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States → New Mexico

Community Water System · PWS NM3500821

Capulin Mdwca

Gallina, New Mexico 87017 - drinking water served from groundwater sources to 215 people, tracked in EPA SDWIS and UCMR5.

215
People served
467
EPA violations
87
Health-based
Untested
UCMR5 result

The verdict

EPA records 467 drinking-water violations at Capulin Mdwca, 19% of them health-based - above the New Mexico per-system average.

467
Total EPA violations on record
19%
Health-based (MCL / treatment failure)
215
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Capulin Mdwca

Capulin Mdwca is a local-owned community water system that delivers drinking water to 215 residents in Gallina, New Mexico (Rio Arriba County) through 81 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 467 total violations for this system , of which 87 (19%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 287 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 Revised Total Coliform Rule, recorded in 109 violations (MON). 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%).

Capulin Mdwca's 467 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
215
Total Violations
467
Health-Based Violations
87
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
81
County
Rio Arriba
School/Daycare
No
MCL Violations
0
Monitoring Violations
287
Treatment Tech Violations
87

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 109 2019
Groundwater Rule TT 87 2023
Chlorine MR 66 2024
Lead and Copper Rule MR 59 2018
Consumer Confidence Rule Other 45 2021
Public Notice Other 36 2024
Total Haloacetic Acids (HAA5) MR 24 2018
TTHM MR 24 2018
Revised Total Coliform Rule Other 5 2016
Asbestos MR 4 2020
Groundwater Rule Other 4 2022
Fluoride MR 1 1981

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 Capulin 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 NM3500821 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 Chlorine MR 66 SDWIS / NM3500821 / 0999
2024 Public Notice Other 36 SDWIS / NM3500821 / 7500
2023 Groundwater Rule TT 87 SDWIS / NM3500821 / 0700
2022 Groundwater Rule Other 4 SDWIS / NM3500821 / 0700
2021 Consumer Confidence Rule Other 45 SDWIS / NM3500821 / 7000
2020 Asbestos MR 4 SDWIS / NM3500821 / 1094
2019 Revised Total Coliform Rule MON 109 SDWIS / NM3500821 / 8000
2018 Lead and Copper Rule MR 59 SDWIS / NM3500821 / 5000
2018 Total Haloacetic Acids (HAA5) MR 24 SDWIS / NM3500821 / 2456
2018 TTHM MR 24 SDWIS / NM3500821 / 2950
2016 Revised Total Coliform Rule Other 5 SDWIS / NM3500821 / 8000
1981 Fluoride MR 1 SDWIS / NM3500821 / 1025

How Capulin Mdwca Compares

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

Metric Capulin Mdwca New Mexico avg Federal benchmark
Total violations 467 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 87 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 215 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 Capulin Mdwca water safe to drink? ▼
Capulin Mdwca (PWS ID: NM3500821) has 467 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 215 people using Groundwater sources.
How many people does Capulin Mdwca serve? ▼
Capulin Mdwca serves 215 people in Gallina, New Mexico. It is a Local-owned system using Groundwater water sources with 81 service connections.
What type of violations does Capulin Mdwca have? ▼
Capulin Mdwca has 467 total violations: 87 health-based violations (MCL exceedances or treatment failures), 287 monitoring/reporting violations, and 87 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Capulin Mdwca water? ▼
No PFAS testing data is available for Capulin Mdwca under the EPA's UCMR5 monitoring program.
What water source does Capulin Mdwca use? ▼
Capulin 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.