Water Quality in EAST KILLINGLY, CT (06243)

EPA violation data for public water systems serving ZIP code 06243.

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

49 of 55 violations have been resolved. 14 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 41 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: 9 Population served: 279

Violations Detail (55 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 7, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 26, 2024	Active	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	Health-Based	N/A	N/A	Apr 15, 2024	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 15, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Apr 13, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Apr 3, 2024	Active	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
Nitrate	Monitoring	N/A	N/A	Mar 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	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Public Notice	Monitoring	N/A	N/A	Feb 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 15, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 14, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 14, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 14, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 14, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Oct 16, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 16, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 16, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 13, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 13, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 13, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Jul 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 16, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Jun 30, 2022	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	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
Nitrate	Monitoring	N/A	N/A	Jun 30, 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	Jun 30, 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	Jun 30, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Public Notice	Monitoring	N/A	N/A	May 4, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 4, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Sep 30, 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	Sep 30, 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	Sep 30, 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	Sep 30, 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	Apr 18, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 18, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 9, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 9, 2021	Resolved	N/A

Violation Timeline

2025(4)

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Public Notice

Jun 7Active

Revised Total Coliform Rule

Apr 30Resolved

2024(8)

Public Notice

Sep 26Active

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Apr 15Active

Revised Total Coliform Rule

Apr 15Active

Public Notice

Apr 13Active

Public Notice

Apr 3Active

How Does This Compare?

EAST KILLINGLY (06243) has 55 recorded violations, including 14 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

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

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 EAST KILLINGLY, CT (06243)

What does this mean?

Violations Detail (55 total)

Violation Timeline

2025(4)

2024(8)

2023(7)

2022(26)

2021(10)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code