4(9)A person to whom an order is directed and such other persons, materials and equipment as that person considers necessary may enter upon any area, land, place or premises in order to comply with the order and may take all further action reasonably necessary to implement the directions contained in the order, and the owner or person in charge of the area, land, place or premises and any employees or agents of the owner or person in charge shall immediately permit those persons, materials and equipment to have all access reasonably necessary in order to implement fully and effectively the directions contained in the order.