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Community Water System · PWS NM3524030

Estancia Water System

Estancia, New Mexico 87016 - drinking water served from groundwater sources to 1,355 people, tracked in EPA SDWIS and UCMR5.

1,355
People served
167
EPA violations
80
Health-based
Untested
UCMR5 result

The verdict

EPA records 167 drinking-water violations at Estancia Water System, 48% of them health-based - above the New Mexico per-system average.

167
Total EPA violations on record
48%
Health-based (MCL / treatment failure)
1,355
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Estancia Water System

Estancia Water System is a local-owned community water system that delivers drinking water to 1,355 residents in Estancia, New Mexico (Torrance County) through 500 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 167 total violations for this system , of which 80 (48%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 51 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 Groundwater Rule, recorded in 65 violations (TT, health-based). 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%).

Estancia Water System's 167 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
1,355
Total Violations
167
Health-Based Violations
80
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
500
County
Torrance
School/Daycare
No
MCL Violations
12
Monitoring Violations
51
Treatment Tech Violations
68

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 65 2025
Consumer Confidence Rule Other 20 2024
Coliform (TCR) MR 19 2010
Revised Total Coliform Rule MON 15 2021
Coliform (TCR) MCL 12 2010
Chlorine MR 9 2021
Public Notice Other 7 2025
LEAD AND COPPER RULE REVISIONS TT 3 2024
TTHM MR 3 2014
LEAD AND COPPER RULE REVISIONS RPT 3 2024
Total Haloacetic Acids (HAA5) MR 3 2014
Diquat MR 2 2007

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 Estancia Water System.

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 NM3524030 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 65 SDWIS / NM3524030 / 0700
2025 Public Notice Other 7 SDWIS / NM3524030 / 7500
2024 Consumer Confidence Rule Other 20 SDWIS / NM3524030 / 7000
2024 LEAD AND COPPER RULE REVISIONS TT 3 SDWIS / NM3524030 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / NM3524030 / 5200
2021 Revised Total Coliform Rule MON 15 SDWIS / NM3524030 / 8000
2021 Chlorine MR 9 SDWIS / NM3524030 / 0999
2014 TTHM MR 3 SDWIS / NM3524030 / 2950
2014 Total Haloacetic Acids (HAA5) MR 3 SDWIS / NM3524030 / 2456
2010 Coliform (TCR) MR 19 SDWIS / NM3524030 / 3100
2010 Coliform (TCR) MCL 12 SDWIS / NM3524030 / 3100
2007 Diquat MR 2 SDWIS / NM3524030 / 2032

How Estancia Water System Compares

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

Metric Estancia Water System New Mexico avg Federal benchmark
Total violations 167 149 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 80 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 1,355 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 Estancia Water System water safe to drink? ▼
Estancia Water System (PWS ID: NM3524030) has 167 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,355 people using Groundwater sources.
How many people does Estancia Water System serve? ▼
Estancia Water System serves 1,355 people in Estancia, New Mexico. It is a Local-owned system using Groundwater water sources with 500 service connections.
What type of violations does Estancia Water System have? ▼
Estancia Water System has 167 total violations: 80 health-based violations (MCL exceedances or treatment failures), 51 monitoring/reporting violations, and 68 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Estancia Water System water? ▼
No PFAS testing data is available for Estancia Water System under the EPA's UCMR5 monitoring program.
What water source does Estancia Water System use? ▼
Estancia Water System 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.