On May 21, Region 3 issued four administrative compliance orders on consent addressing non-compliance with the acid gas provisions of the Mercury and Air Toxics Standard to the following owners/operators of coal refuse-burning electric generating units in WV and PA: American Bituminous Power Partners, L.P. (Grant Town Facility, WV), InterPower/AhlCon Partners L.P. (Colver Power Project, PA), Northern Star Generation, LLC (Cambria CoGeneration Company, PA) and Ebensburg Power Co. (Ebensburg Power, PA). While the facilities report compliance with mercury limits, they are not in compliance with the acid gas emission standards for hydrochloric acid (HCl). Standards applicable to these eastern bituminous coal refuse-fired units are currently under review by EPA prior to finalization in a final rule. The orders establish enforceable SO2 emission limits for each unit and require that each unit come into compliance with MATS no later than April 15, 2020.