Community Water System · PWS ID3140012
Caldwell Housing Authority
Operator location Caldwell, Idaho - upper-third violation load (> 74 violations) with 86 EPA violations; groundwater source; 1,100 served (PWS-level, not municipal population).
- 1,100
- People served (this PWS)
- 86
- EPA violations (this PWS)
- 11
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Caldwell Housing Authority standing, high SDWIS violation third
86 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 13% is middle-third health share (≤ 23%). Population rank #18,577 of 29,740 among systems serving 500+.
The verdict
Caldwell Housing Authority sits in the upper third of the sitemap cohort by violation count (86), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,100 (mid served population (≤ 3,309)). Health-based share is 13% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #18,577 of 29,740
- Population · /systems
- #115 of 249
- Population · ID
- 86
- 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
- Private
- Connections
- 70
- County
- Canyon
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 64
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 24 | 2008 |
| Lead and Copper Rule | MR | 16 | 2024 |
| Coliform (TCR) | MCL | 11 | 2010 |
| Chlorine | MR | 6 | 2017 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2002 |
| Nitrate | MR | 2 | 1995 |
| Cadmium | MR | 1 | 1993 |
| Selenium | MR | 1 | 1993 |
| Fluoride | MR | 1 | 1993 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2002 |
| ETHYLENE DIBROMIDE | MR | 1 | 2002 |
| Barium | MR | 1 | 1993 |
| Benzo(a)pyrene | MR | 1 | 2002 |
| Mercury | MR | 1 | 1993 |
| Nitrite | MR | 1 | 1993 |
| Chromium | MR | 1 | 1993 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2002 |
Violation Count vs. the National Corpus
Caldwell Housing Authority has 86 recorded EPA violations, 70% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 30% carry more. 13% of this system's own violations are health-based (11 of 86), and it ranks #18,577 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)
86 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
SDWIS compliance record for Caldwell Housing Authority
86 violations on record for ID3140012; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS
Nationwide peers
86 violations · 1,100 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Caldwell Housing Authority
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.