18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
HAWN STATE PARK wastewater treatment plant serves a small population of 100 in Ste. Genevieve County, Missouri. It provides secondary treatment and discharges 37.85 cubic meters of treated effluent.
Haworth WWT is a secondary treatment plant serving 354 people in Haworth, Oklahoma. It discharges 151.42 thousand cubic meters per year into local waterways.
Hay Wastewater Treatment Plant in New South Wales, Australia, provides secondary treatment for a population of 2,550. The plant discharges treated effluent into the local environment, supporting the Murrumbidgee River catchment.
HAY ON WYE SEWAGE TREATMENT WORKS STW is a secondary treatment plant in Cusop, England, serving 2,100 people. It discharges 467.53 m³/day of treated wastewater into the local environment.
Hay Springs WWTP is a secondary treatment plant serving 927 people in Hay Springs, Nebraska. It discharges 340.69 units of treated wastewater, operating under U.S. EPA NPDES regulations.
Hayden wastewater treatment plant in Hayden, Colorado, serves 1,700 people with secondary treatment. It discharges 946.35 cubic meters of treated wastewater daily, operating under US EPA NPDES regulations.
Hayes Center WWTP is a secondary treatment plant in Hayes County, Nebraska, serving a small population of 240. It discharges 75.71 units of treated wastewater daily.
HAYFIELD STW is a secondary treatment plant in High Peak, England, serving approximately 2,862 people. It discharges 637.18 cubic meters of treated wastewater daily, with a designed capacity of 3,113 cubic meters.
HAYS WWTF is a secondary treatment plant in Hays, Montana, serving 75 people. It discharges 30.28 megaliters of treated wastewater annually and has a designed capacity of 37.85 megaliters.
The Haysi Sewerage System is a secondary treatment plant serving 1,950 residents in Haysi, Virginia. It discharges treated wastewater into local waterways within the Upper Tennessee River Basin.
Hazard WWTP is a secondary treatment plant serving 75 people in Hazard, Nebraska. It discharges 37.85 thousand cubic meters per year into local waterways.
HAZELTON LAGOON is a secondary wastewater treatment plant serving Hazelton, North Dakota, USA. It treats an average daily flow of 75.71 units for a population of 235.
Hazelton STP is a secondary wastewater treatment plant serving 753 people in Hazelton, Idaho. It discharges 272.55 megaliters annually and operates under U.S. EPA NPDES permitting.
HAZELTON WWTP is a secondary treatment facility serving Hazelton, Kansas. It discharges 53.00 units of treated wastewater daily and operates under US EPA NPDES regulations.
HAZELTON WWTP is a secondary treatment plant serving 823 people in Hazleton, Iowa. It discharges 416.40 units of treated wastewater and has a designed capacity of 302.83 units.
Hazen Lagoon is a secondary wastewater treatment plant serving Hazen, North Dakota. It discharges treated effluent into the local watershed, supporting downstream water quality in the Missouri River basin.
Hazlehurst POTW Lagoon is a secondary treatment plant serving 2,149 people in Copiah County, Mississippi. It discharges treated wastewater into local waterways under the US Clean Water Act framework.
Hazyview wastewater treatment plant in Mbombela, Mpumalanga, South Africa, serves 5,180 people with secondary treatment. It discharges 700 cubic meters of treated wastewater daily.
HCUA Ansley POTW is a projected secondary treatment plant in Ansley, Mississippi, serving 450 people. It discharges 227.13 m³/day and is located within 10 km of the Gulf Coast.
HCWandSWMA Eagle Point POTW is a secondary treatment plant in Biloxi, Mississippi, serving 1,442 people. It discharges 310.40 million gallons per year and has a designed capacity of 1,135.62 million gallons per year.