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Acomita Lake, NM Tap Water Quality 2026

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

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

Main Utility: Acoma Main PWSID: 063501001 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.80 ppb, 5% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Acomita Lake earns a C for water quality

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

Lead: 0.80 ppb — 5% of the federal action level
PFAS never sampled at this system
36 violations since 2015, 4 health-based
No violations currently open
Acomita Lake's lead level vs. all New Mexico community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.80 ppb — 5% of the federal action level
✓ Lower lead than 87% of New Mexico utilities
Population Served
~741 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
36 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
5% of EPA action level
0.80 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.80 ppb, 5% 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
Revised Total Coliform Rule MONITORING FAILURE — — 2025 Archived
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17 PCI/L 15 pCi/L 2025 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2023 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2023 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2023 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2020 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2020 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019–2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019–2020 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17 PCI/L 15 pCi/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16 PCI/L 15 pCi/L 2018 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2018 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2018 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2018 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2018 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2018 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2018 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2018 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2018 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2018 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
Nickel MONITORING AND REPORTING — — 2018 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2018 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2018 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2017 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

36 violations are on record since 2015, of which 4 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Acoma Main
PWSID 063501001
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served
Service connections 741
Systems serving this area 1
Regulator US EPA (tribal primacy)
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Acomita Lake tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.80 ppb, 5% of the action level.
Does Acomita Lake 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 Acomita Lake? ▼
Acoma Main (PWSID 063501001). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-10-16. Inspectors recorded 4 significant deficiencies.

What Should Acomita Lake 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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