How much wastewater does Guthrie treat?

Guthrie treats an average of 0.76 MGD and is permitted for a design flow of 1 MGD.

What treatment technology does Guthrie use?

Klarifi has identified clarifiers at the Guthrie facility.

What is the NPDES permit for Guthrie?

The facility discharges under NPDES permit OK0027715, currently expired, expiring August 2025.

Is Guthrie in compliance?

Discharge monitoring reports show 63 violations at Guthrie in the last three years. The full history is available in Klarifi.

Who operates Guthrie and how do I contact them?

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

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Guthrie

Guthrie, OK · Logan County · Publicly Owned Treatment Works

Average flow: 0.76 MGD

Design flow: 1 MGD

NPDES permit: OK0027715; Expired

Permit expires: August 2025

Population served: 10,458; CWNS 2022

Guthrie is a publicly owned wastewater treatment plant in Guthrie, Logan County, Oklahoma treating an average of 0.76 million gallons per day against a permitted design capacity of 1 MGD, serving about 10,458 residents. Treatment on site includes clarifiers. It discharges under NPDES permit OK0027715 (expired), which expires in August 2025, with 63 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Compliance snapshot (last 3 years)

Total violations: 63

Effluent violations: 0

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

Key contacts

Decision-makers at Guthrie.

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Guthrie: 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 13, 2026.

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