How much wastewater does City Of Sweeny treat?

City Of Sweeny treats an average of 0.61 MGD and is permitted for a design flow of 0.98 MGD.

What treatment technology does City Of Sweeny use?

Klarifi has identified clarifiers, carrousels / oxidation ditches at the Sweeny facility.

What is the NPDES permit for City Of Sweeny?

The facility discharges under NPDES permit TX0024511, currently effective, expiring March 2030.

Is City Of Sweeny in compliance?

Discharge monitoring reports show 25 violations at City Of Sweeny in the last three years, 25 of them effluent limit exceedances. The full history is available in Klarifi.

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

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

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City Of Sweeny

Sweeny, TX · Brazoria County · Publicly Owned Treatment Works

Average flow: 0.61 MGD

Design flow: 0.98 MGD

NPDES permit: TX0024511; Effective

Permit expires: March 2030

Population served: 4,399; CWNS 2022

City Of Sweeny is a publicly owned wastewater treatment plant in Sweeny, Brazoria County, Texas treating an average of 0.61 million gallons per day against a permitted design capacity of 0.98 MGD, serving about 4,399 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0024511 (effective), which expires in March 2030, with 25 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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Carrousels / oxidation ditches

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Compliance snapshot (last 3 years)

Total violations: 25

Effluent violations: 25

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 Sweeny.

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Nearby wastewater treatment plants in Texas

City Of Brazoria

Brazoria · 6 mi away

1.24 MGD

City Of West Columbia

West Columbia · 6 mi away

2.98 MGD

Van Vleck WWTP

Van Vleck · 13 mi away

0.13 MGD

Dyson Campbell Water Reclamation Center

Lake Jackson · 14 mi away

—

Oyster Creek WWTP

Angleton · 15 mi away

3.31 MGD

City Of Freeport

Freeport · 17 mi away

0.07 MGD

Clute-Richwood WWTP

Clute · 18 mi away

8.21 MGD

City Of Bay City WWTP

Bay City · 18 mi away

2.91 MGD

City Of Sweeny: 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 May 29, 2025.

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