Community Water System · PWS ID1280009
Rimrock Service Area
Operator location Rathdrum, Idaho - larger served population (> 3,309) at 3,493 people served; 31 SDWIS violations on record from groundwater sources.
- 3,493
- People served (this PWS)
- 31
- EPA violations (this PWS)
- 4
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Rimrock Service Area standing, mid SDWIS violation third
3,493 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 13% is middle-third health share (≤ 23%). Population rank #9,670 of 29,740 among systems serving 500+.
The verdict
Rimrock Service Area lands in the middle third by violation volume (31), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (3,493; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 13% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #9,670 of 29,740
- Population · /systems
- #56 of 249
- Population · ID
- 31
- Total EPA violations on record
- 13%
- 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
- Public/Private
- Connections
- 1,397
- County
- Kootenai
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 27
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 4 | 2010 |
| Nitrate | MR | 4 | 2016 |
| cis-1,2-Dichloroethylene | MR | 1 | 2008 |
| DICHLOROMETHANE | MR | 1 | 2008 |
| o-Dichlorobenzene | MR | 1 | 2008 |
| p-Dichlorobenzene | MR | 1 | 2008 |
| Vinyl chloride | MR | 1 | 2008 |
| 1,1-Dichloroethylene | MR | 1 | 2008 |
| trans-1,2-Dichloroethylene | MR | 1 | 2008 |
| 1,1,1-Trichloroethane | MR | 1 | 2008 |
| Carbon tetrachloride | MR | 1 | 2008 |
| 1,2-Dichloropropane | MR | 1 | 2008 |
| Trichloroethylene | MR | 1 | 2008 |
| 1,1,2-Trichloroethane | MR | 1 | 2008 |
| CHLOROBENZENE | MR | 1 | 2008 |
| Benzene | MR | 1 | 2008 |
| Toluene | MR | 1 | 2008 |
| Ethylbenzene | MR | 1 | 2008 |
| Styrene | MR | 1 | 2008 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2008 |
| 1,2-Dichloroethane | MR | 1 | 2008 |
| Xylenes, Total | MR | 1 | 2008 |
| Chlorine | MR | 1 | 2006 |
| Coliform (TCR) | MR | 1 | 1999 |
| Tetrachloroethylene | MR | 1 | 2008 |
Violation Count vs. the National Corpus
Rimrock Service Area has 31 recorded EPA violations, 43% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 56% carry more. 13% of this system's own violations are health-based (4 of 31), and it ranks #9,670 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)
31 Lower than most fewer violations than 56% 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 Rimrock Service Area
EPA SDWIS lists 3,493 people served and 1,397 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
31 violations · 3,493 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 similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Rimrock Service Area
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.