The owners of several injection wells in Washington County voluntarily agreed to stop using them after state officials warned they could be leaking.
Injection wells are used to pump toxic fluid waste from fracking deep into the earth as a disposal method.
David Jeffrey, professor of geology at Marietta College, said the problem is the waste can migrate thousands of feet while underground, potentially spreading for miles. Jeffrey believes Ohio counties need stronger regulation and data transparency to better gauge risks posed from injection wells…