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Buchanan Dam, TX Tap Water Quality 2026

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

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

Main Utility: Lake Buchanan PWSID: TX1500037 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.70 ppb, 11% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Buchanan Dam earns a B for water quality

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

Lead: 1.70 ppb — 11% of the federal action level
PFAS never sampled at this system
11 violations since 2015, 6 health-based
No violations currently open
Buchanan Dam's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.70 ppb — 11% of the federal action level
✓ Lower lead than 47% of Texas utilities
Population Served
943
~828 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
11 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
11% of EPA action level
1.70 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.70 ppb, 11% 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
Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.104 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.071 MG/L 0.060 mg/L 2019 Resolved
Public Notice OTHER — — 2019 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.063 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2019 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

11 violations are on record since 2015, of which 6 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lake Buchanan
PWSID TX1500037
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 943
Service connections 828
Systems serving this area 5
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Buchanan Dam tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.70 ppb, 11% of the action level.
Does Buchanan Dam 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 Buchanan Dam? ▼
Lake Buchanan (PWSID TX1500037), one of 5 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 2024-05-08. No significant deficiencies were recorded.

What Should Buchanan Dam 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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