183 plants indexed.
North Powder STP is a secondary treatment plant serving 490 people in North Powder, Oregon. It discharges 151.42 megaliters annually and operates under U.S. EPA NPDES regulations.
Oakland STP is an advanced wastewater treatment plant serving approximately 940 people in Oakland, Oregon. It discharges treated water into local waterways, supporting environmental health in the Umpqua River basin.
ODELL STP is an advanced wastewater treatment plant in Hood River County, Oregon, serving 1,653 people. It discharges treated water into the local watershed, supporting downstream water quality.
Pacific City STP is an advanced wastewater treatment plant serving 2,131 people in Pacific City, Oregon. It discharges treated effluent near the Oregon coast, operating under the US Clean Water Act.
PAISLEY STP is a secondary treatment plant serving 250 people in Paisley, Oregon. It discharges 75.71 m³/day of treated wastewater, with a designed capacity of 189.27 m³/day.
PARKDALE STP is a secondary wastewater treatment plant serving 416 people in Parkdale, Oregon. It discharges 234.70 megaliters annually and has a designed capacity of 378.54 megaliters.
Pilot Rock STP is a secondary treatment plant serving 1,540 people in Umatilla County, Oregon. It discharges 643.52 thousand cubic meters annually within the Columbia River Basin.
Port Orford STP is a secondary treatment plant serving 1,135 people in Port Orford, Oregon. It discharges 147.63 million gallons annually and is located within 10 km of the Pacific coast.
POWERS STP is a secondary treatment plant serving 689 residents in Powers, Oregon. It discharges 223.34 million gallons per year and operates under US EPA NPDES regulations.
Prairie City STP is a secondary treatment plant serving 1,145 people in Prairie City, Oregon. It discharges treated wastewater into local waterways, supporting the John Day River basin.
RICHLAND STP is a secondary treatment plant in Baker County, Oregon, serving a small population of 250. It discharges treated wastewater into the local watershed, supporting downstream water quality.
Rockaway Beach STP is a secondary treatment plant serving 1,500 people in Rockaway Beach, Oregon. It discharges treated wastewater near the Pacific coast, operating under US EPA NPDES regulations.
RUFUS STP is a secondary wastewater treatment plant in Rufus, Oregon, serving 270 people. It discharges 155.20 million gallons per year and operates under the US Clean Water Act.
Salishan STP is a secondary wastewater treatment plant in Lincoln County, Oregon, serving approximately 1,100 people. It discharges treated effluent near the Siletz Bay area on the Pacific coast.
SCIO STP is a secondary wastewater treatment plant serving Scio, Oregon. It treats municipal wastewater for a population of 710 with a designed capacity of 3,686.98 cubic meters per day.
Seneca STP is a secondary wastewater treatment plant serving the small community of Seneca, Oregon. It has a designed capacity of 685.16 volume units and discharges treated effluent into the local watershed.
Shady Cove STP is an advanced wastewater treatment plant serving 2,760 people in Shady Cove, Oregon. It discharges 764.65 million gallons annually into the Rogue River basin.
Shoreline Sanitary District STP is an advanced treatment plant in Clatsop County, Oregon, serving 350 people. It discharges 87.06 million gallons per year near the Oregon coast.
SILETZ STP is a secondary wastewater treatment plant in Siletz, Oregon, serving a population of 1,197. It discharges treated effluent into local waterways, supporting environmental protection in the region.
Sisters WW Treatment Improvements is a secondary treatment plant in Deschutes County, Oregon, serving 2,124 people. It discharges 196.84 units of treated wastewater and operates under the US Clean Water Act.