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FL advocates worry about the EPA delaying an important decision on emissions; WV is a leading state in criminal justice reform thanks to national backing; CA groups are celebrating a judge rejecting a federal moratorium on offshore wind; U of MI child care workers are fighting for a livable wage; gray whales might not be bouncing back as fast as previously thought; and NY advocates are celebrating a federal ruling saying the Trump Administration's wind energy ban was illegal.

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The Senate fails to extend ACA subsidies all but ensuring higher premiums in January, Indiana lawmakers vote not to change their congressional map, and West Virginia clergy call for a moratorium on immigration detentions during the holidays.

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Farmers face skyrocketing healthcare costs if Congress fails to act this month, residents of communities without mental health resources are getting trained themselves and a flood-devasted Texas theater group vows, 'the show must go on.'

Study: Treated Oil, Gas Wastewater Leaves Radioactive Contamination

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Monday, February 5, 2018   

CHARLESTON, W.Va. — Over time, treated oil and gas wastewater is leaving radioactive deposits in the stream beds where it is released, scientists have found.

A team of Duke University researchers found highly elevated levels of radium in the mud where three Pennsylvania treatment plants released wastewater. That's even after the water was treated to greatly reduce its radioactivity, said Avner Vengosh, the professor of geochemistry who led the research team.

"We found that, indeed, there is a large enrichment of radioactive elements in those stream sediments,” Vengosh said. “It's about 600 times the level that we found upstream."

The industry says the brine and other water from oil and gas wells contains some naturally occurring radioactive elements, but only at very low levels. Vengosh and his team have been focusing on the ways these elements become concentrated in stream beds.

Vengosh noted the treated wastewater was from conventional oil and gas wells, not fracking wells - although he said the Duke researchers have found similar issues where fracking wastewater had been released. He added that Pennsylvania stopped the release of treated wastewater from fracking operations some years ago.

He said one troubling issue is how high these concentrations can get - as high as ten times the radioactivity of low level radioactive waste from, say, a hospital or power plant.

"So they are exceeding the level that this site should be, defined as a low radioactive disposal site,” Vengosh said. “Obviously, they are not - it's the middle of a stream in Pennsylvania."

He said most of the nation's oil and gas brine is injected into deep disposal wells, although the geology in Pennsylvania often makes that impossible. Vengosh said treating the wastewater isn't enough.

"I don't think there is a direct human health risk immediately from those sites,” he said. “But there is a chronic contamination of the environment. Even the treatment, it's not sufficient to address this problem."

Oil and gas wastewater is sometimes used to melt the ice on roads. Vengosh said that also may not be safe.


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