Sewerage and
Drainage Act 1999
2020 REVISED EDITION
This revised edition incorporates all amendments up to and including 1 December 2021 and comes into operation on 31 December 2021
An Act to provide for and regulate the construction, maintenance, improvement, operation and use of sewerage and land drainage systems, to regulate the discharge of sewage and trade effluent and for matters connected therewith.
[10/2012]
[1 April 1999]
PART 1
PRELIMINARY
Short title
1.  This Act is the Sewerage and Drainage Act 1999.
Interpretation
2.  In this Act, unless the context otherwise requires —
“authorised officer” means any person appointed as an authorised officer under section 3(2);
“Board” means the Public Utilities Board continued under section 3 of the Public Utilities Act 2001;
“building” has the meaning given by the Building Control Act 1989;
“competent authority” means an authority appointed under section 5 of the Planning Act 1998;
“drain” includes any canal, culvert, conduit, river or watercourse;
“drain‑line” means any pipe or sewer which is connected to the sewerage system of any premises;
“drainage reserve” means —
(a)any land set aside for drainage works pursuant to development proposals approved by a competent authority;
(b)any land vested in the Government under section 29; or
(c)any State land that is reserved for the purposes of the Board (permanently or temporarily) in connection with drainage works or a storm water drainage system;
[Act 42 of 2022 wef 01/11/2024]
“drainage works” includes any engineering works for the construction, alteration and maintenance of any stormwater drainage system;
“fittings” means any apparatus or parts used for any sanitary facility or drain‑line of any premises;
“industrial water” means any water reclaimed from the sewage treatment works for use in industries that do not require high grade potable water;
“licensed plumber” means an individual who holds a plumber’s licence as defined in section 2 of the Public Utilities Act 2001;
“Magistrate’s Court limit” has the meaning given by the State Courts Act 1970;
“occupier”, in relation to any premises, includes any person having the charge, management or control of the premises or any part thereof;
“owner”, in relation to —
(a)any premises, includes —
(i)the person for the time being receiving the rent of the premises, whether on the person’s own account or as agent or trustee or as receiver, or who would receive the rent if the premises were let to a tenant; and
(ii)the person whose name is entered in the Valuation List prepared under section 10 of the Property Tax Act 1960;
(b)the common property of any building erected on land comprised in a strata subdivision plan approved by the competent authority, includes —
(i)the management corporation having control of the building;
(ii)a managing agent appointed by a management corporation or by the Commissioner of Buildings under the Building Maintenance and Strata Management Act 2004; and
(iii)a liquidator appointed for that management corporation; and
(c)the limited common property of any building erected on land comprised in a strata subdivision plan approved by the competent authority, includes —
(i)the subsidiary management corporation having control of that limited common property;
(ii)a managing agent appointed by a subsidiary management corporation or by the Commissioner of Buildings under the Building Maintenance and Strata Management Act 2004; and
(iii)a liquidator appointed for that subsidiary management corporation;
“premises” includes messuages, houses, buildings, lands, tenements, easements and hereditaments of any tenure, whether open or enclosed, whether built or not, whether public or private, and whether maintained under statutory authority or not;
“public sewerage system” includes —
(a)sewerage systems which were vested in the Government before 1 April 1999 under the repealed Water Pollution Control and Drainage Act (Cap. 348, 1985 Revised Edition) or any other written law;
(b)sewerage systems with respect to which a declaration of vesting has been made under section 8;
(c)sewerage systems constructed by the Government or the Board on behalf of the Government on any private property at the expense of the Government or acquired by the Government;
(d)sewerage systems constructed on any private property and maintained by the Board; and
(e)sewerage systems owned or managed by the Board;
“public sewers” includes —
(a)sewers which were vested in the Government before 1 April 1999 under the repealed Water Pollution Control and Drainage Act (Cap. 348, 1985 Revised Edition) or any other written law;
(b)sewers with respect to which a declaration of vesting has been made under section 9;
(c)sewers constructed by the Government or the Board on behalf of the Government on any private property at the expense of the Government or acquired by the Government; and
(d)sewers constructed on any private property and maintained by the Board;
“qualified person” means a qualified person appointed under section 8 or 11 of the Building Control Act 1989 in respect of works which include sewerage works, drainage works or sanitary works, and whose qualification is appropriate to the nature of those works;
“reclaimed water” means treated water which has been recovered from a public sewerage system;
“Registrar of Deeds” means the Registrar of Deeds appointed under the Registration of Deeds Act 1988;
“Registrar of Titles” means the Registrar of Titles appointed under the Land Titles Act 1993;
“sanitary appliances” includes washbasins, bathtubs, sinks, urinals, toilet bowls, bidets and other similar fixtures;
“sanitary facilities” includes bathrooms, toilets, facilities for washing and sanitary appliances, together with the associated pipework, whether above or below the ground, which connect, directly or otherwise, to a private sewage treatment plant or a public sewerage system;
“sanitary works” means —
(a)constructing, altering, repairing, replacing, discontinuing or closing up any discharge pipe, ventilating pipe, drain‑line, fitting, floor trap, inspection chamber, grease trap, pump or any other appurtenance related to the conveyance of sewage or sullage water from any sanitary appliance or sanitary facility to a sewerage system; and
(b)installing, fixing, altering, repairing or removing a sanitary appliance or sanitary facility, and any other connected works;
“sewage” includes waterborne domestic waste and trade effluent;
“sewerage system” means a system of sewers, pumping stations, sewage treatment plants, sewage treatment works and water reclamation facilities for one or both of the following purposes:
(a)the collection, treatment and disposal of sewage;
(b)the recovery and treatment of water which is supplied to the Board or by the Board,
and includes any main or pipe carrying reclaimed water or sewage, outfall pipe, sanitary pipe, drain‑line, grease trap, cesspit, holding tank for the temporary holding of sewage, septic tank, privy, and any part thereof;
“sewerage works” includes engineering works for the construction, alteration and maintenance of any sewerage system;
“stormwater” means rainwater and surface water but does not include sewage;
“stormwater drainage system” means a system of drains for the conveyance or storage of stormwater and includes —
(a)any weir, grating, float, boom, gauge, tidegate, sump, storage pond, pumping station, maintenance access, and debris interception and removal facility related to such system;
(b)any structure constructed to convey, store or measure stormwater or for flood alleviation; and
(c)any bridge over or railing for any such drain or any appurtenance thereof;
“temporary building” has the meaning given by the Building Control Act 1989;
“Town Council” means any Town Council established under section 4 of the Town Councils Act 1988;
“trade effluent” means any liquid, including particles of matter and other substances in suspension in the liquid, which is the outflow from any trade, business or manufacture or of any works of engineering or building construction;
“works” has the same meaning as “building works” in the Building Control Act 1989 and includes sewerage works, drainage works and sanitary works.
[9/2002; 47/2004; 10/2012; 5/2014; 11/2018]