The location of the borrow areas are shown on the Approved Drawings. The Contractor shall propose excavation methods and material handling procedures for the Engineer’s approval so as to ensure that the proposed fill materials are not contaminated by organic material or other unsuitable material.
Excavation shall be as carried out as detailed in the Contractor’s submitted procedures approved by the Engineer.
Should large volumes of a particular material type be identified in the borrow area, remote from and clearly separate from other material types and in a location that could facilitate scraper operation, a temporary change in operation may be approved by the Engineer.
The Contractor shall work the borrow area in a logical and orderly manner so as to minimise wastage and to achieve the surface elevations, grades and levels shown on the Approved Drawings or otherwise specified or instructed by the Engineer for the borrow area.
The Contractor shall undertake continuous visual inspections of materials and shall immediately report to the Engineer any visual changes, slope movement or groundwater that affects the borrow source.
Definitions in this Section