How much wastewater does City Of Garrison treat?

City Of Garrison treats an average of 0.09 MGD and is permitted for a design flow of 0.12 MGD.

What treatment technology does City Of Garrison use?

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

What is the NPDES permit for City Of Garrison?

The facility discharges under NPDES permit TX0076503, currently effective, expiring September 2026.

Is City Of Garrison in compliance?

Discharge monitoring reports show 105 violations at City Of Garrison in the last three years, 88 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of Garrison and how do I contact them?

City Of Garrison is a publicly owned treatment works in Garrison, Texas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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City Of Garrison

Garrison, TX · Nacogdoches County · Publicly Owned Treatment Works

Average flow: 0.09 MGD

Design flow: 0.12 MGD

NPDES permit: TX0076503; Effective

Permit expires: September 2026

Population served: 1,266; CWNS 2022

City Of Garrison is a publicly owned wastewater treatment plant in Garrison, Nacogdoches County, Texas treating an average of 0.09 million gallons per day against a permitted design capacity of 0.12 MGD, serving about 1,266 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit TX0076503 (effective), which expires in September 2026, with 105 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: 105

Effluent violations: 88

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

Key contacts

Decision-makers at City Of Garrison.

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City Of Garrison: 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 April 11, 2025.

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