No. S 338
Sewerage and Drainage Act
Sewerage and Drainage (Protection of Public
Sewerage System) Regulations 2017
In exercise of the powers conferred by section 74(1) of the Sewerage and Drainage Act, the Public Utilities Board, with the approval of the Minister for the Environment and Water Resources, makes the following Regulations:
Citation and commencement
1.  These Regulations are the Sewerage and Drainage (Protection of Public Sewerage System) Regulations 2017 and come into operation on 30 June 2017.
General definitions
2.  In these Regulations, unless the context otherwise requires —
“approved plan”, in relation to a specified activity, means a plan for the activity —
(a)that is approved by the Board pursuant to an application under regulation 5, as may be amended with the permission of the Board under regulation 6; and
(b)that has not ceased to be an approved plan under regulation 7;
“commencement window period”, in relation to a specified activity, means the period mentioned in regulation 8 during which the activity must commence;
“construction survey” means a survey of —
(a)the part of the public sewer corridor in which a specified activity is proposed to be or has been carried out; and
(b)such other part of the public sewer corridor as the Board considers may be affected by the carrying out of the specified activity,
for the purpose of establishing the location, depth and structural condition of the public sewerage system in that part of the public sewer corridor;
“contractor”, in relation to a specified activity, means a person who carries out the activity for the person’s own account, or for another person (whether or not for any reward), but does not include a person who carries out the activity under a contract of service;
“plan”, in relation to any specified activity, includes any drawing, detail, diagram, calculation, and structural detail and calculation, showing or relating to the activity;
“public sewer corridor” means the land and space bounded by 2 vertical planes as illustrated in the First Schedule, through which any sewer, main or pipe of a public sewerage system runs (whether under, on or above ground);
“qualified person” has the same meaning as in section 2(1) of the Building Control Act (Cap. 29);
“registered professional engineer” means a person who is registered under the Professional Engineers Act (Cap. 253) as a professional engineer in respect of one or more of the following:
(a)civil engineering;
(b)structural engineering;
(c)geotechnical engineering;
“responsible person”, in relation to any specified activity, means any of the following:
(a)the contractor of the activity;
(b)the qualified person or registered professional engineer appointed for the purpose of preparing and submitting the application for the approval of the plan for the activity under regulation 5;
“supervisor” means the person appointed as such under regulation 9(2);
“the Commissioner’s approval”, in relation to any plan for any specified activity, means the approval of the Commissioner of Building Control for the plan under section 5 of the Building Control Act.
Meaning of “specified activity”
3.  In these Regulations, “specified activity” means one or more of the following activities:
(a)the carrying out of any earthwork for site formation, whether by excavation, filling or backfilling;
(b)the excavation of any trench, well, pond or pool, or excavation for any underground structure which is more than 0.5 metre in depth;
(c)the excavation of earth, rock or other material by means of explosives;
(d)the carrying out of any ground exploratory or testing work, including through soil boreholes and geological surveys;
(e)the installation of any foundation, sheet pile, piled foundation, earth retaining or stabilising structure, ground anchor, horizontal tie‑back, or any other similar installation;
(f)the carrying out of any ground stabilising work, including jet grouting, soil compacting and ground freezing;
(g)the carrying out of any tunnelling, excavation work or jacking work;
(h)the erection of any temporary or permanent structure, including any site office or showflat;
(i)the installation of any heavy construction machine or plant, including the stacking and installation of any concrete block for pile testing;
(j)the installation of any container box.
Made on 27 June 2017.
Public Utilities Board,
[MEWR S030/01/124 Vol. 15; AG/LLRD/SL/294/2010/9 Vol. 3]
(To be presented to Parliament under section 74(2) of the Sewerage and Drainage Act).