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Is South Wilton, CT tap water safe?

2 utilities serve South Wilton, by EPA’s records. Here is what EPA’s and CDC’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

1 of the 2 utilities serving South Wilton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: South Norwalk Electric & Water.

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 South Wilton’s ZIP codes, from EPA’s estimates.

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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Every claim, and more filters, in the full report

Water testing near South Wilton

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Connecticut certifies.

The 3 labs Connecticut certifies closest to South Wilton, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • South Norwalk Electric & Water Laboratory

    Wilton, CT · under a mile

    Certified for bacteria, nitrate, minerals and other inorganics

    (203) 866-3366 ext. 259

  • Stamford Health Department Laboratory

    Stamford, CT · about 12 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (203) 977-4378

  • ALS Environmental - Newtown

    Newtown, CT · about 14 miles

    Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, radioactivity

    (203) 270-9973

All 86 certified labs for Connecticut

ZIP codes in South Wilton

Which ZIP codes are in South Wilton: 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 South Wilton

Other towns in Fairfield County with a page of their own.

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