Conowingo Dam Settlement Spurs Environmental Projects Amidst Federal Oversight
A new collaborative approach is emerging around the Conowingo Dam in Maryland, following a settlement agreement between the state and dam owner Constellation Energy. This agreement, valued at $340 million, is intended to fund environmental projects in exchange for a…

Baltimore, MD, August 14, 2026 —
A significant settlement agreement between the state of Maryland and dam owner Constellation Energy is paving the way for a new collaborative effort focused on environmental projects at the Conowingo Dam.
The $340 million agreement, reached between the state and Constellation Energy, aims to fund a suite of environmental initiatives. In exchange for this funding, the state is expected to issue a water quality certification for the dam.
Initially, county officials had raised objections to the settlement. However, these challenges have since been withdrawn. County representatives have now shifted their focus to implementation, forming an advisory group to aid in the process.
Despite the progress between the state and the dam owner, the settlement’s implementation is contingent upon federal approval. The Federal Energy Regulatory Commission (FERC) must review and approve the agreement before it can move forward.
Further developments could also influence the agreement. A recent proposed rule change by the Environmental Protection Agency (EPA) concerning state water quality certifications is being monitored for its potential impact. Additionally, a study by the U.S. Army Corps of Engineers regarding the dredging of the dam’s impoundment is expected, which may also affect future operations and environmental considerations.
Story summarized from the original created by Christine Condon on marylandmatters.org, see more information here.
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