171 plants indexed. Showing 18 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.
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.
Ocean City WWTP serves 205,000 people in Maryland, USA. The plant is located near the Atlantic coast and operates under the US Clean Water Act.
CRISFIELD WWTP serves approximately 5,200 residents in Crisfield, Maryland. The plant is located within 50 km of the coast, discharging into the Chesapeake Bay watershed.
Marley Taylor WRF serves Saint Mary's County, Maryland, treating wastewater for over 45,000 people. The plant is located near the Chesapeake Bay, a major estuary on the Atlantic coast.
Cambridge WWTF and Coll Sys serves Cambridge, Maryland, treating wastewater for approximately 14,722 residents. The plant is located near the Chesapeake Bay, an ecologically sensitive estuary.
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.
Chesapeake Beach WWTP serves approximately 10,672 residents in Calvert County, Maryland. The plant discharges treated wastewater into the Chesapeake Bay watershed, a major estuarine ecosystem on the U.S. East Coast.
Cumberland WWTP serves approximately 61,876 people in Cumberland, Maryland. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.
Perryville WWTP serves approximately 4,200 people in Perryville, Maryland, USA. The plant is located near the coast and operates under the US Clean Water Act regulatory framework.
Piscataway WWTP in Accokeek, Maryland serves approximately 150,827 people. The plant discharges treated wastewater within 50 km of the coast, contributing to the protection of the Chesapeake Bay watershed.
Western Branch WWTP serves Prince George's County, Maryland, with a designed capacity of 1.00 million gallons per day. The plant treats wastewater for over 164,000 residents before discharging into local waterways.
Little Patuxent WWTP serves Savage, Maryland, treating wastewater for over 117,000 people. It operates under the US Clean Water Act, discharging into the Patuxent River watershed.
SOD RUN WWTP serves approximately 91,500 people in Chelsea, Maryland. The facility is located within 50 km of the coast and operates under U. S. EPA NPDES regulations.
Annapolis City WWTP serves 43,538 people in Annapolis, Maryland, as part of the region's municipal wastewater infrastructure. The plant is located within 50 km of the coast, discharging into the Chesapeake Bay watershed.
Broadwater WWTP serves 6,444 people in Anne Arundel County, Maryland, USA. The plant discharges treated wastewater into the Chesapeake Bay watershed, a vital estuarine ecosystem.
Cox Creek WWTP serves over 107,000 people in Riviera Beach, Maryland. The plant is located near the Chesapeake Bay and operates under the US Clean Water Act.
Patapsco WWTP in Baltimore, Maryland serves approximately 462,000 people. It is a major municipal wastewater facility within the Chesapeake Bay watershed.
Back River WWTP in Dundalk, Maryland serves nearly 1 million people. The plant discharges into the Back River, a tidal tributary of the Chesapeake Bay, and operates under the U. S. Clean Water Act.
UtilityRadar indexes 171 wastewater treatment plants in Maryland, with treatment level, capacity, operator and discharge data on each record.
Among the plants on this page, the most-referenced operator is Baltimore City Department of Public Works. UtilityRadar's records show 1 plant linked to this operator.
Among the indexed plants, Ocean Pines WWTP has the highest designed capacity at 1 m3/day.