18,358 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
Metolius STP is a secondary treatment plant serving 780 people in Metolius, Oregon. It discharges 363.40 units of treated wastewater, operating under U.S. EPA NPDES regulations.
MAUPIN STP is a secondary treatment plant serving Maupin, Oregon. It discharges treated wastewater into the local watershed, supporting the Deschutes River basin.
Lowell STP is a secondary treatment plant serving 1,010 people in Lowell, Oregon. It discharges treated wastewater into the local watershed, supporting downstream water quality in the Willamette River basin.
Lostine On Sites is a secondary wastewater treatment plant serving 304 people in Lostine, Oregon. It discharges 113.56 megaliters annually, operating under US EPA and Oregon DEQ regulations.
Long Creek STP is a secondary treatment plant serving 177 people in Long Creek, Oregon. It discharges 64.35 thousand cubic meters of treated wastewater annually.
La Pine Special Sewer District is a secondary treatment plant serving 1,600 people in La Pine, Oregon. It discharges 264.98 megaliters annually within the Deschutes River basin.
Jordan Valley STP is a secondary treatment plant serving 250 people in Jordan Valley, Oregon. It discharges 75.71 megaliters of treated wastewater annually, with a designed capacity of 177.91 megaliters.
HUNTINGTON STP is a secondary treatment plant in Lime, Oregon, serving 520 people. It discharges 189.27 megaliters annually and has a designed capacity of 359.61 megaliters.
HINES STP is a secondary treatment plant serving 1,811 people in Harney County, Oregon. It discharges 567.81 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
HEPPNER STP is a secondary wastewater treatment plant serving Heppner, Oregon. It treats municipal wastewater with a designed capacity of 946.35 m³/day and an average discharge volume of 340.69 m³/day.
Halsey STP is a secondary treatment plant serving 740 residents in Halsey, Oregon. It discharges 378.54 m³/day of treated wastewater, with a designed capacity of 745.72 m³/day.
Halfway STP is a secondary treatment plant serving the small community of Halfway, Oregon. It discharges treated wastewater into the local watershed, supporting downstream water quality in the Pine Creek drainage.
Grand Ronde STP is a secondary treatment plant serving about 1,000 people in Grand Ronde, Oregon. It discharges treated wastewater into local waterways, supporting the Yamhill River basin.
Gold Hill STP is a secondary treatment plant in Jackson County, Oregon, serving a population of 1,472. It discharges 643.52 million gallons per year and has a designed capacity of 1,324.89 million gallons per year.
Glide Idleyld Park is a secondary wastewater treatment plant in Douglas County, Oregon, serving a population of 1,690. It discharges 416.40 units of treated effluent and has a designed capacity of 624.59 units.
Glendale STP is a secondary wastewater treatment plant serving approximately 1,100 residents in Glendale, Oregon. The facility discharges treated effluent into local waterways within the Umpqua River basin.
Garibaldi STP is a secondary wastewater treatment plant serving 1,373 people in Garibaldi, Oregon. Located within 10 km of the Pacific coast, it discharges treated effluent into the local watershed.
Fossil STP is a secondary treatment plant serving the town of Fossil, Oregon. It discharges treated wastewater into the local watershed, supporting downstream water quality in the John Day River basin.
ELKTON STP is a secondary treatment plant serving 180 people in Elkton, Oregon. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 105.99 units.
ELGIN STP is a secondary wastewater treatment plant serving Elgin, Oregon. It discharges treated effluent into the local watershed, supporting downstream water quality in the Grande Ronde River basin.