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Tilden, TX Tap Water Quality 2026

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

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

Main Utility: Mcmullen County Tilden PWSID: TX1560002 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 14.40 ppb, 96% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Tilden earns a B for water quality

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

Lead: 14.40 ppb — 96% of the federal action level
PFAS never sampled at this system
39 violations since 2015, 1 health-based
No violations currently open
Tilden's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 14.40 ppb — 96% of the federal action level
✓ Lower lead than 0% of Texas utilities
Population Served
170
~204 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
39 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
96% of EPA action level
14.40 ppb
Action level: 15 ppb
The 90th-percentile lead result is 14.40 ppb, 96% 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
Lead and Copper Rule MONITORING AND REPORTING — TT 2026 Resolved
Public Notice OTHER — — 2026 Resolved
Public Notice OTHER — — 2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Resolved
Consumer Confidence Rule OTHER — — 2025 Resolved
Public Notice OTHER — — 2025 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2024 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2024 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2024 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2024 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2024 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2024 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2024 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2024 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2024 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2024 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2024 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2024 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Public Notice OTHER — — 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 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

39 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Mcmullen County Tilden
PWSID TX1560002
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 170
Service connections 204
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Tilden tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 14.40 ppb, 96% of the action level.
Does Tilden 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 Tilden? ▼
Mcmullen County Tilden (PWSID TX1560002). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2026-02-05. No significant deficiencies were recorded.

What Should Tilden 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
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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