Water quality · New Mexico
Water quality in New Mexico
1 of the 3 New Mexico ZIPs matched to an EPA SDWIS community water system reports a health-based violation in the last 3 years. SDWIS reports the system serving the county, never an address-level test, and never private wells.
Last verified 2026-09-24 · methodology
Water quality by ZIP code in New Mexico
The largest community water system EPA lists for each ZIP's county, and its health-based violations in the last 3 years.
| ZIP | Largest system | Health-based violations |
|---|---|---|
| 87102AlbuquerqueBernalillo County | ALBUQUERQUE WATER SYSTEM | None |
| 87501Santa FeSanta Fe County | SANTA FE WATER SYSTEM (CITY OF) | 1 |
| 87544Los AlamosLos Alamos County | LOS ALAMOS MUNICIPAL WATER SYSTEM | None |
County-level figures from EPA SDWIS, joined to each ZIP by county. None of them is a measurement at a specific address.
What lands here
Pages show the largest community water system on record for the ZIP's county, its PWSID and population served, and its health-based and total violations in the last 3 years. Lead and copper sampling results are not shown; your utility's annual water quality report (CCR) has them.
Source & refresh
EPA SDWIS. Refreshed quarterly (federal mandate). Primary source →
New Mexico top concern
Radon, wildfire, water-supply scarcity
New Mexico has Zone 1 radon coverage statewide. Wildfire risk in northern + central forests; the 2022 Hermits Peak/Calf Canyon Fire was the largest in NM history. Water-supply scarcity drives compliance pressure on small rural EPA SDWIS systems.
See New Mexico state page for the full state-level rollup across all 12 dimensions.
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EPA Radon Zones — what 1, 2, and 3 mean and when you should test
EPA classifies every US county into Zone 1 (high), Zone 2 (moderate), or Zone 3 (low) for radon. Plain-English guide to the classifications and at-home testing.
EPA AQI categories explained — what 0–50 Good through 301–500 Hazardous mean
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Lead and Copper Rule 2024 — the federal lead-pipe inventory mandate
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