Greenville, City Of STP
1105 Goulding Ave, Greenville, IA 51343 · Clay County · Publicly Owned Treatment Works
- Average flow
- 0.0031 MGD
- Design flow
- —
- NPDES permit
- IA0079260
- Administratively continued
- Permit expires
- June 2021
- Population served
- —
- CWNS 2022
Greenville, City Of STP is a publicly owned wastewater treatment works in Greenville, Clay County, Iowa treating an average of 0.0031 million gallons per day. It discharges under NPDES permit IA0079260 (administratively continued), which expires in June 2021, with 5 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Greenville, City Of STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Greenville, City Of STP.
No verified contacts on file yet
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Royal · 8 mi away
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Spencer · 8 mi away
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Sioux Rapids · 8 mi away
0.04 MGD
Linn Grove · 10 mi away
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Peterson · 11 mi away
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Everly · 13 mi away
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Rembrandt · 14 mi away
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Greenville, 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 October 26, 2026; facility record last updated March 2, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms