Zapata County Waterworks Sewer Division WWTP
Zapata, TX · Zapata County · Publicly Owned Treatment Works
- Average flow
- 1 MGD
- Design flow
- 0.8 MGD
- NPDES permit
- TX0070211
- Administratively continued
- Permit expires
- August 2026
- Population served
- 10,209
- CWNS 2022
Zapata County Waterworks Sewer Division WWTP is a publicly owned wastewater treatment works in Zapata, Zapata County, Texas treating an average of 1 million gallons per day against a permitted design capacity of 0.8 MGD, serving about 10,209 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit TX0070211 (administratively continued), which expires in August 2026, with 32 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
- 32
- Effluent violations
- 32
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Zapata County Waterworks Sewer Division WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Zapata County Waterworks Sewer Division WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Zapata · 12 mi away
0.0068 MGD
Laredo · 36 mi away
0.62 MGD
Roma · 38 mi away
1.34 MGD
Laredo · 41 mi away
16.98 MGD
Laredo · 44 mi away
16.21 MGD
Rio Grande City · 44 mi away
1.32 MGD
Laredo · 46 mi away
0.05 MGD
Laredo · 46 mi away
0.28 MGD
Zapata County Waterworks Sewer Division 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 26, 2025.