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Code of Practices

Code of Practice on Sewerage and Sanitary Works

(First published, 2000)

Terminology
"Central Building Plan Unit (CBPU)"

refers to the Central Building Plan Unit of the Planning and Development Department, National Environment Agency (NEA);

"Department"

refers to the Water Reclamation (Network) Department (WRN) of the Public Utilities Board (PUB);
(Addendum No. 2-Nov 2004)

"discharge pipe"

means a pipe which conveys the discharges from a sanitary appliance or a floor trap;

"discharge stack"

means a main vertical discharge pipe;

"drain-line"

means any pipe which is connected to the sewerage system;

"fittings"

means any apparatus or parts used for any sanitary facility or drain-line of any premises;

"public sewerage system"

includes:

  1. sewerage system which were vested in the Government before the appointed day under the repealed Water Pollution Control and Drainage Act (Cap. 348) or any other written law;
  2. sewerage systems with respect to which a declaration of vesting has been made under Section 9 of the Sewerage and Drainage Act;
  3. sewerage systems constructed by the Government or the Public Utilities Board on behalf of the Government on any private property at the expense of the Government or acquired by the Government; and
  4. sewerage systems which are constructed on any private property and maintained by the Public Utilities Board;
"public sewer"

includes:

  1. sewers which were vested in the Government before the appointed day under the repealed Water Pollution Control and Drainage Act (Cap. 348) or any other written law;
  2. sewers with respect to which a declaration of vesting has been made under Section 10 of the Sewerage and Drainage Act;
  3. sewers constructed by the Government or the Public Utilities Board on behalf of the Government on any private property at the expense of the Government or acquired by the Government; and
  4. sewers constructed on any private property and maintained by the Public Utilities Board;
"qualified person"

in relation to any sewerage works, means a qualified person appointed under section 6(3) or 9(2)(b) of the Building Control Act (Cap. 29) in respect of works which include the sewerage works, and those whose qualification is appropriate to the nature of those works;

"sanitary appliances"

includes wash basins, bath tubs, sinks, urinals, toilet bowls and other appliances which connect , directly or otherwise, to a private sewage treatment plant or a public sewerage system;

"sanitary drainage system"

means a network of underground pipes comprising drain-lines, branch drain-lines, fittings and inspection chambers for the conveyance of sewage within any premises to a sewerage system;

"sanitary facilities"

includes bathrooms, toilets, facilities for washing and sanitary appliances, together with the associated pipe-work, whether above or below the ground, which connect, directly or otherwise, to a private sewage treatment or a public sewerage system;

"sanitary plumbing system"

means a system of sanitary pipework above the ground comprising one or more discharge pipes, discharge stacks, ventilating pipes, ventilating stacks and fittings for the conveyance of sewage from premises to a sanitary drainage system;

"sanitary works"

include works on any sanitary plumbing system or sanitary drainage system and the fixing, alteration and repair of a sanitary appliance, and other works connected therewith;

"septic tank"

means a tank through which sewage flows and the deposited organic matter is wholly, or partially broken down anaerobically;

"sewage"

includes water-borne domestic waste and trade effluent;

"sewage treatment plant"

refers to sewage treatment works, septic tank, imhoff tank, percolating filter, sludge digestion tank, or any tank designed for the pretreatment, treatment or the stabilisation of sewage

"sewerage system"

means a system of sewers, pumping mains, pumping stations, sewage treatment plants and treatment works for the collection, treatment and disposal of sewage and recovery of industrial water and includes any industrial water main and pipe, drain-line, grease trap, cesspit, septic tank, privy and any appurtenance thereof;

"sewerage works"

includes engineering works for the construction, alteration and maintenance of any sewerage system;

"ventilating pipe"

means a pipe provided to limit the pressure fluctuations within any sanitary plumbing system;

"ventilating stack"

means a main vertical ventilating pipe.


 
Last updated on 22 Sep 2010