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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 SANTA ANA, CA BID & PERMIT SET SITE CLEARING 311000 - 4 PART 3 - EXECUTION 3.1 SITE CLEARING A. Remove trees, shrubs, grass, and other vegetation, improvements, or obstructions, as required, to permit installation of new construction. Remove similar items elsewhere on site or premises as specifically indicated. Removal includes digging out and off-site disposal of stumps and roots. 1. Cut minor roots and branches of trees indicated to remain in a clean and careful man- ner where such roots and branches obstruct installation of new construction. 2. Unless specifically designated to remain, strip the upper two inches (minimum) of soil containing vegetation and root growth within the Limits of Work shown on the Draw- ings. B. Removal of Improvements: Remove existing above-grade and below-grade improvements as indicated and as necessary to facilitate new construction. 1. Abandonment or removal of certain underground pipe or conduits may be indicated on mechanical or electrical drawings. Removing abandoned underground piping or conduits interfering with construction is included under this Section. 2. Contractor shall refer to the project’s Asbestos Abatement Report for removal of asbestos containing materials and other potential hazardous materials. C. Clearing and Grubbing: Clear site of trees, shrubs, and other vegetation, except for those indicated to be left standing. 1. Completely remove stumps, roots, and other debris protruding through ground surface. 2. Use only hand methods for grubbing inside drip line of trees indicated to remain. 3. Fill depressions caused by clearing and grubbing operations with satisfactory soil ma- terial, unless further excavation or earthwork is indicated. a. Place fill material in horizontal layers not exceeding 6 inches loose depth, and thoroughly compact each layer and compact in accordance with the requirements specified in Section 31 “Earthwork” to make the new surface conform with the existing adjacent surface of the ground. 4. Trim trees, designated to be left standing within the cleared areas, of dead branches 1- 1/2 inches or more in diameter; and trim all branches to heights and in a manner as in- dicated. Neatly cut limbs and branches to be trimmed close to the bole of the tree or main branches. Paint cuts more than 1-1/4 inches in diameter with specified tree- wound paint. D. Topsoil is defined as friable clay loam surface soil found in a depth of not less than 4 inches. Satisfactory topsoil is reasonably free of subsoil, clay lumps, stones, and other objects over 2 inches in diameter, and without weeds, roots, and other objectionable material. 1. Strip topsoil to whatever depths encountered in a manner to prevent intermingling with underlying subsoil or other objectionable material. Remove heavy growths of grass from areas before stripping. a. Where existing trees are indicated to remain, leave existing topsoil in place with- in drip lines to prevent damage to root system.