The Marcellus Shale boom in Pennsylvania has provided Ohio regulators with some guidance in terms of how to deal with the flowback wastewater resulting from the hydraulic fracturing of Marcellus and Utica Shale wells in Ohio.  Rather than dispose of the flowback wastewater at public wastewater treatment works, Ohio regulators are requiring the disposal of such wastewater in Class II underground injection control wells.  For more information on the disposal of Marcellus and Utica shale wastewater, click here.