26,154 plants indexed worldwide.
Plants where treatment level information is not publicly available.
Coesfeld wastewater treatment plant serves approximately 115,000 people in Nordrhein-Westfalen, Germany. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Coeur d'Alene S_T Plant serves approximately 49,306 people in Coeur d'Alene, Idaho. The facility operates under the U.S. Clean Water Act, with discharge likely to the Spokane River system.
Coeymans T STP and On Site Sys serves 5,600 people in Coeymans CDP, New York. The plant operates under the US Clean Water Act, discharging treated wastewater into the Hudson River watershed.
Coffeyville WWTP serves approximately 9,600 residents in Coffeyville, Kansas. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater.
Coffs Harbour Sewage Treatment Plant serves approximately 27,867 people in New South Wales, Australia. The operational facility is located near the coast and discharges treated wastewater into the local watershed.
Cofimvaba wastewater treatment plant serves the Intsika Yethu Local Municipality in Eastern Cape, South Africa. It treats wastewater from a population of approximately 8,880 people.
Coggeshall STW serves approximately 9,651 people in Braintree, Essex, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
COGNAC FAUBOURG SAINT MARTIN wastewater treatment plant serves Cognac, France, in the Nouvelle-Aquitaine region. It treats wastewater for approximately 33,000 people, operating under EU Urban Waste Water Treatment Directive standards.
COGNE wastewater treatment plant serves the town of Cogne in Valle d'Aosta, Italy, treating wastewater from approximately 10,000 residents. The plant operates under Italy's implementation of the EU Urban Waste Water Treatment Directive.
Cogolin wastewater treatment plant serves approximately 36,490 people in Provence-Alpes-Côte d'Azur, France. Located within 50 km of the coast, it operates under the EU Urban Waste Water Treatment Directive.
The Cokato Wastewater Plant serves approximately 2,721 residents in Cokato Township, Minnesota. It operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
Colaba wastewater treatment plant in Mumbai, Maharashtra, India serves approximately 274,600 people. The facility is operational and located within 50 km of the coast, discharging into the Arabian Sea.
Colac wastewater treatment plant serves approximately 13,627 people in Colac East, Victoria, Australia. The facility is operational and has a designed capacity of 1.00 unit.
Colares S1 Quinta do CovAEo is a wastewater treatment plant serving 16,470 people in Colares, Portugal. Located near the coast in the Lisbon region, it operates under EU Urban Waste Water Treatment Directive standards.
COLBURN STW serves approximately 20,371 people in Colburn, North Yorkshire, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the River Swale and the Humber Estuary.
COLBY WWTP serves Thomas County, Kansas, treating wastewater for a population of 4,558. The plant operates under the US Clean Water Act, ensuring compliance with NPDES permit requirements.
COLCHESTER STW serves approximately 123,155 people in Colchester, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive, ensuring appropriate treatment for its population tier.
COLD HIENDLEY STW serves the Wakefield area of West Yorkshire, England, treating wastewater for approximately 5,269 people. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
Cold Spring STP serves approximately 4,235 residents in Cold Spring, Minnesota. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.
Cold Spring V WWTP serves the Village of Cold Spring, New York, treating wastewater from a population of approximately 1,983. The plant operates under the US Clean Water Act regulatory framework.