Locust Grove
Locust Grove, OK · Mayes County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.005 MGD
- NPDES permit
- OKG380034
- Effective
- Permit expires
- January 2030
- Population served
- 1,439
- CWNS 2022
Locust Grove is a publicly owned wastewater treatment plant in Locust Grove, Mayes County, Oklahoma, serving about 1,439 residents. Treatment on site includes uncovered lagoons. It discharges under NPDES permit OKG380034 (effective), which expires in January 2030, with 233 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
- 233
- Effluent violations
- 147
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Locust Grove.
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Locust Grove: 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 November 15, 2025.