Alpha - Stp, Village Of
Alpha, IL · Henry County · Publicly Owned Treatment Works
- Average flow
- 0.005 MGD
- Design flow
- 0.4 MGD
- NPDES permit
- ILG580019
- Effective
- Permit expires
- May 2027
- Population served
- 902
- CWNS 2022
Alpha - Stp, Village Of is a publicly owned wastewater treatment works in Alpha, Henry County, Illinois treating an average of 0.005 million gallons per day against a permitted design capacity of 0.4 MGD, serving about 902 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit ILG580019 (effective), which expires in May 2027, with 27 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
- 27
- Effluent violations
- 27
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Alpha - 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 Alpha - Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
New Windsor · 3 mi away
0.009 MGD
Woodhull · 4 mi away
0.09 MGD
Viola · 10 mi away
0.03 MGD
Sherrard · 10 mi away
0.05 MGD
Oneida · 11 mi away
0.05 MGD
Oneida · 12 mi away
0.05 MGD
Orion · 12 mi away
0.3 MGD
Cambridge · 12 mi away
0.37 MGD
Alpha - 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.