Midwest City Wwt
Oklahoma City, OK · Oklahoma County · Publicly Owned Treatment Works
- Average flow
- 4.95 MGD
- Design flow
- 15 MGD
- NPDES permit
- OK0026841
- Administratively continued
- Permit expires
- April 2020
- Population served
- 57,288
- CWNS 2022
Midwest City Wwt is a publicly owned wastewater treatment works in Oklahoma City, Oklahoma County, Oklahoma treating an average of 4.95 million gallons per day against a permitted design capacity of 15 MGD, serving about 57,288 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas balloons. It discharges under NPDES permit OK0026841 (administratively continued), which expires in April 2020, with 42 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
- 42
- Effluent violations
- 30
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Oklahoma City
Oklahoma City's capital improvement plan lists 47 water, sewer and wastewater line items worth $322M starting 2026–2026. The largest budgeted items are shown here.
All water and sewer capital projects in Oklahoma City →
| Project | Budget | Years |
|---|---|---|
| Raw Water 2nd Atoka Pipeline - Lake Atoka to Lake Stanley Draper (Citywide) | $174,764,000 | 2026–2026 |
| Hefner WTP Upgrades - 3827 W. Hefner Road (Ward 8) | $15,018,000 | 2026–2026 |
| Citywide Water Main R & R - City Wide (Citywide) | $14,838,000 | 2026–2026 |
| Citywide Sanitary Sewer R & R - City Wide (Citywide) | $14,751,000 | 2026–2026 |
| N Canadian WWT R & R - 12800 N. Anderson Road (Ward 7) | $9,349,000 | 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
1 verified contact for Midwest City Wwt, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Midwest City Wwt, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Oklahoma
Spencer · 3 mi away
0.1 MGD
Del City · 5 mi away
2.08 MGD
Oklahoma City · 7 mi away
39.41 MGD
Valley Brook · 8 mi away
0.03 MGD
Edmond · 12 mi away
6.9 MGD
Harrah · 14 mi away
0.31 MGD
Edmond · 15 mi away
5.61 MGD
Oklahoma City · 16 mi away
14.07 MGD
Midwest City 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 September 11, 2026; facility record last updated August 19, 2026.