Ej Water Corporation - Montrose STP
Montrose, IL · Effingham County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.19 MGD
- NPDES permit
- IL0063096
- Effective
- Permit expires
- February 2029
- Population served
- 319
- CWNS 2022
Ej Water Corporation - Montrose STP is a publicly owned wastewater treatment works in Montrose, Effingham County, Illinois treating an average of 0.02 million gallons per day against a permitted design capacity of 0.19 MGD, serving about 319 residents. Treatment on site includes covered lagoons. It discharges under NPDES permit IL0063096 (effective), which expires in February 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.
Covered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Ej Water Corporation - Montrose STP.
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Nearby wastewater treatment plants in Illinois
Teutopolis · 6 mi away
—
Sigel · 8 mi away
0.38 MGD
Dieterich · 8 mi away
0.12 MGD
Toledo · 9 mi away
0.08 MGD
Effingham · 10 mi away
1.34 MGD
Neoga · 11 mi away
0.26 MGD
Greenup · 12 mi away
0.29 MGD
Shumway · 14 mi away
0.001 MGD
Ej Water Corporation - Montrose 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 September 1, 2025.