What is the address of Locust Grove?

The address on the plant’s EPA facility record is PO Box 246, Locust Grove, OK 74352, in Mayes County. Its coordinates are 36.2068, -95.1711. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Locust Grove treat?

Locust Grove is permitted for a design flow of 0.005 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Locust Grove use?

Klarifi has identified one treatment structure or unit process at the Locust Grove facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Locust Grove?

The facility discharges under NPDES permit OKG380034, currently effective, expiring January 2030.

Is Locust Grove in compliance?

Discharge monitoring reports show 241 violations at Locust Grove in the last three years, 155 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Locust Grove and how do I contact them?

Locust Grove is a publicly owned treatment works in Locust Grove, Oklahoma. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Locust Grove

PO Box 246, Locust Grove, OK 74352 · 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. It discharges under NPDES permit OKG380034 (effective), which expires in January 2030, with 241 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Locust Grove.

Available with a free Klarifi account

See the full treatment train at Locust Grove: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 241

Effluent violations: 155

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.

No verified contacts on file yet

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Nearby wastewater treatment plants in Oklahoma

Salina Public Works Auth

Salina · 5 mi away

0.16 MGD

Oowa / Tsc

Pryor · 6 mi away

4.94 MGD

Chouteau Pwa

Chouteau · 9 mi away

0.27 MGD

Pryor Creek WWTP

Pryor · 11 mi away

1.07 MGD

Pensacola Pub Works Authority

Pensacola · 17 mi away

0.0078 MGD

Langley Public Works Authority

Langley · 18 mi away

0.07 MGD

Inola Public Works Authority

Inola · 19 mi away

0.73 MGD

Hulbert Public Works Authority

Hulbert · 20 mi away

0.09 MGD

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 October 26, 2026; facility record last updated November 15, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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