(1) The Minister may approve a temporary water restriction scheme under section 9 only if the scheme includes provision in relation to the following:
(a) a range of temporary restrictions to be imposed in stages on the use of water by consumers;
(b) the imposition of each stage of temporary restrictions by reference to 1 or more of the following:
(i) the source, capacity or quality of stored water available to the utility for water services;
(ii) the rate of consumption of water supplied by the utility;
(iii) any reduction in water consumption to be achieved; and
(c) the operation and revocation of each stage of temporary restrictions, whether by reference to a period or circumstances.
(2) An approved temporary water restriction scheme may include provision for the utility to exempt a consumer from a temporary water restriction if compliance with the restriction would cause the consumer serious detriment.
(3) This section does not limit the scope of an approved temporary water restriction scheme.