18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
ARGYLE STP is a secondary treatment plant serving 834 people in Argyle, Wisconsin. It discharges 302.83 units of treated wastewater daily, with a designed capacity of 692.73 units.
ARGYLE WWTP is a secondary treatment plant serving 164 people in Argyle, Missouri. It discharges 75.71 thousand gallons per day and operates under U.S. EPA NPDES regulations.
Ariano Irpino Impianto Camporeale Zona PIP is a secondary treatment plant in Campania, Italy, serving a small population. It has a designed capacity of 20,000 m³/day and discharges 5.94 m³/day.
The Ariano Irpino Impianto Cerreto wastewater treatment plant in Campania, Italy, serves a small population of 250 with secondary treatment. It has a designed capacity of 650 m³/day and discharges 49.49 m³/day.
Arichat Sewage Treatment Plant is a secondary treatment facility serving 1,011 people in Arichat, Nova Scotia, Canada. It discharges treated wastewater near the coast of Cape Breton Island.
ARIELLI wastewater treatment plant in Ortona, Italy, serves 2,000 people with secondary treatment. It discharges 395.93 m³/day and is located within 10 km of the Adriatic coast.
Ariogalos aglomeracija is a secondary wastewater treatment plant serving Ariogala, Lithuania. It treats municipal wastewater for approximately 2,500 residents with a designed capacity of 4,357 m³/day.
ARISCHIA wastewater treatment plant serves L'Aquila, Italy, providing secondary treatment for a population of 2,476. It discharges 490.16 m³/day of treated effluent.
ARITON LAGOON is a secondary treatment plant serving 350 people in Dale County, Alabama. It discharges 113.56 megaliters per year and has a designed capacity of 378.54 megaliters.
Arivechi wastewater treatment plant serves the town of Arivechi in Sonora, Mexico, with secondary treatment for a population of 784. It discharges 120.10 cubic meters of treated wastewater daily.
Arizpe wastewater treatment plant in Sonora, Mexico, serves 1,887 people with secondary treatment. It discharges 431.14 cubic meters daily, operating at near-designed capacity of 432.00.
Arkansas City WWTP is a secondary treatment plant serving 366 people in Desha County, Arkansas, USA. It discharges 321.76 thousand cubic meters per year with a designed capacity of 378.54.
ARKANSAW SD 1 STP is a secondary treatment plant serving 555 people in the Town of Waterville, Wisconsin. It discharges 49.21 million gallons per year into local waterways.
The Arkona Sewage Treatment Plant in Lambton Shores, Ontario, Canada, provides secondary treatment for a small population of 356. It discharges 160 cubic meters of treated wastewater daily and is located within 10 km of the coast.
Arkos San Antonio is a secondary wastewater treatment plant in Morelia, Michoacán, Mexico, serving about 9,127 people. It has a designed capacity of 1,555.20 m³/day and discharges 864.00 m³/day.
ARLEE wastewater treatment plant serves 600 people in Lake County, Montana, USA. It provides secondary treatment and discharges 189.27 megaliters annually.
ARLES RAPHELE MOULES is a secondary wastewater treatment plant in Arles, France, serving 2,419 people. It discharges 431.55 m³/day and has a designed capacity of 4,667 m³/day.
ARLES SALIN DE GIRAUD is a secondary wastewater treatment plant in Salin-de-Giraud, Arles, France, serving 1,764 people with a designed capacity of 2,200 m³/day and a discharge volume of 314.69 m³/day.
ARLEY STW is a secondary treatment plant in North Warwickshire, England, serving 3,606 people. It discharges 802.82 m³/day of treated wastewater, with a designed capacity of 7,000 m³/day.
ARLINGTON POND NO 1 is a secondary wastewater treatment plant in Arlington, Georgia, serving a population of 1,266. It discharges treated water into local waterways, supporting the region's environmental health.