(1) A Sewerage Authority may, within its area and subject to the approval of the Governor General, without its area—
(a) construct and maintain a foul water sewer—
(i) in, under or over any street, and
(ii) in or over any land or in or under any building after giving reasonable notice to every owner or occupier of that land or building;
(b) construct any septic tank, pumping station, rising main, sea outfall or other works necessary for the conveyance and disposal of foul water;
(c) enter upon any land after giving reasonable notice as aforesaid and make excavations thereon for the purpose of laying down and attaching ventilating pipes to a foul water sewer, and may also support the said pipes against any building or other structure in such manner as the said Authority may deem fit.
(2) In the exercise of its powers under the preceding subsection the Sewerage Authority is liable to pay such compensation to any owner or occupier of any private lands as shall be agreed upon between them, but if the parties fail to agree on the amount of compensation then the procedure laid down in the Land Acquisition Act relating to the assessment of compensation, shall apply.