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Water testing labs in St. Croix County, WI

2 state-accredited water testing labs in St. Croix County, WI.

2 certified labsUpdated October 2026Source: state lab accreditation records

Source: Wisconsin DNR list of labs certified for coliform bacteria testing, list dated Oct 28, 2026. Find a Water Test is independent and not affiliated with the Wisconsin Department of Natural Resources. Certification covers specific tests, so confirm the lab is certified for the ones you need: Verify a certification.

2 certified labs near St. Croix County, WI

CH

City of Hudson

31 Canary Way, Hudson, WI

State-accredited labDrinking waterBacteria testingPublic or utility lab

Public water system lab. Many don't accept private well samples, so call first.

(715) 386-4760Directions
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Mail-in labs that ship to St. Croix County, WI

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Well water guides

What to test forBad resultsBuying a home

Common questions

Where can I test well water near St. Croix County, WI?

The state-accredited labs above serve St. Croix County, WI. Many offer sample bottles you collect at home.

What should I test for near St. Croix County, WI?

Start with total coliform bacteria and nitrates, then ask your county health department about local concerns.