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Water testing labs in Washtenaw County, MI

2 state-accredited water testing labs in Washtenaw County, MI.

2 certified labsUpdated October 2026Source: state lab accreditation records

Source: Michigan EGLE lists of certified drinking water laboratories (chemistry and microbiology), list dated Mar 11, 2026. Find a Water Test is independent and not affiliated with Michigan's Department of Environment, Great Lakes, and Energy (EGLE). Certification covers specific tests, so confirm the lab is certified for the ones you need: Verify a certification.

Cities in Washtenaw County:Ann Arbor

2 certified labs near Washtenaw County, MI

Mail-in labs that ship to Washtenaw County, MI

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Common questions

Where can I test well water near Washtenaw County, MI?

The state-accredited labs above serve Washtenaw County, MI. Many offer sample bottles you collect at home.

What should I test for near Washtenaw County, MI?

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