NADP Transition News

The NADP Program Office (PO) and Central Analytical Lab (CAL) have moved from the University of Illinois (U of I) to their new home at the University of Wisconsin's State Laboratory of Hygiene (WSLH) in Madison, WI. The Program Office moved to the WSLH on March 1, 2018 and the CAL followed on June 1, 2018.

The mercury analytical lab (HAL) will move from Eurofins Frontier Global Sciences, Inc., Seattle, Washington. to the WSLH on June 1, 2019.

Address Change for All Sample Receiving Coming Soon!

Starting in June 2019 the Wisconsin State Laboratory of Hygiene (WSLH) will be taking on the Mercury Deposition Network (MDN) analytical and site support services. As a result, we will be moving sample receiving for all NADP networks to our Henry Mall location as of June 1st, 2019. This means all NTN, AIRMoN, AMoN, and MDN samples should be sent to the Henry Mall address. This move will help us to streamline shipping and receiving to better serve all of the networks. The used supplies for the NTN and AIRMoN address will remain the same (Henry Mall).

All samples removed on Tuesday June 4th and beyond will be shipped to the Henry Mall address:

NADP Sample Receiving
WI State Laboratory of Hygiene
465 Henry Mall
Madison, WI 53706
Tel. 800-952-7353

If you receive pre-paid labels from your site sponsor, they have been notified of the upcoming change and will be sending you pre-paid labels with the new address.

More Information

CAL Readiness Verification Report

Frequently Asked Questions for HAL Transition
(Updated 4/24/2019)

Program Office Contact information

General Frequently Asked Questions
(Updated 2/21/2018)

Frequently Asked Questions for site operations
(Updated 4/24/2018)

Updated Sample Shipping Instructions (5/09/2018)

Transition update emails

More Questions?

Please contact NADP at the WSLH at

The NADP web address on March 1st and after will be