Water Quality in NORTH HAVEN, CT (06473)

EPA violation data for public water systems serving ZIP code 06473.

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

68 of 78 violations have been resolved. 20 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 58 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: 45 Population served: 1,194

Violations Detail (78 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Public Notice	Monitoring	N/A	N/A	Jun 7, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jun 6, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jun 5, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jun 5, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Dec 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 10, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Oct 15, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jul 7, 2024	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 16, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 16, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 16, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 24, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 24, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 24, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 24, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 6, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 6, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 6, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 6, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 15, 2022	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 15, 2022	Active	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
Public Notice	Monitoring	N/A	N/A	Jan 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 21, 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	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 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
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	Health-Based	N/A	N/A	Oct 13, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 13, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 13, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 13, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 1, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 1, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(4)

Public Notice

Jun 7Active

Public Notice

Jun 6Active

Public Notice

Jun 5Active

Public Notice

Jun 5Active

2024(9)

Public Notice

Dec 10Resolved

Public Notice

Dec 10Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

Public Notice

Oct 15Active

Public Notice

Jul 7Active

Revised Total Coliform Rule

Jan 16Resolved

Revised Total Coliform Rule

Jan 16Resolved

Revised Total Coliform Rule

Jan 16Resolved

How Does This Compare?

NORTH HAVEN (06473) has 78 recorded violations, including 20 health-based. 10 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 NORTH HAVEN, CT (06473)

What does this mean?

Violations Detail (78 total)

Lead & Copper Levels

Violation Timeline

2025(4)

2024(9)

2023(32)

2022(14)

2021(19)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

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