18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
ARLINGTON STP is a secondary wastewater treatment plant in Arlington, Oregon, serving a population of 610. It discharges 189.27 megaliters annually and has a designed capacity of 567.81 megaliters.
ARLINGTON WWTP in Reno County, Kansas, serves 459 people with secondary treatment, discharging 166.56 units of treated wastewater. The plant operates under the US Clean Water Act framework.
The Arlington WWTP in Iowa, United States, serves a small population of 429 with secondary treatment. It discharges treated wastewater into local waterways, supporting the region's water quality.
Arlington WWTP and Sewers is a secondary treatment plant serving 1,351 residents in Arlington, Ohio. It discharges 643.52 thousand gallons per day into local waterways.
ARMA WWTP is a secondary treatment plant serving 1,470 people in Arma, Kansas. It discharges 575.38 thousand gallons per day and has a designed capacity of 692.73 thousand gallons per day.
ARMENI wastewater treatment plant serves the community of Καλύβες in Crete, Greece, providing secondary treatment for a population of 2,606. It discharges treated wastewater near the coast, operating under EU regulations.
ARMENTIERES F is a secondary wastewater treatment plant serving Comines-Warneton, Belgium. It treats wastewater for approximately 3,105 people with a designed capacity of 5,000 m³/day.
ARMENTO PONTE DEL CASALE is a secondary treatment plant serving Armento, Basilicata, Italy. It treats wastewater for 800 people with a designed capacity of 2000 m³/day.
ARMSTRONG WWTP is a secondary treatment plant in Howard County, Missouri, serving 287 people. It discharges treated wastewater into local waterways, supporting rural sanitation in the Missouri River basin.
ARMSTRONG WWTP is a secondary treatment plant serving 1,025 people in Emmet County, Iowa. It discharges treated wastewater into local waterways, operating under U.S. EPA NPDES permitting.
Arnac-Pompadour 2 is a secondary treatment plant serving 2,080 people in Nouvelle-Aquitaine, France. It discharges 371 m³/day of treated wastewater into the local watershed.
ARNAD wastewater treatment plant serves Arnad in Valle d'Aosta, Italy, with secondary treatment. It handles a population of 1,700 and has a designed capacity of 13,000 m³/day.
Arneburg IGPA Stendal Ost is a secondary treatment plant in Arneburg, Saxony-Anhalt, Germany, serving 1,713 people with a designed capacity of 2,200 m³/day.
ARNEDILLO is a secondary wastewater treatment plant in Arnedillo, La Rioja, Spain, serving a population of 2,183. It discharges 229.05 m³/day of treated wastewater into the local watershed.
ARNEGARD LAGOON is a secondary treatment plant in McKenzie County, North Dakota, serving 115 people. It discharges 37.85 million gallons per year and operates under US EPA NPDES regulations.
Arnett WWT is a secondary treatment plant in Ellis County, Oklahoma, serving 520 people. It discharges 264.98 thousand cubic meters per year and operates under US EPA NPDES regulations.
Arnold STP is a secondary wastewater treatment plant serving 900 people in Ganns, California. It discharges 302.83 megaliters annually and operates under U.S. EPA and state regulations.
ARNOLD WWTP serves the community of Arnold, Nebraska, providing secondary treatment for a population of 912. The plant discharges treated wastewater into the local watershed.
Arnolds Cove Court is a secondary wastewater treatment plant in Arnold's Cove, Newfoundland and Labrador, Canada, serving 668 residents. It discharges treated effluent near the coast of Newfoundland.
Arnolds Cove Red is a secondary wastewater treatment plant in Arnold's Cove, Newfoundland and Labrador, Canada, serving 668 people.