Community Water System · PWS ID6030002
Arimo City Of
Operator location Arimo, Idaho - smaller served population (≤ 999) at 368 people served; 63 SDWIS violations on record from groundwater sources.
- 368
- People served (this PWS)
- 63
- EPA violations (this PWS)
- 12
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Arimo City Of standing, mid SDWIS violation third
368 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 19% is middle-third health share (≤ 23%).
The verdict
Arimo City Of lands in the middle third by violation volume (63), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (368; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 19% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 63
- Total EPA violations on record
- 19%
- Health-based (MCL / treatment failure)
- 368
- 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
- Local
- Connections
- 135
- County
- Bannock
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 45
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 14 | 2011 |
| Lead and Copper Rule | MR | 10 | 2014 |
| Coliform (TCR) | MCL | 8 | 2001 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2025 |
| Chlorine | MR | 4 | 2018 |
| Revised Total Coliform Rule | MCL | 4 | 2024 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| Nitrate | MR | 2 | 1997 |
| Cadmium | MR | 2 | 1993 |
| Mercury | MR | 2 | 1993 |
| Fluoride | MR | 2 | 1993 |
| Chromium | MR | 2 | 1993 |
| Barium | MR | 2 | 1993 |
| Selenium | MR | 2 | 1993 |
Violation Count vs. the National Corpus
Arimo City Of has 63 recorded EPA violations, 63% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 37% carry more. 19% of this system's own violations are health-based (12 of 63), 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)
63 Around the middle fewer violations than 37% 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 Arimo City Of
EPA SDWIS lists 368 people served and 135 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
63 violations · 368 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.
What to do with Arimo City Of
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Idaho compares on the same EPA violation measures. Idaho 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.