Chula Vista WWTF
4000F S Of Intx Fm 1433 And Fm 65, Crystal City, TX 78839 · Zavala County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.05 MGD
- NPDES permit
- TX0117986
- Effective
- Permit expires
- January 2031
- Population served
- 220
- CWNS 2022
Chula Vista WWTF is a publicly owned wastewater treatment works in Crystal City, Zavala County, Texas treating an average of 0.04 million gallons per day against a permitted design capacity of 0.05 MGD, serving about 220 residents. It discharges under NPDES permit TX0117986 (effective), which expires in January 2031, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Chula Vista WWTF.
Treatment structure data not yet analyzed for this facility.
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 Chula Vista WWTF.
No verified contacts on file yet
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Nearby wastewater treatment plants in Texas
Crystal City · 2 mi away
0.9 MGD
Carrizo Springs · 10 mi away
0.74 MGD
Asherton · 14 mi away
0.14 MGD
Big Wells · 16 mi away
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Uvalde · 36 mi away
0.57 MGD
Eagle Pass · 37 mi away
0.92 MGD
Dilley · 38 mi away
0.52 MGD
Eagle Pass · 39 mi away
4.75 MGD
Chula Vista 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 October 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms