Poplar Grove South Stp, Village Of
Poplar Grove, IL · Boone County · Publicly Owned Treatment Works
- Average flow
- 0.23 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- IL0071447
- Effective
- Permit expires
- July 2030
- Population served
- 5,049
- CWNS 2022
Poplar Grove South Stp, Village Of is a publicly owned wastewater treatment works in Poplar Grove, Boone County, Illinois treating an average of 0.23 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 5,049 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit IL0071447 (effective), which expires in July 2030, with 10 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
- 10
- Effluent violations
- 10
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Poplar Grove South Stp, Village Of, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Poplar Grove South Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Poplar Grove · 2 mi away
0.22 MGD
Capron · 7 mi away
0.14 MGD
Harvard · 13 mi away
0.81 MGD
Marengo · 13 mi away
0.24 MGD
Rockton · 14 mi away
0.33 MGD
Kirkland · 16 mi away
0.14 MGD
Genoa · 18 mi away
0.45 MGD
Davis Junction · 20 mi away
0.22 MGD
Poplar Grove South 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 7, 2025.