To evaluate whether VOCs are migrating out of the landfills into the vadose zone, a soil vapor survey of the soil beneath the landfill bases was performed. Permanent vapor monitoring probes were installed and then sampled twice for VOCs. Groundwater beneath the landfills has been impactd by VOCs, namely TCE, DCE, and toluene.

This Additional Site Characterization Work Plan presents a strategy for collecting site characterization information at the closed Maricopa County Cave Creek Landfill to support ongoing remedial action planning for trichloroethene-impacted groundwater underlying the site. The Work Plan supplements previous remedial investigation work plans prepared to characterize the nature and extent of site contamination.

The Graham County, Safford, Thatcher, Pima Small Area Transportation Study was initiated by Graham County, in conjunction with the Arizona Department of Transportation, to develop a countywide, long-range multimodal transportation plan for this growing rural Arizona community. The project sponsors selected the PB Americas team to conduct this study under the direction of a Technical Advisory Committee, which included representatives from Graham County, City of Safford, Town of Thatcher, Town of Pima, Southeastern Arizona Governments Organization, and ADOT.

In 1992, Graham County conducted a transportation study for the Gila Valley Region. This study prepared a long-range transportation plan and a transportation improvement program. Many of the improvements have been completed. The purpose of this study is to update the 1992 transportation plan and to address the current issues within the area.

This pamphlet describes CyberPort as multinational in its approach, considering the impacts of cross-border traffic at the local, state, and regional levels. The goal of CyberPort in Arizona is to increase the capacity of Nogales, San Luis and Douglas to serve as safe, secure and efficient gateways between the United States and Mexico. Nogales, as Arizona’s primary commercial port-of-entry, is naturally positioned to serve as the port of choice for western U.S.-Mexico trade.

The Nogales CyberPort Project began in the Spring of 2002 amid dramatic changes to the safety and security of U.S. borders. Throughout the following year, extraordinary change was experienced in policy and practice regarding the treatment of the border at the local, state and federal levels. While the movement toward a more efficient and effective border crossing environment has been underway in Arizona and the U.S. for a number of years, there is perhaps a no more appropriate time to undertake the effort to define and implement a CyberPort than right now.

The Nogales CyberPort Project began in the Spring of 2002 amid dramatic changes to the safety and security of U.S. borders. Throughout the following year, extraordinary change was experienced in policy and practice regarding the treatment of the border at the local, state and federal levels. While the movement toward a more efficient and effective border crossing environment has been underway in Arizona and the U.S. for a number of years, there is perhaps a no more appropriate time to undertake the effort to define and implement a CyberPort than right now.