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The net capacity of the landfill (volume available to place refuse and cover soil, excluding LCRS and final cover) is estimated to be approximately 130 million CY (JTD Table 5). 2.4 Closure Activities 2.4.1 Structure Removal Landfill structures that will be removed as part of the final closure of the site consist of the gatehouse (1.00 square feet). Structures now on site, but in the final refuse footprint, will be removed long before closure. These include: • Trailer south of gatehouse (not more than 1000 square feet) • Two temporary trailers northwest of gatehouse • Maintenance building (3,000 square feet) • Forennan's residence (1,500 square feet) Leachate production is expected to decrease after closure, so decommissioning of leachate control facilities is not anticipated. The landfill gas treatment facility is presently located within the future refuse footprint. This equipment will be moved to a location off the refuse footprint before closure. The flare station will be relocated before closure; therefore, this work is not included in closure costs. Components or structures scheduled for removal that have come in contact with either leachate or landfill gas will be disposed of either at Foothill Sanitary Landfill or another solid waste facility approved for receipt of such material. 2.4.2 Site Security Closure of the facility will be conducted in accordance with Title 27 requirements (Sections 21790(b)(8)(A), 21135(a -g)). • Signage will be placed in advance of closure to inform users of the impending closure and alternate disposal facilities. • Written notification of the closure of the landfill will also be issued in the form of newspaper advertisements. At closure, the perimeter- of the site will be ringed with either a three -strand barbwire fence or chain-link fence topped with barbed wire, or approved equivalent. All environmental monitoring and control systems will be within the fenced perimeter of the landfill. After closure, signs will be posted at the site entrance gate stating that the site is closed and entrance by unauthorized personnel is not allowed. Foothill Sanitary Landfill t3-4 Public Works/Solid Waste Preliminary CPCM Plan County of San Joaquin — Rev July 2010