Dundee STP
Dundee, OR · Yamhill County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.27 MGD
- NPDES permit
- OR0023388
- Effective
- Permit expires
- August 2027
- Population served
- 3,316
- CWNS 2022
Dundee STP is a publicly owned wastewater treatment works in Dundee, Yamhill County, Oregon, serving about 3,316 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit OR0023388 (effective), which expires in August 2027, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Dundee STP.
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Nearby wastewater treatment plants in Oregon
Dayton · 5 mi away
0.16 MGD
Lafayette · 6 mi away
0.27 MGD
Mcminnville · 8 mi away
2.73 MGD
Carlton · 9 mi away
0.2 MGD
Yamhill · 10 mi away
0.07 MGD
Hubbard · 11 mi away
0.17 MGD
Aurora · 12 mi away
0.08 MGD
Gervais · 12 mi away
0.13 MGD
Dundee 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 November 18, 2025.