The volume of liquid drilling wastes injected underground in Ohio grew by 27.2 percent in 2015 and set a new all-time record.
The volume of salty injected wastes totaled 28.8 million 42-gallon barrels.
It has increased from 16.3 million barrels in 2013 to 22.0 million barrels in 2014 to the new total.
That 2015 total volume is enough to fill nearly 1,840 Olympic-sized swimming pools.
Athens, Coshocton and Guernsey counties are the top injection counties in Ohio. Portage County is seventh and Stark County is No. 10.
Such wastes have been linked to small earthquakes in Ohio and other states and critics say injecting such wastes into underground rock formations poses a threat to groundwater.
Industry and state officials say injection wells are a safe disposal method and the growing volume of waste is simply evidence of the Utica and Marcellus shale booms in Ohio and surrounding states.Click here to read more.
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