(1) Every person undertaking building or sewerage work shall take all reasonable steps to avoid and mitigate any nuisance which may be caused by such work, and in particular, shall ensure that-

a) gutters and drains for the flow of surface-water are kept clear at all times; and

b) subject to permission being obtained from the local authority, access to fire-hydrants, lamp-posts, parking-meters, transformers, public telephones, post boxes and other public facilities is not obstructed by piles of material, scaffolding, hoardings, barriers or otherwise; and

c) effective steps are taken, including the covering, sprinkling and wetting-down of materials, during demolition work, to prevent dust, smoke, harmful fumes or other harmful agents spreading over adjacent premises or public places during building, demolition or sand-blasting operations, or during the conveyance of materials and rubble to and from the site; and

d) noisy and disruptive operations are not undertaken on Sundays and public holidays or after 6

p.m. or before 7 a.m. on other days without written permission of the local authority.

(2) In addition to observing the provisions of this Chapter, every person undertaking building or sewerage work shall comply with the provisions of Parts III and IV of Chapter 12