Skip to main content
University of Wisconsin Crest

WSLH Proficiency Testing

Wisconsin State Laboratory of Hygiene

Contact Us


Get in touch WITH WSLH PT

Want to get in touch with WSLH Proficiency Testing?
We would love to hear from you. Here’s how you can reach us: 

Office Hours

Monday through Friday
8:00AM to 4:30PM (CT-Chicago)
Closed on all major holidays

Direct Contact

Phone: (800) 462-5261

Mailing Address

WSLH Proficiency Testing
2601 Agriculture Drive 
Room 233
Madison, WI 53718

Stay Connected