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WSD Circular Letters

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following list is a complete set of existing Circular Letters that are currently in force.

From time to time, new Circular Letters are added to the list to promulgate new policy decisions and procedures. Circular Letters are removed from the list when they are outdated or their contents have been subsumed in other relevant publications issued by Water Supplies Department.

A full set of circular letters can be downloaded (file size of ~4MBytes) at this link.

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following list is a complete set of existing Circular Letters that are currently in force.

From time to time, new Circular Letters are added to the list to promulgate new policy decisions and procedures. Circular Letters are removed from the list when they are outdated or their contents have been subsumed in other relevant publications issued by Water Supplies Department.

A full set of circular letters can be downloaded (file size of ~12 MBytes) at this link.

Please note that all the circular letters held under this web page are in PDF format and you need to download the latest version of Acrobat Reader to view and print these documents.

The following circular letters have been either superseded or subsumed under relevant documents. For the subsumed circular letters, the policies and procedures contained therein can now be found in the document(s) (Technical Requirements for Plumbing Works in Buildings and Guide to Application for Water Supply) indicated in the table below and should continue to be followed.

FAQs for Obsolete Circular Letters

No. Description Date Issued Category Applicable to
LP AP
2019
2/2019 Procedures for Applications for Water Supply in New Building Projects adopting "Modular Integrated Construction" Method 2019/02/20 3 Yes Yes
1/2019 Streamlined workflow for effecting of water supply to new village houses after disinfection of inside service 2019/01/04 3 Yes Yes
2018
6/2018 Streamlined Procedures for Processing Applications for Water Supplies for Village Type Houses and Separate Metering 2018/12/05 3 Yes Yes
5/2018 Streamlined Procedures for Processing Applications for Temporary Water Supplies for Construction Site 2018/11/28 3 Yes Yes
9/2017 Addendum to Circular Letter No. 9/2017 - New Commissioning Requirements for New Plumbing Works - Revised Systematic Flushing Record Form for New Buildings 2018/09/06 3 Yes Yes
4/2018 Technical Requirements for Plumbing Works in Buildings and Guide to Application for Water Supply 2018/08/21 3 Yes Yes
2/2018 Commencement of Waterworks (Amendment) Ordinance 2018 2018/02/15 1 Yes Yes
2017
8/2017 Surveillance Programme for the General Acceptance System 2017/09/16 4 Yes Yes
7/2017 Submission of Consumption Flow Rates and Installation of Flow Restrictor 2017/08/25 3 Yes Yes
2016
3/2016 Voluntary Continuing Professional Development Scheme for Licensed Plumbers 2016/10/12 1 Yes Yes
2015
6/2015 Application for Water Supply Pipes and Fittings Approval 2015/08/31 4 Yes Yes
2/2015 Validity Period for General Acceptance of Water Supply Pipes and Fittings 2015/08/11 4 Yes Yes
1/2015 Prohibition of Using Leaded Solder at Fresh Water Inside Services and New Parameters for Testing of Water Sample 2015/07/13 3 Yes Yes
2012
2/2012 Cleansing and Disinfection of Fresh Water Inside Service 2012/08/10 2 Yes Yes
2010
3/2010 Target Response Time for Completing the Key Activities in respect of the Application for Water Supply 2010/09/24 3 Yes Yes
1/2010 Minimum Flow Requirements for Draw-off Taps, Single and Combination Taps 2010/05/06 2 Yes Yes
2006
3/2006 Meter Removal and Water Supply Disconnection due to Building Demolition 2006/09/07 2 NA Yes
2003
6/2003 Advice on Installation of a Filter before the Flushing Valve 2003/08/29 2 Yes Yes
1999
1/1999 Flushing Supply to Village Houses 1999/01/07 3 Yes Yes
1996
5/1996 Reducing Minimum Flushing Volume from 9 Litres to 7.5 Litres 1996/08/17 2 Yes Yes
1990
2/1990 Need for Plumbing Work to be Carried Out by Licensed Plumbers 1990/09/04 2 Yes NA
1/1990 Illegial Connections at Meter Position and Installation of Inside Service or Fire Service Prior to Approval of Form G 1990/05/11 2 Yes Yes

Note

Category Information
1 Administration
2 Hong Kong Waterworks Standard Requirements
3 Application of Water Supply
4 Approval of Pipes and Fitting