Seminole Wwt
PO Box 1218, Seminole, OK 74818 · Seminole County · Publicly Owned Treatment Works
- Average flow
- 0.92 MGD
- Design flow
- 2.39 MGD
- NPDES permit
- OK0022870
- Effective
- Permit expires
- August 2029
- Population served
- 7,488
- CWNS 2022
Seminole Wwt is a publicly owned wastewater treatment works in Seminole, Seminole County, Oklahoma treating an average of 0.92 million gallons per day against a permitted design capacity of 2.39 MGD, serving about 7,488 residents. It discharges under NPDES permit OK0022870 (effective), which expires in August 2029, with 73 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in October 2008.
Treatment technology
3 treatment structures and unit processes identified at Seminole Wwt.
Available with a free Klarifi account
See the full treatment train at Seminole Wwt: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 73
- Effluent violations
- 5
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 Seminole Wwt in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $3,500
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Oct 2008
Seminole
Administrative order · SDWA, Nat'l Drinking Water Compliance Schedule - Effective Date · Final Order No Penalty · Compliance actions $3,500
Source: EPA ECHO, civil enforcement case 06-2008-1287.
Full case history with a free Klarifi account
Every action against Seminole Wwt with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Seminole Wwt.
No verified contacts on file yet
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Nearby wastewater treatment plants in Oklahoma
Earlsboro · 8 mi away
—
Maud · 10 mi away
0.06 MGD
Wewoka · 11 mi away
0.38 MGD
Cromwell · 14 mi away
0.0065 MGD
Tecumseh · 16 mi away
0.35 MGD
Shawnee · 16 mi away
1.33 MGD
Prague · 17 mi away
0.14 MGD
Holdenville · 18 mi away
0.6 MGD
Seminole Wwt: 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 August 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms