Testing Locations » Wisconsin » Eau Claire WI » Emsi-Eau Claire – Emsi-Eau Claire – Drug Testing Only (Preferred) Emsi-Eau Claire – Emsi-Eau Claire – Drug Testing Only (Preferred) Emsi-Eau Claire – Emsi-Eau Claire – Drug Testing Only (Preferred)4252 Southtowne Dr. Ste C-2Eau Claire, WI 54701-2648 United States