Perturbation du sol
8 heures
8 heures
8 heures
8 heures
8 heures
8 heures
8 hours Any work operation or activity that results in a disturbance of the earth to a depth of 30cm or more
8 hours Any work operation or activity that results in a disturbance of the earth to a depth of 30cm or more
8 hours Any work operation or activity that results in a disturbance of the earth to a depth of 30cm or more
8 hours Any work operation or activity that results in a disturbance of the earth to a depth of 30cm or more
8 hours Any work operation or activity that results in a disturbance of the earth to a depth of 30cm or more