City Of Koshkonong WWTP
Koshkonong, MO · Oregon County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- —
- NPDES permit
- MO0123404
- Effective
- Permit expires
- April 2028
- Population served
- 153
- CWNS 2022
City Of Koshkonong WWTP is a publicly owned wastewater treatment works in Koshkonong, Oregon County, Missouri treating an average of 0.01 million gallons per day, serving about 153 residents. Treatment on site includes dechlorination, disinfection, chlorine/ chloramine. It discharges under NPDES permit MO0123404 (effective), which expires in April 2028, with 10 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
- 10
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at City Of Koshkonong WWTP.
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Nearby wastewater treatment plants in Missouri
Thayer · 9 mi away
0.25 MGD
West Plains · 13 mi away
1.46 MGD
Alton · 16 mi away
0.05 MGD
Mountain View · 28 mi away
0.3 MGD
Bakersfield · 28 mi away
0.51 MGD
Birch Tree · 28 mi away
0.06 MGD
Willow Springs · 30 mi away
0.33 MGD
Winona · 33 mi away
0.09 MGD
City Of Koshkonong WWTP: 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 14, 2024.