California South WWTF
California, MO · Moniteau County · Publicly Owned Treatment Works
- Average flow
- 0.92 MGD
- Design flow
- —
- NPDES permit
- MO0023272
- Effective
- Permit expires
- March 2031
- Population served
- 17,000
- CWNS 2022
California South WWTF is a publicly owned wastewater treatment works in California, Moniteau County, Missouri treating an average of 0.92 million gallons per day, serving about 17,000 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, biological treatment, other, disinfection, uv and other unit processes. It discharges under NPDES permit MO0023272 (effective), which expires in March 2031, with 12 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Aerated lagoons
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Uncovered lagoons
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Biological Treatment, Other
unit processDisinfection, UV
unit processFlow Equalization
unit processLagoon, Facultative
unit processScreening
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 12
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at California South WWTF.
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Nearby wastewater treatment plants in Missouri
Clarksburg · 7 mi away
0.01 MGD
Russellville · 10 mi away
0.05 MGD
Tipton · 11 mi away
0.32 MGD
Lohman · 12 mi away
0.02 MGD
Jamestown · 13 mi away
0.02 MGD
Barnett · 16 mi away
0.002 MGD
Hartsburg · 16 mi away
0.0025 MGD
Eldon · 16 mi away
0.38 MGD
California South WWTF: 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 April 5, 2025.