Illinois American Water - Rosiclare WWTP
Rosiclare, IL · Hardin County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.88 MGD
- NPDES permit
- IL0034207
- Effective
- Permit expires
- September 2030
- Population served
- —
- CWNS 2022
Illinois American Water - Rosiclare WWTP is a publicly owned wastewater treatment works in Rosiclare, Hardin County, Illinois treating an average of 0.06 million gallons per day against a permitted design capacity of 0.88 MGD. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit IL0034207 (effective), which expires in September 2030, with 18 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
- 18
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Illinois American Water - Rosiclare WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Illinois American Water - Rosiclare WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Elizabethtown · 4 mi away
—
Golconda · 9 mi away
0.001 MGD
Eddyville · 14 mi away
0.0053 MGD
Shawneetown · 22 mi away
0.02 MGD
Equality · 22 mi away
0.25 MGD
Stonefort · 24 mi away
—
Carrier Mills · 24 mi away
0.11 MGD
Harrisburg · 24 mi away
1.1 MGD
Illinois American Water - Rosiclare WWTP: 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 27, 2025.