Water Quality in GREENWICH, CT (06831)

EPA violation data for public water systems serving ZIP code 06831.

331

Total Violations

118

Health-Based

213

Monitoring / Reporting

316

Resolved

What does this mean?

316 of 331 violations have been resolved. 118 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 213 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: 29 Population served: 3,774

Violations Detail (331 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Public Notice	Monitoring	N/A	N/A	Sep 12, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Sep 12, 2025	Active	N/A
Lead and Copper Rule	Health-Based	N/A	N/A	Jun 30, 2025	Active	N/A
Lead and Copper Rule	Health-Based	N/A	N/A	Jun 30, 2025	Active	N/A
Lead and Copper Rule	Health-Based	N/A	N/A	Jun 29, 2025	Active	N/A
Lead and Copper Rule	Health-Based	N/A	N/A	Jun 29, 2025	Active	N/A
Chlorine	Monitoring	N/A	N/A	May 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
E. COLI	Monitoring	0	N/A	May 31, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
E. COLI	Monitoring	0	N/A	Apr 15, 2025	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Mar 31, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 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	Monitoring	N/A	N/A	Oct 31, 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
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
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2024	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 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	Aug 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 14, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 14, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 8, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	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	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	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	Jun 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 29, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 28, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 28, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 28, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 28, 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	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	May 24, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 24, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 24, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 24, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 18, 2024	Resolved	N/A
Combined Uranium	Health-Based	N/A	32	Mar 31, 2024	Resolved	N/A
Combined Uranium	Health-Based	N/A	32	Mar 31, 2024	Resolved	N/A
Combined Uranium	Health-Based	N/A	32	Mar 31, 2024	Resolved	N/A
Combined Uranium	Health-Based	N/A	32	Mar 31, 2024	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	18	Mar 31, 2024	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	18	Mar 31, 2024	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	18	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 15, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 28, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 28, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 28, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 28, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Dec 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Dec 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Dec 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Dec 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	Dec 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	Dec 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	Dec 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 4, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 4, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 14, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 14, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 14, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 14, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Sep 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	25	Sep 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	25	Sep 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	25	Sep 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Sep 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Sep 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	47	Sep 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 28, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 4, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 4, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 25, 2023	Active	N/A
Combined Uranium	Health-Based	N/A	49	Jun 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	26	Jun 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	26	Jun 30, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	26	Jun 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Jun 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Jun 30, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2023	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	28	Mar 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	48	Mar 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	48	Mar 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	48	Mar 31, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	48	Mar 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	28	Mar 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	28	Mar 31, 2023	Resolved	N/A
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	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
Lead and Copper 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	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
Public Notice	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 26, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 26, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 26, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 26, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 8, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 8, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 8, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 8, 2023	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Dec 31, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Dec 31, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Dec 31, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	49	Dec 31, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	33	Dec 31, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	33	Dec 31, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	33	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 24, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 24, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	29	Sep 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	43	Sep 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	43	Sep 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	43	Sep 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	29	Sep 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	29	Sep 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	43	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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 28, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	31	Jun 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	31	Jun 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	31	Jun 30, 2022	Resolved	N/A
Combined Uranium	Health-Based	N/A	31	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	21	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	Monitoring	N/A	N/A	Jun 30, 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	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Feb 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Feb 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Feb 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Feb 11, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Dec 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 17, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 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	Health-Based	N/A	N/A	Aug 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 14, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 14, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 14, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 14, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 12, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Aug 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 1, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Feb 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 17, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(15)

Public Notice

Sep 12Active

Public Notice

Sep 12Active

Lead and Copper Rule

Jun 30Active

Lead and Copper Rule

Jun 30Active

Lead and Copper Rule

Jun 29Active

Lead and Copper Rule

Jun 29Active

Chlorine

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

E. COLI

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Public Notice

May 10Resolved

Revised Total Coliform Rule

Apr 30Resolved

E. COLI

Apr 15Active

E. COLI

Mar 31Resolved

2024(85)

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

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

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Lead and Copper Rule

Sep 28Resolved

Lead and Copper Rule

Sep 28Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Public Notice

Aug 14Resolved

Public Notice

Aug 14Resolved

Public Notice

Aug 8Resolved

Public Notice

Aug 8Resolved

Public Notice

Aug 8Resolved

Public Notice

Aug 8Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 29Resolved

Revised Total Coliform Rule

Jun 29Resolved

Revised Total Coliform Rule

Jun 29Resolved

Revised Total Coliform Rule

Jun 29Resolved

Public Notice

Jun 28Resolved

Public Notice

Jun 28Resolved

Public Notice

Jun 28Resolved

Public Notice

Jun 28Resolved

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

Revised Total Coliform Rule

May 24Resolved

Revised Total Coliform Rule

May 24Resolved

Revised Total Coliform Rule

May 24Resolved

Revised Total Coliform Rule

May 24Resolved

Public Notice

Apr 18Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Revised Total Coliform Rule

Mar 15Active

Revised Total Coliform Rule

Mar 15Active

Revised Total Coliform Rule

Mar 15Resolved

Revised Total Coliform Rule

Mar 15Resolved

Revised Total Coliform Rule

Mar 15Resolved

Revised Total Coliform Rule

Mar 15Resolved

Revised Total Coliform Rule

Mar 15Active

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 28Resolved

Revised Total Coliform Rule

Jan 28Resolved

Revised Total Coliform Rule

Jan 28Resolved

Revised Total Coliform Rule

Jan 28Resolved

2023(144)

o-Dichlorobenzene

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

o-Dichlorobenzene

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

o-Dichlorobenzene

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

trans-1,2-Dichloroethylene

Dec 31Resolved

trans-1,2-Dichloroethylene

Dec 31Resolved

trans-1,2-Dichloroethylene

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Benzene

Dec 31Resolved

Benzene

Dec 31Resolved

Benzene

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

Toluene

Dec 31Resolved

Toluene

Dec 31Resolved

Toluene

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

Styrene

Dec 31Resolved

Styrene

Dec 31Resolved

Styrene

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Lead and Copper Rule

Dec 29Resolved

Public Notice

Nov 30Resolved

Public Notice

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Public Notice

Nov 4Resolved

Public Notice

Nov 4Resolved

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 14Resolved

Revised Total Coliform Rule

Oct 14Resolved

Revised Total Coliform Rule

Oct 14Resolved

Revised Total Coliform Rule

Oct 14Resolved

Combined Uranium

Sep 30Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Lead and Copper Rule

Sep 28Resolved

Lead and Copper Rule

Sep 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Revised Total Coliform Rule

Aug 28Resolved

Public Notice

Aug 4Resolved

Public Notice

Aug 4Resolved

Public Notice

Jul 25Active

Combined Uranium

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Public Notice

May 10Resolved

Public Notice

May 10Resolved

ETHYLENE DIBROMIDE

Mar 31Resolved

ETHYLENE DIBROMIDE

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Public Notice

Mar 29Resolved

Public Notice

Mar 29Resolved

Public Notice

Feb 26Resolved

Public Notice

Feb 26Resolved

Public Notice

Feb 26Resolved

Public Notice

Feb 26Resolved

Revised Total Coliform Rule

Jan 8Resolved

Revised Total Coliform Rule

Jan 8Resolved

Revised Total Coliform Rule

Jan 8Resolved

Revised Total Coliform Rule

Jan 8Resolved

2022(57)

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Gross Alpha, Excl. Radon and U

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Lead and Copper Rule

Dec 29Resolved

Lead and Copper Rule

Dec 29Resolved

Public Notice

Nov 24Resolved

Public Notice

Nov 24Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Gross Alpha, Excl. Radon and U

Sep 30Resolved

Combined Uranium

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Lead and Copper Rule

Sep 28Resolved

Lead and Copper Rule

Sep 28Resolved

Combined Uranium

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Lead and Copper Rule

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 11Resolved

Revised Total Coliform Rule

Mar 11Resolved

Revised Total Coliform Rule

Mar 11Resolved

Revised Total Coliform Rule

Mar 11Resolved

Revised Total Coliform Rule

Feb 11Resolved

Revised Total Coliform Rule

Feb 11Resolved

Revised Total Coliform Rule

Feb 11Resolved

Revised Total Coliform Rule

Feb 11Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

How Does This Compare?

GREENWICH (06831) has 331 recorded violations, including 118 health-based. 15 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 GREENWICH, CT (06831)

What does this mean?

Violations Detail (331 total)

Lead & Copper Levels

Violation Timeline

2025(15)

2024(85)

2023(144)

2022(57)

2021(30)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code