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Dublin, TX Tap Water Quality 2026

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

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

Main Utility: City Of Dublin PWSID: TX0720001 Updated: 2026 Q2
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PFAS above the federal limit

Lead is 3.99 ppb, 27% of the action level and no violations are open. However, PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 1.08 times the limit.

C

Dublin earns a C for water quality

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

Lead: 3.99 ppb — 27% of the federal action level
PFAS above the federal limit at 1 of 1 sampling points
30 violations since 2015, 9 health-based
No violations currently open
Dublin's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 3.99 ppb — 27% of the federal action level
✓ Lower lead than 11% of Texas utilities
Population Served
3241
~1711 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
30 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
27% of EPA action level
3.99 ppb
Action level: 15 ppb
The 90th-percentile lead result is 3.99 ppb, 27% 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
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Public Notice OTHER — — 2025 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.108 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.101 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.101 MG/L 0.080 mg/L 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2023 Resolved
Public Notice OTHER — — 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Consumer Confidence Rule OTHER — — 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Public Notice OTHER — — 2016 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2015 Resolved
Public Notice OTHER — — 2015 Resolved
Public Notice OTHER — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2015 Resolved
Public Notice OTHER — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.094 MG/L 0.080 mg/L 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

30 violations are on record since 2015, of which 9 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Dublin
PWSID TX0720001
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 3,241
Service connections 1,711
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Dublin tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 1 of 1 sampling points. No violations are currently open. Lead is 3.99 ppb, 27% of the action level.
Does Dublin water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 1.08 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Dublin? ▼
City Of Dublin (PWSID TX0720001). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2024-12-05. No significant deficiencies were recorded.

What Should Dublin Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
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
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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