City Of Dilley WWTP
Dilley, TX · Frio County · Publicly Owned Treatment Works
- Average flow
- 0.63 MGD
- Design flow
- 0.8 MGD
- NPDES permit
- TX0137936
- Effective
- Permit expires
- April 2028
- Population served
- —
- CWNS 2022
City Of Dilley WWTP is a publicly owned wastewater treatment works in Dilley, Frio County, Texas treating an average of 0.63 million gallons per day against a permitted design capacity of 0.8 MGD. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0137936 (effective), which expires in April 2028, with 37 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 37
- Effluent violations
- 37
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 Dilley WWTP.
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Nearby wastewater treatment plants in Texas
Dilley · 1 mi away
0.006 MGD
Dilley · 3 mi away
—
Pearsall · 15 mi away
0.99 MGD
Cotulla · 18 mi away
1.75 MGD
Big Wells · 27 mi away
—
Charlotte · 29 mi away
0.09 MGD
Devine · 37 mi away
0.49 MGD
Tilden · 39 mi away
0.06 MGD
City Of Dilley 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 27, 2025.