The W.R. Grace facility in Phoenix, Arizona, received vermiculite concentrate from the Libby, Montana, vermiculite mine. W.R. Grace Company has owned and operated the Arizona site since 1964. In 1964 W.R. Grace purchased the company that had previously occupied the site and, following the relocation of its vermiculite exfoliation furnace from Glendale, Arizona, began processing vermiculite concentrate and marketing it under the Zonolite® brand. The objective of this health consultation is to evaluate exposure pathways and potential health effects in those persons who, between 1964 and 2002, may have been exposed to Libby asbestos as a result of vermiculite concentrate processing activities and waste materials from the W.R. Grace exfoliation facility in Phoenix.

Tourism is one of 12 industry clusters widely considered to be driving the Arizona economy according to the Governor’s Strategic Partnership for Economic Development (GSPED). The term "cluster" refers to a geographic concentration of interdependent companies, suppliers, products, labor pool, and institutions that together constitute an important competitive advantage for a region. In northern Arizona, tourism ranks as the predominant industry cluster. This paper provides a profile of the tourism cluster in Coconino County, with special focus on the Flagstaff area. It examines the cluster’s composition, relative size and importance to the regional economy. It addresses the cluster’s dynamics and requirements for growth. It reviews important national and worldwide trends affecting tourism in Arizona, as well as the special characteristics of gateway communities. And, finally, it presents a menu of actions to choose from for strengthening the cluster in both Flagstaff and Coconino County.