Nokomis Stp, City Of
800 West Hamilton Street, Nokomis, IL 62075 · Montgomery County · Publicly Owned Treatment Works
- Average flow
- 0.21 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- IL0020206
- Administratively continued
- Permit expires
- June 2026
- Population served
- 2,142
- CWNS 2022
Nokomis Stp, City Of is a publicly owned wastewater treatment works in Nokomis, Montgomery County, Illinois treating an average of 0.21 million gallons per day against a permitted design capacity of 0.9 MGD, serving about 2,142 residents. It discharges under NPDES permit IL0020206 (administratively continued), which expires in June 2026, with 96 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Nokomis Stp, City Of.
Available with a free Klarifi account
See the full treatment train at Nokomis Stp, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 96
- Effluent violations
- 91
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Nokomis Stp, City Of, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Nokomis Stp, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Witt · 3 mi away
0.33 MGD
Ohlman · 5 mi away
0.02 MGD
Morrisonville · 12 mi away
0.22 MGD
Fillmore · 13 mi away
0.03 MGD
Raymond · 15 mi away
0.12 MGD
Ramsey · 15 mi away
0.17 MGD
Pana · 16 mi away
1.25 MGD
Coffeen · 16 mi away
0.09 MGD
Nokomis Stp, City Of: 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 August 3, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms