Secondary treatment level wastewater plants

18,358 plants indexed worldwide.

Biological process removes dissolved organic matter after primary treatment.

18,358 plants

Pawling V WWTP

Village of Pawling, New York, United States

Pawling V WWTP is a secondary treatment plant serving the Village of Pawling, New York. It treats wastewater for approximately 1,849 residents with a design capacity of 1,135.62 volume units.

Secondary 1,849

Hyde Park T SD1 WWTP

Town of Hyde Park, New York, United States

Hyde Park T SD1 WWTP is a secondary treatment plant in Town of Hyde Park, New York, serving 700 people. It discharges 374.76 thousand gallons per day and has a designed capacity of 499.67 thousand gallons per day.

Secondary 700

NYSDOC Green Haven CorrFacSTP

Town of Beekman, New York, United States

NYSDOC Green Haven CorrFacSTP is a secondary treatment plant in Town of Beekman, New York, serving 2,000 people. It discharges 378.54 cubic meters of treated wastewater daily.

Secondary 2,000

Dutchess Co Dalton Farms WWTP

Town of Beekman, New York, United States

Dutchess Co Dalton Farms WWTP is a secondary treatment plant serving 2,055 people in Town of Beekman, New York. It discharges 473.18 million gallons per year and operates under US EPA NPDES regulations.

Secondary 2,055

Dutchess Co Chelsea Cove STP

Pleasant Valley, New York, United States

Dutchess Co Chelsea Cove STP is a secondary wastewater treatment plant in Pleasant Valley, New York, serving 1,253 people. It discharges treated effluent into local waterways under US EPA NPDES regulations.

Secondary 1,253

Shelter Island T STP

Town of Shelter Island, New York, United States

Shelter Island T STP is a secondary treatment plant serving 280 people in Town of Shelter Island, New York. It discharges treated wastewater near the coast of Long Island.

Secondary 280

East Hampton T WWTP

Springs, New York, United States

East Hampton T WWTP in Springs, New York, serves 50,000 people with secondary treatment. The plant discharges 87.06 million gallons per day into local waters near the Atlantic coast.

Secondary 50,000

Sag Harbor V WWTP

Village of Sag Harbor, New York, United States

Sag Harbor V WWTP is a secondary treatment plant serving 4,340 people in the Village of Sag Harbor, New York. It discharges treated wastewater near the coast of Long Island.

Secondary 4,340

Riverhead T Community College WWTP

Town of Riverhead, New York, United States

Riverhead T Community College WWTP is a secondary treatment plant serving 550 people in Town of Riverhead, New York. It discharges 132.49 volume units and is located within 10 km of the coast.

Secondary 550

Ocean Beach V STP

Town of Islip, New York, United States

Ocean Beach V STP is a secondary treatment plant in Town of Islip, New York, serving 4,638 people. It discharges 866.86 thousand cubic meters annually and is located within 10 km of the coast.

Secondary 4,638

Suffolk Co SCSD 13 Windwatch STP

Town of Islip, New York, United States

Suffolk Co SCSD 13 Windwatch STP is a secondary treatment plant in Town of Islip, New York, serving 4,000 people. It discharges treated wastewater near the coast, operating under US EPA NPDES regulations.

Secondary 4,000

Suffolk Co SCSD YaphankCommCSTP

Town of Brookhaven, New York, United States

Suffolk Co SCSD YaphankCommCSTP is a secondary treatment plant in Town of Brookhaven, New York, serving 2,500 people. It discharges 363.40 megaliters per year and is located within 10 km of the coast.

Secondary 2,500

Suffolk Co SCSD20EWFloyd WWTP

Ridge, New York, United States

Suffolk Co SCSD20EWFloyd WWTP is a secondary treatment plant in Ridge, New York, serving 2,050 people. It discharges 757.08 cubic meters daily and operates under US EPA NPDES regulations.

Secondary 2,050

Suffolk CoSCSD18Heart IndPkSTP

Town of Smithtown, New York, United States

Suffolk CoSCSD18Heart IndPkSTP is a secondary treatment plant serving 1,500 people in the Hauppauge Industrial Park, Town of Smithtown, New York. It discharges 537.53 units of treated wastewater daily.

Secondary 1,500

Suffolk Co SCSD22 Hauppauge STP

Hauppauge, New York, United States

Suffolk Co SCSD22 Hauppauge STP is a secondary treatment plant in Hauppauge, New York, serving 1,307 people. It discharges 370.97 units of treated wastewater near the coast.

Secondary 1,307

Suffolk Co SCSD 28 Fairfield

Town of Smithtown, New York, United States

Suffolk Co SCSD 28 Fairfield is a secondary treatment plant in Town of Smithtown, New York, serving 1,000 people. It discharges 333.12 units of treated wastewater daily, with a designed capacity of 529.96 units.

Secondary 1,000

Suffolk Co SCSD7 Medford W STP

North Bellport, New York, United States

Suffolk Co SCSD7 Medford W STP is a secondary treatment plant in North Bellport, New York, serving 3,010 people. It discharges 972.85 thousand cubic meters annually within 10 km of the coast.

Secondary 3,010

Suffolk Co SCSD8 StrathmoreRidge

Ridge, New York, United States

Suffolk Co SCSD8 StrathmoreRidge is a projected secondary treatment plant in Ridge, New York, serving 594 people. It discharges 283.33 m³/day of treated wastewater near the Long Island coast.

Secondary 594

Alto Water and Sanitation District

Ruidoso, New Mexico, United States

Alto Water and Sanitation District serves Ruidoso, New Mexico, with secondary treatment for a population of 2,120. The plant discharges 302.83 volume units into local waterways, supporting community wastewater management.

Secondary 2,120

Chaparral

Chaparral, New Mexico, United States

Chaparral wastewater treatment plant serves 1,463 people in Chaparral, New Mexico, with secondary treatment. It discharges 302.83 cubic meters of treated effluent daily.

Secondary 1,463
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