Dunlap WWTF
1Mi E Fm 725 & 3.1Mi SE Intx, Seguin, TX 78155 · Guadalupe County · Publicly Owned Treatment Works
- Average flow
- 1.62 MGD
- Design flow
- —
- NPDES permit
- TX0025208
- Effective
- Permit expires
- December 2029
- Population served
- 14,297
- CWNS 2022
Dunlap WWTF is a publicly owned wastewater treatment works in Seguin, Guadalupe County, Texas treating an average of 1.62 million gallons per day, serving about 14,297 residents. It discharges under NPDES permit TX0025208 (effective), which expires in December 2029, with 18 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Dunlap WWTF.
Available with a free Klarifi account
See the full treatment train at Dunlap WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- 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 Dunlap WWTF.
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Nearby wastewater treatment plants in Texas
New Braunfels · 1 mi away
3.38 MGD
New Braunfels · 2 mi away
4.62 MGD
New Braunfels · 2 mi away
3.2 MGD
New Braunfels · 5 mi away
2.12 MGD
City Of New Braunfels · 7 mi away
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Marion · 8 mi away
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Seguin · 10 mi away
3.68 MGD
Seguin · 10 mi away
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Dunlap 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 October 26, 2026; facility record last updated March 14, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms