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U.S. Army
Md. can enforce dam cleanup
Md. can enforce dam cleanup

When the Conowingo Dam was built in 1928, it blocked a free-flowing section of the mighty Susquehanna River, creating a 14-mile-long, 9,000-acre reservoir at the head of the Chesapeake Bay near the Maryland-Pennsylvania line. While the dam has provided electricity for the region, the impacts on the river and the bay have been profound. The hydropower dam has changed the flow of the river, blocked the migration of fish including shad, herring and eel, and its turbines kill millions of fish each year. Conowingo has also become a significant source of pollution. For years, the dam's owner — Exelon Corporation — and its predecessors have avoided any responsibility for...