Cowgill WWTP
7358 South State Route B, Cowgill, MO 64637 · Caldwell County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- —
- NPDES permit
- MO0130052
- Effective
- Permit expires
- June 2027
- Population served
- 211
- CWNS 2022
Cowgill WWTP is a publicly owned wastewater treatment works in Cowgill, Caldwell County, Missouri treating an average of 0.03 million gallons per day, serving about 211 residents. It discharges under NPDES permit MO0130052 (effective), which expires in June 2027, with 68 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Cowgill WWTP.
Available with a free Klarifi account
See the full treatment train at Cowgill WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 68
- 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 Cowgill WWTP.
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Nearby wastewater treatment plants in Missouri
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Braymer · 8 mi away
0.15 MGD
Kingston · 9 mi away
0.02 MGD
Hamilton · 13 mi away
0.03 MGD
Hamilton · 14 mi away
0.03 MGD
Hamilton · 14 mi away
0.11 MGD
Breckenridge · 15 mi away
0.05 MGD
Kidder · 18 mi away
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Cowgill 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 October 26, 2026; facility record last updated September 4, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms