Is Norwich, CT tap water safe?
The short answer
1 of the 3 utilities serving Norwich has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Norwich Public Utilities.
Norwich Public Utilities, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 16.2 ppt, above EPA’s new limit, which takes effect in 2029.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Norwich’s ZIP codes, from EPA’s estimates.
- Open report
Norwich Public Utilities
Connecticut · serves 36,163 people · nearly all in Norwich
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 16.2 ppt, above EPA’s new limit, which takes effect in 2029.
9 health-based violations since 2016
- Open report
Sunny Waters Mobile Home Park
Connecticut · serves 303 people · about 250 in Norwich
2 results above the health goal. The worst: Lead at 2.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Aquarion - Pleasure Valley
Connecticut · serves 328 people · about 230 in Norwich
1 result above the health goal. The worst: Uranium at 4.7 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Norwich Public Utilities’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, PFOA
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA
Water testing near Norwich
The 3 labs Connecticut certifies closest to Norwich, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eastern Analytical Laboratory, Inc.
Old Saybrook, CT · about 23 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Microbac Laboratories, INC. - Dayville
Dayville, CT · about 24 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
CorrTech Corrosion Laboratory
Deep River, CT · about 24 miles
Certified for minerals and other inorganics
Which ZIP codes are in Norwich: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Connecticut DPH, approved commercial laboratories certified to test drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Norwich
Other towns in New London County with a page of their own.
What to do next
- Read Norwich Public Utilities’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water