Community Water System · PWS 063504118
Santa Ana Eastside
Operator location Santa Ana Pueblo, EPA Region 6 — Tribal Water Systems - smaller served population (≤ 999) at 759 people served; 33 SDWIS violations on record from groundwater sources.
- 759
- People served (this PWS)
- 33
- EPA violations (this PWS)
- 5
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Santa Ana Eastside standing, mid SDWIS violation third
759 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%). Population rank #23,194 of 29,740 among systems serving 500+.
The verdict
Santa Ana Eastside lands in the middle third by violation volume (33), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (759; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #23,194 of 29,740
- Population · /systems
- #45 of 54
- Population · 06
- 33
- Total EPA violations on record
- 15%
- 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
- 250
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 22
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 10 | 2011 |
| Consumer Confidence Rule | Other | 6 | 2005 |
| Groundwater Rule | TT | 4 | 2017 |
| Coliform (TCR) | MCL | 1 | 1998 |
| Nitrate-Nitrite | MR | 1 | 2010 |
| Thallium, Total | MR | 1 | 2002 |
| Barium | MR | 1 | 2002 |
| CYANIDE | MR | 1 | 2002 |
| Cadmium | MR | 1 | 2002 |
| Chromium | MR | 1 | 2002 |
| Nickel | MR | 1 | 2002 |
| Antimony, Total | MR | 1 | 2002 |
| TTHM | MR | 1 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2008 |
| Arsenic | MR | 1 | 2010 |
| Selenium | MR | 1 | 2002 |
Violation Count vs. the National Corpus
Santa Ana Eastside has 33 recorded EPA violations, 45% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 54% carry more. 15% of this system's own violations are health-based (5 of 33), and it ranks #23,194 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)
33 Lower than most fewer violations than 54% 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 Santa Ana Eastside
EPA SDWIS lists 759 people served and 250 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
33 violations · 759 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
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 Santa Ana Eastside
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.