Public water system · NM3507029
ActiveRanchos De Taos Mdwca
At a glance
Ranchos De Taos Mdwca (PWSID NM3507029) is an active community water system in Taos County, New Mexico. It reports serving 750 people through 236 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
750
Service connections
236
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ranchos De Taos Mdwca compare with other water systems in Taos County?
By EPA's size categories, Ranchos De Taos Mdwca is a small system (501 to 3,300 people). Taos County has 94 active public water systems, and Ranchos De Taos Mdwca is the 6th-largest of them by population served. Its population served is about 182% above the county average of 266 people per system, and accounts for 3% of the 25,046 people reported by systems filed under the county. Across New Mexico, the 1,165 active systems average 1,885 people each. Nationally, the average active community water system reports serving 6,703 people, so Ranchos De Taos Mdwca is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Mexico has 645 active community water systems, 55% of the state's 1,165 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,009 New Mexico systems (87%) list groundwater as their primary source.
Who owns and regulates Ranchos De Taos Mdwca?
EPA lists Ranchos De Taos Mdwca as owned by a local government. The NM state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 36 of the 94 active systems in Taos County (38%) are also owned by a local government.
Does Ranchos De Taos Mdwca have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in October 2025. The violations listed here began between August 2024 and October 2025. By type: 10 required treatment not met, 1 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Groundwater Rule (9 of them). EPA lists 10 as unaddressed and 2 as resolved. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2024-08-28 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Ranchos De Taos Mdwca: frequently asked questions
Who runs Ranchos De Taos Mdwca?
Ranchos De Taos Mdwca (PWSID NM3507029) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Ranchos De Taos Mdwca serve?
Ranchos De Taos Mdwca reports serving 750 people through 236 service connections in Taos County, New Mexico.
Where does Ranchos De Taos Mdwca get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Ranchos De Taos Mdwca have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in October 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Ranchos De Taos Mdwca's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Ranchos De Taos Mdwca's water quality report?
As a community water system, Ranchos De Taos Mdwca must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Taos County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Taos Municipal Water System | Taos | 5,528 | Community | Groundwater |
| Questa Water System | Taos | 2,337 | Community | Groundwater |
| El Prado Water & Sanitation District | Taos | 1,076 | Community | Groundwater |
| Village of Taos Ski Valley | Taos | 1,025 | Community | Groundwater |
| Llano Quemado Mdwca | Taos | 800 | Community | Groundwater |
| Talpa Mdwca | Taos | 700 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Ranchos De Taos Mdwca, PWSID NM3507029, New Mexico”, https://aquacensus.com/water-systems/new-mexico/ranchos-de-taos-mdwca-nm3507029 (data as of October 1, 2026).