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YOUNGSVILLE MDWCA

PWS ID: NM3503721 · YOUNGSVILLE, New Mexico 87064

YOUNGSVILLE MDWCA serves 45 people in YOUNGSVILLE, New Mexico using Groundwater water sources. It has 214 recorded EPA violations, including 44 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: YOUNGSVILLE MDWCA

YOUNGSVILLE MDWCA is a local-owned community water system that delivers drinking water to 45 residents in YOUNGSVILLE, New Mexico (Rio Arriba County) through 17 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 214 total violations for this system , of which 44 (21%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 123 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 96 violations (MR). 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. YOUNGSVILLE MDWCA's 214 violations sit above the New Mexico average. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%). 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
45
Total Violations
214
Health-Based Violations
44
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
17
County
Rio Arriba
School/Daycare
No
MCL Violations
14
Monitoring Violations
123
Treatment Tech Violations
30

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 96 2013
Groundwater Rule TT 30 2025
Consumer Confidence Rule Other 19 2013
Coliform (TCR) MCL 14 2008
Public Notice Other 11 2014
Lead and Copper Rule MR 7 2011
Nitrate MR 3 2000
Nitrate-Nitrite MR 3 2005
Cadmium MR 2 1981
Barium MR 2 1981
Fluoride MR 2 1981
Chromium MR 2 1981
Mercury MR 2 1981
Selenium MR 2 1981
Arsenic MR 2 1981
Groundwater Rule Other 2 2025

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 YOUNGSVILLE 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 NM3503721 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
2025 Groundwater Rule TT 30 SDWIS / NM3503721 / 0700
2025 Groundwater Rule Other 2 SDWIS / NM3503721 / 0700
2014 Public Notice Other 11 SDWIS / NM3503721 / 7500
2013 Coliform (TCR) MR 96 SDWIS / NM3503721 / 3100
2013 Consumer Confidence Rule Other 19 SDWIS / NM3503721 / 7000
2011 Lead and Copper Rule MR 7 SDWIS / NM3503721 / 5000
2008 Coliform (TCR) MCL 14 SDWIS / NM3503721 / 3100
2005 Nitrate-Nitrite MR 3 SDWIS / NM3503721 / 1038
2000 Nitrate MR 3 SDWIS / NM3503721 / 1040
1981 Cadmium MR 2 SDWIS / NM3503721 / 1015
1981 Barium MR 2 SDWIS / NM3503721 / 1010
1981 Fluoride MR 2 SDWIS / NM3503721 / 1025
1981 Chromium MR 2 SDWIS / NM3503721 / 1020
1981 Mercury MR 2 SDWIS / NM3503721 / 1035
1981 Selenium MR 2 SDWIS / NM3503721 / 1045

How YOUNGSVILLE MDWCA Compares

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

Metric YOUNGSVILLE MDWCA New Mexico avg Federal benchmark
Total violations 214 149 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 44 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 45 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is YOUNGSVILLE MDWCA water safe to drink? ▼
YOUNGSVILLE MDWCA (PWS ID: NM3503721) has 214 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 45 people using Groundwater sources.
How many people does YOUNGSVILLE MDWCA serve? ▼
YOUNGSVILLE MDWCA serves 45 people in YOUNGSVILLE, New Mexico. It is a Local-owned system using Groundwater water sources with 17 service connections.
What type of violations does YOUNGSVILLE MDWCA have? ▼
YOUNGSVILLE MDWCA has 214 total violations: 44 health-based violations (MCL exceedances or treatment failures), 123 monitoring/reporting violations, and 30 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in YOUNGSVILLE MDWCA water? ▼
No PFAS testing data is available for YOUNGSVILLE MDWCA under the EPA's UCMR5 monitoring program.
What water source does YOUNGSVILLE MDWCA use? ▼
YOUNGSVILLE 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.

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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.

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