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States → New Mexico

Community Water System · PWS NM3507329

Rodarte Mdwca

Penasco, New Mexico 87553 - drinking water served from groundwater sources to 115 people, tracked in EPA SDWIS and UCMR5.

115
People served
146
EPA violations
30
Health-based
Untested
UCMR5 result

The verdict

EPA records 146 drinking-water violations at Rodarte Mdwca, 21% of them health-based - below the New Mexico per-system average.

146
Total EPA violations on record
21%
Health-based (MCL / treatment failure)
115
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Rodarte Mdwca

Rodarte Mdwca is a local-owned community water system that delivers drinking water to 115 residents in Penasco, New Mexico (Taos County) through 47 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 146 total violations for this system , of which 30 (21%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 88 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 Lead and Copper Rule, recorded in 64 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. Statewide, 70 of 72 UCMR5-tested systems have reported PFAS detections (97.2%).

Rodarte Mdwca's 146 violations sit below 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
115
Total Violations
146
Health-Based Violations
30
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
47
County
Taos
School/Daycare
No
MCL Violations
0
Monitoring Violations
88
Treatment Tech Violations
30

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 64 2024
Groundwater Rule TT 30 2024
Consumer Confidence Rule Other 10 2016
TTHM MR 8 2015
Total Haloacetic Acids (HAA5) MR 8 2015
Public Notice Other 6 2022
Coliform (TCR) MR 4 1994
Revised Total Coliform Rule Other 4 2016
Revised Total Coliform Rule MON 3 2016
Fluoride MR 1 2005

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 Rodarte 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 NM3507329 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 MR 64 SDWIS / NM3507329 / 5000
2024 Groundwater Rule TT 30 SDWIS / NM3507329 / 0700
2022 Public Notice Other 6 SDWIS / NM3507329 / 7500
2016 Consumer Confidence Rule Other 10 SDWIS / NM3507329 / 7000
2016 Revised Total Coliform Rule Other 4 SDWIS / NM3507329 / 8000
2016 Revised Total Coliform Rule MON 3 SDWIS / NM3507329 / 8000
2015 TTHM MR 8 SDWIS / NM3507329 / 2950
2015 Total Haloacetic Acids (HAA5) MR 8 SDWIS / NM3507329 / 2456
2005 Fluoride MR 1 SDWIS / NM3507329 / 1025
1994 Coliform (TCR) MR 4 SDWIS / NM3507329 / 3100

How Rodarte Mdwca Compares

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

Metric Rodarte Mdwca New Mexico avg Federal benchmark
Total violations 146 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 30 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 115 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 Rodarte Mdwca water safe to drink? ▼
Rodarte Mdwca (PWS ID: NM3507329) has 146 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 115 people using Groundwater sources.
How many people does Rodarte Mdwca serve? ▼
Rodarte Mdwca serves 115 people in Penasco, New Mexico. It is a Local-owned system using Groundwater water sources with 47 service connections.
What type of violations does Rodarte Mdwca have? ▼
Rodarte Mdwca has 146 total violations: 30 health-based violations (MCL exceedances or treatment failures), 88 monitoring/reporting violations, and 30 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Rodarte Mdwca water? ▼
No PFAS testing data is available for Rodarte Mdwca under the EPA's UCMR5 monitoring program.
What water source does Rodarte Mdwca use? ▼
Rodarte 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.