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Welch, TX Tap Water Quality 2026

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

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

Main Utility: Welch Wsc PWSID: TX0580013 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.46 ppb, 3% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Welch earns a B for water quality

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

Lead: 0.46 ppb — 3% of the federal action level
PFAS never sampled at this system
91 violations since 2015, 83 health-based
No violations currently open
Welch's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.46 ppb — 3% of the federal action level
✓ Lower lead than 99% of Texas utilities
Population Served
188
~105 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
91 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
3% of EPA action level
0.46 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.46 ppb, 3% 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
Arsenic MCL EXCEEDANCE 0.017 MG/L 0.010 mg/L 2026 Addressed
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2026 Archived
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2025 Archived
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2025 Archived
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2025 Archived
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2025 Archived
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2024 Archived
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2024 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2024 Archived
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2024 Archived
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2024 Archived
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2024 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2023 Archived
Public Notice OTHER — — 2023 Resolved
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2023 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2023 Archived
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2023 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2023 Archived
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2023 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2023 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2022 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2022 Archived
Nitrate MCL EXCEEDANCE 11 MG/L 10 mg/L 2022 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2022 Archived
Nitrate MCL EXCEEDANCE 12 MG/L 10 mg/L 2022 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2022 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2022 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2022 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2021 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2021 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2021 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2021 Archived
Nitrate MCL EXCEEDANCE 16 MG/L 10 mg/L 2021 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2021 Archived
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2021 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2021 Resolved
Nitrate MCL EXCEEDANCE 15 MG/L 10 mg/L 2020 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2020 Archived
Public Notice OTHER — — 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2020 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2020 Archived
Public Notice OTHER — — 2020 Resolved
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2020 Resolved
Arsenic MCL EXCEEDANCE 0.023 MG/L 0.010 mg/L 2020 Archived
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2020 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2020 Resolved
Nitrate MCL EXCEEDANCE 18 MG/L 10 mg/L 2019 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2019 Archived
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2019 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2019 Resolved
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2019 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2019 Archived
Nitrate MCL EXCEEDANCE 15 MG/L 10 mg/L 2019 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2019 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2018 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2018 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2018 Archived
Nitrate MCL EXCEEDANCE 15 MG/L 10 mg/L 2018 Resolved
Arsenic MCL EXCEEDANCE 0.022 MG/L 0.010 mg/L 2018 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2017 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2017 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2017 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2017 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2017 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2017 Archived
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2017 Archived
Nitrate MCL EXCEEDANCE 14 MG/L 10 mg/L 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2016 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2016 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2016 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2016 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2016 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2016 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2016 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2016 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2015 Resolved
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2015 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2015 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2015 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2015 Archived
Nitrate MCL EXCEEDANCE 13 MG/L 10 mg/L 2015 Resolved
Arsenic MCL EXCEEDANCE 0.021 MG/L 0.010 mg/L 2015 Archived
Nitrate MCL EXCEEDANCE 12 MG/L 10 mg/L 2015 Resolved
Arsenic MCL EXCEEDANCE 0.02 MG/L 0.010 mg/L 2015 Archived
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

91 violations are on record since 2015, of which 83 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Welch Wsc
PWSID TX0580013
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 188
Service connections 105
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Welch tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.46 ppb, 3% of the action level.
Does Welch 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 Welch? ▼
Welch Wsc (PWSID TX0580013). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2023-02-21. No significant deficiencies were recorded.

What Should Welch 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
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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