18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Colton STP is a secondary wastewater treatment plant in Colton, Washington, serving 395 people. It discharges 227.13 megaliters annually and has a designed capacity of 280.12 megaliters.
Columbia Lagoon is a secondary wastewater treatment plant serving 800 people in Columbia, Alabama. It discharges 492.10 units of treated effluent daily, with a designed capacity of 681.37 units.
Columbia POTW North is a secondary treatment plant serving 986 people in Columbia, Mississippi. It discharges 416.40 units of treated wastewater daily, with a designed capacity of 1135.62 units.
Columbia Sewerage System is a secondary treatment plant serving 480 people in Columbia, Louisiana. It discharges 151.42 megaliters of treated wastewater annually into local waterways.
Columbia WWTP is a secondary treatment plant serving 2,177 people in Columbia, North Carolina. It discharges 908.50 thousand cubic meters of treated wastewater annually, with a design capacity of 2,271.24 thousand cubic meters.
COLUMBIAVILLE WWTF is a secondary treatment plant in Marathon Township, Michigan, serving 873 people. It discharges 378.54 cubic meters of treated wastewater daily, operating under U.S. EPA NPDES regulations.
COLUMBUS JUNCTION STL is a secondary wastewater treatment plant in Columbus Junction, Iowa, serving about 2,935 people. It discharges treated water into local waterways, supporting the Mississippi River basin.
COLUMBUS LAGOON is a secondary treatment plant serving 133 people in Columbus, North Dakota. It discharges 94.64 megaliters annually with a designed capacity of 113.56 megaliters.
Columbus Village of wastewater treatment plant serves 1,664 residents in Columbus, New Mexico. The facility provides secondary treatment and discharges 227.13 thousand cubic meters annually.
COLUMBUS WWTP is a secondary treatment facility serving 1,218 people in Polk County, North Carolina. It discharges treated wastewater into local waterways, with a designed capacity of 3,085.10 volume units.
COLWALL STW is a secondary wastewater treatment plant in Colwall Stone, England, serving approximately 2,254 people. It discharges treated effluent into the local watercourse, supporting the River Severn catchment.
COLWICH WWTP is a secondary treatment plant in Sedgwick County, Kansas, serving 1,364 people. It discharges 465.61 units of treated wastewater daily, with a designed capacity of 707.87 units.
COLYTON and COLYFORD STW is a secondary treatment plant in East Devon, England, serving 2,964 people. It discharges 659.89 m³/day of treated wastewater near the coast.
COMA TEC 20_250 2_P is a secondary treatment plant in Opatów, Poland, serving 396 people with a designed capacity of 2000 m³/day and a discharge volume of 56.46 m³/day.
Comales wastewater treatment plant in Tamaulipas, Mexico, provides secondary treatment for a small community of 2,147 people, discharging 302.40 cubic meters of treated wastewater daily.
Comanche PWA WWT is a secondary treatment plant serving 1,556 people in Comanche, Oklahoma. It discharges treated wastewater into local waterways under US EPA NPDES regulations.
Comanito wastewater treatment plant in Ejido Comanito, Sinaloa, Mexico, provides secondary treatment for a small community of about 1,095 people, with a designed capacity of 129.60 m³/day.
Combaillaux Les Sajolles is a secondary wastewater treatment plant in Combaillaux, Occitanie, France, serving 1,900 people with a designed capacity of 2,200 m³/day.
Comber Wastewater Lagoons in Lakeshore, Ontario serves 450 people with secondary treatment. The facility discharges treated wastewater near Lake Erie, supporting local water quality.
Comer WPCP is a secondary treatment plant serving 351 people in Comer, Georgia. It discharges 151.42 thousand gallons per day and has a designed capacity of 473.18 thousand gallons per day.