Elmwood Stp, City Of
Elmwood, IL · Peoria County · Publicly Owned Treatment Works
- Average flow
- 0.32 MGD
- Design flow
- 1.18 MGD
- NPDES permit
- ILG582012
- Effective
- Permit expires
- May 2027
- Population served
- 2,121
- CWNS 2022
Elmwood Stp, City Of is a publicly owned wastewater treatment works in Elmwood, Peoria County, Illinois treating an average of 0.32 million gallons per day against a permitted design capacity of 1.18 MGD, serving about 2,121 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit ILG582012 (effective), which expires in May 2027, with 164 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 164
- Effluent violations
- 150
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Elmwood Stp, City Of.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Illinois
Yates City · 3 mi away
0.09 MGD
Brimfield · 6 mi away
—
Farmington · 7 mi away
0.58 MGD
Maquon · 10 mi away
0.02 MGD
Hanna City · 10 mi away
0.001 MGD
Williamsfield · 11 mi away
0.06 MGD
Fairview · 14 mi away
0.02 MGD
Dahinda · 15 mi away
0.03 MGD
Elmwood 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 September 11, 2026; facility record last updated November 6, 2025.