Cosby WWTP
Cosby, MO · Andrew County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- —
- NPDES permit
- MO0133841
- Administratively continued
- Permit expires
- September 2024
- Population served
- 200
- CWNS 2022
Cosby WWTP is a publicly owned wastewater treatment works in Cosby, Andrew County, Missouri treating an average of 0.03 million gallons per day, serving about 200 residents. Treatment on site includes aerated lagoons, uncovered lagoons, attached growth, aerobic, disinfection, uv, screening. It discharges under NPDES permit MO0133841 (administratively continued), which expires in September 2024, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Uncovered lagoons
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Attached Growth, Aerobic
unit processDisinfection, UV
unit processScreening
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Compliance snapshot (last 3 years)
- Total violations
- 1
- 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 Cosby WWTP.
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Saint Joseph · 12 mi away
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Union Star · 16 mi away
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Gower · 17 mi away
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Cosby 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 April 5, 2025.