excavating, benchings in sloping gr

excavating, benchings in sloping ground to receive filling, including disposal of excess material, blinding surfaces of filling with sand, gravel, ash or other fine material as approved, providing protective filling and removing on completion, removing of unsuitable and surplus filling materials off site, provision of samples, testing and submission of records, quality control, testing, preparation of as-built drawings and reporting. 3. Geotextile membrane 3.01 Geotextile membrane for blanket, peripheral trench and perforated pipe trenches is given as an item 3.02 The item is measured in square meters for the net area indicated in drawings and used in the construction, exclusive of overlaps, and extension required for anchorage, 3.03 Work and rate are deemed to include: Provision of specified filter material, Transportation and delivery, unrolling, cutting and placing, surface preparation for bedding, overlaps and extensions required for anchorage, removal and replacement of defective parts, quality control, testing, preparation of as-built drawings and reporting.