Sentences with phrase «pumping fracking fluids»

California officials have ordered an emergency shut - down of 11 oil waste injection sites and a review of over 100 others in the Central Valley for fear that companies may have been pumping fracking fluids into drinking water aquifers.

California officials have ordered an emergency shut - down of 11 oil and gas waste injection sites and a review more than 100 others in the state's drought - wracked Central Valley out of fear that companies may have been pumping fracking fluids and other toxic waste into drinking water aquifers there.

Not exact matches

In 2001, her water well exploded with methane and gray sediment the same day drillers pumped fluids underground to frack a well nearby.

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.

Afterwards, companies need to pump out the fracking fluids, releasing bubbles of dissolved gas as well as burps of early gas production.

Then a mixture, commonly known as fracking fluid, of water (90 percent), sand (9.5 percent) and chemicals (0.5 percent) is pumped into the well under high pressure to create micro-fractures in the shale and free the natural gas or oil.

During hydraulic facturing, known as fracking, large volumes of fluid are pumped underground to pressurize and break rock, thereby releasing trapped natural gas.

Did fracking fluids ever contain industrial waste mixtures which, if pumped into the ground for non-gas production purposes, would have been regulated as hazardous waste?