Iowa City, City Of (south) STP
Iowa City, IA · Johnson County · Publicly Owned Treatment Works
- Average flow
- 10.9 MGD
- Design flow
- 43.3 MGD
- NPDES permit
- 3604477042
- Effective
- Permit expires
- July 2030
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 13
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
26 verified contacts for Iowa City, City Of (south) STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Iowa City, City Of (south) STP — plus full compliance history and discharge data.
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated March 2025.