Green Castle WWTF
Green Castle, MO · Sullivan County · Publicly Owned Treatment Works
- Average flow
- 0.004 MGD
- Design flow
- —
- NPDES permit
- MO0103322
- Effective
- Permit expires
- September 2027
- Population served
- 176
- CWNS 2022
Green Castle WWTF is a publicly owned wastewater treatment works in Green Castle, Sullivan County, Missouri treating an average of 0.004 million gallons per day, serving about 176 residents. Treatment on site includes lagoon, anaerobic. It discharges under NPDES permit MO0103322 (effective), which expires in September 2027, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Lagoon, Anaerobic
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 0
- 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 Green Castle WWTF.
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Novinger · 9 mi away
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Milan · 13 mi away
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Kirksville · 16 mi away
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Unionville · 16 mi away
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Unionville · 17 mi away
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Kirksville · 18 mi away
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Queen City · 20 mi away
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Green Castle 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 August 14, 2024.