Diamond Wwtp, Village Of
Diamond, IL · Grundy County · Publicly Owned Treatment Works
- Average flow
- 0.37 MGD
- Design flow
- —
- NPDES permit
- ILL051489
- Effective
- Permit expires
- December 2030
- Population served
- 2,546
- CWNS 2022
Diamond Wwtp, Village Of is a publicly owned wastewater treatment works in Diamond, Grundy County, Illinois treating an average of 0.37 million gallons per day, serving about 2,546 residents. It discharges under NPDES permit ILL051489 (effective), which expires in December 2030, with 16 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
- 16
- Effluent violations
- 15
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Diamond Wwtp, Village Of.
No verified contacts on file yet
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Nearby wastewater treatment plants in Illinois
Coal City · 1 mi away
0.79 MGD
Braidwood · 2 mi away
0.77 MGD
Wilmington · 6 mi away
0.63 MGD
Gardner · 7 mi away
0.11 MGD
South Wilmington · 8 mi away
0.13 MGD
Mazon · 9 mi away
0.05 MGD
Essex · 9 mi away
0.03 MGD
Morris · 9 mi away
0.73 MGD
Diamond Wwtp, 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 December 23, 2024.