Emerson City Of STP
Emerson, IA · Mills County · Publicly Owned Treatment Works
- Average flow
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- Design flow
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- NPDES permit
- IA0024562
- Administratively continued
- Permit expires
- April 2023
- Population served
- 403
- CWNS 2022
Emerson City Of STP is a publicly owned wastewater treatment works in Emerson, Mills County, Iowa, serving about 403 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit IA0024562 (administratively continued), which expires in April 2023, with 8 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 8
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Emerson City Of STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Emerson City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Red Oak · 9 mi away
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Henderson · 9 mi away
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Macedonia · 12 mi away
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Randolph · 13 mi away
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Essex · 13 mi away
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Silver City · 14 mi away
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Carson · 15 mi away
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Tabor · 15 mi away
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Emerson City Of STP: 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 February 9, 2025.