Water Quality in SOUTH BEND, IN (46637)

EPA violation data for public water systems serving ZIP code 46637.

128

Total Violations

Health-Based

121

Monitoring / Reporting

126

Resolved

What does this mean?

126 of 128 violations have been resolved. 7 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 121 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: 22 Population served: 6,548

Violations Detail (128 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Groundwater Rule	Monitoring	N/A	N/A	May 28, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 28, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 28, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 16, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 16, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 16, 2025	Resolved	N/A
E. COLI	Monitoring	0	N/A	Mar 30, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 27, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 27, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 27, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 21, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 21, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 21, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Groundwater Rule	Monitoring	N/A	N/A	Mar 12, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 12, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 12, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Nov 1, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 1, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Nitrite	Monitoring	N/A	N/A	Apr 15, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Apr 15, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Apr 15, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 15, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 15, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Oct 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Nov 16, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 16, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 16, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 10, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 10, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 10, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(19)

Groundwater Rule

May 28Resolved

Groundwater Rule

May 28Resolved

Groundwater Rule

May 28Resolved

Revised Total Coliform Rule

Apr 16Resolved

Revised Total Coliform Rule

Apr 16Resolved

Revised Total Coliform Rule

Apr 16Resolved

E. COLI

Mar 30Resolved

E. COLI

Mar 27Resolved

E. COLI

Mar 27Resolved

E. COLI

Mar 27Resolved

E. COLI

Mar 21Resolved

E. COLI

Mar 21Resolved

E. COLI

Mar 21Resolved

Groundwater Rule

Mar 12Resolved

Groundwater Rule

Mar 12Resolved

Groundwater Rule

Mar 12Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2024(25)

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

E. COLI

Nov 1Active

E. COLI

Nov 1Active

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Nitrite

Apr 15Resolved

Nitrite

Apr 15Resolved

Nitrite

Apr 15Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

How Does This Compare?

SOUTH BEND (46637) has 128 recorded violations, including 7 health-based. 2 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.

Water Quality in SOUTH BEND, IN (46637)

What does this mean?

Violations Detail (128 total)

Lead & Copper Levels

Violation Timeline

2025(19)

2024(25)

2023(18)

2022(38)

2021(28)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code