Marseilles - South Stp, City Of
2653 North 2553rd Road, Marseilles, IL 61341 · La Salle County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- —
- NPDES permit
- IL0071498
- Effective
- Permit expires
- May 2028
- Population served
- —
- CWNS 2022
Marseilles - South Stp, City Of is a publicly owned wastewater treatment works in Marseilles, La Salle County, Illinois treating an average of 0.05 million gallons per day. It discharges under NPDES permit IL0071498 (effective), which expires in May 2028, with 0 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Marseilles - South Stp, City Of.
Available with a free Klarifi account
See the full treatment train at Marseilles - South Stp, City Of: structures, unit processes and planned upgrades, with 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 Marseilles - South Stp, City Of.
No verified contacts on file yet
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Sheridan · 15 mi away
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Streator · 16 mi away
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Newark · 17 mi away
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Utica · 19 mi away
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Marseilles - South 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 November 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms