Shawnee Municipal Auth-South
Shawnee, OK · Pottawatomie County · Publicly Owned Treatment Works
- Average flow
- 1.26 MGD
- Design flow
- 3 MGD
- NPDES permit
- OK0026051
- Terminated
- Permit expires
- November 2024
- Population served
- 22,675
- CWNS 2022
Shawnee Municipal Auth-South is a publicly owned wastewater treatment plant in Shawnee, Pottawatomie County, Oklahoma treating an average of 1.26 million gallons per day against a permitted design capacity of 3 MGD, serving about 22,675 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit OK0026051 (terminated), which expires in November 2024, with 22 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 22
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Shawnee
Shawnee's capital improvement plan lists 27 water, sewer and wastewater line items worth $45M starting 2026–2031. The largest budgeted items are shown here.
All water and sewer capital projects in Shawnee →
| Project | Budget | Years |
|---|---|---|
| Wastewater Treatment Plant Updates | $15,000,000 | 2026–2026 |
| Sewer Pipe Bursting | $10,800,000 | 2026–2035 |
| Walnut Street Water Line Project | $2,400,000 | 2026–2026 |
| Wallace Street and Union Avenue Water Line Project | $2,160,000 | 2031–2035 |
| Edwards, Fay, Alice, and Pesotum Water Line Project | $2,000,000 | 2026–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Shawnee Municipal Auth-South.
No verified contacts on file yet
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Nearby wastewater treatment plants in Oklahoma
Tecumseh · 3 mi away
0.41 MGD
Shawnee · 6 mi away
0.94 MGD
Earlsboro · 8 mi away
—
Mcloud · 12 mi away
0.27 MGD
Meeker · 13 mi away
0.15 MGD
Maud · 15 mi away
0.06 MGD
Seminole · 16 mi away
0.93 MGD
Prague · 16 mi away
0.14 MGD
Shawnee Municipal Auth-South: 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 August 19, 2026.