Niangua WWTP
Niangua, MO · Webster County · Publicly Owned Treatment Works
- Average flow
- 0.03 MGD
- Design flow
- —
- NPDES permit
- MO0095109
- Administratively continued
- Permit expires
- December 2024
- Population served
- 540
- CWNS 2022
Niangua WWTP is a publicly owned wastewater treatment works in Niangua, Webster County, Missouri treating an average of 0.03 million gallons per day, serving about 540 residents. Treatment on site includes biological treatment, other, biosolids aerobic digestion, biosolids drying, screening. It discharges under NPDES permit MO0095109 (administratively continued), which expires in December 2024, with 58 recorded violations in the last three years. Planned upgrades on record: disinfection, uv.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biological Treatment, Other
unit processBiosolids Aerobic Digestion
unit processBiosolids Drying
unit processScreening
unit processDisinfection, UV
planned upgradeUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 58
- Effluent violations
- 58
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Niangua WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Marshfield · 6 mi away
0.51 MGD
Conway · 8 mi away
0.02 MGD
Phillipsburg · 11 mi away
0.008 MGD
Grovespring · 12 mi away
0.01 MGD
Diggins · 15 mi away
0.01 MGD
Fair Grove · 17 mi away
0.26 MGD
Seymour · 18 mi away
0.16 MGD
Fordland · 18 mi away
0.03 MGD
Niangua 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.