States ›New Mexico ›San Miguel County ›Las Vegas

Las Vegas, NM Tap Water Quality 2026

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

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

Main Utility: Las Vegas (city Of) PWSID: NM3518025 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.10 ppb, 14% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

C

Las Vegas earns a C for water quality

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

Lead: 2.10 ppb — 14% of the federal action level
PFAS sampled, too few results to judge
79 violations since 2015, 48 health-based
No violations currently open
Las Vegas's lead level vs. all New Mexico community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.10 ppb — 14% of the federal action level
✓ Lower lead than 38% of New Mexico utilities
Population Served
13094
~6458 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
79 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
14% of EPA action level
2.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.10 ppb, 14% 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
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2024 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.95 RATIO TT 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.92 RATIO TT 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.92 RATIO TT 2024 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.83 RATIO TT 2024 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.89 RATIO TT 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.83 RATIO TT 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.84 RATIO TT 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.79 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.85 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.85 RATIO TT 2023 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.8 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.73 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.88 RATIO TT 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.76 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.76 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.73 RATIO TT 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2023 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2023 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.92 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2022 Resolved
Public Notice OTHER — — 2021 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2021 Resolved
Groundwater Rule OTHER — — 2021 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Public Notice OTHER — — 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
Groundwater Rule OTHER — — 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018–2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018–2019 Resolved
Groundwater Rule OTHER — — 2017 Resolved
Public Notice OTHER — — 2016 Resolved
Revised Total Coliform Rule OTHER — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 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

79 violations are on record since 2015, of which 48 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Las Vegas (City Of)
PWSID NM3518025
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 13,094
Service connections 6,458
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Las Vegas tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.10 ppb, 14% of the action level.
Does Las Vegas water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Las Vegas? ▼
Las Vegas (City Of) (PWSID NM3518025). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2024-12-05. Inspectors recorded 5 significant deficiencies.

What Should Las Vegas 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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