Following a moratorium sparked by an earthquake, The Ohio Department of Natural Resources is once again approving permits for injection wells for fracking wastewater.
State officials approved four new injection wells last month. Two of the wells are located in Washington County, one in Athens County and the fourth is in Portage County.
There are currently 31 applications for injection wells pending in the state of Ohio. A state spokesperson said the permit applications are under review.
The state stopped approving new wells almost a year ago after 11 earthquakes shook the Youngstown area. Seismologists said the earthquakes were caused by a nearby injection well.
State regulators have adopted new rules for injection well construction, but environmentalists are still concerned about their safety.