Olmsted Stp, Village Of
Olmsted, IL · Pulaski County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.18 MGD
- NPDES permit
- ILG580052
- Effective
- Permit expires
- May 2027
- Population served
- 294
- CWNS 2022
Olmsted Stp, Village Of is a publicly owned wastewater treatment works in Olmsted, Pulaski County, Illinois, serving about 294 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit ILG580052 (effective), which expires in May 2027, with 12 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
- 12
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Olmsted 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 Olmsted Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
New Grand Chain · 7 mi away
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Mounds · 8 mi away
0.03 MGD
Ullin · 9 mi away
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Tamms · 10 mi away
0.07 MGD
Karnak · 11 mi away
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Cypress · 12 mi away
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Dongola · 13 mi away
0.08 MGD
Joppa · 14 mi away
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Olmsted 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 6, 2025.