Blake Stark is the General Manager of the Water Treatment Chemicals and Filtration Media programs at NSF International. Stark has been a member of the NSF staff for 28 years, including 8 years as a product auditor on NSF's Field Services team. Stark began his career as a sanitarian with the Lenawee County Health Department in southern Michigan. He holds a BA degree in Geology from Adrian College and an MBA from Walsh College (both in Michigan).