183 plants indexed. Showing 80 matching current filters.
CANNON BEACH STP serves Cannon Beach, Oregon, treating wastewater for approximately 52,250 people. The plant is located near the Pacific coast and operates under U.S. EPA and Oregon DEQ regulations.
Columbia Blvd STP is a major wastewater treatment plant in Portland, Oregon, serving over 720,000 people. It operates under the US Clean Water Act and EPA NPDES permit program.
Coos Bay STP No 1 serves approximately 13,000 people in Coos Bay, Oregon. The plant discharges treated wastewater into the Pacific Ocean via Coos Bay estuary, operating under the US Clean Water Act NPDES permit system.
Coos Bay STP No 2 Empire serves approximately 9,800 residents in Coos Bay, Oregon. The plant operates under the US Clean Water Act's NPDES permit program for municipal wastewater treatment.
Corvallis STP serves approximately 52,450 residents in Corvallis, Oregon, treating municipal wastewater before discharge. The plant operates under the U.S. Clean Water Act framework, with NPDES permits regulating effluent quality.
Cottage Grove STP serves approximately 9,745 residents in Cottage Grove, Oregon. The plant operates under U.S. EPA NPDES permitting and discharges treated wastewater to local waterways.
Dallas STP serves approximately 13,200 people in Polk County, Oregon, treating municipal wastewater before discharge. The plant operates under the U.S. Clean Water Act framework.
Depoe Bay STP serves the coastal community of Depoe Bay, Oregon, with a designed capacity of 1.00 million gallons per day. The plant treats wastewater from a population of approximately 4,472.
DURHAM STP serves over 363,000 people in Tigard, Oregon, as part of the region's municipal wastewater infrastructure. The plant discharges treated effluent into the Tualatin River watershed, which flows to the Willamette River and ultimately the Colu
Enterprise STP serves approximately 2,000 residents in Wallowa County, Oregon. The plant discharges treated wastewater into the local watershed, supporting downstream water quality in the Grande Ronde River basin.
ESTACADA STP is a municipal wastewater treatment plant serving approximately 2,250 residents in Estacada, Oregon, United States. The facility discharges into the local watershed within the Clackamas River basin.
Florence STP serves approximately 6,865 residents in Florence, Oregon. The plant operates under U.S. Clean Water Act regulations, discharging treated wastewater to the Siuslaw River estuary near the Pacific coast.
Forest Grove STP serves approximately 94,000 residents in Forest Grove, Oregon. The plant operates under the US Clean Water Act, treating wastewater before discharge to local waterways.
Grants Pass STP serves approximately 51,766 residents in Grants Pass, Oregon. The plant operates under the U.S. Clean Water Act, discharging treated wastewater into the Rogue River basin.
GRESHAM STP serves approximately 119,000 people in Gresham, Oregon. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
The Harrisburg Lagoon Treatment Plant serves Harrisburg, Oregon, treating wastewater for a population of approximately 2,935. It operates under the US Clean Water Act, with state-level NPDES permitting.
The HERMISTON Recycled Water Plant serves approximately 15,070 residents in Hermiston, Oregon. It operates under the U.S. Clean Water Act, which governs wastewater treatment and discharge for facilities of this scale.
Hillsboro Westside STP serves approximately 43,370 people in Hillsboro, Oregon. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater.
Hood River STP serves approximately 7,788 people in Hood River, Oregon. The plant discharges treated wastewater into the Columbia River, a major waterway that flows to the Pacific Ocean.
Independence STP serves the city of Independence, Oregon, treating municipal wastewater for a population of approximately 6,195. The plant operates under the U.S. Clean Water Act framework.