Falls City STP
Falls City, OR · Polk County · Publicly Owned Treatment Works
- Average flow
- 0.009 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- OR0032701
- Administratively continued
- Permit expires
- March 2025
- Population served
- 453
- CWNS 2022
Falls City STP is a publicly owned wastewater treatment works in Falls City, Polk County, Oregon treating an average of 0.009 million gallons per day against a permitted design capacity of 0.9 MGD, serving about 453 residents. It discharges under NPDES permit OR0032701 (administratively continued), which expires in March 2025, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Falls City STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Oregon
Rickreall · 9 mi away
1.42 MGD
Monmouth · 10 mi away
0.79 MGD
Independence · 11 mi away
0.47 MGD
Willamina · 15 mi away
0.1 MGD
Sheridan · 16 mi away
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Grand Ronde · 16 mi away
0.02 MGD
Corvallis · 17 mi away
0.1 MGD
Amity · 21 mi away
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Falls City 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 October 1, 2025.