18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
ARAPAHO WWT is a secondary treatment plant serving 748 people in Custer County, Oklahoma. It discharges 302.83 units of treated wastewater daily, with a designed capacity of 340.69 units.
ARAPAHOE WWTP serves the community of Arapahoe, Nebraska, with secondary treatment. The plant has a designed capacity of 454.25 m³/day and treats an average daily flow of 378.54 m³/day.
ARAS DE LOS OLMOS wastewater treatment plant serves the municipality of Aras de los Olmos in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,460.
Aratichanguio wastewater treatment plant in Guerrero, Mexico, serves 1,519 people with secondary treatment. It discharges 172.80 m³/day of treated wastewater, with a designed capacity of 259.20 m³/day.
Aratula wastewater treatment plant in Queensland, Australia, serves approximately 1,275 people with secondary treatment. It discharges treated effluent into local waterways, supporting the region's environmental health.
Arborg Wastewater Lagoon in Manitoba, Canada, serves 702 people with secondary treatment. It discharges 315.10 megaliters annually, supporting local water quality in the Interlake region.
ARBYRD WWTP is a secondary treatment plant serving 509 people in Arbyrd, Missouri. It discharges 242.27 units of treated wastewater daily, with a designed capacity of 299.05 units.
ARCADIA STL is a secondary wastewater treatment plant in Arcadia Township, Carroll County, Iowa, serving 483 people. It discharges treated wastewater into local waterways, supporting the region's water quality.
ARCADIA WWTP is a secondary treatment plant serving 391 people in Crawford County, Kansas. It discharges 147.63 units of treated wastewater daily, with a designed capacity of 162.77 units.
ARCADIA WWTP is a secondary treatment plant serving Arcadia, Nebraska, with a design capacity of 113.56 volume units. It discharges treated wastewater into local waterways, supporting the region's water quality.
Arcadia WWTP East is a secondary treatment plant serving 120 people in Arcadia, Missouri. It discharges 37.85 m³/day of treated wastewater, with a designed capacity of 45.42 m³/day.
ARCADIA WWTP WEST is a secondary treatment plant in Arcadia, Missouri, serving a small population of 488. It discharges 170.34 units of treated wastewater daily, with a designed capacity of 208.20 units.
Arch Cape STP is a secondary treatment plant serving 328 residents in Clatsop County, Oregon. It discharges 257.41 megaliters of treated wastewater annually, operating under the US Clean Water Act.
Archer City WWTP is a secondary treatment facility serving 1,800 residents in Archer City, Texas. The plant discharges treated wastewater into local waterways, supporting the region's water quality management.
ARCHIE WWTP is a secondary treatment plant serving Archie, Missouri. It discharges treated wastewater into local waterways, supporting the region's water quality management.
ARCO S_T FACILITY is a secondary wastewater treatment plant serving Arco, Idaho. It treats approximately 995 residents with a designed capacity of 1,022.06 volume units.
ARCOLA POTW is a secondary wastewater treatment plant serving 564 people in Arcola, Mississippi. It discharges 151.42 megaliters annually and has a designed capacity of 340.69 megaliters.
ARCOS DE JALON wastewater treatment plant serves the town of Arcos de Jalón in Soria, Castilla y León, Spain. It provides secondary treatment for a population of 2,950.
ARDMORE AIRPARK WWT is a secondary treatment plant serving Ardmore, Oklahoma. It discharges treated wastewater into local waterways, supporting the Red River basin.
ARDO wastewater treatment plant serves Gourin, Bretagne, France, providing secondary treatment for a population of 4,722. It discharges 842.40 m³/day of treated wastewater, with a designed capacity of 90,833 m³/day.