Community Water System · PWS 090400243
WMATUA Cibecue
Operator location Whiteriver, EPA Region 9 — Tribal Water Systems - upper-third violation load (> 74 violations) with 180 EPA violations; groundwater source; 2,590 served (PWS-level, not municipal population).
- 2,590
- People served (this PWS)
- 180
- EPA violations (this PWS)
- 5
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
WMATUA Cibecue standing, high SDWIS violation third
180 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 3% is middle-third health share (≤ 23%). Population rank #11,639 of 29,740 among systems serving 500+.
The verdict
WMATUA Cibecue sits in the upper third of the sitemap cohort by violation count (180), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,590 (mid served population (≤ 3,309)). Health-based share is 3% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #11,639 of 29,740
- Population · /systems
- #53 of 129
- Population · 09
- 180
- 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
- 427
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 135
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 62 | 2015 |
| Nitrate | MR | 7 | 2007 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2023 |
| TTHM | MR | 5 | 2023 |
| Consumer Confidence Rule | Other | 3 | 2004 |
| Combined Uranium | MR | 2 | 2008 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Groundwater Rule | TT | 2 | 2025 |
| Endrin | MR | 1 | 2004 |
| Diquat | MR | 1 | 2004 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2004 |
| OXAMYL | MR | 1 | 2004 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2004 |
| Dinoseb | MR | 1 | 2004 |
| Hexachlorocyclopentadiene | MR | 1 | 2004 |
| Atrazine | MR | 1 | 2004 |
| LASSO | MR | 1 | 2004 |
| Heptachlor | MR | 1 | 2004 |
| Heptachlor epoxide | MR | 1 | 2004 |
| HEXACHLOROBENZENE | MR | 1 | 2004 |
| Benzo(a)pyrene | MR | 1 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2004 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2004 |
| ETHYLENE DIBROMIDE | MR | 1 | 2004 |
| Xylenes, Total | MR | 1 | 2004 |
| o-Dichlorobenzene | MR | 1 | 2004 |
| p-Dichlorobenzene | MR | 1 | 2004 |
| Vinyl chloride | MR | 1 | 2004 |
| 1,1-Dichloroethylene | MR | 1 | 2004 |
| Carbon tetrachloride | MR | 1 | 2004 |
Violation Count vs. the National Corpus
WMATUA Cibecue has 180 recorded EPA violations, 84% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 16% carry more. 3% of this system's own violations are health-based (5 of 180), and it ranks #11,639 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)
180 Higher than most more violations than 84% 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
SDWIS compliance record for WMATUA Cibecue
180 violations on record for 090400243; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
180 violations · 2,590 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with WMATUA Cibecue
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in EPA Region 9 — Tribal Water Systems compares on the same EPA violation measures. EPA Region 9 — 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.