How much wastewater does City Of Willis WWTP treat?

City Of Willis WWTP treats an average of 1.53 MGD and is permitted for a design flow of 0.99 MGD.

What treatment technology does City Of Willis WWTP use?

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

What is the NPDES permit for City Of Willis WWTP?

The facility discharges under NPDES permit TX0068845, currently effective, expiring May 2029.

Is City Of Willis WWTP in compliance?

Discharge monitoring reports show 2 violations at City Of Willis WWTP in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of Willis WWTP and how do I contact them?

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

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City Of Willis WWTP

Willis, TX · Montgomery County · Publicly Owned Treatment Works

Average flow: 1.53 MGD

Design flow: 0.99 MGD

NPDES permit: TX0068845; Effective

Permit expires: May 2029

Population served: 4,653; CWNS 2022

City Of Willis WWTP is a publicly owned wastewater treatment works in Willis, Montgomery County, Texas treating an average of 1.53 million gallons per day against a permitted design capacity of 0.99 MGD, serving about 4,653 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0068845 (effective), which expires in May 2029, with 2 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: 2

Effluent violations: 2

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 Willis WWTP.

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Nearby wastewater treatment plants in Texas

Panorama Village Wastewater Treatment Facility

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Texas National Mud

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Far Hills Utility District Wwt

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Montgomery County Ud 2 WWTP

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Lake Conroe Hills Mud WWTF

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Stonebrooke Sections 1 And 2

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Point Aquarius Mud WWTP

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Corinthian Point Mud 2 - WWTP

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0.11 MGD

City Of Willis WWTP: 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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