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Cundiyo, NM Tap Water Quality 2026

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

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

Main Utility: Cundiyo Mdwca PWSID: NM3504226 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.32 ppb, 2% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Cundiyo earns a B for water quality

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

Lead: 0.32 ppb — 2% of the federal action level
PFAS never sampled at this system
26 violations since 2015, 7 health-based
No violations currently open
Cundiyo's lead level vs. all New Mexico community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.32 ppb — 2% of the federal action level
✓ Lower lead than 100% of New Mexico utilities
Population Served
101
~25 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
26 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
2% of EPA action level
0.32 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.32 ppb, 2% 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 2025 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 28 PCI/L 15 pCi/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 19 PCI/L 15 pCi/L 2025 Archived
Consumer Confidence Rule OTHER — — 2019 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
Consumer Confidence Rule OTHER — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Public Notice OTHER — — 2017 Resolved
Public Notice OTHER — — 2017 Resolved
Public Notice OTHER — — 2017 Resolved
Public Notice OTHER — — 2017 Resolved
Public Notice OTHER — — 2017 Resolved
Consumer Confidence Rule OTHER — — 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Public Notice OTHER — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Revised Total Coliform Rule OTHER — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Public Notice OTHER — — 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 24 PCI/L 15 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 28 PCI/L 15 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 30 PCI/L 15 pCi/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 23 PCI/L 15 pCi/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18 PCI/L 15 pCi/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

26 violations are on record since 2015, of which 7 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Cundiyo Mdwca
PWSID NM3504226
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 101
Service connections 25
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Cundiyo tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.32 ppb, 2% of the action level.
Does Cundiyo 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 Cundiyo? ▼
Cundiyo Mdwca (PWSID NM3504226). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-10-22. No significant deficiencies were recorded.

What Should Cundiyo 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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