Mercury emissions information is reported to the EPA under the Toxics Release Inventory program. http://aep.com/investors/docs/AEP2018CleanEnergyFutureReport.pdf http://aep.com/investors/docs/AEP2018CleanEnergyFutureReport.pdf http://aep.com/environment/EmissionsAndCompliance/tri/ Environmental compliance is a high priority for the lifecycle of every project we undertake.