States ›Connecticut ›Fairfield County ›Newtown

Newtown, CT Tap Water Quality 2026

Water quality report for Newtown, CT — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Newtown's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Aquarion-Eastern Fairfield County PWSID: CT0150011 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS was detected below the federal limit.

A

Newtown earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS detected below the federal limit
152 violations since 2015, 0 health-based
No violations currently open
Newtown's lead level vs. all Connecticut community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Connecticut utilities
Population Served
9528
~108501 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
152 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2021–2023 Archived
Barium MONITORING AND REPORTING — 2 mg/L 2021–2023 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2021–2023 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2021–2023 Archived
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2021–2023 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2021–2023 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2021–2023 Archived
Nickel MONITORING AND REPORTING — — 2021–2023 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2021–2023 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2021–2023 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2021–2023 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2021–2023 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2021–2023 Archived
Barium MONITORING AND REPORTING — 2 mg/L 2021–2023 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2021–2023 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2021–2023 Archived
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2021–2023 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2021–2023 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2021–2023 Archived
Nickel MONITORING AND REPORTING — — 2021–2023 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2021–2023 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2021–2023 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2021–2023 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2021–2023 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Archived
Consumer Confidence Rule OTHER — — 2018 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2016–2018 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2016–2018 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2016–2018 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2016–2018 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2016–2018 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2016–2018 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2016–2018 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Aldicarb MONITORING AND REPORTING — — 2016–2018 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
LASSO MONITORING AND REPORTING — — 2016–2018 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2016–2018 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2016–2018 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2016–2018 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2016–2018 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2016–2018 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2016–2018 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2016–2018 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2016–2018 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2016–2018 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2016–2018 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2016–2018 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Aldicarb MONITORING AND REPORTING — — 2016–2018 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
LASSO MONITORING AND REPORTING — — 2016–2018 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2016–2018 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2016–2018 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2016–2018 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2016–2018 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2016–2018 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2016–2018 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2016–2018 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2016–2018 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2016–2018 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2016–2018 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2016–2018 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Aldicarb MONITORING AND REPORTING — — 2016–2018 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
LASSO MONITORING AND REPORTING — — 2016–2018 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2016–2018 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2016–2018 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2016–2018 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2016–2018 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2016–2018 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2016–2018 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2016–2018 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2016–2018 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2016–2018 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2016–2018 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2016–2018 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2016–2018 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2016–2018 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2016–2018 Resolved
Aldicarb MONITORING AND REPORTING — — 2016–2018 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2016–2018 Resolved
LASSO MONITORING AND REPORTING — — 2016–2018 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2016–2018 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2016–2018 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2016–2018 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2016–2018 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2016–2018 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2016–2018 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2016–2018 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2016–2018 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

152 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Aquarion-Eastern Fairfield County
PWSID CT0150011
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 9,528
Service connections 108,501
Systems serving this area 6
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Newtown tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Newtown water have PFAS? ▼
PFAS was detected but stayed below the federal limit.
Who supplies water to Newtown? ▼
Aquarion-Eastern Fairfield County (PWSID CT0150011), one of 6 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-06-05. No significant deficiencies were recorded.

What Should Newtown Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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