Is Newtown, CT tap water safe?
The short answer
2 of the 4 utilities serving Newtown have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: 55 Sugar Street and Fairfield Hills.
Aquarion - Eastern Fairfield County, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 10.9 ppt, above EPA’s new limit, which takes effect in 2029.
The water from Aquarion - Eastern Fairfield County is soft on average, 51 mg/L (3 grains per gallon), ranging from 34 to 86 mg/L. How it compares.
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 Newtown’s ZIP codes, from EPA’s estimates.
- Open report
Aquarion - Eastern Fairfield County
Connecticut · serves 351,756 people · about 500 in Newtown
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 10.9 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft on average, 51 mg/L (3 grains per gallon), ranging from 34 to 86 mg/L.
No health-based violations since 2016
- Open report
55 Sugar Street
Connecticut · serves 158 people · under 100 in Newtown
2 results above the health goal. The worst: Uranium at 11.7 ppb, above the health goal.
3 health-based violations since 2016
- Open report
Aquarion - Newtown Regional
Connecticut · serves 6,054 people · under 100 in Newtown
2 results above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOA at 15.9 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Fairfield Hills
Connecticut · serves 2,610 people · lists Newtown among the places it serves
1 result above the health goal. The worst: Lead at 4.0 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Aquarion - Eastern Fairfield County’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: PFOA, PFOS
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, PFOS
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, PFOS
Water testing near Newtown
The 3 labs Connecticut certifies closest to Newtown, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
ALS Environmental - Newtown
Newtown, CT · under a mile
Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, radioactivity
Aquarion Water Trap Falls Water Quality Lab
Shelton, CT · about 11 miles
Certified for bacteria
South Norwalk Electric & Water Laboratory
Wilton, CT · about 14 miles
Certified for bacteria, nitrate, minerals and other inorganics
ZIP codes in Newtown
Which ZIP codes are in Newtown: 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 Newtown
Other towns in Fairfield County with a page of their own.
What to do next
- Read Aquarion - Eastern Fairfield County’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOARanked 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