Norwich Public Utilities

Published drinking-water records and contacts for Norwich Public Utilities. System CT1040011. Review sources and dates; not a real-time water assessment.

System ID: CT1040011
State or territory: CT
Published population served: 36163
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 300 — 2023-05-23 – 2024-03-07
Lead and copper monitoring summaries: 42 — 2002-01-01 – 2025-12-31

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2024-03-07	Deep River Water Treatment / 3
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-03-07	Deep River Water Treatment / 3
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-03-07	Stony Brook Water Treatment / 3
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-03-07	Stony Brook Water Treatment / 3
ADONA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-03-07	Deep River Water Treatment / 3
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-03-07	Deep River Water Treatment / 3
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-03-07	Stony Brook Water Treatment / 3
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-03-07	Deep River Water Treatment / 3
PFBA	< 0.005 µg/L	0.005 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFBS	< 0.003 µg/L	0.003 µg/L	2024-03-07	Deep River Water Treatment / 3
PFDA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Deep River Water Treatment / 3
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-03-07	Deep River Water Treatment / 3
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFNA	< 0.004 µg/L	0.004 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFOA	< 0.004 µg/L	0.004 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFOS	< 0.004 µg/L	0.004 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-03-07	Stony Brook Water Treatment / 3
PFTA	< 0.008 µg/L	0.008 µg/L	2024-03-07	Deep River Water Treatment / 3
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-03-07	Deep River Water Treatment / 3
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-03-07	Stony Brook Water Treatment / 3
lithium	< 9 µg/L	9 µg/L	2024-03-07	Stony Brook Water Treatment / 3

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0 mg/L	2025-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0.0015 mg/L	2025-01-01 – 2025-06-30	2026Q3
Lead (PB90)	0 mg/L	2024-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0.0011 mg/L	2024-07-01 – 2024-12-31	2026Q3
Lead (PB90)	0 mg/L	2024-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0 mg/L	2024-01-01 – 2024-06-30	2026Q3
Lead (PB90)	0 mg/L	2023-07-01 – 2023-12-31	2026Q3

Published compliance history

9 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report	2020-07-01 – —	Resolved	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2018-07-01 – 2018-09-30	Resolved	Yes	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2018-04-01 – 2018-06-30	Resolved	Yes	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2018-02-11 – 2018-05-10	Archived	Yes	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2018-02-11 – 2018-05-10	Archived	Yes	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2017-10-01 – 2017-12-31	Resolved	Yes	2026Q3
Consumer Confidence Rule / Consumer Confidence Report Inadequate Reporting	2017-08-10 – —	Resolved	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average	2017-07-01 – 2017-09-30	Resolved	Yes	2026Q3
Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report	2017-07-01 – —	Resolved	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17

Administrative contact (EPA filing)

Brining, Jeff: 860-213-3120

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records