In brief
Constellation Energy has committed over $340 million to enhance water quality at the Conowingo Dam, a critical infrastructure that impacts the Chesapeake Bay. The investment aims to clear sediment pollution that affects the bay's ecosystem and will support various environmental initiatives, including fish passages, shoreline restoration, and debris removal. This agreement was reached with the Maryland Department of the Environment and environmental advocacy groups, marking a significant step towards addressing long-standing water quality concerns.
ANNAPOLIS, Md. — Constellation Energy has announced a major engagement to invest more than $340 million aimed at improving water quality at Maryland's Conowingo Dam, an essential structure feeding into the Susquehanna River and subsequently impacting the Chesapeake Bay, the largest estuary in the United States.
This strategic financial allocation not only facilitates the re-licensing and ongoing operation of the hydroelectric facility at Conowingo, which is the leading source of renewable energy in Maryland, but also addresses persistent environmental challenges. This agreement will lead to real improvements in water quality in the biggest tributary of the Chesapeake Bay, while securing the future of one of our state’s largest clean energy producers, remarked Maryland Governor Wes Moore.
The deal comes after extensive discussions regarding accountability for sediment-related pollution that has long plagued the dam and its downstream waters. Previously, an appeals court had sided with environmental groups, vacating the dam’s license in 2022 following a legal argument that required Constellation to engage in measures to mitigate the dam's impact on water quality.
Following these negotiations, a partnership was formed with Waterkeepers Chesapeake and the Lower Susquehanna Riverkeeper Association, ensuring that enforceable water quality standards would be set.
The investment includes approximately $88 million dedicated to pollution reduction and resiliency efforts. This encompasses shoreline restoration, forest buffers, fish passage projects, and the planting of underwater grasses vital for creating oxygen and stabilizing sediment. Additionally, $78 million will be allocated towards trash and debris removal, supplementing ongoing clean-up efforts that already remove roughly 600 tons of debris each year.
Moreover, the plan integrates improvements for fish and eel passages, the establishment of a new freshwater mussel hatchery, invasive species management, and a comprehensive assessment concerning the viability of dredging the dam to mitigate trapped sediment.
As the Revised Water Quality Certification will be submitted to the federal government for the dam's license renewal, advocates celebrate this milestone. Ted Evgeniadis, Executive Director of the Lower Susquehanna Riverkeeper Association, emphasized, Today’s announcement marks 16 years of tremendous effort and perseverance by our organization to assure Conowingo Dam is relicensed with proper conditions that protect the health of the Lower Susquehanna River and Chesapeake Bay.
