Big Rock Stp, Village Of
Big Rock, IL · Kane County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.23 MGD
- NPDES permit
- IL0079464
- Administratively continued
- Permit expires
- July 2026
- Population served
- 1,126
- CWNS 2022
Big Rock Stp, Village Of is a publicly owned wastewater treatment works in Big Rock, Kane County, Illinois treating an average of 0.02 million gallons per day against a permitted design capacity of 0.23 MGD, serving about 1,126 residents. It discharges under NPDES permit IL0079464 (administratively continued), which expires in July 2026, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
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 Big Rock Stp, Village Of.
No verified contacts on file yet
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Nearby wastewater treatment plants in Illinois
Hinckley · 4 mi away
0.17 MGD
Plano · 8 mi away
0.69 MGD
Elburn · 9 mi away
0.71 MGD
Yorkville · 10 mi away
1.99 MGD
Maple Park · 11 mi away
0.11 MGD
Somonauk · 11 mi away
0.09 MGD
Cortland, Township Of · 12 mi away
—
Newark · 15 mi away
0.06 MGD
Big Rock 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.