[2] The generation plant's site property abuts the Chesapeake and Ohio Canal National Historical Park, which follows along the Potomac River.

[5] In 1991, the 900-foot (270 m)-long cooling water discharge channel from the power plant, which empties into the Potomac River, became the Dickerson Whitewater Course, a canoe and kayak training facility for the 1992 Olympic Games.

[9] In May 2020, GenOn Holdings announced it would retire the three coal generating units, citing unfavorable market conditions and increased costs associated with environmental compliance.

[11] In August 2016 the Maryland Department of the Environment (MDE) fined Dickerson $1 million for releasing illegal amounts of nitrogen into the Potomac River.

[12] In August 2018 MDE required the Dickerson plant to meet current federal wastewater standards (effluent guidelines) by November 2020.

Upgrading the plant's treatment systems to Maryland's current standards "could reduce discharges of toxic metals by 97 percent.