183 plants indexed.
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.
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.
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.
Hubbard STP is an advanced wastewater treatment plant serving 2,285 residents in Hubbard, Oregon. It discharges 492.10 million gallons per year into local waterways.
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.
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.
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.
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.
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.
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.
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.
MAUPIN STP is a secondary treatment plant serving Maupin, Oregon. It discharges treated wastewater into the local watershed, supporting the Deschutes River basin.
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.
Mill City Sewage System is a secondary treatment plant serving 1,585 people in Mill City, Oregon. It discharges an average of 223.34 thousand cubic meters per year into the local watershed.
MITCHELL STP is a secondary wastewater treatment plant in Mitchell, Oregon, serving a population of 270. It discharges 102.21 volume units and has a designed capacity of 102.21.
MONROE STP is a secondary treatment plant serving 610 people in Monroe, Oregon. It discharges 446.68 volume units daily with a designed capacity of 681.37, operating under U.S. Clean Water Act regulations.
MOSIER STP is a secondary treatment plant in Wasco County, Oregon, serving 430 people. It discharges 113.56 units of treated wastewater and has a designed capacity of 321.76 units.
Mount Vernon STP is a secondary wastewater treatment plant in Mount Vernon, Oregon, serving a population of 695. It discharges treated effluent into the local watershed, supporting downstream water quality.
Neskowin Regional Sanitary Authority serves 510 people in Neskowin, Oregon, with advanced wastewater treatment. The plant discharges 416.40 megaliters annually into the local coastal environment.
NETARTS OCEANSIDE SANITARY DISTRICT is a secondary treatment plant in Oceanside, Oregon, serving about 1,867 people. It discharges 492.10 megaliters of treated wastewater annually, with a designed capacity of 1,514.16 megaliters.