171 plants indexed. Showing 92 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.
Tolchester WWTP is a secondary treatment plant in Georgetown, Maryland, serving about 1,467 people. It discharges treated wastewater near the Chesapeake Bay, a major estuary on the U.S. East Coast.
Kennedyville STP is a secondary treatment plant serving 234 people in Kennedyville, Maryland. It discharges 75.71 thousand cubic meters per year with a designed capacity of 227.12 thousand cubic meters per year.
Worton_Butlertown STP is a secondary treatment plant serving 556 people in Worton, Maryland. It discharges 128.70 units of treated wastewater daily, with a designed capacity of 374.75 units.
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.
Jude House Package WWTP Bel Alton WWTP is a secondary treatment facility serving 345 people in Chapel Point Woods, Maryland. It discharges 37.85 megaliters of treated wastewater annually.
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.
Cobb Island WWTP is a secondary treatment plant serving approximately 1,920 people in Bryantown, Maryland. It discharges 215.77 thousand gallons per day and has a design capacity of 598.09 thousand gallons per day.
Ridgely WWTP is a secondary treatment plant in Oakland, Maryland, serving 1,600 people. It discharges 469.39 thousand cubic meters annually and operates under the US Clean Water Act.
Preston WWTP is a secondary treatment plant in Tanyard, Maryland, serving 719 people. It discharges 121.13 million gallons per year into local waterways.
Greensboro WWTP is an advanced treatment facility in Greensboro, Maryland, serving about 2,000 people. It discharges treated wastewater into local waterways within the Chesapeake Bay watershed.
Rising Sun STP is a secondary treatment plant serving 2,600 people in North Hills, Maryland. It discharges 810.08 thousand gallons per day into the Susquehanna River basin, ultimately reaching the Chesapeake Bay.
Chesapeake City South STP is a secondary treatment plant serving 400 people in North Chesapeake City, Maryland. It discharges treated wastewater near the Chesapeake Bay, a major estuary on the U.S. East Coast.
Chesapeake City North STP is a secondary treatment plant serving 385 people in North Chesapeake City, Maryland. It discharges treated wastewater near the Chesapeake Bay, a major estuary on the U.S. East Coast.
Cecilton WWTP is a secondary treatment plant in Cecilton, Maryland, serving 475 people. It discharges 227.13 thousand cubic meters of treated wastewater annually, with a designed capacity of 378.54 thousand cubic meters.
Harbor View WWTP is a secondary treatment plant in Cecil County, Maryland, serving 437 people. It discharges 124.92 million gallons per year into local waterways near the Chesapeake Bay.
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.
Spring Meadows WWTP is a secondary treatment plant serving 153 people in Spring Meadows, Maryland. It discharges 30.28 thousand cubic meters per year into local waterways.
Ocean Pines WWTP in Showell, Maryland serves 13,000 people. The plant is located within 50 km of the Atlantic coast and discharges into local waterways.
Joppatowne WWTP is a municipal wastewater treatment plant serving approximately 7,000 residents in Joppatowne, Maryland, USA. The facility discharges into the Chesapeake Bay watershed.
Eastern Correctional Institution WWTP serves 4,100 people in Landon Station, Maryland. The facility is located within 50 km of the coast and operates under U.S. Clean Water Act regulations.
UtilityRadar indexes 171 wastewater treatment plants in Maryland, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, Greensboro WWTP has the highest designed capacity at 3,081 m3/day.