Water Quality in SHELTON, CT (06484)

EPA violation data for public water systems serving ZIP code 06484.

149

Total Violations

Health-Based

144

Monitoring / Reporting

149

Resolved

What does this mean?

149 of 149 violations have been resolved. 5 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 144 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: 123 Population served: 701,109

Violations Detail (149 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Chlorite	Monitoring	N/A	N/A	May 31, 2024	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	May 31, 2024	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	May 31, 2024	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	May 31, 2024	Resolved	Anemia; nervous system effects in infants and young children
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Cardiovascular system or reproductive problems
Endrin	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfone	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfone	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfone	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Aldicarb sulfoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 16, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 16, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 16, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 16, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 16, 2023	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
E. COLI	Monitoring	0	N/A	Jun 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Mar 25, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 25, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 25, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 25, 2022	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	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2021	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
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
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
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
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
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
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
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
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
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
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
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 21, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 21, 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	Jun 30, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 15, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 15, 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

2024(4)

Chlorite

May 31Resolved

Chlorite

May 31Resolved

Chlorite

May 31Resolved

Chlorite

May 31Resolved

2023(98)

ETHYLENE DIBROMIDE

Dec 31Resolved

2,4-D

Dec 31Resolved

ETHYLENE DIBROMIDE

Dec 31Resolved

Picloram

Dec 31Resolved

Picloram

Dec 31Resolved

Picloram

Dec 31Resolved

Glyphosate

Dec 31Resolved

Glyphosate

Dec 31Resolved

Glyphosate

Dec 31Resolved

Aldicarb

Dec 31Resolved

Aldicarb

Dec 31Resolved

Aldicarb

Dec 31Resolved

Hexachlorocyclopentadiene

Dec 31Resolved

Hexachlorocyclopentadiene

Dec 31Resolved

Hexachlorocyclopentadiene

Dec 31Resolved

2,4,5-TP

Dec 31Resolved

2,4,5-TP

Dec 31Resolved

2,4,5-TP

Dec 31Resolved

Diquat

Dec 31Resolved

Diquat

Dec 31Resolved

Diquat

Dec 31Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Dec 31Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Dec 31Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Dec 31Resolved

ETHYLENE DIBROMIDE

Dec 31Resolved

Chlordane

Dec 31Resolved

Chlordane

Dec 31Resolved

BHC-GAMMA

Dec 31Resolved

BHC-GAMMA

Dec 31Resolved

BHC-GAMMA

Dec 31Resolved

Atrazine

Dec 31Resolved

Atrazine

Dec 31Resolved

Atrazine

Dec 31Resolved

Endrin

Dec 31Resolved

Endrin

Dec 31Resolved

Endrin

Dec 31Resolved

Methoxychlor

Dec 31Resolved

Methoxychlor

Dec 31Resolved

Methoxychlor

Dec 31Resolved

Toxaphene

Dec 31Resolved

Toxaphene

Dec 31Resolved

Toxaphene

Dec 31Resolved

Dalapon

Dec 31Resolved

Dalapon

Dec 31Resolved

Dalapon

Dec 31Resolved

Di(2-ethylhexyl) adipate

Dec 31Resolved

Di(2-ethylhexyl) adipate

Dec 31Resolved

Di(2-ethylhexyl) adipate

Dec 31Resolved

OXAMYL

Dec 31Resolved

OXAMYL

Dec 31Resolved

OXAMYL

Dec 31Resolved

Simazine

Dec 31Resolved

Simazine

Dec 31Resolved

Simazine

Dec 31Resolved

Di(2-ethylhexyl) phthalate

Dec 31Resolved

Di(2-ethylhexyl) phthalate

Dec 31Resolved

Di(2-ethylhexyl) phthalate

Dec 31Resolved

Dinoseb

Dec 31Resolved

Dinoseb

Dec 31Resolved

Dinoseb

Dec 31Resolved

Aldicarb sulfone

Dec 31Resolved

Aldicarb sulfone

Dec 31Resolved

Aldicarb sulfone

Dec 31Resolved

Carbofuran

Dec 31Resolved

Carbofuran

Dec 31Resolved

Carbofuran

Dec 31Resolved

Heptachlor epoxide

Dec 31Resolved

Heptachlor epoxide

Dec 31Resolved

Heptachlor epoxide

Dec 31Resolved

2,4-D

Dec 31Resolved

LASSO

Dec 31Resolved

2,4-D

Dec 31Resolved

HEXACHLOROBENZENE

Dec 31Resolved

HEXACHLOROBENZENE

Dec 31Resolved

HEXACHLOROBENZENE

Dec 31Resolved

Benzo(a)pyrene

Dec 31Resolved

Benzo(a)pyrene

Dec 31Resolved

Benzo(a)pyrene

Dec 31Resolved

Pentachlorophenol

Dec 31Resolved

Pentachlorophenol

Dec 31Resolved

Pentachlorophenol

Dec 31Resolved

Total Polychlorinated Biphenyls (PCB)

Dec 31Resolved

Total Polychlorinated Biphenyls (PCB)

Dec 31Resolved

Total Polychlorinated Biphenyls (PCB)

Dec 31Resolved

Heptachlor

Dec 31Resolved

Heptachlor

Dec 31Resolved

Heptachlor

Dec 31Resolved

Aldicarb sulfoxide

Dec 31Resolved

Aldicarb sulfoxide

Dec 31Resolved

Aldicarb sulfoxide

Dec 31Resolved

LASSO

Dec 31Resolved

LASSO

Dec 31Resolved

Chlordane

Dec 31Resolved

Revised Total Coliform Rule

Nov 16Resolved

Revised Total Coliform Rule

Nov 16Resolved

Revised Total Coliform Rule

Nov 16Resolved

Revised Total Coliform Rule

Nov 16Resolved

Revised Total Coliform Rule

Nov 16Resolved

How Does This Compare?

SHELTON (06484) has 149 recorded violations, including 5 health-based. All violations have been resolved, which is a positive sign for current water quality. 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 SHELTON, CT (06484)

What does this mean?

Violations Detail (149 total)

Lead & Copper Levels

Violation Timeline

2024(4)

2023(98)

2022(8)

2021(39)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code