Every employer contemplated in subsection (1) shall keep the health and safety representatives designated for their workplaces or sections of the workplaces, informed of the actions taken under subsection (1) in their respective workplaces or sections thereof and of the results of such actions: Provided that individual results of biological monitoring and medical surveillance relating to the work of the employee, shall only with the written consent of such employee be made available to any person other than an inspector, the employer or the employee concerned.