18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Allentown Borough CS_STP is a secondary wastewater treatment plant serving 2,160 people in Allentown, New Jersey. It discharges approximately 746 m³/day and has a design capacity of 901 m³/day.
Allenville WWTP is a secondary treatment plant serving 241 people in Allenville, Missouri. It discharges 79.49 megaliters per year and operates under the US Clean Water Act.
Allerton North Lagoon is a secondary treatment plant serving 173 residents in Allerton, Iowa. It discharges 75.71 million gallons per year and operates under the US Clean Water Act framework.
ALLIGATOR POTW is a secondary treatment plant serving 195 people in Alligator, Mississippi. It discharges 37.85 cubic meters of treated wastewater daily, with a designed capacity of 113.56 cubic meters.
ALLISON LAGOON is a secondary treatment plant serving Allison, Iowa, with a population of 1,000. It discharges treated wastewater into local waterways, supporting the Cedar River watershed.
ALMA wastewater treatment plant serves the town of Alma, Colorado, with secondary treatment for a population of 235. It discharges a daily volume of 113.56 cubic meters, operating under US EPA and state regulations.
Alma Center STP is a secondary treatment plant serving 677 residents in Alma Center, Wisconsin. It discharges 189.27 thousand cubic meters of treated wastewater annually, operating under US EPA NPDES regulations.
Alma Lagoon is a secondary wastewater treatment plant serving 201 people in Alma Parish, New Brunswick, Canada. Located within Fundy National Park, it discharges treated effluent near the Bay of Fundy coast.
ALMA WWTP is a secondary treatment plant serving 970 people in Alma, Wisconsin. It discharges 246.05 million gallons per year and has a designed capacity of 465.60 million gallons per year.
ALMA WWTP is a secondary treatment plant serving 1,340 people in Alma, Nebraska. It discharges 492.10 units of treated wastewater, operating under US Clean Water Act regulations.
ALMA WWTP is a secondary treatment plant serving 402 people in Alma, Missouri. It discharges 113.56 million gallons per year and has a designed capacity of 317.97 million gallons.
Almaden de la Plata wastewater treatment plant in Almadén de la Plata, Andalucía, Spain, serves a population of 4,533 with secondary treatment. The plant is currently closed.
ALMARAZ wastewater treatment plant serves Almaraz, Cáceres, Extremadura, Spain. It provides secondary treatment for a population of 2,300.
ALMENA WWTP is a secondary treatment plant serving 754 people in Town of Clinton, Wisconsin. It discharges 177.91 units of treated wastewater daily, with a designed capacity of 541.31 units.
ALMENA WWTP is a secondary treatment plant serving 447 people in Norton County, Kansas. It discharges 162.77 million gallons per year and operates under U.S. EPA and state regulations.
Almocageme wastewater treatment plant in Colares, Portugal, serves 3,500 people with secondary treatment. The plant is now closed, having discharged treated effluent near the Atlantic coast.
Almodóvar del Campo wastewater treatment plant in Castilla-La Mancha, Spain, serves about 12,500 people with secondary treatment. It discharges treated water into local waterways, supporting the Guadiana basin.
ALMOHARIN wastewater treatment plant in Almoharín, Extremadura, Spain, serves 4,700 people with secondary treatment. It discharges 851.86 cubic meters daily and has a designed capacity of 4,320 cubic meters.
Almoloya wastewater treatment plant serves the town of Almoloya, Hidalgo, Mexico, with secondary treatment. It discharges 285.12 cubic meters of treated wastewater daily, operating under Mexico's national water regulations.
ALMONACID DE ZORITA wastewater treatment plant serves the town of Almonacid de Zorita in Castilla-La Mancha, Spain. It provides secondary treatment for a population of 1,361.