18,348 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Harmony Hills WWTP is a secondary treatment facility in Holloway, Louisiana, serving approximately 248 people. It discharges 151.42 units of treated wastewater daily, operating under US EPA NPDES regulations.
Harmony WWTP is a secondary treatment plant serving 788 people in Harmony, North Carolina. It discharges 302.83 thousand cubic meters per year and has a designed capacity of 946.35 thousand cubic meters per year.
HARPER WWTP is a secondary treatment plant serving 147 people in Keokuk County, Iowa. It discharges 30.28 megaliters of treated wastewater annually, with a designed capacity of 75.71 megaliters.
Harpers Ferry WWTP is a secondary treatment plant serving 330 people in Harpers Ferry, Iowa. It discharges 113.56 million gallons per year and operates under U.S. EPA NPDES regulations.
Harrah S_T Facility is a secondary wastewater treatment plant serving 512 people in Harrah, Washington. It discharges 151.42 megaliters annually and has a designed capacity of 302.83 megaliters.
Harrington S T FAC is a secondary wastewater treatment plant in Harrington, Washington, serving 420 people. It discharges 253.62 million gallons annually and operates under the US Clean Water Act.
Harris Road Outfall is a secondary treatment plant serving 178 people in unincorporated Newfoundland, Canada. It discharges treated wastewater near the coast of Newfoundland and Labrador.
HARRIS WWTP is a secondary treatment plant in Harris, Iowa, serving 170 people. It discharges 37.85 units of treated wastewater daily, with a designed capacity of 75.71 units.
Harrison S_T Facility is a secondary wastewater treatment plant serving 203 people in Harrison, Idaho. It discharges treated water into the local watershed, supporting the Coeur d'Alene Lake basin.
Harrison WWTF is a secondary treatment plant serving 2,108 people in Harrison, Michigan. It discharges 454.25 thousand gallons per day and has a designed capacity of 832.79 thousand gallons per day.
HARRISON WWTP is a secondary treatment plant in Sioux County, Nebraska, serving 346 people. It discharges 151.42 volume units and operates under US Clean Water Act regulations.
Harriston WWTP is a secondary treatment plant serving 423 people in Grottoes, Virginia. It discharges 147.63 megaliters of treated wastewater annually into the local watershed.
Harristown STP is a secondary treatment plant serving 1,454 people in Harristown, Illinois. It discharges treated wastewater into local waterways, operating under US EPA NPDES regulations.
Harrisville STP is a secondary treatment plant serving 276 people in Harrisville, Michigan. It discharges 227.13 thousand gallons per day and operates near the Lake Huron coastline.
Harrod WWTP and Sewer System is a secondary treatment plant serving 761 residents in Harrod, Ohio. It discharges 227.13 megaliters of treated wastewater annually, operating under U.S. Clean Water Act regulations.
Harry S Truman State Park wastewater treatment plant in Benton County, Missouri, serves a small population of 300 with secondary treatment. It discharges 113.56 megaliters annually, operating under US EPA Clean Water Act regulations.
Hart WWTP is a secondary treatment facility serving Nazareth, Texas. It discharges treated wastewater into the local watershed, supporting water quality in the region.
Hartbeespoort Wastewater Treatment Plant serves 666 people in Madibeng Local Municipality, North West, South Africa.
Hartenfels wastewater treatment plant in Herschbach, Rheinland-Pfalz, Germany, serves approximately 2,200 people with secondary treatment and a designed capacity of 3,000 m³/day.
Hartenholm wastewater treatment plant in Schleswig-Holstein, Germany, serves about 2,864 people with secondary treatment. It has a designed capacity of 4,000 m³/day and discharges 347 m³/day.