Water Quality in COLDWATER, MI (49036)

EPA violation data for public water systems serving ZIP code 49036.

200

Total Violations

5

Health-Based

195

Monitoring / Reporting

196

Resolved

What does this mean?

196 of 200 violations have been resolved. 5 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 195 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: 108 Population served: 24,740

Violations Detail (200 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
NitrateHealth-BasedN/A11Aug 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11Aug 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11Aug 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Groundwater RuleHealth-BasedN/AN/AJul 8, 2025ActiveN/A
Groundwater RuleHealth-BasedN/AN/AJul 8, 2025ActiveN/A
Lead and Copper RuleMonitoringN/AN/ASep 30, 2024ActiveN/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

Lead & Copper Levels

Violation Timeline

2025(5)

Nitrate

02

Aug 31Resolved

Nitrate

02

Aug 31Resolved

Nitrate

02

Aug 31Resolved

Groundwater Rule

45

Jul 8Active

Groundwater Rule

45

Jul 8Active

2024(12)

Lead and Copper Rule

52

Sep 30Active

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

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

4C

Apr 16Resolved

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?

COLDWATER (49036) has 200 recorded violations, including 5 health-based. 4 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

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.

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