Water Quality in NILES, MI (49120)

EPA violation data for public water systems serving ZIP code 49120.

283

Total Violations

20

Health-Based

263

Monitoring / Reporting

280

Resolved

What does this mean?

280 of 283 violations have been resolved. 20 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 263 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: 142 Population served: 36,730

Violations Detail (283 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
ArsenicHealth-BasedN/A0.0113Jun 30, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.0113Jun 30, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2025ResolvedN/A
ArsenicHealth-BasedN/A0.0113Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.0113Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(12)

Consumer Confidence Rule

72

Jun 30Active

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

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

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Public Notice

75

Jan 8Active

2024(123)

Lead and Copper Rule

51

Dec 31Resolved

Lead and Copper Rule

51

Dec 31Resolved

Lead and Copper Rule

51

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Vinyl chloride

03

Dec 31Resolved

Styrene

03

Dec 31Resolved

Trichloroethylene

03

Dec 31Resolved

Trichloroethylene

03

Dec 31Resolved

1,2,4-Trichlorobenzene

03

Dec 31Resolved

1,2,4-Trichlorobenzene

03

Dec 31Resolved

1,2,4-Trichlorobenzene

03

Dec 31Resolved

Xylenes, Total

03

Dec 31Resolved

Xylenes, Total

03

Dec 31Resolved

Xylenes, Total

03

Dec 31Resolved

DICHLOROMETHANE

03

Dec 31Resolved

DICHLOROMETHANE

03

Dec 31Resolved

DICHLOROMETHANE

03

Dec 31Resolved

o-Dichlorobenzene

03

Dec 31Resolved

o-Dichlorobenzene

03

Dec 31Resolved

o-Dichlorobenzene

03

Dec 31Resolved

p-Dichlorobenzene

03

Dec 31Resolved

Trichloroethylene

03

Dec 31Resolved

p-Dichlorobenzene

03

Dec 31Resolved

1,1-Dichloroethylene

03

Dec 31Resolved

1,1-Dichloroethylene

03

Dec 31Resolved

1,1-Dichloroethylene

03

Dec 31Resolved

1,2-Dichloropropane

03

Dec 31Resolved

1,2-Dichloropropane

03

Dec 31Resolved

1,2-Dichloropropane

03

Dec 31Resolved

1,1,2-Trichloroethane

03

Dec 31Resolved

1,1,2-Trichloroethane

03

Dec 31Resolved

1,1,2-Trichloroethane

03

Dec 31Resolved

CHLOROBENZENE

03

Dec 31Resolved

CHLOROBENZENE

03

Dec 31Resolved

CHLOROBENZENE

03

Dec 31Resolved

1,2-Dichloroethane

03

Dec 31Resolved

1,2-Dichloroethane

03

Dec 31Resolved

1,2-Dichloroethane

03

Dec 31Resolved

Carbon tetrachloride

03

Dec 31Resolved

Carbon tetrachloride

03

Dec 31Resolved

Carbon tetrachloride

03

Dec 31Resolved

Tetrachloroethylene

03

Dec 31Resolved

Tetrachloroethylene

03

Dec 31Resolved

Tetrachloroethylene

03

Dec 31Resolved

cis-1,2-Dichloroethylene

03

Dec 31Resolved

cis-1,2-Dichloroethylene

03

Dec 31Resolved

cis-1,2-Dichloroethylene

03

Dec 31Resolved

trans-1,2-Dichloroethylene

03

Dec 31Resolved

trans-1,2-Dichloroethylene

03

Dec 31Resolved

trans-1,2-Dichloroethylene

03

Dec 31Resolved

Benzene

03

Dec 31Resolved

Benzene

03

Dec 31Resolved

Benzene

03

Dec 31Resolved

Styrene

03

Dec 31Resolved

Styrene

03

Dec 31Resolved

Ethylbenzene

03

Dec 31Resolved

Ethylbenzene

03

Dec 31Resolved

Ethylbenzene

03

Dec 31Resolved

1,1,1-Trichloroethane

03

Dec 31Resolved

1,1,1-Trichloroethane

03

Dec 31Resolved

1,1,1-Trichloroethane

03

Dec 31Resolved

Vinyl chloride

03

Dec 31Resolved

Vinyl chloride

03

Dec 31Resolved

Toluene

03

Dec 31Resolved

Toluene

03

Dec 31Resolved

Toluene

03

Dec 31Resolved

p-Dichlorobenzene

03

Dec 31Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

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

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Lead and Copper Rule

51

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

Lead and Copper Rule

51

Jun 30Resolved

Lead and Copper Rule

51

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

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

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

3D

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

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

How Does This Compare?

NILES (49120) has 283 recorded violations, including 20 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.

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