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Hazardous Materials <br />Alternative 2, Option A (Preferred Alternative) and Option B <br />Documented Release Sites <br />' Petroleum hydrocarbon soil contamination throughout the top several feet <br />of the unpaved area on the Chiquita (formerly Agripac) property <br />Potential Release Sites <br />' Auto body shop (AutoCraft) <br />Areas of concern identified on the Alternative 2, option A site include petroleum hydrocarbon <br />contamination throughout the top several feet of soil in much of the unpaved area, including the <br />area beneath a tanker truck used for diesel refueling. The AutoCraft property is also an area of <br />concern because of its historical use of hazardous materials. Access to the property was not <br />granted during the phase I and phase II site assessments conducted in 2000, and no site <br />inspection of the building interior was performed. <br />Evidence of potential asbestos-containing materials, PCB-containing fluorescent light ballasts <br />and electrical transformer equipment, and lead-based paint has been identified in portions of the <br />structures. <br />No-Action Alternative <br />Under the no-action alternative, there would be no site excavation, grading, demolition, or <br />.construction activity associated with the proposed courthouse project. Hazardous materials <br />present in soils, ground water, or existing structures would remain in place until site remediation <br />or redevelopment is undertaken in the future by others. <br />Potential Mitigation Measures <br />Prior to construction, a formalized plan for removal, treatment, or other management of <br />contaminated soil and ground water management would be required. Measures would be <br />implemented to minimize exposure through both airborne and direct contact routes. Increased <br />construction-zone setbacks, additional barriers to public access, and expeditious removal of <br />contaminated materials may be required to limit contact by the public. <br />The soil and ground water management plan would specify methods and procedures for <br />stockpiling, transportation, disposal, and treatment of contaminated soil, as well as ground water <br />removal, storage, treatment, discharge (to sewer), transport, and disposal. Most encounters with <br />hazardous materials would involve petroleum products to be managed using standard approaches <br />in accordance with the policies, procedures, and requirements of the Oregon Department of <br />Environmental Quality. Disposal and treatment facilities for petroleum-contaminated soils are <br />i, - regulated by county public health departments and exist at various locations throughout the state. <br />Hazardous waste that may be generated as part of this project would be transported to permitted <br />New Federal Courthouse 103 Final EIS <br />