Hutto South WWTP
Hutto, TX · Williamson County · Publicly Owned Treatment Works
- Average flow
- 1.87 MGD
- Design flow
- 6 MGD
- NPDES permit
- TX0132926
- Administratively continued
- Permit expires
- June 2025
- Population served
- —
- CWNS 2022
Hutto South WWTP is a publicly owned wastewater treatment works in Hutto, Williamson County, Texas treating an average of 1.87 million gallons per day against a permitted design capacity of 6 MGD. Treatment on site includes uncovered lagoons. It discharges under NPDES permit TX0132926 (administratively continued), which expires in June 2025, with 1 recorded violation 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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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hutto South WWTP.
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Nearby wastewater treatment plants in Texas
Hutto · 3 mi away
0.89 MGD
Round Rock · 6 mi away
20.77 MGD
Pflugerville · 7 mi away
4.95 MGD
Round Rock · 9 mi away
1.41 MGD
Taylor · 9 mi away
3.5 MGD
Austin · 10 mi away
0.34 MGD
Manor · 11 mi away
0.11 MGD
Manor · 11 mi away
1.18 MGD
Hutto South 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.