This Act may be cited as the Nelson Waterworks Extension Amendment Act 1936, and shall be read together with and deemed part of the Nelson Waterworks Extension Act 1935 (hereinafter referred to as the principal Act).

(1) Before commencing to construct any tunnel, of which any part shall be within a distance of sixty chains from the intake dam of the Stoke Mental Hospital, the Council shall make such provision, to the satisfaction of the Minister of Public Works, as will ensure that a sufficient supply of potable water will immediately be rendered available to the Stoke Mental Hospital in the event of the supply thereto from its present source being at any time during the progress of the works authorized by the principal Act cut off or reduced through any cause attributable to any such work carried out by the Council.

(2) This section is in substitution for subsection five of section four of the principal Act, and the said subsection is hereby accordingly repealed.