Water testing in Washtenaw County, MI

Local water testing: Washtenaw County Health Department, Environmental Health. Price not posted.

Well water

Washtenaw County Health Department Drinking Water Testing

Price not posted

  • Bacteria

Purchase special sample bottles at the Environmental Health office (705 N Zeeb Road, Ann Arbor), collect the sample per staff instructions, and return the filled bottles to the office by 3 pm Monday-Friday so they can be picked up by the lab the same day.

Who can use it: Private well owners in Washtenaw County, Michigan (does not apply to municipal/city water customers, who should contact their water provider)

  • Washtenaw County Health Department, Western Service Center, Environmental Health, 705 N Zeeb Rd, Ann Arbor · 734-222-3800

Checked October 2, 2026. Report a change

See statewide tests and certified-lab lists for Michigan.

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