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0 • <br /> A3.0 PERMITS AND INSPECTIONS <br /> According to the San Joaquin County Department of Public Health, Environmental <br /> Health Services, Underground Tank Unit (County), a permit to close underground <br /> storage tank storing hazardous materials will be required for the UST removal. In <br /> addition, an excavation permit will also be required by the City of Tracy. CKY will <br /> obtain the permits before the field work starts and append them in the tank closure <br /> report. Further, CKY will provide the Corps of Engineers representative, the airport <br /> manager, and the County a copy of project schedule and notify them prior to <br /> initiating tank removal activities. <br /> A4.0 APPROACH <br /> The work associated with this delivery order consists of eight tasks, as described <br /> below. Details of the removal procedures are included in the QC Program of the <br /> GMP. <br /> A4.1 Task 1 - Site Reconnaissance and Mobilization <br /> This task will start at the conclusion of the pre-construction conference on site. <br /> During the site reconnaissance areas will be identified for equipment storage; <br /> • excavated soil stockpiles; UST, piping, and debris storage; and decontamination. <br /> Additionally, the UST and associated piping at the site will be located using <br /> electronic locating equipment and by correlating site reconnaissance and the <br /> supplied as-builts drawings of the UST area. Tank and piping location will be <br /> evaluated to determine what measures, if any, are to taken to prevent damage to <br /> existing utilities. <br /> Underground Services Alert (USA) will be notified at least 48 hours in advance to <br /> check utilities. The tank location, dimensions, and ancillary equipment will be <br /> identified by using marking paint. Any underground utilities not associated with the <br /> tank will be identified by USA using marking paint of a different color. <br /> Mobilization of field equipment and supplies will be done following the site <br /> reconnaissance. <br /> A4.2 Task 2 - Exposure of Tank and Piping <br /> Before excavation starts, the surface area above the tank will be cleared of asphalt <br /> pavement and any surface debris. The tank will be exposed using a track-mounted <br /> excavator or wheeled backhoe until sufficient area is available for purging and <br /> inerting the tank. All piping will be similarly uncovered until sufficiently exposed to <br /> . allow removal of the piping. <br /> A-2 <br />