Specifications include, but are not limited to: Remove the existing skirting to have access underneath the modular building. Using leveling equipment instruments, such as water level and laser to identify the horizontal and vertical, uneven, unlevel irregular and unstable areas. Inspect and re-level all vertical column structural support materials, that support the floor system, metal frame underneath the modular buildings. Unloosen the vertical column structural support materials. Remove all damaged vertical column structural support materials. Install new vertical column structural support materials as required. Remove and dispose all damage vertical columns structural support debris materials, at an approved Environmental Protection Agency, (EPA) landfill off the Navajo Reservation.