Contamination of Water Supplies

Before any person is engaged on Work involving a risk to the purity of potable water supplies or deemed to involve such a risk by the Engineer, he shall be tested to indicate that he is not a carrier of typhoid or other water-borne disease and he shall be informed of the dangers of contamination. The Contractor shall notify the Engineer of any person who has been certified by a doctor as suffering from an illness associated with the looseness of the bowls, and no such person shall be employed on such Work until the employer’s medical advisor is satisfied that it is safe for him to be so employed.