137 Water supply may be restricted if there is a shortage of supply
(1) A council that considers the available stored water in a water supply system supplying its area, or the available capacity of supply from that system, to be insufficient to allow the unrestricted consumption of water for purposes other than domestic purposes may, by notice published in accordance with this clause, restrict:(a) the purposes for which the water can be used, or(b) the times when the water can be used, or(c) the methods by which the water can be used, or(d) the quantities of the water that can be used.(2) The council may, by notice published in accordance with this clause, place the same sort of restrictions as are referred to in subclause (1) on the use of water from such a water supply system for any purposes (including domestic purposes):(a) if there is a drought, or(b) if the available stored water, or the available capacity of supply, is so limited as to make extraordinary measures necessary in the general interest of water consumers.(3) Restrictions under this clause can be imposed in respect of all of the council area supplied by the water supply system, but can apply to a part of that area if and only if:(a) the shortage of water or shortage in capacity of supply is limited to that part, or(b) the council orders the supply to be restricted to different parts of the area in rotation.(4) Restrictions under this clause can be imposed only by a notice of the council published in a newspaper circulating within the council’s area.(5) All agreements made by the council relating to the supply of water are subject to this clause.(6) This clause does not authorise the council to make orders restricting persons’ rights under the Water Act 1912 or the Water Management Act 2000.
138 Works for which approval is required under section 60 of the Act
(1) The Minister for Utilities may give a council an approval for the purposes of section 60 of the Act if and only if:(a) the council has made an application in writing for consent that is accompanied by the relevant documents, and(b) either the council has complied with any requirement of that Minister to supply further information with respect to the application or that Minister has waived any such requirement, and(c) that Minister is satisfied that the council is competent to exercise the powers that it would not be able to exercise without that approval, and(d) all inspections of the work and the site of the work that that Minister has directed to be carried out for the purpose of enabling the application to be considered have been carried out.(2) The relevant documents are:(a) the plans and specifications of, and documents and data in the possession of the council that are relevant to, the exercise of power in respect of which the approval is sought, and(b) any documents containing details sufficient to satisfy the Minister for Utilities of the matters referred to in subclause (1) (b)–(d).(3) If the Minister for Utilities has, for the purposes of section 60 of the Act, approved the exercise by the council of its powers with respect to a work, that Minister may, by notice in writing to the council, revoke that approval if the council has failed:(a) to comply with any requirements that that Minister has made with respect to the provision of additional plans, specifications, documents or information with respect to the exercise of those powers, or(b) to comply with any directions that that Minister has given with respect to the work, or(c) to accept any supervision of the exercise of those powers that that Minister has required.
139 Erection of notices to indicate catchment districts
The council may, on land in a catchment district, erect such notices as it considers necessary for indicating the boundaries of the district and directing attention to any prohibitions or restrictions applicable to the district.Note. Section 640 of the Act provides that contravention of a prohibition or restriction in such a notice is an offence.
A work that is, or will when completed be, a prescribed dam for the purposes of the Dams Safety Act 1978 is prescribed as a flood retarding basin for the purposes of section 60 (d) of the Act.

Division 1