153.—(1) Each sewerage undertaker shall, in such form and manner and with such frequency as the Authority may direct, take steps to inform its customers of—
(a)the standards of overall performance established under Article 150(1)(b) which are applicable to that undertaker; and
(b)that undertaker’s level of performance as respects each of those standards.
(2) In giving any such direction, the Authority shall not specify a frequency of less than once in every period of 12 months.
(3) The duty of a sewerage undertaker to comply with this Article shall be enforceable by the Authority under Article 30.