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Circular Letters issued to Licensed Plumbers
and Authorized Persons


Please note that all the circular letters held under this web page are in PDF format and you need to install Acrobat Reader 5.5 or above to view and print these documents.

Download a set of circulars (circulars issued in 2007 are included) (17.9 MBytes)

No.
Description
Date Issued

2008

1/2008 Amendment to Point Penalty System for Defects in Plumbing Works Carried Out by Licensed Plumbers
27.6.2008

2007

4/2007 Amendment to "Hong Kong Waterworks Standard Requirement"
26.10.2007
3/2007 Enhancement for Application of Water Supplies
10.10.2007
2/2007 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR)
20.6.2007
1/2007 Reduction of the Minimum Residual Pressure
27.3.2007

2006

4/2006 Implementation of 5-Day Week for Applications of Plumbers' Licences
30.11.2006
3/2006 Meter Removal and Water Supply Disconnection due to Building Demolition
7.9.2006
2/2006 Addendum to WSD Circular Letter No. 2/2006 - Implementation of Master Metering Policy for Fresh Water and Temporary Mains-water for Flushing Inside Service and Fire Service
18.9.2006
Amendment to WSD Circular Letter No. 5/2005 - Implementation of Master Metering Policy for Fresh Water and Temporary Mains-water for Flushing Inside Service and Fire Service (This Circular Letter is to be read in conjunction with Circular Letter No. 5/2005)
1.9.2006
1/2006 Implementation of 5-day Week in Water Supplies Department
6.6.2006

2005

5/2005 Implementation of Master Metering Policy for Fresh Water and Temporary Mains-water for Flushing Inside Service and Fire Service
23.11.2005
4/2005 Guideline on the Installation and Removal of MSL-TD88 Meters
17.11.2005
3/2005 Updated List of Persons to Contact in Water Supplies Department About Processing of Application for New Water Supply
14.6.2005
2/2005 Dropbox for Documents on Application for Metered Supply to New Building Projects
14.6.2005
1/2005 Reply with Quoting Reference and Plumbing Project/Service Address
20.4.2005

2004

5/2004 Rolling Out of Customer Care and Billing System Phase IIa Application of Plumbers' Licence and Application of Water Supply
31.12.2004
4/2004 Installation of Domestic Water Filters (including Water Filters Incorporated in Water Using Apparatuses, such as Drinking Fountain etc.)
25.10.2004
3/2004 Revision of Form WWO132
21.5.2004
2/2004 Excavation Permit Fees under the Land (Miscellaneous Provisions) (Amendment) Ordinance 2003
(For more details, please refer to "The Land (Miscellaneous Provisions) Regulations (Chapter: 28A) Schedule 3")
30.3.2004
1/2004 Change in WWO 46 Submission Practice 27.2.2004

2003

7/2003 No Need to Re-apply for Acceptance or No-objection Letters of the Same Pipes and Fittings 4.9.2003
6/2003 Advice on Installation of a Filter before the Flushing Valve 29.8.2003
5/2003 Imposition of 5% and 10% Surcharge to Overdue Charge on Connection and Meter Installation for New Buildings 16.8.2003
4/2003 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 21.5.2003
3/2003 Re-structuring of Customer Services Districts of the Water Supplies Department 21.2.2003
2/2003 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 14.2.2003
1/2003 Issue of "No-objection" Letters of Thermoplastic Pipes 6.1.2003

2002

8/2002 Renewal of Plumber's Licences 15.10.2002
7/2002 Re-organisation of the Water Supplies Department 9.9.2002
6/2002 Cleaning and Sterilization of Fresh Water Mains of Inside Service 26.8.2002
5/2002 Waste Minimization Provision of Sanitary Fitments and Fittings in New Buildings 26.8.2002
4/2002 Fresh Water Plumbing Quality Maintenance Recognition Scheme
(renamed as "Quality Water Recognition Scheme for Buildings" since 1.1.08)
9.8.2002
3/2002 Approval of Water Supply Fittings 28.6.2002
2/2002 Helping Business Programme - Authorizing Private Developers and Authorized Persons to Undertake Water Supply Connection Works

(For updated information, please visit this webpage.)

9.4.2002
1/2002 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 22.2.2002

2001

3/2001 A List of Licensed Plumbers 12.3.2001
2/2001 Form WWO 542 -Application for Water Supply / Request for Work to be Carried out by the Water Authority 21.12.2001
1/2001 Installation of Water Meters by Licensed Plumbers 17.11.2001

2000

4/2000 The Use of Valve Type Flushing Devices and Minimum Flushing Volume 31.10.2000
3/2000 Waiving the Requirement to Seek Approval for Commencement of Inside Service/Fire Service Works 21.7.2000
2/2000 Target Response Time for Completing the Key Activities in respect of the Application for New Water Supply 5.7.2000
1/2000 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 7.6.2000

1999

7/99 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 30.11.1999
6/99 Approval of Water Supply Fittings 12.7.1999
5/99 Amendments to the Waterworks Regulations 19.6.1999
4/99 Replumbing Works within Buildings 31.3.1999
3/99 Delay in Reporting Completion of Plumbing Works 19.3.1999
2/99 Helping Business Programme - Authorsing Private Developers and Authorised Persons to Undertake Water Supply Connection Works 10.2.1999
1/99 Flushing Supply to Village Houses 7.1.1999

1998

3/98 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 17.12.1998
2/98 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 4.9.1998
1/98 Enquiries Related to Applications for New Water Supply 10.8.1998

1997

3/97 Helping Business Programme - Authorising Private Developers to Undertake Water Supply Connection Works 31.12.1997
2/97 Licensing of Plumbers 20.10.1997
1/97 Identification of Internal Fresh and Salt Water Mains within Large Developments 27.3.1997

1996

5/96 Reducing Minimum Flushing Volume from 9 Litres to 7.5 Litres 17.8.1996
4/96 Submission of Drawings for Approval 28.3.1996
3/96 Hong Kong Waterwaters Standard Requirements (Aug 95) Amendment No. 1 9.2.1996
2/96 Hong Kong Waterworks Standard Requirements for Plumbing Installation in Buildings (August 1995) - Chinese Version 8.2.1996
1/96 Bounded Volume of WSD Circular Letters (12/95) 26.1.1996

1995

6/95 Hong Kong Waterworks Standard Requirements for Plumbing Installation in Buildings (August 1985) 16.10.1995
5/95 Application for Constructing, Installing, Altering or Removing an Inside Service or Fire Service 20.9.1995
4/95 A Guide to the Preparation of Plumbing Proposals 12.6.1995
3/95 Use of Different Pipe Materials as Inside Service in Buildings 1.5.1995
2/95 Amendments to the Hong Kong Waterworks Standard Requirements (HKWSR) 3.3.1995
1/95 Abandonment of the Use of Unlined Galvanized Steel Pipes as a Fresh Water Inside Service 10.1.1995

1994

1/94 Inspection of Concealed Inside Service/Fire Service 23.5.1994

1992

3/92 Installation of Water Meters by Licensed Plumbers 10.12.1992
2/92 Waterworks Regulation Part V - Lincensing of Plumbers 18.12.1992
1/92 Installation of Unvented Electric Thermal Storage Type Water Heaters 13.5.1992

1991

1/91 Use of Galvanised Steel Pipe and Fittings with Protective Internal Lining on Cold Water Inside Services 23.7.1991

1990

3/90 Installation of Unvented Electric Thermal Storage Type Water Heaters 11.9.1990
2/90 Need for Plumbing Work to be Carried Out by Licensed Plumbers 4.9.1990
1/90 Illegial Connections at Meter Position and Installation of Inside Service or Fire Service Prior to Approval of Form G 11.5.1990

1989

1/89 Application for Installation of Inside Services/Fire Services in New Building Projects 26.5.1989

Unvented Electric Storage Water Heater 9.2.1989

1988

1/88 Installation of Water Meters for Large Building Projects 20.4.1988

1986

3/86 Control of Pipes and Fittings 5.12.1986
2/86 Amendments to Point Penalty System for Defects in Plumbing Works Carried Out by Licensed Plumbers 24.10.1986

Approval of Water Supply Fittings (Supplementary No. 3) 25.2.1986

1985


Point Penalty System for Defects in Plumbing Works Carried Out by Licensed Plumbers (Supplementary) 11.9.1985

1984


Point Penalty System for Defects in Plumbing Works Carried Out by Licensed Plumbers 24.8.1984

Approval of Water Supply Fittings (Supplementary No. 2) 16.1.1984

1983


Use of Polybutylene Pipes, Tubings and Fittings on Inside Service 15.10.1983

Provision of Water Supply and Fire Service Connections to New Developments 22.3.1983

Installation of Unvented Thermal Storage Type Water Heaters 18.2.1983

1982


Approval of Water Supply Fittings (Supplementary No. 1) 12.11.1982

Approval of Water Supply Fittings 2.7.1982

1981


Provision of Proper Protection to Galvanized Iron Pipes Encased in Concrete 5.1981

1979


Cold Water Inside Services : Use of Unplasticised Polyvinyl Chloride Pipes and Fittings 8.3.1979

1978


Cold Water Inside Services : Use of Unplasticised Polyvinyl Chloride Pipes and Fittings 12.4.1978

1975


Fire Service in Buildings 24.2.1975


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