Sterling WWTP
Sterling, IL · Whiteside County · Publicly Owned Treatment Works
- Average flow
- 4.38 MGD
- Design flow
- 9 MGD
- NPDES permit
- 3602005361
- ADC
- Permit expires
- September 2024
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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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 Sterling WWTP are available in the Klarifi platform.
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Names, validated emails and direct phone numbers for decision-makers at Sterling WWTP — plus full compliance history and discharge data.
Try Klarifi freeNearby wastewater treatment plants in Illinois
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Tampico · 13 mi away
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Prophetstown · 14 mi away
0.16 MGD
Chadwick · 16 mi away
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Walnut · 19 mi away
0.09 MGD
Lanark · 21 mi away
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Erie · 21 mi away
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Amboy · 21 mi away
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated September 2025.