County · New Mexico
Rio Arriba County, New Mexico: drinking water records
Explore EPA records for 43 community water systems across 30 ZIP codes in Rio Arriba County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 2 of the 43 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
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 in this county
All 43 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| 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 ppbbelow the action level |
| La Madera Mdwca NM3502121 | 124 | 60 | 0 | 1 | 3.7 ppbbelow the action level |
| Chama Water System NM3501021 | 1,573 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Agua Sana Wua NM3502421 | 1,514 | 0 | 0 | 15 | 0 ppbbelow the action level |
| Greater Chimayo Mdwca NM3502426 | 1,050 | 0 | 0 | 2 | 2.3 ppbbelow the action level |
| Alcalde Mdwca NM3535021 | 927 | 0 | 0 | 21 | 0.6 ppbbelow the action level |
| Chamita Mdwca NM3500121 | 902 | 0 | 0 | 5 | 0 ppbbelow the action level |
| Truchas Mdwca NM3503421 | 629 | 0 | 0 | 12 | 2.2 ppbbelow the action level |
| Velarde Mdwca NM3529421 | 543 | 0 | 0 | 5 | 4.1 ppbbelow the action level |
| Dixon Mdwca NM3501421 | 500 | 0 | 0 | 1 | 1.5 ppbbelow the action level |
| Tierra Amarilla Mdwca NM3503321 | 470 | 0 | 0 | 5 | 2.8 ppbbelow the action level |
| Abiquiu Mdwca NM3500221 | 420 | 0 | 0 | 12 | 0.5 ppbbelow the action level |
| Cebolla Mdwca NM3500921 | 350 | 0 | 0 | 12 | 0.6 ppbbelow the action level |
| Cordova Mdwca NM3501221 | 325 | 0 | 0 | 11 | 3.7 ppbbelow the action level |
| El Rito Canyon Mdwca NM3536221 | 300 | 0 | 0 | 2 | 0.9 ppbbelow the action level |
| Ensenada Mdwca NM3501821 | 300 | 0 | 0 | 6 | 1.1 ppbbelow the action level |
| Coronado High School NM3592121 | 263 | 0 | 0 | 9 | 3.8 ppbbelow the action level |
| Los Ojos Mdwca NM3502921 | 237 | 0 | 0 | 12 | 2.8 ppbbelow the action level |
| Lumberton Mdwca NM3502721 | 223 | 0 | 0 | 30 | 2 ppbbelow the action level |
| Capulin Mdwca NM3500821 | 215 | 0 | 0 | 15 | 0 ppbbelow the action level |
| Valley Estates Water & Sewer Association NM3503621 | 194 | 0 | 0 | 10 | 0.5 ppbbelow the action level |
| Lybrook Mdwca NM3533021 | 175 | 0 | 0 | 7 | 8 ppbbelow the action level |
| Rio Embudo Mdwca NM3500721 | 159 | 0 | 0 | 1 | 3.7 ppbbelow the action level |
| Canones Mdwca NM3500621 | 150 | 0 | 0 | 1 | 3.1 ppbbelow the action level |
| Apodaca Mdwca NM3502621 | 129 | 0 | 0 | 1 | 3.5 ppbbelow the action level |
| Gallina Water System NM3502021 | 99 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Barranco Mdwca NM3500321 | 97 | 0 | 0 | 5 | 1 ppbbelow the action level |
| Chama West Water Users Association NM3503821 | 90 | 0 | 0 | 3 | 0.6 ppbbelow the action level |
| Rutheron Mutual Water Association NM3502221 | 90 | 0 | 0 | 9 | 4.8 ppbbelow the action level |
| Lindrith Community Water Coop INC NM3502321 | 85 | 0 | 0 | 6 | 1.2 ppbbelow the action level |
| Vallecitos Mdwca NM3503521 | 84 | 0 | 0 | 23 | 47 ppbat or above the action level |
| Delancey Street Foundation NM3511021 | 83 | 0 | 0 | 21 | 1 ppbbelow the action level |
| Coyote Mdwca NM3501321 | 77 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Ancones Mdwwca NM3504121 | 60 | 0 | 0 | 3 | 5.5 ppbbelow the action level |
| Canon Plaza Mdwca NM3500421 | 60 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Youngsville Mdwca NM3503721 | 45 | 0 | 0 | 15 | 0 ppbbelow the action level |
| Jicarilla South Woodyard 063500007 | 33 | 0 | 0 | 1 | 5.8 ppbbelow the action level |
| La Asociacion de Agua de Los Brazos NM3566221 | 32 | 0 | 0 | 7 | 1.7 ppbbelow the action level |
| Christ in the Desert Monastery NM3501521 | 25 | 0 | 0 | 3 | 0.3 ppbbelow the action level |
| El Rito Regional Water & Waste Water Asn NM3504021 | 1,200 | 0 | 0 | 0 | 4.1 ppbbelow the action level |
| Canjilon Water System NM3500521 | 469 | 0 | 0 | 0 | 11 ppbbelow the action level |
| Ojo Sarco Mdwca NM3556821 | 225 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
| Pinon Ridge Wua NM3504321 | 29 | 0 | 0 | 0 | 0.4 ppbbelow the action level |
Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means
USGS · Monitoring stations
The water, more recently.
Available station readings in Rio Arriba County, New Mexico. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Rio Arriba County
30ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Abiquiu
- Blanco
- Canjilon
- Cañones
- Chama
- Chamita
- Chili
- Cordova
- Coyote
- Dixon
- Dulce
- El Rito
- Española
- Gallina
- La Madera
- Lindrith
- Los Luceros
- Los Ojos
- Medanales
- Ojo Caliente
- Ojo Sarco
- Regina
- Tierra Amarilla
- Truchas
- Velarde
View ZIP areas and understand coverage
- 87012Coyote
- 87017Gallina
- 87029Lindrith
- 87046Regina
- 87064Coyote
- 87412Blanco
- 87510Abiquiu
- 87511Los Luceros
- 87515Canjilon
- 87516Cañones
- 87518
- 87520Chama
- 87521Ojo Sarco
- 87523Cordova
- 87527Dixon
- 87528Dulce
- 87530El Rito
- 87532Española
- 87537Chili
- 87539La Madera
- 87548Medanales
- 87549Ojo Caliente
- 87551Los Ojos
- 87554
- 87566Chamita
- 87575Tierra Amarilla
- 87577
- 87578Truchas
- 87581
- 87582Velarde
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
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. Database prepared 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.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.