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States → EPA Region 6 — Tribal Water Systems

Community Water System · PWS 063507009

Mescalero Eight Canyon

EPA Region 6 — Tribal Water Systems - drinking water served from groundwater sources to 333 people, tracked in EPA SDWIS and UCMR5.

333
People served
57
EPA violations
21
Health-based
Untested
UCMR5 result

The verdict

EPA records 57 drinking-water violations at Mescalero Eight Canyon, 37% of them health-based.

57
Total EPA violations on record
37%
Health-based (MCL / treatment failure)
333
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mescalero Eight Canyon

Mescalero Eight Canyon is a native american-owned community water system that delivers drinking water to 333 residents in EPA Region 6 — Tribal Water Systems through 93 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 57 total violations for this system , of which 21 (37%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 35 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Groundwater Rule, recorded in 16 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.

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
333
Total Violations
57
Health-Based Violations
21
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
93
School/Daycare
No
MCL Violations
2
Monitoring Violations
35
Treatment Tech Violations
19

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 16 2016
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 3 2010
Nitrate-Nitrite MR 3 2013
Coliform (TCR) MCL 2 2002
Coliform (TCR) MR 2 2002
BHC-GAMMA MR 1 2009
Methoxychlor MR 1 2009
Toxaphene MR 1 2009
Dalapon MR 1 2009
OXAMYL MR 1 2009
Simazine MR 1 2009
Dinoseb MR 1 2009
Heptachlor MR 1 2009
Benzo(a)pyrene MR 1 2009
ETHYLENE DIBROMIDE MR 1 2009
Chlordane MR 1 2009
TTHM MR 1 2008
Total Haloacetic Acids (HAA5) MR 1 2008
Pentachlorophenol MR 1 2009
Endrin MR 1 2009
LASSO MR 1 2009
Di(2-ethylhexyl) phthalate MR 1 2009
Hexachlorocyclopentadiene MR 1 2009
Diquat MR 1 2009
Picloram MR 1 2009
Glyphosate MR 1 2009
2,4,5-TP MR 1 2009
Consumer Confidence Rule Other 1 2004
Endothall MR 1 2009
2,4-D MR 1 2009

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 Eight Canyon.

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 063507009 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
2016 Groundwater Rule TT 16 SDWIS / 063507009 / 0700
2013 Nitrate-Nitrite MR 3 SDWIS / 063507009 / 1038
2010 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 3 SDWIS / 063507009 / 0400
2009 BHC-GAMMA MR 1 SDWIS / 063507009 / 2010
2009 Methoxychlor MR 1 SDWIS / 063507009 / 2015
2009 Toxaphene MR 1 SDWIS / 063507009 / 2020
2009 Dalapon MR 1 SDWIS / 063507009 / 2031
2009 OXAMYL MR 1 SDWIS / 063507009 / 2036
2009 Simazine MR 1 SDWIS / 063507009 / 2037
2009 Dinoseb MR 1 SDWIS / 063507009 / 2041
2009 Heptachlor MR 1 SDWIS / 063507009 / 2065
2009 Benzo(a)pyrene MR 1 SDWIS / 063507009 / 2306
2009 ETHYLENE DIBROMIDE MR 1 SDWIS / 063507009 / 2946
2009 Chlordane MR 1 SDWIS / 063507009 / 2959
2009 Pentachlorophenol MR 1 SDWIS / 063507009 / 2326

How Mescalero Eight Canyon Compares

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

Metric Mescalero Eight Canyon EPA Region 6 — Tribal Water Systems avg Federal benchmark
Total violations 57 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 21 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 333 - 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 Eight Canyon water safe to drink? ▼
Mescalero Eight Canyon (PWS ID: 063507009) has 57 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 333 people using Groundwater sources.
How many people does Mescalero Eight Canyon serve? ▼
Mescalero Eight Canyon serves 333 people in EPA Region 6 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 93 service connections.
What type of violations does Mescalero Eight Canyon have? ▼
Mescalero Eight Canyon has 57 total violations: 21 health-based violations (MCL exceedances or treatment failures), 35 monitoring/reporting violations, and 19 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mescalero Eight Canyon water? ▼
No PFAS testing data is available for Mescalero Eight Canyon under the EPA's UCMR5 monitoring program.
What water source does Mescalero Eight Canyon use? ▼
Mescalero Eight Canyon 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.