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Flatonia, TX Tap Water Quality 2026

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

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

Main Utility: City Of Flatonia PWSID: TX0750002 Updated: 2026 Q2
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2 violations currently open

Lead is 5.00 ppb, 33% of the action level. PFAS has never been sampled at this system.

D

Flatonia earns a D for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 5.00 ppb — 33% of the federal action level
PFAS never sampled at this system
21 violations since 2015, 9 health-based
2 violations currently open
Flatonia's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 5.00 ppb — 33% of the federal action level
✓ Lower lead than 7% of Texas utilities
Population Served
1306
~856 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
2
2 open of 21 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
33% of EPA action level
5.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 5.00 ppb, 33% 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 Unaddressed
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2026 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Archived
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Archived
Public Notice OTHER — — 2025 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Unaddressed
Public Notice OTHER — — 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2022 Resolved
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.012 MG/L 0.010 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.012 MG/L 0.010 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.012 MG/L 0.010 mg/L 2017 Resolved
Arsenic MCL EXCEEDANCE 0.012 MG/L 0.010 mg/L 2017 Resolved
Public Notice OTHER — — 2017 Resolved
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2017 Resolved
Arsenic MCL EXCEEDANCE 0.011 MG/L 0.010 mg/L 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 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 21 recorded since 2015 (9 health-based).

About the Main Water System

Utility City Of Flatonia
PWSID TX0750002
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,306
Service connections 856
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Flatonia tap water safe to drink? ▼
No federal limit is exceeded on record. 2 violation(s) remain open. Lead is 5.00 ppb, 33% of the action level.
Does Flatonia water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Flatonia? ▼
City Of Flatonia (PWSID TX0750002). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-02-05. No significant deficiencies were recorded.

What Should Flatonia Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
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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