How much wastewater does City Of Leander WWTF treat?

City Of Leander WWTF treats an average of 2.54 MGD and is permitted for a design flow of 4.25 MGD.

What treatment technology does City Of Leander WWTF use?

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

What is the NPDES permit for City Of Leander WWTF?

The facility discharges under NPDES permit TX0092151, currently effective, expiring May 2031.

Is City Of Leander WWTF in compliance?

Discharge monitoring reports show 53 violations at City Of Leander WWTF in the last three years, 25 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of Leander WWTF and how do I contact them?

City Of Leander WWTF is a publicly owned treatment works in Leander, Texas. Klarifi lists 11 verified decision-maker contacts for this facility, available with a free trial.

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City Of Leander WWTF

Leander, TX · Williamson County · Publicly Owned Treatment Works

Average flow: 2.54 MGD

Design flow: 4.25 MGD

NPDES permit: TX0092151; Effective

Permit expires: May 2031

Population served: 12,733; CWNS 2022

City Of Leander WWTF is a publicly owned wastewater treatment works in Leander, Williamson County, Texas treating an average of 2.54 million gallons per day against a permitted design capacity of 4.25 MGD, serving about 12,733 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0092151 (effective), which expires in May 2031, with 53 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: 53

Effluent violations: 25

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

Key contacts

11 verified contacts for City Of Leander WWTF, with validated emails and direct phone numbers.

Unlock 11 verified contacts (8 more than shown)

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

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City Of Leander 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 January 29, 2025.

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