geomorphology and soils Staking the perimeter of action and staking of sensitive areas, maintenance of the marked areas, minimise earthworks for reuse thereof, location of facilities in areas of lower environmental condition, soil sealing in areas with possible accidental discharge of pollutants, control of the state of machinery to prevent discharges, waste management products, collection and treatment authorised by accidental spills that may occur and drafting a Manual of Good Practice to adopt appropriate measures to prevent soil contamination.