For more than half a century, the Chesapeake Bay and many of its tributaries have suffered from poor water quality. Compelled by an executive order and litigation, in 2010, the U.S. Environmental Protection Agency (EPA) issued the Chesapeake Bay total maximum daily load (Bay TMDL) to reduce pollution discharges and thereby restore Bay water quality; unfortunately, the Bay TMDL will fail to meet its 2025 objective.