Water Quality in TWIN LAKE, MI (49457)

EPA violation data for public water systems serving ZIP code 49457.

186

Total Violations

4

Health-Based

182

Monitoring / Reporting

181

Resolved

What does this mean?

181 of 186 violations have been resolved. 4 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: 57 Population served: 10,037

Violations Detail (186 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
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
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 and Copper RuleMonitoringN/AN/ASep 30, 2024ActiveN/A
Lead and Copper RuleMonitoringN/AN/ASep 30, 2024ActiveN/A

Lead & Copper Levels

Violation Timeline

2024(33)

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

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Active

Lead and Copper Rule

52

Sep 30Active

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

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

4C

May 1Active

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

Revised Total Coliform Rule

3A

Mar 31Resolved

2023(66)

Nitrate

03

Dec 31Resolved

Nitrate

03

Dec 31Resolved

Public Notice

75

Dec 31Resolved

Public Notice

75

Dec 31Resolved

Nitrate

03

Dec 31Resolved

Nitrate

03

Dec 31Resolved

Nitrate

03

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Nitrate

03

Dec 31Resolved

Nitrate

03

Dec 31Resolved

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

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

2A

Sep 13Resolved

E. COLI

34

Aug 7Resolved

E. COLI

34

Aug 7Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

2A

Jun 30Resolved

Revised Total Coliform Rule

2D

Apr 30Resolved

1,2-Dichloropropane

03

Mar 31Resolved

Ethylbenzene

03

Mar 31Resolved

DICHLOROMETHANE

03

Mar 31Resolved

Vinyl chloride

03

Mar 31Resolved

Tetrachloroethylene

03

Mar 31Resolved

Benzene

03

Mar 31Resolved

1,2,4-Trichlorobenzene

03

Mar 31Resolved

1,2-Dichloroethane

03

Mar 31Resolved

1,1,1-Trichloroethane

03

Mar 31Resolved

1,1,2-Trichloroethane

03

Mar 31Resolved

CHLOROBENZENE

03

Mar 31Resolved

Toluene

03

Mar 31Resolved

Styrene

03

Mar 31Resolved

Xylenes, Total

03

Mar 31Resolved

1,1-Dichloroethylene

03

Mar 31Resolved

trans-1,2-Dichloroethylene

03

Mar 31Resolved

Trichloroethylene

03

Mar 31Resolved

o-Dichlorobenzene

03

Mar 31Resolved

cis-1,2-Dichloroethylene

03

Mar 31Resolved

p-Dichlorobenzene

03

Mar 31Resolved

Carbon tetrachloride

03

Mar 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

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

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?

TWIN LAKE (49457) has 186 recorded violations, including 4 health-based. 5 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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