Ionia WWTF
A Street, Ionia, MO 65335 · Benton County · Publicly Owned Treatment Works
- Average flow
- 0.0036 MGD
- Design flow
- —
- NPDES permit
- MO0130028
- Administratively continued
- Permit expires
- March 2026
- Population served
- 75
- CWNS 2022
Ionia WWTF is a publicly owned wastewater treatment works in Ionia, Benton County, Missouri treating an average of 0.0036 million gallons per day, serving about 75 residents. It discharges under NPDES permit MO0130028 (administratively continued), which expires in March 2026, with 121 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Ionia WWTF.
Available with a free Klarifi account
See the full treatment train at Ionia WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 121
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ionia WWTF.
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Nearby wastewater treatment plants in Missouri
Cole Camp · 6 mi away
0.2 MGD
Green Ridge · 10 mi away
0.03 MGD
Windsor · 12 mi away
0.37 MGD
Sedalia · 14 mi away
2.48 MGD
Sedalia · 15 mi away
1.88 MGD
Calhoun · 16 mi away
0.03 MGD
Sedalia · 17 mi away
1.04 MGD
Warsaw · 17 mi away
0.43 MGD
Ionia 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 October 26, 2026; facility record last updated September 3, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms