Drinking Water Testing

If you have municipal or "city" water, please contact your municipal water provider first if you have questions, concerns, or problems with your water. If you receive a water bill, you likely have municipal water.

Water Quality Tests

List of common drinking water tests and recommendations (PDF) for homes in Washtenaw County.

List of all water quality tests and fees (PDF) available at the Environmental Health Division office.

To test your water, you will need to get a special sampling bottle from our Environmental Health Division office, located at: 

Washtenaw County Western Service Center
705 N Zeeb Road
Ann Arbor, MI 48103

Proper Sampling Procedures

Environmental Health staff will instruct you on proper sampling procedures. Once the sample has been taken, you must return the bottle to the Western Service Center before 3:00pm, Monday-Friday. Keep in mind that turn-around times for test results vary.

Note: There is an additional fee - in addition to the fee listed for the water test - if the sample is collected by Environmental Health personnel.

Other Water Tests

The Michigan Department of Environment, Great Lakes & Energy Laboratory also offers testing services and resources, including a list of certified laboratories who may offer additional testing services not provided by Washtenaw County.