Water Quality in CEDAR LAKE, IN (46303)

EPA violation data for public water systems serving ZIP code 46303.

1,153

Total Violations

98

Health-Based

1,055

Monitoring / Reporting

1,125

Resolved

What does this mean?

1,125 of 1,153 violations have been resolved. 98 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 1,055 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: 83 Population served: 13,702

Violations Detail (1153 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
E. COLIMonitoring0N/ASep 6, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ASep 6, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ASep 6, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
E. COLIMonitoring0N/AAug 29, 2025ActiveSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AAug 29, 2025ActiveSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AAug 21, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations

Lead & Copper Levels

Violation Timeline

2025(96)

E. COLI

34

Sep 6Resolved

E. COLI

34

Sep 6Resolved

E. COLI

34

Sep 6Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

E. COLI

34

Aug 29Active

E. COLI

34

Aug 29Active

E. COLI

34

Aug 21Resolved

E. COLI

34

Aug 21Resolved

E. COLI

34

Aug 21Resolved

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

Jul 31Resolved

Groundwater Rule

45

Jul 14Active

E. COLI

34

Jul 10Active

E. COLI

34

Jul 10Active

Groundwater Rule

45

Jul 10Active

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

72

Jun 30Active

Consumer Confidence Rule

72

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

72

Jun 30Active

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

Consumer Confidence Rule

72

Jun 30Active

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

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Public Notice

75

May 11Resolved

Public Notice

75

May 11Resolved

Public Notice

75

May 11Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

E. COLI

34

Apr 26Resolved

Groundwater Rule

20

Apr 14Active

Groundwater Rule

20

Apr 14Active

Groundwater Rule

20

Apr 10Active

Groundwater Rule

20

Apr 10Active

Revised Total Coliform Rule

1A

Mar 31Resolved

Revised Total Coliform Rule

1A

Mar 31Resolved

Revised Total Coliform Rule

1A

Mar 31Resolved

Revised Total Coliform Rule

1A

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

E. COLI

34

Mar 21Resolved

E. COLI

34

Mar 21Resolved

E. COLI

34

Mar 21Resolved

E. COLI

34

Mar 21Resolved

Revised Total Coliform Rule

2A

Mar 14Resolved

Revised Total Coliform Rule

2A

Mar 14Resolved

Revised Total Coliform Rule

2A

Mar 14Resolved

Revised Total Coliform Rule

2A

Mar 14Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

E. COLI

34

Feb 7Active

E. COLI

34

Feb 7Active

E. COLI

34

Feb 7Active

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Groundwater Rule

20

Jan 16Resolved

Groundwater Rule

20

Jan 16Resolved

Groundwater Rule

20

Jan 16Resolved

2024(238)

Total Haloacetic Acids (HAA5)

27

Dec 31Active

TTHM

27

Dec 31Active

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Groundwater Rule

45

Dec 8Resolved

Groundwater Rule

45

Dec 8Resolved

Groundwater Rule

45

Dec 8Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 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

Consumer Confidence Rule

72

Oct 9Resolved

Consumer Confidence Rule

72

Oct 9Resolved

Consumer Confidence Rule

72

Oct 6Resolved

Consumer Confidence Rule

72

Oct 6Resolved

Consumer Confidence Rule

72

Oct 6Resolved

Consumer Confidence Rule

72

Oct 6Resolved

E. COLI

34

Oct 1Resolved

E. COLI

34

Oct 1Resolved

E. COLI

34

Oct 1Resolved

E. COLI

34

Oct 1Resolved

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

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 20Resolved

Revised Total Coliform Rule

2A

Sep 20Resolved

Revised Total Coliform Rule

2A

Sep 20Resolved

Revised Total Coliform Rule

2A

Sep 20Resolved

E. COLI

34

Sep 9Resolved

E. COLI

34

Sep 9Resolved

E. COLI

34

Sep 9Resolved

E. COLI

34

Sep 9Resolved

E. COLI

34

Sep 6Resolved

E. COLI

34

Sep 6Resolved

E. COLI

34

Sep 6Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

4B

Aug 31Resolved

Revised Total Coliform Rule

4B

Aug 31Resolved

Revised Total Coliform Rule

4B

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

2A

Aug 23Resolved

Revised Total Coliform Rule

2A

Aug 23Resolved

Revised Total Coliform Rule

2A

Aug 23Resolved

E. COLI

34

Aug 13Resolved

E. COLI

34

Aug 13Resolved

E. COLI

34

Aug 13Resolved

E. COLI

34

Aug 13Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

E. COLI

34

Aug 8Resolved

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

Jul 31Resolved

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

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

E. COLI

34

Jul 8Resolved

E. COLI

34

Jul 8Resolved

E. COLI

34

Jul 8Resolved

E. COLI

34

Jul 8Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Radium-226

03

Jun 30Resolved

Radium-226

03

Jun 30Resolved

Radium-226

03

Jun 30Resolved

Gross Alpha, Excl. Radon and U

03

Jun 30Resolved

Gross Alpha, Excl. Radon and U

03

Jun 30Resolved

Radium-228

03

Jun 30Resolved

Radium-228

03

Jun 30Resolved

Radium-228

03

Jun 30Resolved

Gross Alpha, Excl. Radon and U

03

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

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

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

2D

Jun 7Resolved

Revised Total Coliform Rule

2D

Jun 7Resolved

Revised Total Coliform Rule

2D

Jun 7Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

2D

May 8Resolved

Revised Total Coliform Rule

2D

May 8Resolved

Revised Total Coliform Rule

2D

May 8Resolved

Revised Total Coliform Rule

4B

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Radium-226

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Radium-228

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Gross Alpha, Excl. Radon and U

03

Mar 31Resolved

Radium-226

03

Mar 31Resolved

Revised Total Coliform Rule

1A

Feb 29Resolved

Revised Total Coliform Rule

1A

Feb 29Resolved

Revised Total Coliform Rule

1A

Feb 29Resolved

Revised Total Coliform Rule

1A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

E. COLI

34

Feb 12Resolved

E. COLI

34

Feb 12Resolved

E. COLI

34

Feb 12Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

How Does This Compare?

CEDAR LAKE (46303) has 1,153 recorded violations, including 98 health-based. 28 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

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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.

Nearby ZIP Codes

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