18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Hillston wastewater treatment plant in New South Wales, Australia, serves a small population of 1,112 with secondary treatment. It discharges 287.63 megalitres annually into the local environment.
Hilltown wastewater treatment plant in County Down, Northern Ireland serves 2,143 people with secondary treatment. It discharges 477.11 megalitres annually and operates under the EU Urban Waste Water Treatment Directive.
HILLVIEW ACRES SUBD is a secondary wastewater treatment plant in Boone County, Missouri, serving 215 people. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 83.28 units.
HILMAR WTP is a secondary treatment plant in Hilmar, California, serving about 5,000 people. It discharges 908.50 megaliters of treated wastewater annually, with a designed capacity of 1,135.62 megaliters.
Hilton Creek WWTF is a secondary treatment plant in Mono County, California, serving 357 people. It discharges 113.56 million gallons per year and has a designed capacity of 302.83 million gallons per year.
Himatangi Beach wastewater treatment plant serves 193 people in Manawatū-Whanganui, New Zealand. It provides secondary treatment and discharges treated wastewater near the coast.
Himmelried Ostwaldeck is a secondary treatment plant in Himmelried, Solothurn, Switzerland, serving 520 people with a designed capacity of 750 m³/day and a discharge volume of 236.04 m³/day.
Himmelried_Westschindelboden is a secondary treatment plant in Himmelried, Solothurn, Switzerland, serving 390 people. It discharges 177.03 m³/day of treated wastewater into the local watershed.
Hinckley wastewater treatment plant serves 693 residents in Hinckley, Utah, with secondary treatment. It discharges 302.83 megaliters annually and has a designed capacity of 378.54 megaliters.
HINDERWELL STW is a secondary wastewater treatment plant in Loftus, England, serving approximately 2,000 people. It discharges treated effluent near the North Sea coast, operating under UK regulations.
HINDMAN STP is a secondary wastewater treatment plant in Knott County, Kentucky, serving a population of 906. It discharges treated effluent into local waterways, supporting the region's water quality.
HINES STP is a secondary treatment plant serving 1,811 people in Harney County, Oregon. It discharges 567.81 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
HINOJOS wastewater treatment plant in Hinojos, Andalucía, Spain, serves a population of 5,223 with secondary treatment. It discharges 946.65 m³/day and has a designed capacity of 5,300 m³/day.
Hinsdale WWTP is a secondary treatment plant serving 275 people in Hinsdale, Montana. It discharges treated wastewater into the local watershed, supporting downstream water quality in the Missouri River basin.
Hinterschmiding wastewater treatment plant in Sonndorf, Bavaria, Germany, serves approximately 3,656 people with secondary treatment. It discharges 857.88 thousand cubic meters annually, operating under EU Urban Waste Water Treatment Directive standa
Hinton WWT is a secondary treatment plant serving approximately 2,175 residents in Hinton, Oklahoma. It discharges 832.79 megaliters of treated wastewater annually, operating under the US Clean Water Act framework.
HINTON WWTP is a secondary treatment plant in Plymouth County, Iowa, serving a population of 808. It discharges 359.61 million gallons per year and has a designed capacity of 264.98 million gallons per year.
Hitchcock WWT is a secondary treatment plant in Hitchcock, Oklahoma, serving 141 people. It discharges 53.00 thousand cubic meters per year with a designed capacity of 75.71 thousand cubic meters per year.
HITTERDAL WWTF is a secondary treatment plant serving 201 people in Hitterdal, Minnesota, USA. It discharges 124.92 volume units of treated wastewater, operating under US Clean Water Act regulations.
Hixton WWTP is a secondary treatment plant serving 536 people in Hixton, Wisconsin. It discharges 151.42 m³/day of treated wastewater, with a designed capacity of 158.99 m³/day.