15.—(1) If the Department considers that a private supply is a potential risk to human health it must promptly take appropriate steps to ensure that people likely to consume water from it—
(a)are informed that the supply constitutes a potential risk to human health;
(b)where possible, are informed of the degree of the potential risk; and
(c)are given advice on appropriate measures to allow them to minimise any such risk.
(2) The Department must notify the Public Health Agency and the District Council for the district in which the private supply is situated regarding the steps taken under paragraph (1).