Removal of Topsoil and Organic Matter
(1) The topsoil and vegetable matter in all unexcavated areas under a building shall be removed.
(2) In localities where termite infestation is known to be a problem, all stumps, roots and other wood debris shall be removed from the soil to a depth of not less than 300 mm in unexcavated areas under a building.
(3) The bottom of every excavation shall be free of all organic material.
Article 126.96.36.199 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.