18,358 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
BLY STP is a secondary treatment plant serving 250 people in Bly, Oregon. It discharges 264.98 thousand cubic meters per year into local waterways.
BIGGS SERVICE DISTRICT WW TREATMENT is a secondary treatment plant in Biggs Junction, Oregon, serving 495 people. It discharges 189.27 megaliters annually and has a designed capacity of 299.05 megaliters.
Bay City STP in Idaville, Oregon, serves 1,295 people with secondary treatment. It discharges 454.25 million gallons per year into the local watershed near the Pacific coast.
Aurora STP is a secondary treatment plant in Marion County, Oregon, serving 970 people. It discharges treated wastewater into local waterways, supporting the Willamette River basin.
ARLINGTON STP is a secondary wastewater treatment plant in Arlington, Oregon, serving a population of 610. It discharges 189.27 megaliters annually and has a designed capacity of 567.81 megaliters.
Arch Cape STP is a secondary treatment plant serving 328 residents in Clatsop County, Oregon. It discharges 257.41 megaliters of treated wastewater annually, operating under the US Clean Water Act.
AMITY STP is a secondary treatment plant serving Amity, Oregon, with a population of 1,490. It discharges 757.08 m³/day and has a designed capacity of 582.95 m³/day.
ADRIAN STP is a secondary wastewater treatment plant serving 140 people in Adrian, Oregon. It discharges treated wastewater into local waterways, operating under U.S. EPA and Oregon DEQ regulations.
ADAIR VILLAGE STP is a secondary treatment plant in Adair Village, Oregon, serving 615 people. It discharges 264.98 units of treated wastewater daily, with a designed capacity of 1203.76 units.
Westfir STP is a secondary treatment plant serving 160 people in Westfir, Oregon. It discharges 113.56 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
CRESWELL STP is a secondary treatment plant serving Creswell, Oregon, USA. It treats wastewater for approximately 4,000 residents with a daily discharge volume of 908.50 units.
ST PAUL STP is a secondary wastewater treatment plant in Marion County, Oregon, serving a small population of 354. It discharges treated effluent into the local watershed, contributing to the Willamette River basin.
Gervais STP is a secondary wastewater treatment plant in Gervais, Oregon, serving approximately 2,080 people. It discharges treated effluent into local waterways, supporting the Willamette River basin.
Aumsville STP is a secondary treatment plant in Marion County, Oregon, serving 3,730 people. It discharges 870.65 thousand cubic meters annually, operating under US EPA NPDES regulations.
HOODLAND STP is a secondary treatment plant in Welches, Oregon, serving 4,000 people. It discharges 957.71 thousand cubic meters annually and operates under US EPA NPDES regulations.
Klamath County School District wastewater treatment plant serves Henley, Oregon, with secondary treatment. It discharges 121.13 million gallons per year into the local watershed.
SHARON WWT is a secondary treatment plant in Sharon, Oklahoma, serving a small population of 122. It discharges 37.85 cubic meters of treated wastewater daily.
Mooreland WWT is a secondary treatment plant in Woodward County, Oklahoma, serving a population of 1,226. It discharges 378.54 m³/day of treated wastewater into local waterways.
Fort Supply WWT is a secondary treatment plant serving 328 people in Woodward County, Oklahoma. It discharges 113.56 megaliters of treated wastewater annually.
WAYNOKA WWT is a secondary treatment plant serving Waynoka, Oklahoma, with a population of 993. It discharges 378.54 m³/day and has a designed capacity of 454.25 m³/day.