Sigourney East WWTP
Sigourney, IA 52591 · Keokuk County · Publicly Owned Treatment Works
- Average flow
- 0.21 MGD
- Design flow
- 2.38 MGD
- NPDES permit
- IA0036595
- Effective
- Permit expires
- April 2030
- Population served
- 2,206
- CWNS 2022
Sigourney East WWTP is a publicly owned wastewater treatment works in Sigourney, Keokuk County, Iowa treating an average of 0.21 million gallons per day against a permitted design capacity of 2.38 MGD, serving about 2,206 residents. It discharges under NPDES permit IA0036595 (effective), which expires in April 2030, with 13 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Sigourney East WWTP.
Treatment structure data not yet analyzed for this facility.
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
1 verified contact for Sigourney East WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Sigourney East WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Delta · 6 mi away
0.01 MGD
What Cheer · 8 mi away
0.09 MGD
Webster · 8 mi away
—
Harper · 9 mi away
—
Keswick · 9 mi away
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South English · 10 mi away
—
Martinsburg · 11 mi away
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Ollie · 12 mi away
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Sigourney East 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 October 26, 2026; facility record last updated December 23, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms