Water Quality in MUKWONAGO, WI (53149)

EPA violation data for public water systems serving ZIP code 53149.

389

Total Violations

52

Health-Based

337

Monitoring / Reporting

386

Resolved

What does this mean?

386 of 389 violations have been resolved. 52 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 337 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: 60 Population served: 14,665

Violations Detail (389 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/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
Lead and Copper RuleMonitoringN/AN/ADec 31, 2024ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(5)

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

72

Jun 30Active

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

2024(15)

Lead and Copper Rule

66

Dec 31Active

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Public Notice

75

May 31Resolved

Public Notice

75

May 31Resolved

Lead and Copper Rule

52

May 31Resolved

Lead and Copper Rule

52

May 31Resolved

Lead and Copper Rule

52

May 31Resolved

Lead and Copper Rule

52

May 31Resolved

Revised Total Coliform Rule

2C

Apr 5Resolved

Revised Total Coliform Rule

2C

Apr 5Resolved

Revised Total Coliform Rule

2C

Apr 5Resolved

Revised Total Coliform Rule

2C

Apr 5Resolved

How Does This Compare?

MUKWONAGO (53149) has 389 recorded violations, including 52 health-based. 3 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.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

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

Check Another ZIP Code