2 plants indexed.
Mt Carmel Woods WWTP is a secondary treatment plant in Waldorf, Maryland, serving about 200 people. It discharges treated wastewater near the Potomac River and Chesapeake Bay.
Mattawoman WWTP in Waldorf, Maryland serves over 90,000 people. The plant is located within 50 km of the coast and discharges into the Potomac River basin.