“(1) Where any nuisance within the meaning of section 29 of the Health Act 1956 is created by an Auckland water organisation in the exercise of any powers conferred on it by this Act, the Director-General of Health may, by notice in writing to the organisation,—
“(2) If the organisation considers the requirements specified in the notice to be unreasonable or impracticable or unnecessary, it may, within 3 days after service of the notice on it, apply to the District Court for an order setting aside or modifying the notice. Pending the hearing of the application, the notice must be treated as suspended.
“(3) On the hearing of the application, the court, whose decision is final, must determine whether the notice should or should not be set aside or modified, and, if the notice is not set aside, the time within which the organisation must comply with the notice or, as the case may be, with the modified notice.
“(4) If the organisation within the time specified in a notice, or, in the case of an application to the court, within the time specified in the order of the court, fails to comply with the notice or order, the Medical Officer of Health under the Health Act 1956, without further notice to the organisation, may cause the nuisance to be abated, and for that purpose may, with such assistance as may be necessary, enter on any land or premises of the organisation and execute or cause to be executed the necessary works.
“(5) All expenses reasonably incurred by the Medical Officer of Health in the abatement of a nuisance under subsection (4) are recoverable from the organisation as a debt due to the Crown.