How much wastewater does Colbert Wwt treat?

Colbert Wwt treats an average of 0.11 MGD and is permitted for a design flow of 0.1 MGD.

What treatment technology does Colbert Wwt use?

Klarifi has identified aerated lagoons, uncovered lagoons at the Colbert facility.

What is the NPDES permit for Colbert Wwt?

The facility discharges under NPDES permit OKG580017, currently administratively continued, expiring July 2026.

Is Colbert Wwt in compliance?

Discharge monitoring reports show 122 violations at Colbert Wwt in the last three years, 12 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Colbert Wwt and how do I contact them?

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

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Colbert Wwt

Colbert, OK · Bryan County · Publicly Owned Treatment Works

Average flow: 0.11 MGD

Design flow: 0.1 MGD

NPDES permit: OKG580017; Administratively continued

Permit expires: July 2026

Population served: 1,177; CWNS 2022

Colbert Wwt is a publicly owned wastewater treatment works in Colbert, Bryan County, Oklahoma treating an average of 0.11 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 1,177 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit OKG580017 (administratively continued), which expires in July 2026, with 122 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Aerated lagoons

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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 122

Effluent violations: 12

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Colbert Wwt.

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Colbert 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 14, 2026.

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