Water Quality in Oak Island, MN (56741)

EPA violation data for public water systems serving ZIP code 56741.

224

Total Violations

42

Health-Based

182

Monitoring / Reporting

214

Resolved

What does this mean?

214 of 224 violations have been resolved. 42 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 182 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 9 Population served: 374

Violations Detail (224 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AJun 21, 2025ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AApr 30, 2025ResolvedN/A

Violation Timeline

2025(24)

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Public Notice

75

Jun 21Active

Revised Total Coliform Rule

3A

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Feb 28Resolved

Interim Enhanced Surface Water Treatment Rule

38

Feb 28Resolved

Public Notice

75

Feb 10Active

Interim Enhanced Surface Water Treatment Rule

38

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jan 31Resolved

2024(33)

Interim Enhanced Surface Water Treatment Rule

38

Dec 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Dec 31Resolved

Public Notice

75

Dec 13Active

Public Notice

75

Nov 17Active

Public Notice

75

Oct 25Active

Public Notice

75

Oct 19Active

Interim Enhanced Surface Water Treatment Rule

38

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Public Notice

75

Sep 21Active

Interim Enhanced Surface Water Treatment Rule

38

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Public Notice

75

Jul 7Active

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Public Notice

75

May 20Active

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Feb 29Resolved

Interim Enhanced Surface Water Treatment Rule

38

Feb 29Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jan 31Resolved

Public Notice

75

Jan 22Resolved

Public Notice

75

Jan 22Resolved

Public Notice

75

Jan 22Resolved

Public Notice

75

Jan 22Resolved

How Does This Compare?

Oak Island (56741) has 224 recorded violations, including 42 health-based. 10 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Nearby ZIP Codes

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