The Arizona Department of Transportation was authorized in 1996 to administer a State Infrastructure Bank under a cooperative agreement with the Federal Highway Administration. The Highway Expansion and Extension Loan Program (HELP) was established. The financial statements present only the funds comprising the Fund and are not intended to present fairly the financial position or results of operations of the Department.

The HELP program is meant to be a funding tool to accelerate needed highway projects throughout the state. Board Funding Obligations are an important part of the HELP capitalization and the current stress on the State's General Fund has impacted our ability to use BFOs as a funding source for new loans. Though $140 million of BFOs are authorized by statute to capitalize the HELP, the State Treasurer was required to call all outstanding BFOs in April 2009. Consequently, the State Transportation Board and the Department have suspended the HELP program given the uncertainty of a long term funding source.

In March 2004, the U.S. Environmental Protection Agency requested information on efforts to monitor and protect children from exposure to lead in drinking water at schools. The Arizona Department of Health Services reviewed the state lead poisoning registry, and analyzed drinking water samples from 45 randomly selected schools. The Office of Environmental Health provided this consultation to help document our findings and supplement our response to the EPA. This work was also undertaken to help provide useful information should hazardous waste sites be discovered in the future near these schools. We also wanted to apply the ATSDR health assessment process in support of state and federal efforts to protect the health of children.

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.

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.