18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
ANDREW STP is a secondary wastewater treatment plant in Jackson County, Iowa, serving 434 people. It discharges 113.56 megaliters annually and has a designed capacity of 302.83 megaliters.
ANELLO wastewater treatment plant in Guardiagrele, Italy, serves 2,000 people with secondary treatment. It discharges 395.93 m³/day and operates under EU Urban Waste Water Treatment Directive standards.
ANETA LAGOON is a secondary treatment plant serving 222 people in Aneta, North Dakota. It discharges 113.56 megaliters per year and has a designed capacity of 151.42 megaliters.
ANETH wastewater treatment plant serves Aneth / Tʼáá Bííchʼį́įdii, Utah, USA. This secondary treatment facility handles a population of 501 with a discharge volume of 200.63 and designed capacity of 283.91.
Angel Island State Park WWTF is a secondary treatment plant in Novato, California, serving 130 people. It discharges 37.85 m³/day of treated wastewater near the San Francisco Bay.
ANGERVILLE wastewater treatment plant in Le Mérévillois, Centre-Val de Loire, France, serves approximately 4,775 people with secondary treatment and a designed capacity of 6,000 m³/day.
ANGUILLA POTW is a secondary treatment plant serving 762 people in Anguilla, Mississippi. It discharges 416.40 units of treated wastewater and has a designed capacity of 416.39 units.
Angurugu wastewater treatment plant serves the remote community of Angurugu on Groote Eylandt, Northern Territory, Australia. It provides secondary treatment for a population of 920 and discharges treated effluent near the coast.
ANIANE wastewater treatment plant serves Aniane, Occitanie, France. It provides secondary treatment for a population of 3,100 with a designed capacity of 3,900 m³/day.
ANITA STL is a secondary wastewater treatment plant in Anita, Iowa, serving a population of 972. It discharges treated water into local waterways, supporting the region's environmental health.
ANNA wastewater treatment plant serves the town of Anna in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 3,447 and has a designed capacity of 5,000 m³/day.
Annandale Water MSA STW is a secondary treatment plant serving Johnstonebridge, Scotland. It treats wastewater for approximately 2,000 people with a designed capacity of 2,000 m³/day.
Annapolis WWTP is a secondary treatment facility serving 345 people in Annapolis, Missouri. It discharges 124.92 units of treated wastewater daily, with a designed capacity of 136.27 units.
Annawan STP is a secondary wastewater treatment plant serving 886 residents in Annawan, Illinois. It discharges 302.83 m³/day of treated effluent and has a designed capacity of 605.66 m³/day.
Anne biotiigid is a secondary treatment plant in Lohkva, Estonia, serving 82 people. It discharges 18.89 m³/day of treated wastewater.
Anniston WWTP is a secondary treatment facility serving 285 people in Anniston, Missouri. It discharges 121.13 million gallons per year and has a designed capacity of 480.75 million gallons.
Annsville T Taberg STP and Onsites is a secondary treatment plant serving 320 people in Town of Annsville, New York. It discharges 113.56 megaliters per year and operates under US EPA NPDES regulations.
ANORA DOS TORRES wastewater treatment plant serves Dos Torres in Andalucía, Spain, with secondary treatment for a population of 4,160. It discharges 753.99 cubic meters of treated wastewater daily.
ANOVER DE TAJO wastewater treatment plant serves Añover de Tajo, Toledo, Castilla-La Mancha, Spain. It provides secondary treatment for a population of 5,175 and discharges 514.00 volume units.
Anselmo WWTP is a secondary treatment plant in Custer County, Nebraska, serving 189 people. It discharges 37.85 units of treated wastewater daily.