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Get your water tested in Rhode Island.

The labs Rhode Island certifies to test drinking water, from the state’s own list. A lab test is the only way to know what is in your own tap or well.

The short answer

Rhode Island’s list has 6 labs certified to test drinking water: 5 in Rhode Island and 1 in another state. The list says 6 take samples from homeowners.

Certification is test by test, so check that a lab is certified for what you want tested, and call first: it will say which bottles to use and how soon the sample has to arrive.

Labs in Rhode Island

5 labs, by city.

Labs in Rhode Island, certified by Rhode Island
LabCityCertified forTakes homeowners’ samples
Eurofins North KingstownWebsite: Eurofins North KingstownNorth KingstownNot listedYes
Rhode Island Department of Health, State Health LabWebsite: Rhode Island Department of Health, State Health LabProvidenceNot listedYes
Eurofins WarwickWebsite: Eurofins WarwickWarwickNot listedYes
Rhode Island Analytical LaboratoriesWebsite: Rhode Island Analytical LaboratoriesWarwickNot listedYes
New England Testing LaboratoryWebsite: New England Testing LaboratoryWest WarwickNot listedYes

Labs in other states

1 lab Rhode Island certifies outside the state, by state and city. Ask whether a lab takes samples by mail, and how fast they have to arrive.

Labs in other states, certified by Rhode Island
LabCityCertified forTakes homeowners’ samples
Microbac LaboratoryWebsite: Microbac LaboratoryDayville, CTNot listedYes

What to ask a lab to test

Source: RIDOH, certified drinking water testing labs, read Oct. 16, 2026. Labs are listed as the state lists them; what each is certified for is as far as the list says. Certifications change, so a lab’s own word is the latest.

A lab named for a water utility is listed apart. Distances on town pages are straight lines between ZIP code centers from the Census 2020 gazetteer. How labs are listed here.