18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
COIN WWTP is a secondary treatment plant in Page County, Iowa, serving 278 people. It discharges 113.56 volume units of treated wastewater into local waterways.
Coja wastewater treatment plant serves Côja e Barril de Alva, Portugal, with secondary treatment for a population of 2,500. The plant has a designed capacity of 2,700 m³/day and discharges treated effluent into local water bodies.
Cokedale Town of wastewater treatment plant serves 160 residents in Cokedale, Colorado, with secondary treatment. The plant discharges treated water into the local watershed, supporting the Arkansas River basin.
Cokeville WWTP is a secondary treatment plant serving 535 residents in Cokeville, Wyoming. It discharges 189.27 cubic meters of treated wastewater daily, operating under US EPA NPDES regulations.
Col Esquipula is a secondary wastewater treatment plant serving 7,302 people in Ciudad Altamirano, Guerrero, Mexico. It discharges 691.20 m³/day of treated effluent.
Colan wastewater treatment plant serves 3,803 people in Colán, Piura, Peru. It provides secondary treatment and discharges 864 m³/day near the Pacific coast.
COLBERT PUA WWT is a secondary treatment plant in Bryan County, Oklahoma, serving 1,117 people. It discharges 378.54 cubic meters of treated wastewater daily.
Colchester South Wastewater Treatment Lagoon in Essex, Ontario, Canada provides secondary treatment for a small population of 1,560. The plant discharges treated wastewater near the Lake Erie shoreline.
Colchester WWTP is a secondary treatment plant serving 1,763 people in Colchester, Illinois. It discharges 643.52 million gallons per year and has a designed capacity of 870.64 million gallons.
COLCORD WWT is a secondary treatment plant in Colcord, Oklahoma, serving a population of 819. It discharges treated wastewater into local waterways, supporting the region's water quality.
Cold Brook Fire District No 1 is a secondary wastewater treatment plant in Wilmington, Vermont, serving a small population of 390. It discharges treated effluent into local waterways, supporting the Deerfield River watershed.
Cold Lake First Nations Lagoon is a secondary treatment plant serving 225 people in Alberta, Canada. It discharges 101.00 cubic meters of treated wastewater, supporting local water quality.
Coldstream wastewater treatment plant serves Lennel, Scottish Borders, United Kingdom. This secondary treatment facility handles a population equivalent of 2,413 and discharges treated effluent into the local water environment.
Coldstream AS is a secondary wastewater treatment plant serving 481 people in Kou-Kamma Local Municipality, Eastern Cape, South Africa. It discharges 65.00 units of treated effluent and is located within 10 km of the coast.
COLDWATER POTW NORTH is a secondary treatment plant serving Coldwater, Mississippi. It discharges 321.76 million gallons per year and operates under US EPA NPDES regulations.
Coldwater Wastewater Treatment Plant in Severn, Ontario, Canada, provides secondary treatment for a small population of 1,062. It discharges treated wastewater near the shores of Georgian Bay on Lake Huron.
Coldwater WWTP is a secondary treatment plant serving 754 residents in Coldwater, Kansas. It discharges 283.91 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
Cole Camp WWTP is a secondary treatment facility serving approximately 1,178 residents in Cole Camp, Missouri. It discharges 321.76 thousand cubic meters of treated wastewater annually.
Coleambally wastewater treatment plant in New South Wales, Australia, serves a small population of 805 with secondary treatment. It operates under Australian state and federal water quality regulations.
Colebrook wastewater treatment plant in Tasmania, Australia serves a small population of 453 with secondary treatment. The facility discharges 117.21 megalitres annually into local waterways.