Edwardsville Stp, City Of
3900 Wanda Road, Edwardsville, IL 62025 · Madison County · Publicly Owned Treatment Works
- Average flow
- 3.11 MGD
- Design flow
- —
- NPDES permit
- ILL026310
- Effective
- Permit expires
- December 2030
- Population served
- 25,189
- CWNS 2022
Edwardsville Stp, City Of is a publicly owned wastewater treatment works in Edwardsville, Madison County, Illinois treating an average of 3.11 million gallons per day, serving about 25,189 residents. It discharges under NPDES permit ILL026310 (effective), which expires in December 2030, with 2 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Edwardsville Stp, City Of.
Available with a free Klarifi account
See the full treatment train at Edwardsville Stp, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Edwardsville Stp, City Of in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 1
- latest Jul 2005
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Edwardsville Stp, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
16 verified contacts for Edwardsville Stp, City Of, with validated emails and direct phone numbers.
Unlock 16 verified contacts (13 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Edwardsville Stp, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Roxana · 1 mi away
0.18 MGD
East Alton · 7 mi away
0.59 MGD
Alton · 7 mi away
7.8 MGD
Edwardsville · 9 mi away
0.19 MGD
Collinsville · 9 mi away
11.53 MGD
Hamel · 12 mi away
0.08 MGD
Marine · 13 mi away
0.24 MGD
Godfrey · 14 mi away
0.92 MGD
Edwardsville 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 13, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms