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States → New Mexico

Community Water System · PWS NM3504826

Madrid Water

Cerrillos, New Mexico 87010 - drinking water served from groundwater sources to 315 people, tracked in EPA SDWIS and UCMR5.

315
People served
166
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 166 drinking-water violations at Madrid Water, 4% of them health-based - above the New Mexico per-system average.

166
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
315
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Madrid Water

Madrid Water is a local-owned community water system that delivers drinking water to 315 residents in Cerrillos, New Mexico (Santa Fe County) through 137 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 6 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 114 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 60 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%).

Madrid Water's 166 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
315
Total Violations
166
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
137
County
Santa Fe
School/Daycare
No
MCL Violations
6
Monitoring Violations
114
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 60 2021
Public Notice Other 20 2022
Consumer Confidence Rule Other 19 2024
TTHM MR 15 2019
Total Haloacetic Acids (HAA5) MR 15 2019
Coliform (TCR) MR 10 1994
Lead and Copper Rule MR 8 2016
Coliform (TCR) MCL 6 2000
Chlorine MR 6 2021

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 Madrid Water.

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 NM3504826 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 Consumer Confidence Rule Other 19 SDWIS / NM3504826 / 7000
2022 Public Notice Other 20 SDWIS / NM3504826 / 7500
2021 Revised Total Coliform Rule MON 60 SDWIS / NM3504826 / 8000
2021 Chlorine MR 6 SDWIS / NM3504826 / 0999
2019 TTHM MR 15 SDWIS / NM3504826 / 2950
2019 Total Haloacetic Acids (HAA5) MR 15 SDWIS / NM3504826 / 2456
2016 Lead and Copper Rule MR 8 SDWIS / NM3504826 / 5000
2000 Coliform (TCR) MCL 6 SDWIS / NM3504826 / 3100
1994 Coliform (TCR) MR 10 SDWIS / NM3504826 / 3100

How Madrid Water Compares

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

Metric Madrid Water New Mexico avg Federal benchmark
Total violations 166 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 315 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 Madrid Water water safe to drink? ▼
Madrid Water (PWS ID: NM3504826) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 315 people using Groundwater sources.
How many people does Madrid Water serve? ▼
Madrid Water serves 315 people in Cerrillos, New Mexico. It is a Local-owned system using Groundwater water sources with 137 service connections.
What type of violations does Madrid Water have? ▼
Madrid Water has 166 total violations: 6 health-based violations (MCL exceedances or treatment failures), 114 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Madrid Water water? ▼
No PFAS testing data is available for Madrid Water under the EPA's UCMR5 monitoring program.
What water source does Madrid Water use? ▼
Madrid Water 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.