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 officials of Sunnyside High School District and a United States Representative have expressed great concerns regarding the potential adverse health effects due to beryllium exposure in the vicinity of Brush Ceramic Products. The Arizona Department of Health Services was asked to determine whether beryllium released from Brush Ceramic’s plant poses a health threat to school children and employees, and residents in the vicinity of the facility.

This health consultation evaluates results of irrigation well samples collected by the Arizona Department of Environmental Quality in October 2003. Previous results obtained by the Blue Ridge Elementary School District in the summer of 2003 indicated trichloroethylene levels above the U.S. Environmental Protection Agency’s Maximum Contaminant Level. In addition, the most recent (2002) Annual Water Quality Report from the drinking water supplier, Arizona Water Company, was reviewed. A previous health consultation (Blue Ridge Elementary School, Lakeside, Navajo County, Arizona Health Consultation-April 30, 2003) reviewed environmental conditions at Blue Ridge Elementary School. Parents and school staff were concerned that environmental exposures were causing students to be absent from school. Drinking water quality reports, indoor air quality data, food safety, environmental sanitation records, student attendance rates, and the results of an annual parent satisfaction survey were evaluated in the consultation. Arizona Department of Health Services concluded that environmental conditions at Blue Ridge Elementary School posed no apparent public health hazard, and that attendance rates were similar to statewide attendance rates. As part of the 2003 health consultation, ADHS requested that the school district conduct water sampling from the on-site irrigation water wells for the school grounds. Those sampling results were not available when the 2003 health consultation was completed.

The purpose of this health consultation is to evaluate the air monitoring conducted by the Arizona Department of Environmental Quality at Mary McLeod Bethune School (Phoenix, AZ) and evaluate the potential impact on public health. The air monitoring data includes particulate matter and metals. The ADEQ’s primary objective of this air sampling is to provide an understanding of the hazardous air pollutants in the Phoenix area.

This report evaluates the potential exposure pathways associated with vermiculite concentrate processing activities at the Ari-Zonolite facility. The site is located in the near downtown area of Glendale, approximately ½ mile from the city hall, downtown shops, and other buildings. The former Ari-Zonolite facility received vermiculite from the Libby, Montana, mine. From 1951 to 1964, the site was leased the site to the Ari-Zonolite Company. Following the removal of the vermiculite concentrate processing equipment in 1964, several businesses have occupied the site. None of these businesses were involved in vermiculite processing activities. The last occupant of the former vermiculite processing building was an automotive restoration business, which vacated the site in 2002.

Water banking is one of Arizona's most important water management strategies, and its success depends on effective planning. This joint plan helps advance the objective, articulated in the intergovernmental agreement among CAP, ADWR and AWBA, to develop a coordinated and cooperative planning process that includes distribution and recovery of water stored by the AWBA.

The primary purpose of the Inventory is to identify storage capacity available to the Arizona Water Banking Authority to meet its water storage goals. Inclusion of a facility in the Inventory does not equate to a commitment by the AWBA to utilize any specific facility in the future. The AWBA will continue to determine annually which facilities will be used through the development of the Annual Plan of Operation. Conversely, not including a facility in the Inventory does not preclude the AWBA from utilizing that facility in a future Annual Plan. It does, however, preclude the facility from being utilized for interstate water storage, until such time as it is included in an updated Inventory.

The purpose of the Inventory is to determine whether storage facilities exist in this state to meet the water storage needs of the authority for the following ten years. The Authority approved the initial Inventory in 1997. Because additional storage facilities are continually being constructed, the Authority updates the Inventory at least once every five years. The Authority has been annually updating all new facilities that could be utilized by the Authority in its Annual Report. It is important to note that the primary purpose of the Inventory is to identify the capacity that is available for potential storage by the Authority to meet its objectives. The inclusion of a facility in the Inventory does not equate to a commitment by the Authority that the facility will be utilized for water banking purposes in the future. The Authority will continue to determine annually which facilities will be used through the development of an Annual Plan of Operation. Conversely, a facility that is not included in the Inventory may be utilized in a future Annual Plan of Operation.