How much wastewater does City Of Garland Rowlett Creek WWTF treat?

City Of Garland Rowlett Creek WWTF treats an average of 22.38 MGD and is permitted for a design flow of 24 MGD.

What treatment technology does City Of Garland Rowlett Creek WWTF use?

Klarifi has identified clarifiers, biogas silos at the Garland facility.

What is the NPDES permit for City Of Garland Rowlett Creek WWTF?

The facility discharges under NPDES permit TX0024686, currently effective, expiring October 2030.

Is City Of Garland Rowlett Creek WWTF in compliance?

Discharge monitoring reports show 6 violations at City Of Garland Rowlett Creek WWTF in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of Garland Rowlett Creek WWTF and how do I contact them?

City Of Garland Rowlett Creek WWTF is a publicly owned treatment works in Garland, Texas. Klarifi lists 28 verified decision-maker contacts for this facility, available with a free trial.

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City Of Garland Rowlett Creek WWTF

Garland, TX · Dallas County · Publicly Owned Treatment Works

Average flow: 22.38 MGD

Design flow: 24 MGD

NPDES permit: TX0024686; Effective

Permit expires: October 2030

Population served: 197,170; CWNS 2022

City Of Garland Rowlett Creek WWTF is a publicly owned wastewater treatment works in Garland, Dallas County, Texas treating an average of 22.38 million gallons per day against a permitted design capacity of 24 MGD, serving about 197,170 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit TX0024686 (effective), which expires in October 2030, with 6 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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Biogas silos

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 6

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

Key contacts

28 verified contacts for City Of Garland Rowlett Creek WWTF, with validated emails and direct phone numbers.

Unlock 28 verified contacts (25 more than shown)

Names, validated emails and direct phone numbers for decision-makers at City Of Garland Rowlett Creek WWTF, plus the full compliance history and discharge data.

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Floyd Branch Regional Wastewater Treatment Plant

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South Mesquite Regional Wastewater Treatment Plant

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Wilson Creek Regional Wastewater Treatment Plant

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City Of Dallas Central WWTP

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City Of Garland Rowlett Creek WWTF: 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 March 3, 2025.

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