Sentences with phrase «fracking wastewater into»

Scientists suspected that the Arkansas earthquakes were triggered by the injection of approximately 94.5 million gallons of fracking wastewater into to nearby wells, which then made its way into the basement layer during a nine - month period.

Not exact matches

Since then, we have all learned a lot about the risks of fracking — about how the toxic chemicals used can migrate into drinking water, about how methane can leak out of well casements, about the danger of disposing of billions of gallons of polluted wastewater the process produces.

Over half of the wastewater from fracking, rough 2 - 6 million gallons, is often released back into the main supply with minimal treatment due to ineffectiveness of facilities to detect, let alone properly treat.

In 2011, in response to growing public concern about the possible environmental and human health effects of fracking wastewater, Pennsylvania's Department of Environmental Protection requested that the discharge of fracking fluids and other unconventional oil and gas wastewater into surface waters be prohibited from central water - treatment facilities that release high salinity effluents.

A study published today in Science explains how wastewater injection sites — areas where toxic water left over from oil drilling and fracking processes is injected into the ground between impermeable layers of rocks to avoid polluting freshwater — could be driving the sharp increase in the sometimes - disastrous earthquake events.

Investigations by The New York Times last winter revealed that sewage - treatment plants processing fracking wastewater are discharging radioactive fluid into public waterways, in some cases upstream of intake sites for drinking water.

But according to a panel of geologists at the AAAS Annual Meeting, the culprit isn't hydraulic fracturing, or «fracking,» in which geologists crack open subsurface rocks to extract oil and gas; instead, it's the processes associated with pumping wastewater and other fluids back into the ground.

Although it has long been known that the injection of wastewater into disposal wells can trigger earthquakes by increasing pore pressure and destabilizing fault lines, rarely has fracking itself been identified as the source of tremors.

Instead, the increased risk for seismicity is more strongly linked with the subsequent injection of the wastewater from fracking and other oil - extraction processes into massive disposal wells that are thousands of feet underground.

The study found no evidence of contamination from chemical - laden fracking fluids, which are injected into gas wells to help break up shale deposits, or from «produced water,» wastewater that is extracted back out of the wells after the shale has been fractured....

Trump's EPA would allow wastewater from oil and gas wells, including fracked wells, to make its way into US rivers, streams, lakes and reservoirs after some treatment.

The more oil companies frack and drill, the more wastewater they inject into disposal wells near active faults, which can trigger damaging earthquakes.

It was only after deep injection disposal wells used to house fracking's toxic wastewater went into operation that the earthquakes started.

This included fracking wastewater that state officials had allowed to be dumped at local sewer plants — facilities incapable of removing the complex mix of chemicals, corrosive salts, and radioactive materials from that kind of industrial waste before they piped the «treated» water back into Pennsylvania's rivers.

The suspected culprit is fracking — or more specific to this case, the three injection wells in the area, which inject «vast volumes of salty, chemical - laced wastewater» deep into the ground.