Dufur STP
Dufur, OR · Wasco County · Publicly Owned Treatment Works
- Average flow
- 0.0027 MGD
- Design flow
- 0.06 MGD
- NPDES permit
- OR0029050
- Terminated
- Permit expires
- February 2007
- Population served
- 625
- CWNS 2022
Dufur STP is a publicly owned wastewater treatment works in Dufur, Wasco County, Oregon treating an average of 0.0027 million gallons per day against a permitted design capacity of 0.06 MGD, serving about 625 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit OR0029050 (terminated), which expires in February 2007, with 145 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 145
- Effluent violations
- 38
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Dufur STP.
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Maupin · 19 mi away
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Mosier · 21 mi away
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Mount Hood Parkdale · 24 mi away
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Hood River · 24 mi away
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Hood River · 26 mi away
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Government Camp · 33 mi away
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Cascade Locks · 39 mi away
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Dufur STP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated August 19, 2026.