How to Contact the WSLH


Regular hours of operation: Monday-Friday, 7:45 a.m.-4:30 p.m. (CST)

After-Hours Emergency Pager: 608-263-3280


To contact the Wisconsin State Laboratory of Hygiene:


1. Call or email one of these Key WSLH Contacts 

2. Call one of our customer service representatives

Lab Name Phone

Clinical Laboratories

Newborn Screening





Environmental Laboratories 800-442-4618
Wisconsin Occupational Health Laboratory
(Industrial Hygiene)
WSLH Proficiency Testing 800-462-5261
After-Hours Emergency Pager: 608-263-3280

3. Write a letter

Attn: Customer Service
Wisconsin State Laboratory of Hygiene
2601 Agriculture Drive, PO Box 7904
Madison, WI 53718

4. Send a comment by completing the form below

Contact WSLH


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