18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Applegate WWTF is a secondary treatment plant serving 85 people in Placer County, California. It discharges 22.71 units of treated wastewater daily, operating under US EPA NPDES regulations.
Appleton City WWTP is a secondary treatment plant in St. Clair County, Missouri, serving approximately 1,505 people. It discharges treated wastewater into local waterways, supporting the region's water quality.
Appomattox STP No I is a secondary treatment plant serving 1,700 people in Appomattox County, Virginia. It discharges 643.52 units of treated wastewater daily.
Appomattox STP No II is a secondary wastewater treatment plant serving 604 people in Appomattox, Virginia. It discharges 189.27 megaliters per year under US Clean Water Act regulations.
Aquaparque is a secondary wastewater treatment plant in Mérida, Yucatán, Mexico, serving 228 people with a discharge volume of 146.88 units.
Aquatera Airport Wastewater Lagoon is a secondary treatment plant serving 668 people in Grande Prairie, Alberta, Canada. Supporting local water quality.
Aquatera Sexsmith WasteWater Lagoon is a secondary treatment plant in County of Grande Prairie, Alberta, Canada, serving 891 people.
Aquiles Serdán wastewater treatment plant serves Pantelhó, Chiapas, Mexico, with secondary treatment for a population of 1,369. It discharges 129.60 cubic meters daily, operating under Mexico's national water regulations.
Aquiles Serdan 1ra Seccion is a secondary wastewater treatment plant in Jalapa, Tabasco, Mexico, serving about 2,054 people. It has a designed capacity of 247.10 m³/day and discharges 194.40 m³/day.
Aquiles Serdán San Fernando is a secondary wastewater treatment plant in Aquiles Serdán, Tabasco, Mexico, serving 4,564 people. It discharges 432.00 cubic meters of treated wastewater daily.
ARA Arboldswil is a secondary treatment plant serving 256 people in Arboldswil, Basel-Landschaft, Switzerland. It discharges 116.20 m³/day of treated wastewater into the local watershed.
ARA Bennwil is a secondary wastewater treatment plant serving 192 people in Bennwil, Basel-Landschaft, Switzerland. It discharges 87.15 m³/day of treated effluent and has a designed capacity of 450 m³/day.
ARA BURG is a secondary treatment plant serving 128 people in Burg im Leimental, Basel-Landschaft, Switzerland. It discharges 58.10 m³/day of treated wastewater with a designed capacity of 300 m³/day.
ARA GAV Kleinharraserbach 3366 GF is a secondary treatment plant serving 1,350 people in Matzen-Raggendorf, Niederösterreich, Austria. It discharges 605.60 m³/day of treated wastewater.
ARA Hemmiken is a secondary treatment plant serving 135 people in Hemmiken, Basel-Landschaft, Switzerland. It discharges 61.28 m³/day of treated wastewater, operating under Swiss water protection regulations.
ARA HERSBERG is a secondary treatment plant serving 142 people in Hersberg, Basel-Landschaft, Switzerland. It discharges 64.46 m³/day of treated wastewater into the local watershed.
ARA Lackenhof 1632 SB is a secondary treatment plant in Lackenhof, Niederösterreich, Austria, serving 1,920 people with a designed capacity of 3,000 m³/day.
ARA Liedertswil is a secondary treatment plant serving 135 people in Liedertswil, Basel-Landschaft, Switzerland. It discharges 61.28 m³/day of treated wastewater into the local watershed.
ARA LIESBERG is a secondary treatment plant in Liesberg, Basel-Landschaft, Switzerland, serving 1,257 people with a designed capacity of 2,100 m³/day and a discharge volume of 570.58 m³/day.
ARA MAISPRACH is a secondary treatment plant in Maisprach, Basel-Landschaft, Switzerland, serving 402 people. It discharges 182.48 m³/day of treated wastewater into the local watershed.