4 plants indexed.
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.
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.
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.
MT ANGEL STP serves 3,700 residents in Marion County, Oregon. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater facilities.