Water Quality in HARTFORD, CT (06103)

EPA violation data for public water systems serving ZIP code 06103.

100

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

94 of 100 violations have been resolved. 23 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 77 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: 12 Population served: 1,650

Violations Detail (100 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Public Notice	Monitoring	N/A	N/A	Jan 5, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 5, 2025	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	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	Health-Based	N/A	N/A	Oct 2, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 2, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 2, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 2, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Sep 6, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 6, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 6, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 22, 2023	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 22, 2023	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 22, 2023	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2023	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	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 30, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 6, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 6, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 6, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 6, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 1, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 1, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 1, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 1, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 1, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 1, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 25, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Nov 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(2)

Public Notice

Jan 5Resolved

Public Notice

Jan 5Resolved

2024(27)

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 2Resolved

Revised Total Coliform Rule

Oct 2Resolved

Revised Total Coliform Rule

Oct 2Resolved

Revised Total Coliform Rule

Oct 2Resolved

E. COLI

Sep 6Active

E. COLI

Sep 6Active

E. COLI

Sep 6Active

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

How Does This Compare?

HARTFORD (06103) has 100 recorded violations, including 23 health-based. 6 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 HARTFORD, CT (06103)

What does this mean?

Violations Detail (100 total)

Lead & Copper Levels

Violation Timeline

2025(2)

2024(27)

2023(7)

2022(36)

2021(28)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code