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Robstown, TX Tap Water Quality 2026

Water quality report for Robstown, TX — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Robstown's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Nueces County Wcid 3 PWSID: TX1780005 Updated: 2026 Q2
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2 violations currently open

Lead is 2.38 ppb, 16% of the action level. No PFAS was detected.

D

Robstown earns a D for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.38 ppb — 16% of the federal action level
PFAS tested, none detected
18 violations since 2015, 14 health-based
2 violations currently open
Robstown's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.38 ppb — 16% of the federal action level
✓ Lower lead than 27% of Texas utilities
Population Served
5563
~5166 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
2
2 open of 18 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
16% of EPA action level
2.38 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.38 ppb, 16% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Public Notice OTHER — — 2026 Resolved
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2026 Unaddressed
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2026 Unaddressed
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2026 Archived
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2021 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.096 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2015 Resolved
Consumer Confidence Rule OTHER — — 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

2 violations remain open, out of 18 recorded since 2015 (14 health-based).

About the Main Water System

Utility Nueces County Wcid 3
PWSID TX1780005
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 5,563
Service connections 5,166
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Robstown tap water safe to drink? ▼
No federal limit is exceeded on record. 2 violation(s) remain open. Lead is 2.38 ppb, 16% of the action level.
Does Robstown water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Robstown? ▼
Nueces County Wcid 3 (PWSID TX1780005), one of 2 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-07-10. No significant deficiencies were recorded.

What Should Robstown Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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