26,154 plants indexed worldwide.
Plants where treatment level information is not publicly available.
Arab Riley Maze Creek WWTP serves 4,025 people in Arab, Alabama. The plant discharges treated wastewater into local waterways under US EPA NPDES regulations.
Arabrot Avlop serves Haugesund, Norway, treating wastewater for approximately 32,000 people. The plant is located near the coast and operates under Norway's implementation of the EU Urban Waste Water Treatment Directive.
ARACENA NUEVA is a municipal wastewater treatment plant serving Aracena in Andalucía, Spain. It handles a population of approximately 10,341 and operates under EU regulations.
ARACHES wastewater treatment plant serves La Frasse in Auvergne-Rhône-Alpes, France. It treats wastewater for approximately 12,000 people under EU Urban Waste Water Treatment Directive standards.
ARACHES FLAINE wastewater treatment plant serves the Flaine ski resort area in Magland, Haute-Savoie, France. It treats wastewater from a population equivalent of 12,000 in the Alpine region.
ARACHOVA wastewater treatment plant serves the community of Arachova in Central Greece. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for settlements of this size.
ARADEO wastewater treatment plant serves Aradeo, Puglia, Italy, with a designed capacity of 1.00 m³/day. It is located within 50 km of the coast and serves a population of 11,500.
Aranda de Duero wastewater treatment plant serves approximately 63,400 people in Castilla y León, Spain. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for inland agglomerations.
ARANJUEZ wastewater treatment plant serves approximately 93,000 people in Aranjuez, Comunidad de Madrid, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Arapahoe County WWA in Centennial, Colorado serves approximately 28,300 people. The plant operates under the US Clean Water Act, managing wastewater for a suburban Denver community.
Ararat wastewater treatment plant serves the town of Ararat, Victoria, Australia, with a population of approximately 8,300. The plant is operational and discharges treated effluent inland, contributing to local water quality management.
ARAZURI wastewater treatment plant serves Cendea de Olza / Oltza Zendea in Navarra, Spain. It treats wastewater from a population equivalent of 713,450, operating under EU Urban Waste Water Treatment Directive standards.
ARBIZU LACUNZA wastewater treatment plant serves Lakuntza in Navarra, Spain. It has a designed capacity of 1.00 volume unit and serves a population of 6,467.
Arboga avloppsreningsverk refn serves approximately 15,300 people in Arboga, Sweden. The plant discharges treated wastewater into local waterways within the Norrström drainage basin.
ARBOIS wastewater treatment plant serves Arbois, France, with a population equivalent of 10,830. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Arboledas San Ramon wastewater treatment plant serves Medellín, Veracruz, Mexico. It is located within 50 km of the coast and serves a population of 13,761.
The ARBOREA wastewater treatment plant serves the town of Arborea in Sardinia, Italy, with a population of approximately 13,893. It is located near the coast and operates under EU regulations.
Arborfield Berks STW serves approximately 18,700 people in Arborfield, England. The plant operates under the UK's wastewater regulations, ensuring treated effluent meets environmental standards.
ARBUCIES wastewater treatment plant serves the town of Arbúcies in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 4,320.
ARBUCKLE PSD serves Oak Hill, West Virginia, treating wastewater for a population of approximately 1,952. The plant operates under the US Clean Water Act, with discharge regulated by the EPA and state authorities.