18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Castor STP is a secondary treatment plant serving 258 people in Castor, Louisiana. It discharges 75.71 thousand cubic meters per year with a designed capacity of 113.56 thousand cubic meters per year.
Castorland V WWTP is a secondary treatment plant serving 306 people in the Town of Denmark, New York. It discharges 94.64 megaliters per year and has a designed capacity of 143.85 megaliters per year.
Castro Daire Pte Pedrinha is a secondary treatment plant serving 3,000 people in Castro Daire, Portugal. It discharges 500.19 m³/day of treated wastewater into the local watershed.
Castrojeriz wastewater treatment plant serves the town of Castrojeriz in Castilla y León, Spain. It provides secondary treatment for a population of 2,500 and has a designed capacity of 2,500 m³/day.
Castronuovo Sant'Andrea wastewater treatment plant serves the small town of Castronuovo di Sant'Andrea in Basilicata, Italy. It provides secondary treatment for a population of 100.
Cat Lake wastewater treatment plant serves the community of Bizhiw-zaaga'igan / Cat Lake in Northwestern Ontario, Canada. It provides secondary treatment for a population of 448.
Catawba Kennan Joint SC STP is a secondary treatment plant serving 315 people in Kennan, Wisconsin. It discharges 87.06 units of treated wastewater daily, with a designed capacity of 124.92 units.
Catawba WWTP and Sewer System serves 322 people in Clark County, Ohio, with secondary treatment. The plant discharges treated wastewater into local waterways, supporting the region's water quality.
Catawissa Boro STP is a secondary treatment plant serving 1,589 people in Catawissa, Pennsylvania. It discharges treated wastewater into local waterways under US Clean Water Act regulations.
Catawissa WWTP is a secondary treatment plant serving 1,294 people in Catawissa, Missouri. It discharges 378.54 m³/day of treated wastewater into local waterways.
Cateechee Village STP is a secondary wastewater treatment plant in Cateechee, South Carolina, serving 108 people. It discharges 37.85 million gallons per year into local waters.
Cathay Lagoon wastewater treatment plant serves 67 people in Cathay, North Dakota, USA. It provides secondary treatment with a discharge volume of 37.85 units.
Catherine Booth Hospital wastewater treatment plant serves 1,480 people in uMlalazi Local Municipality, KwaZulu-Natal, South Africa. It provides secondary treatment and discharges 200 m³/day.
CATI is a secondary wastewater treatment plant serving the municipality of Catí in the Comunitat Valenciana, Spain. It has a designed capacity of 3,755 m³/day and treats wastewater for a population of approximately 3,595.
CATON STW is a secondary treatment plant in Lancaster, England, serving approximately 2,880 people. It discharges 641.19 cubic meters of treated wastewater daily, with a designed capacity of 10,498 cubic meters.
Catrineholm STW is a secondary treatment plant serving Catrine, East Ayrshire, Scotland. It treats wastewater for a population of 2,421 with a designed capacity of 4,000 m³/day.
Cattaraugus V WWTP and Onsites is a secondary treatment plant serving approximately 495 people in Cattaraugus, New York. It discharges 151.42 megaliters of treated wastewater annually.
CATTERICK STW is a secondary wastewater treatment plant serving 2,223 people in Catterick, North Yorkshire, England. It discharges treated effluent into local watercourses under UK environmental regulations.
CAUDIEL wastewater treatment plant serves Caudiel, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,308 and discharges 580.69 m³/day.
Cavaglià Via Santhià is a secondary treatment plant serving 3,500 people in Cavaglià, Piemonte, Italy. It has a designed capacity of 4,000 m³/day and discharges 960 m³/day.