MI · 83 COUNTIES
Certified labs and testing options for private well owners in Michigan.
Private well owners in Michigan are responsible for the safety of their own water. The EPA recommends testing annually for coliform bacteria and nitrate, and whenever a change in water quality is noticed. For contaminants common in Michigan — such as Arsenic, Fluoride, Uranium — additional targeted testing is advisable.
Mail-in certified lab testing. Results in 5–7 business days. Best for comprehensive private well testing.
Order a Tap Score Test →Contact your state drinking water program for a list of certified labs in Michigan.
Based on Michigan groundwater data, the most common contaminants in private wells are:
Browse the county directory to see specific contaminant data for your area.