Owasso Public Works Authority
Owasso, OK · Tulsa County · Publicly Owned Treatment Works
- Average flow
- 2.51 MGD
- Design flow
- 4.2 MGD
- NPDES permit
- OK0020303
- Effective
- Permit expires
- July 2028
- Population served
- 19,496
- CWNS 2022
Owasso Public Works Authority is a publicly owned wastewater treatment plant in Owasso, Tulsa County, Oklahoma treating an average of 2.51 million gallons per day against a permitted design capacity of 4.2 MGD, serving about 19,496 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit OK0020303 (effective), which expires in July 2028, with 4 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
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Owasso Public Works Authority.
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Nearby wastewater treatment plants in Oklahoma
Tulsa · 1 mi away
17.9 MGD
Catoosa · 7 mi away
0.93 MGD
Sperry · 8 mi away
0.12 MGD
Collinsville · 9 mi away
0.83 MGD
Claremore · 11 mi away
0.4 MGD
Skiatook · 11 mi away
0.8 MGD
Tulsa · 14 mi away
18.57 MGD
Oologah · 14 mi away
0.03 MGD
Owasso Public Works Authority: 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 May 24, 2025.