News reported that Hyperion Resources, the company planning to build the first major U.S. refinery in 35 years, …"

New oil refinery in South Dakota says it will use alternative to toxic acid

By Chris Hamby

The company planning to build the nation’s first new major oil refinery in 35 years will use a safer technology as a substitute for a highly

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Equipment failure at refinery leads to toxic HF release

By Jim Morris and Chris Hamby

Fourth fire this year strikes refinery that relies on toxic acid

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Do you live near an oil refinery? Tell us your experience

Use of toxic acid puts millions at risk

By Jim Morris and Chris Hamby

Excerpts from this story referencing "Hyperion Resources":

"… attack, a recent Center for Public Integrity-ABC News investigation found.Hyperion Resources, the company planning the new refinery in South Dakota, told the Center it …"