Somonauk STP

Somonauk, IL · De Kalb County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.75 MGD

NPDES permit: 3603934801; Effective

Permit expires: March 2029

Treatment technology

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

Carrousels / oxidation ditches

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Biogas silos

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Biogas balloons

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Compliance snapshot (last 3 years)

Total violations: 0

Effluent violations: 0

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

Key contacts

Contacts for Somonauk STP are available in the Klarifi platform.

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Names, validated emails and direct phone numbers for decision-makers at Somonauk STP — plus full compliance history and discharge data.

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Nearby wastewater treatment plants in Illinois

Sheridan Sanitary District - STP

Sheridan · 7 mi away

0.32 MGD

Newark Sd STP

Newark · 8 mi away

0.09 MGD

Plano Stp, City Of

Plano · 8 mi away

0.71 MGD

Hinckley Stp, Village Of

Hinckley · 10 mi away

0.19 MGD

Big Rock Stp, Village Of

Big Rock · 11 mi away

0.02 MGD

Earlville Stp, City Of

Earlville · 12 mi away

0.2 MGD

Yorkville-Bristol Sd STP

Yorkville · 12 mi away

2.13 MGD

Shabbona Stp, Village Of

Shabbona · 13 mi away

0.04 MGD

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

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