171 plants indexed. Showing 16 matching current filters.
Maryland's wastewater treatment is regulated by the Maryland Department of the Environment. Major plants include Blue Plains (serving the DC metro) and Back River (Baltimore). UtilityRadar indexes 171 wastewater treatment plants in Maryland with a combined designed capacity of 58,285 m³/day. The largest plant on file is Winebrenner WWTP, treating 3,785 m³/day.
Maryland's wastewater treatment is regulated by the Maryland Department of the Environment. Major plants include Blue Plains (serving the DC metro) and Back River (Baltimore).
UtilityRadar's directory currently lists 171 wastewater treatment plants across Maryland. Together these plants represent a combined designed capacity of approximately 58,285 m³/day.
By treatment level, the directory contains 56 secondary, 38 advanced, 1 primary-treatment plants. Secondary treatment (typically activated sludge with biological nutrient removal) is the most common standard.
The largest plant indexed for Maryland is Winebrenner WWTP, with a designed capacity of 3,785 m³/day.
Plant records are aggregated from publicly available regulatory data (US EPA ECHO, EU UWWTD reporting, national water authority publications), augmented by direct operator information and verified via Google Maps coordinates. Each record includes location, treatment level, capacity where known, operator and operational status. To browse plants by treatment level worldwide, see our secondary and advanced filter views, or read our guide to how sewage treatment works.
Manchester Park WWTP Private is an advanced treatment plant in Singerly, Maryland, serving 173 people. It discharges 75.71 units of treated wastewater and is located within 10 km of the coast.
Prince Frederick WWTP II is an advanced treatment facility in Prince Frederick, Maryland, serving approximately 1,193 people. It discharges treated wastewater near the Chesapeake Bay, a major estuary on the U.S. East Coast.
Prince Frederick WWTP I is an advanced treatment plant serving 1,665 people in Buena Vista Hills, Maryland. It discharges 700.30 units of treated wastewater daily, with a designed capacity of 1703.43 units.
TRAPPE WWTP in Locust Grove, Maryland, serves 1,201 people with advanced treatment. It discharges 382.33 million gallons annually and has a designed capacity of 757.08 million gallons.
Assateague State Park TP is an advanced wastewater treatment plant in Franklin Heights, Maryland, serving 425 people. It discharges 37.85 m³/day and is located within 10 km of the Atlantic coast.
PORT DEPOSIT WWTP is an advanced treatment plant serving Port Deposit, Maryland, USA. It discharges 454.25 million gallons per year and has a designed capacity of 567.81 million gallons per year.
Newark STP is an advanced wastewater treatment plant in Newark, Maryland, serving 224 people. It discharges 87.06 thousand cubic meters annually and operates under the US Clean Water Act.
Hebron WWTP is an advanced treatment facility in Wicomico County, Maryland, serving 730 people. It discharges 166.56 volume units daily and is located within 10 km of the coast.
Tylerton WWTP is an advanced treatment plant serving 173 people in Tylerton, Maryland, USA. It discharges 22.71 m³/day of treated wastewater near the Chesapeake Bay.
Chopticon High School WWTP in Morganza, Maryland, serves 1,844 people with advanced treatment. The plant discharges 3.79 million gallons per day into local waterways near the Chesapeake Bay.
Wicomico Shores WWTP is an advanced treatment plant in Barbers Quarter, Maryland, serving 1,254 people. It discharges 420.18 units of treated wastewater and operates near the Chesapeake Bay.
Forest Farm WWTF is an advanced treatment plant in Saint Mary's County, Maryland, serving 882 people. It discharges treated wastewater near the Chesapeake Bay, supporting local water quality.
St Clement s Shores WWTP is an advanced treatment plant in Compton, Maryland, serving 706 people. It discharges 321.76 units of treated wastewater near the Chesapeake Bay.
Rock Hall WWTP is an advanced treatment facility serving 1,945 people in Rock Hall, Maryland. It discharges treated wastewater into the Chesapeake Bay watershed, operating under U.S. EPA NPDES regulations.
Clifton on the Potomac WWTP is an advanced treatment plant serving 800 people in Rock Point, Maryland. It discharges treated wastewater near the Potomac River estuary, operating under US EPA NPDES regulations.
Cherry Hill WWTP is an advanced treatment plant serving 800 people in Cherry Wood, Maryland. It discharges 571.60 volume units daily, with a designed capacity of 946.35 volume units.
UtilityRadar indexes 171 wastewater treatment plants in Maryland, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ROCK HALL WWTP has the highest designed capacity at 1,912 m3/day.