Water Quality in ELLISON BAY, WI (54210)

EPA violation data for public water systems serving ZIP code 54210.

96

Total Violations

20

Health-Based

76

Monitoring / Reporting

95

Resolved

What does this mean?

95 of 96 violations have been resolved. 20 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 76 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: 53 Population served: 2,124

Violations Detail (96 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Revised Total Coliform RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ASep 30, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ASep 30, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ASep 30, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ASep 30, 2024ResolvedN/A
E. COLIMonitoring0N/AAug 8, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations

Violation Timeline

2025(5)

Revised Total Coliform Rule

1A

Jun 30Resolved

Revised Total Coliform Rule

1A

Jun 30Resolved

Revised Total Coliform Rule

1A

Jun 30Resolved

Revised Total Coliform Rule

1A

Jun 30Resolved

Revised Total Coliform Rule

1A

Jun 30Resolved

2024(29)

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

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Jul 6Resolved

E. COLI

34

Jul 6Resolved

E. COLI

34

Jul 6Resolved

E. COLI

34

Jul 6Resolved

Public Notice

75

Jun 30Active

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

1A

May 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

How Does This Compare?

ELLISON BAY (54210) has 96 recorded violations, including 20 health-based. 1 remains 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

NSF Certified Products → EPA Safe Drinking Water Guide →

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

Nearby ZIP Codes

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