The contract involves the replacement of the fuel system at the Kennebunk travel plazas, including the removal and replacement of underground gas and diesel storage tanks, as well as the installation of temporary gas and diesel dispensers. The project requires the contractor to perform various tasks, including excavation, demolition, and construction, while ensuring compliance with applicable laws and regulations. The contract documents provide detailed specifications and requirements for the project, including the materials and equipment to be used, the procedures to be followed, and the standards to be met. The contract also includes provisions for payment, warranties, and guarantees.