18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
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.
Hlabisa Hospital wastewater treatment plant serves 1,850 people in Mtubatuba Local Municipality, KwaZulu-Natal, South Africa. It provides secondary treatment and discharges 250 m³/day.
Hlanganani Ponds is a secondary treatment plant serving a small population in Makhado Local Municipality, Limpopo, South Africa. It discharges 2.00 megaliters of treated wastewater, supporting local water quality.
Hluhluwe wastewater treatment plant serves 1,850 people in KwaZulu-Natal, South Africa.
HMP Lindholme and Moorland is a secondary wastewater treatment plant serving a population of 2,361 in Doncaster, England. It discharges treated effluent into local watercourses within the Humber River Basin.
Ho Chunk Blue Wing WWTP is a secondary treatment plant serving 200 people in Town of Byron, Wisconsin. It discharges treated wastewater into local waterways under U.S. EPA and state regulations.
HO CHUNK NATION WWTP is a secondary treatment plant serving 638 people in the Town of Komensky, Wisconsin. It discharges 189.27 megaliters of treated wastewater annually.
Hobart V WWTP is a secondary treatment plant serving 370 people in the Village of Hobart, New York. It discharges 147.63 million gallons per year and has a designed capacity of 681.37 million gallons.
Hobhouse wastewater treatment plant serves Mantsopa Local Municipality in Free State, South Africa, with secondary treatment for a population of 3,700. The plant discharges 500 cubic meters of treated effluent daily.
Hocking Co Haydenville WWTP is a secondary treatment plant in Hocking County, Ohio, serving 290 people. It discharges 121.13 million gallons per year and has a designed capacity of 87.06 million gallons per year.
Hocking Co Rockbridge WWTP is a secondary treatment plant serving 200 people in Rockbridge, Ohio. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 105.99 units.