Non-Transient Non-Community Water System · PWS VI0000124
Knud Hansen Complex
US Virgin Islands - smaller served population (≤ 999) at 600 people served; 13 SDWIS violations on record from groundwater sources.
- 600
- People served (this PWS)
- 13
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Knud Hansen Complex standing, low SDWIS violation third
600 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%). Population rank #26,585 of 29,740 among systems serving 500+.
The verdict
Knud Hansen Complex is in the lower third by violation count (13; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is smaller (600; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #26,585 of 29,740
- Population · /systems
- #30 of 36
- Population · VI
- 13
- Total EPA violations on record
- 15%
- 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
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- St. Thomas Island
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 2
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
| Combined Radium (-226 and -228) | MR | 1 | 1980 |
| Coliform (TCR) | MCL | 1 | 1996 |
Violation Count vs. the National Corpus
Knud Hansen Complex has 13 recorded EPA violations, 22% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 76% carry more. 15% of this system's own violations are health-based (2 of 13), and it ranks #26,585 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)
13 Among the lowest violation counts fewer violations than 76% 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 Knud Hansen Complex
EPA SDWIS lists 600 people served and 1 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
13 violations · 600 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Knud Hansen Complex
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in US Virgin Islands compares on the same EPA violation measures. US Virgin Islands 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.