County · New Mexico
Rio Arriba County, New Mexico: drinking water records
This overview covers 30 ZIP codes and 45 community water systems in Rio Arriba 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 |
|---|---|---|---|---|---|
| Espanola Water System NM3501921 | 12,012 | 180 | 0 | 3 | 0 ppb |
| La Madera Mdwca NM3502121 | 124 | 60 | 0 | 1 | 3.7 ppb |
| Jicarilla Dulce 063500006 | 3,064 | 0 | 0 | 12 | 2 ppb |
| Santa Clara Pueblo 063500166 | 2,500 | 0 | 0 | 1 | 1.7 ppb |
| Chama Water System NM3501021 | 1,573 | 0 | 0 | 7 | 0 ppb |
| Agua Sana Wua NM3502421 | 1,514 | 0 | 0 | 15 | 0 ppb |
| Greater Chimayo Mdwca NM3502426 | 1,050 | 0 | 0 | 2 | 2.3 ppb |
| Alcalde Mdwca NM3535021 | 927 | 0 | 0 | 21 | 0.6 ppb |
| Chamita Mdwca NM3500121 | 902 | 0 | 0 | 5 | 0 ppb |
| Truchas Mdwca NM3503421 | 629 | 0 | 0 | 12 | 2.2 ppb |
| Velarde Mdwca NM3529421 | 543 | 0 | 0 | 5 | 4.1 ppb |
| Dixon Mdwca NM3501421 | 500 | 0 | 0 | 1 | 1.5 ppb |
| Tierra Amarilla Mdwca NM3503321 | 470 | 0 | 0 | 5 | 2.8 ppb |
| Abiquiu Mdwca NM3500221 | 420 | 0 | 0 | 12 | 0.5 ppb |
| Cebolla Mdwca NM3500921 | 350 | 0 | 0 | 12 | 0.6 ppb |
| Cordova Mdwca NM3501221 | 325 | 0 | 0 | 11 | 3.7 ppb |
| El Rito Canyon Mdwca NM3536221 | 300 | 0 | 0 | 2 | 0.9 ppb |
| Ensenada Mdwca NM3501821 | 300 | 0 | 0 | 6 | 1.1 ppb |
| Coronado High School NM3592121 | 263 | 0 | 0 | 9 | 3.8 ppb |
| Los Ojos Mdwca NM3502921 | 237 | 0 | 0 | 12 | 2.8 ppb |
| Lumberton Mdwca NM3502721 | 223 | 0 | 0 | 30 | 2 ppb |
| Capulin Mdwca NM3500821 | 215 | 0 | 0 | 15 | 0 ppb |
| Valley Estates Water & Sewer Association NM3503621 | 194 | 0 | 0 | 10 | 0.5 ppb |
| Lybrook Mdwca NM3533021 | 175 | 0 | 0 | 7 | 8 ppb |
| Rio Embudo Mdwca NM3500721 | 159 | 0 | 0 | 1 | 3.7 ppb |
ZIP reports in Rio Arriba 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: 87554.
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.