Specifications include, but are not limited to: FOUNDATION – Remove all foundation walls and remove the basement floor. Fill all but the last one and one-half (1 ½) feet of the hole using material of which the formed aggregate does not exceed one and one-half (1 ½) inches. Fill the remaining one and one half (1 ½) feet as specified in the general specifications. An earthen crown shall be provided at the center of the demolition site to allow for proper site drainage. If the structure is constructed on a slab, remove the slab and remove all footings to one and one-half (1 ½) feet below grade. Fill all holes as specified in the general specifications.