Community Water System · PWS NN0403026
Klagetoh NTUA
Operator location Ft Defiance, Navajo Nation - smaller served population (≤ 999) at 971 people served; 96 SDWIS violations on record from groundwater sources.
- 971
- People served (this PWS)
- 96
- EPA violations (this PWS)
- 3
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Klagetoh NTUA standing, high SDWIS violation third
971 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 3% is middle-third health share (≤ 23%). Population rank #20,141 of 29,740 among systems serving 500+.
The verdict
Klagetoh NTUA sits in the upper third of the sitemap cohort by violation count (96), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (971; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 3% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #20,141 of 29,740
- Population · /systems
- #49 of 82
- Population · NN
- 96
- Total EPA violations on record
- 3%
- Health-based (MCL / treatment failure)
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
- 284
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 83
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 9 | 2014 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2008 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 2008 |
| ETHYLENE DIBROMIDE | MR | 4 | 2008 |
| Coliform (TCR) | MCL | 3 | 2010 |
| TTHM | MR | 3 | 2020 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2020 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 2 | 2013 |
| Nitrate | MR | 2 | 2007 |
| Endrin | MR | 1 | 2004 |
| Methoxychlor | MR | 1 | 2004 |
| Endothall | MR | 1 | 2004 |
| Glyphosate | MR | 1 | 2004 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2004 |
| Dinoseb | MR | 1 | 2004 |
| Carbofuran | MR | 1 | 2004 |
| Aldicarb | MR | 1 | 2004 |
| 2,3,7,8-TCDD | MR | 1 | 2004 |
| Heptachlor | MR | 1 | 2004 |
| Heptachlor epoxide | MR | 1 | 2004 |
| 2,4-D | MR | 1 | 2004 |
| 2,4,5-TP | MR | 1 | 2004 |
| HEXACHLOROBENZENE | MR | 1 | 2004 |
| Benzo(a)pyrene | MR | 1 | 2004 |
| Pentachlorophenol | MR | 1 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2004 |
| Xylenes, Total | MR | 1 | 2004 |
| Vinyl chloride | MR | 1 | 2004 |
| 1,1-Dichloroethylene | MR | 1 | 2004 |
| trans-1,2-Dichloroethylene | MR | 1 | 2004 |
Violation Count vs. the National Corpus
Klagetoh NTUA has 96 recorded EPA violations, 72% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 27% carry more. 3% of this system's own violations are health-based (3 of 96), and it ranks #20,141 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
96 Around the middle fewer violations than 27% 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
Population served record for Klagetoh NTUA
EPA SDWIS lists 971 people served and 284 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
96 violations · 971 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.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Klagetoh NTUA
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Navajo Nation compares on the same EPA violation measures. Navajo Nation 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.