Illiopolis Stp, Village Of

Illiopolis, IL · Sangamon County · Publicly Owned Treatment Works

Average flow: 0.26 MGD

Design flow: 0.5 MGD

NPDES permit: 3603634330; Effective

Permit expires: May 2027

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Aerated lagoons

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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 11

Effluent violations: 11

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Contacts for Illiopolis Stp, Village Of are available in the Klarifi platform.

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Nearby wastewater treatment plants in Illinois

Niantic Stp, Village Of

Niantic · 4 mi away

0.02 MGD

Harristown Stp, Village Of

Harristown · 7 mi away

0.06 MGD

Warrensburg STP

Warrensburg · 10 mi away

0.08 MGD

Blue Mound Stp, Village Of

Blue Mound · 11 mi away

0.07 MGD

Sanitary District Of Decatur

Decatur · 12 mi away

31.93 MGD

Mount Pulaski Stp, City Of

Mount Pulaski · 13 mi away

0.21 MGD

Stonington Stp, Village Of

Stonington · 14 mi away

0.08 MGD

Riverton STP

Riverton · 16 mi away

0.22 MGD

Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated January 2025.

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