Water Quality in BOLTON, CT (06043)

EPA violation data for public water systems serving ZIP code 06043.

184

Total Violations

Health-Based

150

Monitoring / Reporting

161

Resolved

What does this mean?

161 of 184 violations have been resolved. 34 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 150 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: 63 Population served: 2,845

Violations Detail (184 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Increased risk of cancer
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2025	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
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
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
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
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	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	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	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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 11, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 11, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 11, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 11, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Liver problems; increased risk of cancer
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 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	Feb 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 19, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 19, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 10, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 10, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 10, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 10, 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	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
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
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
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 8, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 8, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 8, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 8, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jun 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	May 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 17, 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
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	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 4, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 27, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Aug 9, 2021	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Jun 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	Jun 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	Jun 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	Jun 30, 2021	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	Mar 31, 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
Public Notice	Monitoring	N/A	N/A	Mar 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 12, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(27)

Consumer Confidence Rule

Aug 9Active

Revised Total Coliform Rule

Jul 31Resolved

Lead and Copper Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Active

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

May 31Resolved

Styrene

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

Benzene

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

Toluene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved