County · New Mexico
Taos County, New Mexico: drinking water records
This overview covers 18 ZIP codes and 42 community water systems in Taos County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Taos Municipal Water System NM3507529 | 5,528 | 240 | 0 | 0 | 5 ppb |
| Questa Water System NM3506829 | 2,337 | 0 | 0 | 5 | 2.6 ppb |
| El Prado Water & Sanitation District NM3515029 | 1,076 | 0 | 0 | 1 | 2 ppb |
| Ranchos de Taos Mdwca NM3507029 | 750 | 0 | 0 | 26 | 4.5 ppb |
| Red River Water System NM3507129 | 679 | 0 | 0 | 1 | 6 ppb |
| Penasco Mdwca NM3506729 | 549 | 0 | 0 | 2 | 9.2 ppb |
| Arroyo Seco Mdwca NM3505529 | 444 | 0 | 0 | 1 | 1 ppb |
| Union del Llano Mdwca NM3574429 | 400 | 0 | 0 | 6 | 1.8 ppb |
| Tres Piedras Mdwca NM3507729 | 350 | 0 | 0 | 1 | 1.7 ppb |
| Lower Des Montes Mdwca NM3574729 | 319 | 0 | 0 | 1 | 3.8 ppb |
| Costilla Mdwca NM3505929 | 244 | 0 | 0 | 5 | 2 ppb |
| Cerro Regional Mdwca/Swa NM3574229 | 232 | 0 | 0 | 3 | 6.2 ppb |
| Ojo Caliente Mdwca NM3506621 | 226 | 0 | 0 | 26 | 5 ppb |
| Upper Ranchitos Mdwcasw NM3575129 | 222 | 0 | 0 | 3 | 0 ppb |
| Duranes y Gavilan Mdwca NM3503221 | 215 | 0 | 0 | 2 | 9 ppb |
| Canon Mdwca NM3505629 | 200 | 0 | 0 | 5 | 1.4 ppb |
| Upper Arroyo Hondo Mdwca NM3507829 | 195 | 0 | 0 | 6 | 0.9 ppb |
| Lower Arroyo Hondo Mdwca NM3505429 | 180 | 0 | 0 | 1 | 14 ppb |
| Trampas Mdwca NM3507629 | 132 | 0 | 0 | 18 | 0.9 ppb |
| Rodarte Mdwca NM3507329 | 115 | 0 | 0 | 2 | 3.5 ppb |
| West Rim Mdwua NM3501529 | 113 | 0 | 0 | 1 | 0 ppb |
| Sanchez Mobile Home Park NM3500529 | 80 | 0 | 0 | 1 | 26 ppb |
| El Rancho MHP Taos NM3500629 | 72 | 0 | 0 | 1 | 0 ppb |
| Las Colonias MHP NM3510429 | 49 | 0 | 0 | 1 | 0 ppb |
| La Lama Mdwca NM3501129 | 45 | 0 | 0 | 2 | 5.4 ppb |
ZIP reports in Taos County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 87512.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.