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Community Water System · PWS 063502084

Isleta Los Charcos

Operator location Isleta, EPA Region 6 — Tribal Water Systems - smaller served population (≤ 999) at 114 people served; 23 SDWIS violations on record from groundwater sources.

114
People served (this PWS)
23
EPA violations (this PWS)
5
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Isleta Los Charcos standing, mid SDWIS violation third

114 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 22% is middle-third health share (≤ 23%).

The verdict

Isleta Los Charcos lands in the middle third by violation volume (23), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (114; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 22% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

23
Total EPA violations on record
22%
Health-based (MCL / treatment failure)
114
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
31
School/Daycare
No
MCL Violations
4
Monitoring Violations
11
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2001
Consumer Confidence Rule Other 6 2005
Coliform (TCR) MCL 4 2009
Groundwater Rule TT 1 2013

Violation Count vs. the National Corpus

Isleta Los Charcos has 23 recorded EPA violations, 35% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 64% carry more. 22% of this system's own violations are health-based (5 of 23), 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)

23 Lower than most fewer violations than 64% 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 Isleta Los Charcos

EPA SDWIS lists 114 people served and 31 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

Sources: EPA SDWIS

Nationwide peers

23 violations · 114 served: nearest cross-state SDWIS matches.

What to do with Isleta Los Charcos

Use this system's EPA-reported record as a starting filter, not a final verdict.

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater