Alto Pass Stp, Village Of
65 Pole Town Road, Alto Pass, IL 62905 · Union County · Publicly Owned Treatment Works
- Average flow
- 0.0048 MGD
- Design flow
- 0.17 MGD
- NPDES permit
- IL0080128
- Effective
- Permit expires
- December 2028
- Population served
- —
- CWNS 2022
Alto Pass Stp, Village Of is a publicly owned wastewater treatment works in Alto Pass, Union County, Illinois treating an average of 0.0048 million gallons per day against a permitted design capacity of 0.17 MGD. It discharges under NPDES permit IL0080128 (effective), which expires in December 2028, with 63 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Alto Pass Stp, Village Of.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 63
- 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 Alto Pass Stp, Village Of.
No verified contacts on file yet
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Nearby wastewater treatment plants in Illinois
Cobden · 4 mi away
0.09 MGD
Anna · 7 mi away
0.38 MGD
Ware · 8 mi away
—
Jonesboro · 10 mi away
0.12 MGD
Grand Tower · 11 mi away
0.0088 MGD
Murphysboro · 14 mi away
1.35 MGD
Gorham · 14 mi away
0.0068 MGD
Dongola · 16 mi away
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Alto Pass 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 October 26, 2026; facility record last updated September 18, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms