How much wastewater does City Of Hillsboro WWTP treat?

City Of Hillsboro WWTP treats an average of 1.1 MGD and is permitted for a design flow of 1.81 MGD.

What is the NPDES permit for City Of Hillsboro WWTP?

The facility discharges under NPDES permit TX0023108, currently effective, expiring February 2031.

Is City Of Hillsboro WWTP in compliance?

Discharge monitoring reports show 293 violations at City Of Hillsboro WWTP in the last three years, 44 of them effluent limit exceedances. The full history is available in Klarifi.

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

City Of Hillsboro WWTP is a publicly owned treatment works in Hillsboro, Texas. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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City Of Hillsboro WWTP

Q: What treatment technology does City Of Hillsboro WWTP use?

Klarifi has identified uncovered lagoons, carrousels / oxidation ditches at the Hillsboro facility.

Hillsboro, TX · Hill County · Publicly Owned Treatment Works

Average flow: 1.1 MGD

Design flow: 1.81 MGD

NPDES permit: TX0023108; Effective

Permit expires: February 2031

Population served: 9,492; CWNS 2022

City Of Hillsboro WWTP is a publicly owned wastewater treatment works in Hillsboro, Hill County, Texas treating an average of 1.1 million gallons per day against a permitted design capacity of 1.81 MGD, serving about 9,492 residents. Treatment on site includes uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit TX0023108 (effective), which expires in February 2031, with 293 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Uncovered lagoons

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Carrousels / oxidation ditches

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Compliance snapshot (last 3 years)

Total violations: 293

Effluent violations: 44

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

Key contacts

1 verified contact for City Of Hillsboro WWTP, with validated emails and direct phone numbers.

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

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City Of Hillsboro 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 March 16, 2025.

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