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Los Cerrillos, NM Tap Water Quality 2026

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

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

Main Utility: El Vadito De Los Cerrillos Water Assoc PWSID: NM3504126 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 11.00 ppb, 73% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Los Cerrillos earns a B for water quality

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

Lead: 11.00 ppb — 73% of the federal action level
PFAS never sampled at this system
21 violations since 2015, 8 health-based
No violations currently open
Los Cerrillos's lead level vs. all New Mexico community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 11.00 ppb — 73% of the federal action level
✓ Lower lead than 5% of New Mexico utilities
Population Served
244
~170 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
21 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
73% of EPA action level
11.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 11.00 ppb, 73% 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
Consumer Confidence Rule OTHER — — 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019–2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Public Notice OTHER — — 2019 Resolved
Revised Total Coliform Rule TREATMENT TECHNIQUE — — 2018 Resolved
Revised Total Coliform Rule MCL EXCEEDANCE — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017–2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017–2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Archived
Public Notice OTHER — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Archived
Groundwater Rule TREATMENT TECHNIQUE — — 2016 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2016 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2016 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2015 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2015 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015–2016 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

21 violations are on record since 2015, of which 8 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility El Vadito De Los Cerrillos Water Assoc
PWSID NM3504126
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 244
Service connections 170
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Los Cerrillos tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 11.00 ppb, 73% of the action level.
Does Los Cerrillos 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 Los Cerrillos? ▼
El Vadito De Los Cerrillos Water Assoc (PWSID NM3504126). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-04-24. No significant deficiencies were recorded.

What Should Los Cerrillos 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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