Winfield, City Of
21st & Andrews, Winfield, KS 67156 · Cowley County · Publicly Owned Treatment Works
- Average flow
- 1.28 MGD
- Design flow
- —
- NPDES permit
- KS0051926
- Effective
- Permit expires
- November 2030
- Population served
- 10,357
- CWNS 2022
Winfield, City Of is a publicly owned wastewater treatment plant in Winfield, Cowley County, Kansas treating an average of 1.28 million gallons per day, serving about 10,357 residents. It discharges under NPDES permit KS0051926 (effective), which expires in November 2030, with 49 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Winfield, City Of.
Available with a free Klarifi account
See the full treatment train at Winfield, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 49
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
26 verified contacts for Winfield, City Of, with validated emails and direct phone numbers.
Unlock 26 verified contacts (23 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Winfield, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Kansas
Winfield · 5 mi away
0.04 MGD
Oxford · 10 mi away
—
Geuda Springs · 12 mi away
—
Arkansas City · 13 mi away
1.46 MGD
Udall · 13 mi away
—
Burden · 14 mi away
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Dexter · 15 mi away
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Atlanta · 19 mi away
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Winfield, City Of: 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 February 16, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms