Seward Stp, Village Of
Seward, IL · Winnebago County · Publicly Owned Treatment Works
- Average flow
- 0.007 MGD
- Design flow
- 0.16 MGD
- NPDES permit
- ILG580138
- Effective
- Permit expires
- May 2027
- Population served
- 280
- CWNS 2022
Seward Stp, Village Of is a publicly owned wastewater treatment works in Seward, Winnebago County, Illinois treating an average of 0.007 million gallons per day against a permitted design capacity of 0.16 MGD, serving about 280 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit ILG580138 (effective), which expires in May 2027, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
Unlock
Unlock 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 Seward Stp, Village 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
Pecatonica · 6 mi away
0.14 MGD
German Valley · 7 mi away
0.02 MGD
Leaf River · 8 mi away
0.04 MGD
Byron · 9 mi away
0.28 MGD
Davis · 13 mi away
0.03 MGD
Forreston · 13 mi away
0.08 MGD
Dakota · 13 mi away
0.03 MGD
Rock City · 13 mi away
0.02 MGD
Seward Stp, Village 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 8, 2025.