PFAS
MCL- cities with a PFAS sample above a limit
- 3
- highest PFOS detected
- 4.2 ng/L
- Dona Ana Mdwca4.2 ng/L
Dashed line: 4 ng/L federal MCL for PFOS (PFOA is also 4 ng/L).
Is New Mexico tap water safe to drink? It depends on the water system that serves you. Of 30 New Mexico city reports, 6 cities have a health-based violation on the federal record in the last 10 years; 3 had a PFAS sample above a 2024 EPA limit (not a violation). Search your city for its own records.
PurityMap does not give a statewide safe or unsafe verdict: New Mexico tap water comes from many separate public water systems, so the answer depends on the one that serves you. Of 30 New Mexico city reports, 6 cities have a health-based violation in the federal SDWIS record in the last 10 years, and none was above the 15 µg/L lead action level. 3 of 30 New Mexico city reports had a PFAS sample above a 2024 EPA limit. EPA's 2024 limits are judged on a yearly average, and water systems have until 2029 to meet them, so a single sample is not a violation. 22 of 30 have none of these on record, which is not the same as every contaminant being tested. Your city's report shows its own records, and plumbing inside a building can still change what reaches your tap.
3of 30 cities
City reports whose system had a PFAS sample above a 2024 EPA limit.
PFOS in New Mexico →21of 30 cities
90th-percentile lead above zero.
Lead across New Mexico →0of 30 cities
No city on record above 15 µg/L.
How lead is measured →The 20 city reports whose main water system serves the most people, each with that system and one fact from its record. Open a city for its full report.
3 New Mexico cities share the top place in the ranking. The largest of them by population served are Albuquerque, Portales and Socorro. Cities are ranked by the Purity Score of each one's main water system, computed only from contaminants measured in the published EPA record, so the ranking compares the records, not which city's water is safest. Each city report names the water system behind its score.
3 cities share a score of 100. They’re listed by population served, largest first; their order is not a ranking.
2 cities share a result of 5 µg/L. They’re listed by population served, largest first; their order is not a ranking.
Dashed line: 4 ng/L federal MCL for PFOS (PFOA is also 4 ng/L).
Dashed line: 15 µg/L action level, a treatment trigger.
Every New Mexico city report, A–Z. Use a letter to jump, or search by name.
Resolve your address to the one public water system that serves it.
Find my water →Plumbing inside a building can add lead and change what reaches your glass.
How to test →Only after a city report names a finding, match a treatment certified for it.
Treatment options →Get New Mexico updates
We'll email you when New Mexico records change, such as new PFAS or lead results.
Follow New Mexico's water →PurityMap does not give a statewide safe or unsafe verdict: New Mexico tap water comes from many separate public water systems, so the answer depends on the one that serves you. Of 30 New Mexico city reports, 6 cities have a health-based violation in the federal SDWIS record in the last 10 years, and none was above the 15 µg/L lead action level. 3 of 30 New Mexico city reports had a PFAS sample above a 2024 EPA limit. EPA's 2024 limits are judged on a yearly average, and water systems have until 2029 to meet them, so a single sample is not a violation. 22 of 30 have none of these on record, which is not the same as every contaminant being tested. Your city's report shows its own records, and plumbing inside a building can still change what reaches your tap.
3 New Mexico cities share the top place in the ranking. The largest of them by population served are Albuquerque, Portales and Socorro. Cities are ranked by the Purity Score of each one's main water system, computed only from contaminants measured in the published EPA record, so the ranking compares the records, not which city's water is safest. Each city report names the water system behind its score.
PurityMap ranks 30 cities in New Mexico by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Albuquerque's main water system: ALBUQUERQUE WATER SYSTEM · PWSID NM3510701 · Purity Score 100 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.
3 of 30 New Mexico city reports had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Alamogordo (PFOA 7.4 ng/L), Hobbs (PFOA 5.3 ng/L), Dona Ana Mdwca (PFOS 4.2 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 6.
Utilities report lead as a 90th-percentile result from home taps. 21 of 30 New Mexico cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
6 cities in New Mexico have a health-based violation in the federal SDWIS record within about the last ten years. Each city report lists the contaminant, year and whether it was resolved.