Non-Transient Non-Community Water System · PWS AZ0414367
Kofa Cantonment Area
Operator location Yuma, Arizona - 31% of 236 violations are health-based (upper-third health share (> 23%)); groundwater source; 390 served per SDWIS.
- 390
- People served (this PWS)
- 236
- EPA violations (this PWS)
- 72
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Kofa Cantonment Area standing, high SDWIS violation third
31% of 236 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 31% is upper-third health share (> 23%).
The verdict
Kofa Cantonment Area sits in the upper third of the sitemap cohort by violation count (236), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (390; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 31% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 236
- Total EPA violations on record
- 31%
- Health-based (MCL / treatment failure)
- 390
- 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
- Non-Transient Non-Community
- Owner Type
- Federal
- Connections
- 64
- County
- Yuma
- School/Daycare
- No
- MCL Violations
- 72
- Monitoring Violations
- 153
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 64 | 2011 |
| Arsenic | MR | 31 | 2012 |
| Chlorine | MR | 18 | 2016 |
| Coliform (TCR) | MR | 11 | 2012 |
| Nitrate | MR | 8 | 2012 |
| Coliform (TCR) | MCL | 6 | 2013 |
| TTHM | MR | 6 | 2012 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2012 |
| Lead and Copper Rule | MR | 4 | 2017 |
| 2,3,7,8-TCDD | MR | 4 | 2011 |
| Nickel | MR | 2 | 2011 |
| Diquat | MR | 2 | 2011 |
| Endothall | MR | 2 | 2011 |
| Glyphosate | MR | 2 | 2011 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2011 |
| OXAMYL | MR | 2 | 2011 |
| Picloram | MR | 2 | 2011 |
| Hexachlorocyclopentadiene | MR | 2 | 2011 |
| Atrazine | MR | 2 | 2011 |
| LASSO | MR | 2 | 2011 |
| Heptachlor | MR | 2 | 2011 |
| 2,4-D | MR | 2 | 2011 |
| HEXACHLOROBENZENE | MR | 2 | 2011 |
| Benzo(a)pyrene | MR | 2 | 2011 |
| Pentachlorophenol | MR | 2 | 2011 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2011 |
| ETHYLENE DIBROMIDE | MR | 2 | 2011 |
| Chlordane | MR | 2 | 2011 |
| Endrin | MR | 2 | 2011 |
| Methoxychlor | MR | 2 | 2011 |
Violation Count vs. the National Corpus
Kofa Cantonment Area has 236 recorded EPA violations, 87% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 12% carry more. 31% of this system's own violations are health-based (72 of 236), 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)
236 Higher than most more violations than 87% 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 Kofa Cantonment Area
72 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0414367.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
236 violations · 390 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 Kofa Cantonment Area
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Arizona compares on the same EPA violation measures. Arizona 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.