18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
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.
Ardrossan wastewater treatment plant in South Australia serves 1,536 people with secondary treatment. It discharges treated effluent near the coast of the Yorke Peninsula, supporting local environmental protection.
Ardyaloon One Arm Point wastewater treatment plant in Western Australia serves 339 people with secondary treatment. It discharges 87.66 megalitres annually near the coast of the Dampier Peninsula.
Arena de Hidalgo wastewater treatment plant serves 3,212 people in Tabasco, Mexico, with secondary treatment. It discharges 648.00 m³/day of treated wastewater, with a designed capacity of 864.00 m³/day.
Areyonga wastewater treatment plant serves the remote community of Tempe Downs in Australia's Northern Territory. It provides secondary treatment for a population of 239, discharging approximately 61.76 megalitres annually.
ARGAMASILLA DE CALATRAVA wastewater treatment plant serves 7,500 people in Argamasilla de Calatrava, Castilla-La Mancha, Spain. It provides secondary treatment and discharges 891.45 cubic meters of treated wastewater.
Argenbuhl Eglofs is a closed secondary wastewater treatment plant in Lengatz, Bayern, Germany, serving a population of 1,850. It discharged 468.19 m³/day and had a designed capacity of 1,800 m³/day.
Argentina Dos wastewater treatment plant in Culiacán, Sinaloa, Mexico, serves a small population of 1,460 with secondary treatment. It discharges 138.24 cubic meters of treated wastewater daily.
ARGONIA WWTP is a secondary treatment plant serving Sumner County, Kansas, with a population of 534. It discharges 200.63 million gallons per year and has a designed capacity of 238.48 million gallons per year.
Argusville Lagoon is a secondary wastewater treatment plant serving 475 residents in Argusville, North Dakota. It discharges approximately 189,270 liters per day and has a designed capacity of 264,980 liters.
Argyle wastewater treatment plant serves 47 people in Argyle, Iowa, with secondary treatment. It discharges 22.71 cubic meters per day and operates under US EPA Clean Water Act regulations.