18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Heyford STW is a secondary treatment plant serving 2,190 people in Cherwell, Oxfordshire, England. It discharges 487.57 m³/day of treated wastewater into local watercourses.
Heywood Wastewater Treatment Plant is a secondary treatment facility serving the town of Heywood in Victoria, Australia. It discharges treated wastewater near the coast, supporting local environmental health.
HG Outfall 1 is a secondary-level municipal wastewater treatment plant serving Harbour Grace, Newfoundland and Labrador, Canada. It discharges treated effluent near the coast of Conception Bay.
HG Outfall 2 is a secondary wastewater treatment plant in Harbour Grace, Newfoundland and Labrador, Canada, serving 891 people. It discharges 400 cubic meters of treated wastewater daily near the coast.
HG Outfall 3 is a secondary wastewater treatment plant in Harbour Grace, Newfoundland and Labrador, Canada, serving approximately 1,114 people.
HG Outfall 4 is a secondary treatment plant in Harbour Grace, Newfoundland and Labrador, serving 668 people. It discharges treated wastewater into the local marine environment near the coast.
HG Outfall 5 is a secondary wastewater treatment plant in Harbour Grace, Newfoundland and Labrador, Canada, serving approximately 1,225 people.
HICKORY FLAT POTW is a secondary wastewater treatment plant serving approximately 535 residents in Hickory Flat, Mississippi, USA. The facility has a designed capacity of 340.69 cubic meters per day and discharges 189.27 cubic meters of treated efflu
Hickory Flats Jonesville is a secondary wastewater treatment plant in Lee County, Virginia, serving about 7,400 people. It discharges treated effluent into local waterways, supporting the region's environmental health.
Hickory Hills North Lagoon is a secondary treatment plant serving 110 people in Johnson County, Missouri. It discharges treated wastewater into local waterways under US EPA NPDES regulations.
Hickory Hills Regional WWTP is a projected secondary treatment plant in Johnson County, Missouri, serving a small population of 580. It has a designed capacity of 264.98 volume units and discharges treated wastewater to local waterways.
Hickory Hills South Lagoon is a secondary treatment plant serving 145 people in Johnson County, Missouri. It discharges 53.00 units of treated wastewater daily with a designed capacity of 200.63 units.
HICKORY POTW is a secondary wastewater treatment plant in Newton County, Mississippi, serving 655 people. It discharges 189.27 megaliters annually and has a designed capacity of 340.69 megaliters.
Hickory Ridge WWTP is a secondary treatment plant serving 272 people in Cross County, Arkansas, USA. It discharges 7.57 million gallons per day into local waterways.
Hico WWTP is a secondary treatment facility serving approximately 1,140 residents in Hico, Texas. It discharges treated wastewater into local waterways, supporting the Brazos River basin.
Hidasnemeti Szennyviztisztito Telep is a secondary treatment plant in Hernádszurdok, Hungary, serving 850 people with a discharge volume of 100.20 m³/day.
Hidvegardo Szennyviztisztito Telep is a secondary treatment plant serving 242 people in Hidvégardó, Hungary. It discharges treated wastewater into local waterways, supporting the region's environmental health.
Higbee WWTP is a secondary treatment plant in Randolph County, Missouri, serving a small population of 568. It discharges treated wastewater into local waterways, supporting the region's water quality.
HIGGINSVILLE I 70 N Lagoon is a secondary treatment plant serving 102 people in Higginsville, Missouri, USA. It discharges 37.85 million gallons per year and has a designed capacity of 87.06 million gallons.
HIGGINSVILLE I 70 S LAG is a secondary wastewater treatment plant in Higginsville, Missouri, serving a small population of 50. It discharges treated effluent into local waterways, supporting the region's water quality.