Denison Municipal Utilities WWTP
Denison, IA · Crawford County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 5.19 MGD
- NPDES permit
- IA0023302
- Effective
- Permit expires
- April 2031
- Population served
- 6,903
- CWNS 2022
Denison Municipal Utilities WWTP is a publicly owned wastewater treatment works in Denison, Crawford County, Iowa, serving about 6,903 residents. Treatment on site includes clarifiers, covered lagoons, uncovered lagoons, biogas silos. It discharges under NPDES permit IA0023302 (effective), which expires in April 2031, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Covered lagoons
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Uncovered lagoons
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Biogas silos
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Denison Municipal Utilities WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Denison Municipal Utilities WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Dow City · 8 mi away
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Vail · 9 mi away
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Schleswig · 10 mi away
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Manilla · 11 mi away
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Charter Oak · 12 mi away
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Kiron · 12 mi away
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Defiance · 13 mi away
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Westside · 15 mi away
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Denison Municipal Utilities WWTP: 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 March 16, 2025.