Is Stonington, CT tap water safe?
The short answer
None of the 3 utilities serving Stonington has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records.
Aquarion - Mystic, which serves the most people here, has nothing above a health goal in EPA’s and CDC’s records. That data covers what its report lists, not everything.
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 Stonington’s ZIP codes, from EPA’s estimates.
- Open report
Aquarion - Mystic
Connecticut · serves 10,788 people · under 100 in Stonington
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Aquarion - Arlington Acres
Connecticut · serves 392 people · under 100 in Stonington
2 results above the health goal. The worst: Lead at 0.8 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ctwc - Shoreline Region - Masons Island
Connecticut · serves 445 people · lists Stonington among the places it serves
Nothing in its records is above a health goal.
No health-based violations since 2016
Water testing near Stonington
The 3 labs Connecticut certifies closest to Stonington, 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 25 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Eurofins Rhode Island
North Kingstown, RI · about 27 miles
Certified for nitrate, metals, minerals and other inorganics
New England Testing Laboratory, Inc.
West Warwick, RI · about 29 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
ZIP codes in Stonington
Which ZIP codes are in Stonington: 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 Stonington
Other towns in New London County with a page of their own.
What to do next
- Read Aquarion - Mystic’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water