PlainWater
States → New Mexico

Community Water System · PWS NM3518925

San Miguel del Vado Mdwca

Ribera, New Mexico 87560 - drinking water served from groundwater sources to 79 people, tracked in EPA SDWIS and UCMR5.

79
People served
224
EPA violations
152
Health-based
Untested
UCMR5 result

The verdict

EPA records 224 drinking-water violations at San Miguel del Vado Mdwca, 68% of them health-based - above the New Mexico per-system average.

224
Total EPA violations on record
68%
Health-based (MCL / treatment failure)
79
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: San Miguel del Vado Mdwca

San Miguel del Vado Mdwca is a local-owned community water system that delivers drinking water to 79 residents in Ribera, New Mexico (San Miguel County) through 34 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 224 total violations for this system , of which 152 (68%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 2 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Fluoride, recorded in 143 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Mexico, EPA tracks 1,037 public water systems serving 2,027,497 people, with 154,522 cumulative violations and 38,650 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 149 violations. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%).

San Miguel del Vado Mdwca's 224 violations sit above the New Mexico average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
79
Total Violations
224
Health-Based Violations
152
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
34
County
San Miguel
School/Daycare
No
MCL Violations
148
Monitoring Violations
2
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Fluoride MCL 143 2015
Public Notice Other 42 2019
Consumer Confidence Rule Other 21 2011
Coliform (TCR) MCL 5 2014
Fluoride MR 2 2005
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024
Groundwater Rule TT 2 2011

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for San Miguel del Vado Mdwca.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NM3518925 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Mexico Drinking Water Authority

New Mexico's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find NM regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / NM3518925 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NM3518925 / 5200
2019 Public Notice Other 42 SDWIS / NM3518925 / 7500
2015 Fluoride MCL 143 SDWIS / NM3518925 / 1025
2014 Coliform (TCR) MCL 5 SDWIS / NM3518925 / 3100
2011 Consumer Confidence Rule Other 21 SDWIS / NM3518925 / 7000
2011 Groundwater Rule TT 2 SDWIS / NM3518925 / 0700
2005 Fluoride MR 2 SDWIS / NM3518925 / 1025

How San Miguel del Vado Mdwca Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric San Miguel del Vado Mdwca New Mexico avg Federal benchmark
Total violations 224 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 152 37.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 97.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 79 1,955 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,037 regulated public water systems in New Mexico.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is San Miguel del Vado Mdwca water safe to drink? ▼
San Miguel del Vado Mdwca (PWS ID: NM3518925) has 224 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 79 people using Groundwater sources.
How many people does San Miguel del Vado Mdwca serve? ▼
San Miguel del Vado Mdwca serves 79 people in Ribera, New Mexico. It is a Local-owned system using Groundwater water sources with 34 service connections.
What type of violations does San Miguel del Vado Mdwca have? ▼
San Miguel del Vado Mdwca has 224 total violations: 152 health-based violations (MCL exceedances or treatment failures), 2 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in San Miguel del Vado Mdwca water? ▼
No PFAS testing data is available for San Miguel del Vado Mdwca under the EPA's UCMR5 monitoring program.
What water source does San Miguel del Vado Mdwca use? ▼
San Miguel del Vado Mdwca uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.