18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
HAUGEN STP is a secondary wastewater treatment plant in Haugen, Wisconsin, serving 284 people. It discharges 45.43 units of treated wastewater daily, with a designed capacity of 90.85 units.
HAUGHLEY STW is a secondary treatment plant serving 2,251 people in Mid Suffolk, England. It discharges 501.15 m³/day of treated wastewater into local watercourses.
HAUGHTON STP is a secondary wastewater treatment plant in Harahan, Louisiana, serving 1,700 people. It discharges 378.54 cubic meters per day into the local watershed.
Hauglandshella wastewater treatment plant in Askøy, Norway, serves 1,712 people with secondary treatment. It discharges 742.46 m³/day and is located within 10 km of the coast.
Haunetal _ Neukirchen is a secondary wastewater treatment plant in Neukirchen, Hessen, Germany, serving approximately 2,400 people. It discharges treated effluent into the local watershed, contributing to the protection of regional water quality.
HAVANA WWTP is a secondary treatment plant serving 86 people in Havana, Kansas. It discharges 26.50 volume units daily with a designed capacity of 56.78 volume units.
Havelock wastewater treatment plant serves 571 people in Marlborough, New Zealand, with secondary treatment. It discharges treated effluent near the coast, supporting local water quality.
Havelock Wastewater Treatment Plant serves the community of Havelock-Belmont-Methuen in Ontario, Canada. It provides secondary treatment for a population of 1,510.
HAVENSVILLE WWTP is a secondary treatment plant serving 146 people in Pottawatomie County, Kansas, United States. It discharges treated wastewater into local waterways, supporting regional water quality.
HAVILAND WWTP serves Haviland, Kansas, treating municipal wastewater for a population of 584. The plant provides secondary treatment and discharges approximately 193.06 megaliters per year.
Havreneset Sor RD 6 is a secondary treatment plant serving 768 people in Florø, Norway. It discharges 333.07 m³/day of treated wastewater near the coast of Vestland county.
Hawarden wastewater treatment plant serves the Hurunui District in Canterbury, New Zealand, treating wastewater for a small population of 130 with secondary treatment.
HAWARDEN STP is a secondary wastewater treatment plant serving Hawarden, Iowa. It treats municipal wastewater with a discharge volume of 643.52 and a designed capacity of 2536.22.
Hawea wastewater treatment plant serves the Queenstown-Lakes District in Otago, New Zealand.
Hawk Point WWTP is a secondary treatment plant serving 669 residents in Hawk Point, Missouri. It discharges approximately 303 m³/day of treated wastewater, with a designed capacity of 469 m³/day.
Hawker wastewater treatment plant in South Australia serves a small population of 288 with secondary treatment. The plant discharges treated effluent into the local environment, supporting the arid Flinders Ranges region.
Hawkes Bay Outfall is a secondary treatment plant serving 309 people in Hawkes Bay, Newfoundland and Labrador, Canada.
Hawkeye WWTP is a secondary treatment plant serving 449 people in Hawkeye, Iowa. It discharges 189.27 megaliters of treated wastewater annually, with a designed capacity of 264.98 megaliters.
Hawkins WWTP is a secondary treatment plant serving approximately 1,447 residents in Hawkins, Texas. It discharges treated wastewater into local waterways, supporting the region's water quality.
Hawkins WWTP is a secondary treatment plant serving 305 residents in Hawkins, Wisconsin. It discharges 227.13 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.