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.

The Phoenix TRUCE Project is modeled after the Chicago CeaseFire program, and as such has adopted a public health approach in responding to violence in the community. TRUCE emphasizes the use of outreach staff embedded in the community who identify community members who are at imminent risk of being either a victim or perpetrator of violence, particularly gun violence. The project is a data-driven, and its core components include, community mobilization and youth outreach. Each of its components addresses a different facet of the violence problem with the goal of preventing shootings.