Kingfisher
301 North Main Street, Kingfisher, OK 73750 · Kingfisher County · Publicly Owned Treatment Works
- Average flow
- 0.5 MGD
- Design flow
- 0.8 MGD
- NPDES permit
- OK0022811
- Effective
- Permit expires
- January 2031
- Population served
- 4,615
- CWNS 2022
Kingfisher is a publicly owned wastewater treatment plant in Kingfisher, Kingfisher County, Oklahoma treating an average of 0.5 million gallons per day against a permitted design capacity of 0.8 MGD, serving about 4,615 residents. It discharges under NPDES permit OK0022811 (effective), which expires in January 2031, with 1 recorded violation in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in March 2026.
Treatment technology
Treatment structures and unit processes at Kingfisher.
Treatment structure data not yet analyzed for this facility.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Kingfisher in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- EPA inspections
- 0
- none on record
Latest case · Mar 2026
Kingfisher LSLI AO
Administrative order · SDWA, National Drinking Water Regulations · Final Order No Penalty
EPA's description of the case:
“SDWA Lead Service Line Inventory (LSLI) Administrative Order (AO) issued by the United States Environmental Protection Agency (EPA) to the City of Kingfisher on March 12, 2026. The AO was issued in…”
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Source: EPA ECHO, civil enforcement case 06-2026-1210.
1 informal enforcement action (notices of violation and similar), the latest in Jan 2026.
Full case history with a free Klarifi account
Every action against Kingfisher with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Kingfisher.
No verified contacts on file yet
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Nearby wastewater treatment plants in Oklahoma
El Reno · 22 mi away
1.13 MGD
Oklahoma City · 23 mi away
12.86 MGD
Edmond · 25 mi away
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Yukon · 26 mi away
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Guthrie · 28 mi away
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Watonga · 28 mi away
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Edmond · 33 mi away
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Union City · 33 mi away
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Kingfisher: 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 September 30, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms