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States → New Mexico

Community Water System · PWS NM3500625

Gonzales Ranch Mdwca

Ribera, New Mexico 87560 - drinking water served from groundwater sources to 114 people, tracked in EPA SDWIS and UCMR5.

114
People served
236
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 236 drinking-water violations at Gonzales Ranch Mdwca, 15% of them health-based - above the New Mexico per-system average.

236
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
114
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Gonzales Ranch Mdwca

Gonzales Ranch Mdwca is a local-owned community water system that delivers drinking water to 114 residents in Ribera, New Mexico (San Miguel County) through 49 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 236 total violations for this system , of which 36 (15%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 133 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 Chlorine, recorded in 74 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%).

Gonzales Ranch Mdwca's 236 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
114
Total Violations
236
Health-Based Violations
36
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
49
County
San Miguel
School/Daycare
No
MCL Violations
18
Monitoring Violations
133
Treatment Tech Violations
18

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 74 2018
Public Notice Other 30 2022
Consumer Confidence Rule Other 26 2022
Coliform (TCR) MCL 18 2008
Lead and Copper Rule MR 16 2022
Revised Total Coliform Rule MON 16 2021
Groundwater Rule TT 12 2021
Coliform (TCR) MR 11 2005
TTHM MR 8 2018
Total Haloacetic Acids (HAA5) MR 8 2018
Revised Total Coliform Rule Other 4 2016
Revised Total Coliform Rule TT 4 2019
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024

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 Gonzales Ranch 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 NM3500625 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 / NM3500625 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NM3500625 / 5200
2022 Public Notice Other 30 SDWIS / NM3500625 / 7500
2022 Consumer Confidence Rule Other 26 SDWIS / NM3500625 / 7000
2022 Lead and Copper Rule MR 16 SDWIS / NM3500625 / 5000
2021 Revised Total Coliform Rule MON 16 SDWIS / NM3500625 / 8000
2021 Groundwater Rule TT 12 SDWIS / NM3500625 / 0700
2019 Revised Total Coliform Rule TT 4 SDWIS / NM3500625 / 8000
2018 Chlorine MR 74 SDWIS / NM3500625 / 0999
2018 TTHM MR 8 SDWIS / NM3500625 / 2950
2018 Total Haloacetic Acids (HAA5) MR 8 SDWIS / NM3500625 / 2456
2016 Revised Total Coliform Rule Other 4 SDWIS / NM3500625 / 8000
2008 Coliform (TCR) MCL 18 SDWIS / NM3500625 / 3100
2005 Coliform (TCR) MR 11 SDWIS / NM3500625 / 3100

How Gonzales Ranch Mdwca Compares

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

Metric Gonzales Ranch Mdwca New Mexico avg Federal benchmark
Total violations 236 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 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 114 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 Gonzales Ranch Mdwca water safe to drink? ▼
Gonzales Ranch Mdwca (PWS ID: NM3500625) has 236 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 114 people using Groundwater sources.
How many people does Gonzales Ranch Mdwca serve? ▼
Gonzales Ranch Mdwca serves 114 people in Ribera, New Mexico. It is a Local-owned system using Groundwater water sources with 49 service connections.
What type of violations does Gonzales Ranch Mdwca have? ▼
Gonzales Ranch Mdwca has 236 total violations: 36 health-based violations (MCL exceedances or treatment failures), 133 monitoring/reporting violations, and 18 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Gonzales Ranch Mdwca water? ▼
No PFAS testing data is available for Gonzales Ranch Mdwca under the EPA's UCMR5 monitoring program.
What water source does Gonzales Ranch Mdwca use? ▼
Gonzales Ranch 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.