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Transient Non-Community Water System · PWS MN5390052

Flag Island Resort

Operator location Angle Inlet, Minnesota - 49% of 216 violations are health-based (upper-third health share (> 23%)); surface water source; 120 served per SDWIS.

120
People served (this PWS)
216
EPA violations (this PWS)
106
Health-based (this PWS)
Untested
UCMR5 (this PWS)
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Flag Island Resort standing, high SDWIS violation third

49% of 216 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 49% is upper-third health share (> 23%).

The verdict

Flag Island Resort sits in the upper third of the sitemap cohort by violation count (216), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (120; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 49% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.

216
Total EPA violations on record
49%
Health-based (MCL / treatment failure)
120
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
Transient Non-Community
Owner Type
Private
Connections
27
County
Lake of the Woods
School/Daycare
No
MCL Violations
21
Monitoring Violations
101
Treatment Tech Violations
85

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 59 2025
Surface Water Treatment Rule TT 58 2025
Interim Enhanced Surface Water Treatment Rule TT 27 2025
Coliform (TCR) MCL 21 2014
Interim Enhanced Surface Water Treatment Rule MR 20 2024
Surface Water Treatment Rule MR 15 2002
Public Notice Other 9 2025
Coliform (TCR) MR 7 2002

Violation Count vs. the National Corpus

Flag Island Resort has 216 recorded EPA violations, 86% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 14% carry more. 49% of this system's own violations are health-based (106 of 216), 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)

216 Higher than most more violations than 86% 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 Flag Island Resort

106 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MN5390052.

Sources: EPA SDWIS

Nationwide peers

216 violations · 120 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.

4 peers

What to do with Flag Island Resort

Use this system's EPA-reported record as a starting filter, not a final verdict.

  • See how every tracked system in Minnesota compares on the same EPA violation measures. Minnesota 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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater