Coalgate Pwa
Coalgate, OK · Coal County · Publicly Owned Treatment Works
- Average flow
- 0.17 MGD
- Design flow
- 0.22 MGD
- NPDES permit
- OKG580028
- Administratively continued
- Permit expires
- July 2026
- Population served
- 3,133
- CWNS 2022
Coalgate Pwa is a publicly owned wastewater treatment plant in Coalgate, Coal County, Oklahoma treating an average of 0.17 million gallons per day against a permitted design capacity of 0.22 MGD, serving about 3,133 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit OKG580028 (administratively continued), which expires in July 2026, with 74 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 74
- Effluent violations
- 62
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Coalgate Pwa.
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Coalgate Pwa: 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 September 11, 2026.