Water Quality in WALLINGFORD, CT (06492)

EPA violation data for public water systems serving ZIP code 06492.

126

Total Violations

Health-Based

123

Monitoring / Reporting

122

Resolved

What does this mean?

122 of 126 violations have been resolved. 3 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 123 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: 38 Population served: 39,617

Violations Detail (126 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Nitrate	Monitoring	N/A	N/A	Mar 31, 2025	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 29, 2024	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	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
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Increased risk of cancer
Styrene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Liver problems; increased risk of cancer
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Increased risk of cancer
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 15, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 15, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Nov 22, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 26, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	Monitoring	N/A	N/A	May 16, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 16, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 16, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 16, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 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
Public Notice	Monitoring	N/A	N/A	Mar 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 16, 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
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
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Lead and Copper 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(1)

Nitrate

Mar 31Resolved

2024(91)

Lead and Copper Rule

Dec 29Resolved

Lead and Copper Rule

Dec 29Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

Consumer Confidence Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Resolved

Styrene

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Styrene

Mar 31Resolved

Toluene

Mar 31Resolved

Toluene

Mar 31Resolved

Toluene

Mar 31Resolved

Toluene

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

Benzene

Mar 31Resolved

Benzene

Mar 31Resolved

Benzene

Mar 31Resolved

Benzene

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

Styrene

Mar 31Resolved

Styrene

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Lead and Copper Rule

Mar 30Resolved

Public Notice

Mar 15Resolved

Public Notice

Mar 15Resolved

How Does This Compare?

WALLINGFORD (06492) has 126 recorded violations, including 3 health-based. 4 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 →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in WALLINGFORD, CT (06492)

What does this mean?

Violations Detail (126 total)

Lead & Copper Levels

Violation Timeline

2025(1)

2024(91)

2023(13)

2022(10)

2021(11)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Nearby ZIP Codes

Check Another ZIP Code