Overview
Patapsco WWTP in Baltimore, Maryland serves approximately 462,000 people. It is a major municipal wastewater facility within the Chesapeake Bay watershed.
Patapsco WWTP is a large municipal wastewater treatment plant located in the Fairfield area of Baltimore, Maryland, United States. Serving an estimated population of 462,012, it is a significant facility in the region's wastewater infrastructure. The plant is situated near the Patapsco River, which flows into the Chesapeake Bay. As a large agglomeration serving over 150,000 people, the plant is expected to meet advanced treatment standards under the U. S. Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permit program. The designed capacity is reported as 1.00 (likely in million gallons per day), indicating substantial treatment capability. Facilities of this scale typically employ secondary or tertiary treatment to protect sensitive receiving waters. The plant discharges treated effluent into the Patapsco River, a tributary of the Chesapeake Bay. The Chesapeake Bay is the largest estuary in the United States and is ecologically sensitive, supporting diverse aquatic life including blue crabs, oysters, and migratory fish. Nutrient removal is critical in this watershed to combat eutrophication and hypoxia. The plant's performance directly affects the health of the Patapsco River and the broader Bay ecosystem.
Environmental context
The Patapsco WWTP discharges into the Patapsco River, which flows into the Chesapeake Bay, the largest estuary in the United States. The Bay supports a rich ecosystem of fish, shellfish, and waterfowl, but suffers from nutrient pollution. The plant's location within 50 km of the coast means its effluent can influence coastal water quality. Effective treatment is essential to reduce nitrogen and phosphorus loads that contribute to algal blooms and dead zones in the Bay.
Frequently asked questions
Patapsco WWTP is located in the Fairfield area of Baltimore, Maryland, United States, near the Patapsco River.
Patapsco WWTP serves an estimated population of 462,012 people.
The plant discharges treated effluent into the Patapsco River, which flows into the Chesapeake Bay.
As a large municipal plant, Patapsco WWTP operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality under the Clean Water Act.
Plants of this scale typically employ secondary treatment with nutrient removal, and often advanced tertiary treatment to meet stringent discharge limits, especially in sensitive watersheds like the Chesapeake Bay.
Nearby plants