Royal Lakes Stp, Village Of
Royal Lakes, IL · Macoupin County · Publicly Owned Treatment Works
- Average flow
- 0.00006 MGD
- Design flow
- 0.16 MGD
- NPDES permit
- IL0071391
- Effective
- Permit expires
- December 2026
- Population served
- 281
- CWNS 2022
Royal Lakes Stp, Village Of is a publicly owned wastewater treatment works in Royal Lakes, Macoupin County, Illinois treating an average of 0.00006 million gallons per day against a permitted design capacity of 0.16 MGD, serving about 281 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit IL0071391 (effective), which expires in December 2026, with 22 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 22
- Effluent violations
- 22
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Royal Lakes Stp, Village Of, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Royal Lakes Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Shipman · 4 mi away
0.05 MGD
Bunker Hill · 5 mi away
0.09 MGD
Wilsonville · 7 mi away
0.02 MGD
Mount Clare · 8 mi away
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Benld · 8 mi away
0.11 MGD
Gillespie · 9 mi away
0.06 MGD
Medora · 10 mi away
0.0048 MGD
Brighton · 11 mi away
0.26 MGD
Royal Lakes 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.