Public water system · NM3502221
ActiveRutheron Mutual Water Association
At a glance
Rutheron Mutual Water Association (PWSID NM3502221) is an active community water system in Rio Arriba County, New Mexico. It reports serving 90 people through 100 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
90
Service connections
100
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does Rutheron Mutual Water Association compare with other water systems in Rio Arriba County?
By EPA's size categories, Rutheron Mutual Water Association is a very small system (500 people or fewer). Rio Arriba County has 63 active public water systems. Its population served is well below the county average of 463 people per system, and accounts for 0.3% of the 29,192 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 Rutheron Mutual Water Association 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 10 New Mexico systems (0.9%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Rutheron Mutual Water Association?
EPA lists Rutheron Mutual Water Association 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. 41 of the 63 active systems in Rio Arriba County (65%) are also owned by a local government.
Does Rutheron Mutual Water Association have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2025. The violations listed here began between July 2024 and October 2025. By type: 6 public notice, recordkeeping or other, 4 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 6 as resolved, 4 as unaddressed and 2 as addressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2025-08-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-06-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2025-05-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-02-21 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Addressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Addressed |
| 2024-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Rutheron Mutual Water Association: frequently asked questions
Who runs Rutheron Mutual Water Association?
Rutheron Mutual Water Association (PWSID NM3502221) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Rutheron Mutual Water Association serve?
Rutheron Mutual Water Association reports serving 90 people through 100 service connections in Rio Arriba County, New Mexico.
Where does Rutheron Mutual Water Association get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Rutheron Mutual Water Association have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is 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 Rutheron Mutual Water Association'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, one is 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 Rutheron Mutual Water Association's water quality report?
As a community water system, Rutheron Mutual Water Association 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 Rio Arriba County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Espanola Water System | Rio Arriba | 12,012 | Community | Groundwater |
| Chama Water System | Rio Arriba | 1,573 | Community | Surface water |
| Agua Sana Wua | Rio Arriba | 1,514 | Community | Groundwater |
| El Rito Regional Water & Waste Water Asn | Rio Arriba | 1,200 | Community | Groundwater |
| Greater Chimayo Mdwca | Rio Arriba | 1,050 | Community | Groundwater |
| Alcalde Mdwca | Rio Arriba | 927 | 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, “Rutheron Mutual Water Association, PWSID NM3502221, New Mexico”, https://aquacensus.com/water-systems/new-mexico/rutheron-mutual-water-association-nm3502221 (data as of October 1, 2026).