MyCleanWater

Los Alamos, New Mexico Water Quality Report

Water quality data for 3 water systems serving 25,743 people.

45
Poor
out of 100

Water Source

3
Water Systems
26K
People Served
Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium33.8 No federal limit10.0 ug/L(EPA/USGS HBSL)
338%
Above guideline

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Compliance & Violations

Active Violations (36)

71

Jul 1, 2025

minor

71

Jul 1, 2025

minor

52

Jul 1, 2025

moderate

52

Jul 1, 2025

moderate

52

Jan 1, 2025

moderate

52

Jan 1, 2025

moderate

4G

Oct 17, 2024

minor

2E

Oct 17, 2024

critical

2E

Oct 17, 2024

critical

4G

Oct 17, 2024

minor

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

72

Oct 1, 2024

minor

71

Jul 1, 2024

minor

52

Jul 1, 2024

moderate

52

Jul 1, 2024

moderate

20

Jan 4, 2024

minor

20

Jan 4, 2024

minor

72

Oct 1, 2023

minor

71

Jul 1, 2023

minor

72

Oct 1, 2022

minor

71

Jul 1, 2022

minor

72

Oct 1, 2021

minor

71

Jul 1, 2021

minor

72

Oct 1, 2020

minor

71

Jul 1, 2020

minor

Resolved Violations (464)

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

45

Oct 11, 2024

critical

+ 459 more resolved violations

Frequently Asked Questions

Is Los Alamos tap water safe to drink?

Los Alamos's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Los Alamos tap water?

1 contaminants have been detected in Los Alamos's water supply across 3 water systems. See the full contaminant table above for details.

How can I improve my water quality in Los Alamos?

Install a water filter rated for the specific contaminants found in Los Alamos's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.

Does Los Alamos have any water quality violations?

Yes, Los Alamos currently has 50 active violations. See the violations section above for details.