CONOWINGO — The Maryland Department of Environment could deny Exelon Corporation a permit to generate electricity at the Conowingo Dam due to the impacts a study suggests it has on the Chesapeake Bay.
Exelon currently is under a one-year extension to operate the dam, which produces 500 megawatts of electricity.
“Our goal is to keep Conowingo, the largest single source of renewable electricity in Maryland, operating through the middle of the century, while continuing to work with key stakeholders to ensure the long-term health of the lower Susquehanna River and the Chesapeake Bay,” said Robert Judge, a spokesman for Exelon.
The extension was given to allow time for a three-year study headed by the U.S. Army Corps of Engineers to be completed after a push in the 2014 General Assembly to do so.
The study, called the Lower Susquehanna River Watershed Assessment, suggested that the nutrients associated with sediment that flow past the Conowingo Dam affects the Upper Bay. The report also recommended, however, that further study be conducted.