Community Water System · PWS 063509008
Mescalero Nogal Canyon
EPA Region 6 — Tribal Water Systems - 51% of 160 violations are health-based (upper-third health share (> 23%)); groundwater source; 33 served per SDWIS.
- 33
- People served (this PWS)
- 160
- EPA violations (this PWS)
- 82
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Mescalero Nogal Canyon standing, high SDWIS violation third
51% of 160 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 51% is upper-third health share (> 23%).
The verdict
Mescalero Nogal Canyon sits in the upper third of the sitemap cohort by violation count (160), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (33; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 51% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 160
- Total EPA violations on record
- 51%
- Health-based (MCL / treatment failure)
- 33
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 8
- School/Daycare
- No
- MCL Violations
- 48
- Monitoring Violations
- 73
- Treatment Tech Violations
- 34
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 70 | 2003 |
| Coliform (TCR) | MCL | 48 | 2004 |
| Groundwater Rule | TT | 30 | 2017 |
| Consumer Confidence Rule | Other | 5 | 2004 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 4 | 2010 |
| Nitrate-Nitrite | MR | 3 | 2013 |
Violation Count vs. the National Corpus
Mescalero Nogal Canyon has 160 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 51% of this system's own violations are health-based (82 of 160), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
160 Higher than most more violations than 82% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Health-based violations on Mescalero Nogal Canyon
82 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for 063509008.
Sources: EPA SDWIS
Nationwide peers
160 violations · 33 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Mescalero Nogal Canyon
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in EPA Region 6 — Tribal Water Systems compares on the same EPA violation measures. EPA Region 6 — Tribal Water Systems systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.