Roxana STP
Roxana, IL · Madison County · Publicly Owned Treatment Works
- Average flow
- 0.21 MGD
- Design flow
- 2.08 MGD
- NPDES permit
- IL0077356
- Effective
- Permit expires
- August 2029
- Population served
- 4,779
- CWNS 2022
Roxana STP is a publicly owned wastewater treatment works in Roxana, Madison County, Illinois treating an average of 0.21 million gallons per day against a permitted design capacity of 2.08 MGD, serving about 4,779 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons. It discharges under NPDES permit IL0077356 (effective), which expires in August 2029, with 6 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
- 6
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Roxana STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Roxana STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Edwardsville · 1 mi away
2.3 MGD
East Alton · 6 mi away
0.51 MGD
Alton · 6 mi away
5.38 MGD
Edwardsville · 10 mi away
0.18 MGD
Collinsville · 10 mi away
2.59 MGD
Hamel · 12 mi away
0.08 MGD
Godfrey · 13 mi away
0.6 MGD
Marine · 14 mi away
0.11 MGD
Roxana STP: 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 March 28, 2025.