Greenfield Wastewater Treatment Plant
Greenfield, IL · Greene County · Publicly Owned Treatment Works
- Average flow
- 0.00006 MGD
- Design flow
- 0.52 MGD
- NPDES permit
- IL0029076
- Effective
- Permit expires
- June 2029
- Population served
- 1,092
- CWNS 2022
Greenfield Wastewater Treatment Plant is a publicly owned wastewater treatment works in Greenfield, Greene County, Illinois treating an average of 0.00006 million gallons per day against a permitted design capacity of 0.52 MGD, serving about 1,092 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit IL0029076 (effective), which expires in June 2029, with 16 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
Unlock
Unlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 16
- Effluent violations
- 16
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Greenfield Wastewater Treatment Plant.
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
Chesterfield · 9 mi away
0.03 MGD
Hettick · 9 mi away
—
Carrollton · 12 mi away
0.3 MGD
Medora · 12 mi away
0.0048 MGD
White Hall · 12 mi away
0.2 MGD
Palmyra · 12 mi away
0.14 MGD
Roodhouse · 14 mi away
0.18 MGD
Murrayville · 17 mi away
0.006 MGD
Greenfield Wastewater Treatment Plant: 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.