How to Contact the Wisconsin State Laboratory of Hygiene.
There are a number of ways which you can contact the Wisconsin State Laboratory of Hygiene.
1. You can call or email one of these Key WSLH Contacts (PDF).
2. You can call one of our customer service representatives:
|Wisconsin Occupational Health Laboratory:
|WSLH Proficiency Testing
3. You can write us a letter.
Attn: Customer Service
Wisconsin State Laboratory of Hygiene
465 Henry Mall
Madison, WI 53706
4. You can send us a comment by completing the form below.