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Community Water System · PWS 063507011

Mescalero Whitetail

EPA Region 6 — Tribal Water Systems - drinking water served from groundwater sources to 25 people, tracked in EPA SDWIS and UCMR5.

25
People served
143
EPA violations
65
Health-based
Untested
UCMR5 result

The verdict

EPA records 143 drinking-water violations at Mescalero Whitetail, 45% of them health-based.

143
Total EPA violations on record
45%
Health-based (MCL / treatment failure)
25
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mescalero Whitetail

Mescalero Whitetail is a native american-owned community water system that delivers drinking water to 25 residents in EPA Region 6 — Tribal Water Systems through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 143 total violations for this system , of which 65 (45%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 73 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 66 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 6 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
25
Total Violations
143
Health-Based Violations
65
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
6
School/Daycare
No
MCL Violations
42
Monitoring Violations
73
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 66 2003
Coliform (TCR) MCL 42 2003
Groundwater Rule TT 19 2018
Consumer Confidence Rule Other 5 2004
Lead and Copper Rule MR 5 2017
Lead and Copper Rule TT 4 2001
TTHM MR 1 2008
Total Haloacetic Acids (HAA5) MR 1 2008

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 Mescalero Whitetail.

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 063507011 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 6 — Tribal Water Systems Drinking Water Authority

EPA Region 6 — Tribal Water Systems'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 06 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
2018 Groundwater Rule TT 19 SDWIS / 063507011 / 0700
2017 Lead and Copper Rule MR 5 SDWIS / 063507011 / 5000
2008 TTHM MR 1 SDWIS / 063507011 / 2950
2008 Total Haloacetic Acids (HAA5) MR 1 SDWIS / 063507011 / 2456
2004 Consumer Confidence Rule Other 5 SDWIS / 063507011 / 7000
2003 Coliform (TCR) MR 66 SDWIS / 063507011 / 3100
2003 Coliform (TCR) MCL 42 SDWIS / 063507011 / 3100
2001 Lead and Copper Rule TT 4 SDWIS / 063507011 / 5000

How Mescalero Whitetail Compares

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

Metric Mescalero Whitetail EPA Region 6 — Tribal Water Systems avg Federal benchmark
Total violations 143 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 65 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 25 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 6 — Tribal Water Systems.

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 Mescalero Whitetail water safe to drink?
Mescalero Whitetail (PWS ID: 063507011) has 143 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 25 people using Groundwater sources.
How many people does Mescalero Whitetail serve?
Mescalero Whitetail serves 25 people in EPA Region 6 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 6 service connections.
What type of violations does Mescalero Whitetail have?
Mescalero Whitetail has 143 total violations: 65 health-based violations (MCL exceedances or treatment failures), 73 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mescalero Whitetail water?
No PFAS testing data is available for Mescalero Whitetail under the EPA's UCMR5 monitoring program.
What water source does Mescalero Whitetail use?
Mescalero Whitetail 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.
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.