Community Water System · PWS ID1090021
Colburn Water Assn
Operator location Sandpoint, Idaho - 58% of 85 violations are health-based (upper-third health share (> 23%)); surface water source; 290 served per SDWIS.
- 290
- People served (this PWS)
- 85
- EPA violations (this PWS)
- 49
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Colburn Water Assn standing, high SDWIS violation third
58% of 85 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 58% is upper-third health share (> 23%).
The verdict
Colburn Water Assn sits in the upper third of the sitemap cohort by violation count (85), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (290; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 58% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 85
- Total EPA violations on record
- 58%
- Health-based (MCL / treatment failure)
- 290
- 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
- 126
- County
- Bonner
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 29
- Treatment Tech Violations
- 48
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 48 | 1997 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2025 |
| Coliform (TCR) | MR | 3 | 2000 |
| Groundwater Rule | MR | 2 | 2019 |
| Surface Water Treatment Rule | MR | 2 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2024 |
| Nitrate | MR | 2 | 2000 |
| Interim Enhanced Surface Water Treatment Rule | MR | 2 | 2022 |
| TTHM | MR | 2 | 2024 |
| Toxaphene | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Methoxychlor | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| 2,4-D | MR | 1 | 1979 |
| BHC-GAMMA | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| 2,4,5-TP | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Endrin | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Coliform (TCR) | MCL | 1 | 1991 |
Violation Count vs. the National Corpus
Colburn Water Assn has 85 recorded EPA violations, 70% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 30% carry more. 58% of this system's own violations are health-based (49 of 85), 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)
85 Around the middle fewer violations than 30% 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 Colburn Water Assn
49 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for ID1090021.
Sources: EPA SDWIS
Nationwide peers
85 violations · 290 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 Colburn Water Assn
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.