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Our Core Responsibilities

The Drainage Services Department (DSD) is committed to providing professional sewage treatment and stormwater drainage services to the public so as to protect the quality of Hong Kong waters and protect the citizens against flooding. Since our establishment in 1989, we have been endeavouring to build excellent sewerage and drainage facilities to make Hong Kong a more livable city.

Overview of Flood Prevention in 2017-18

  • Inspected over 2,290 kilometres of drains and rivers
  • Removed the flooding blackspot at Tung Tsz Road in Tai Po
  • Currently planning and formulating the drainage improvement works for West Kowloon, East Kowloon, Shatin, Sai Kung, Tai Po and Northern Hong Kong Island
  • Currently reviewing the DMPs for Lantau and Outlying Islands, Repulse Bay and Tai Tam, Tuen Mun, Tsuen Wan and Kwai Tsing

Planning, Design and Construction of New Drainage Facilities

Kai Tak River Improvement Works (The picture shows the Kai Tak River after the Improvement Works)

Photomontage of Tsui Ping River

Revitalisation of Tsui Ping River (The picture shows the photomontage of Tsui Ping River)

Overview of Sewage Treatment and Sewerage System in 2017-18

  • Treatment of about 2.8 million cubic metres of sewage on average every day and 1,007 million cubic metres of sewage in total in the year
  • Total length of sewerage network 1,770 (kilometres)
  • Coverage of public sewerage 93.5% (Population percentage)
  • About 380,000 tonnes of sludge collected and treated in the year
  • A total of 314 DSD owned sewage treatment facilities

Planning, Design and Construction of New Sewerage Facilities

Mui Wo Sewage Treatment Works

Upgrading of Mui Wo Sewage Treatment Works (The picture shows the Mui Wo Sewage Treatment Works)

Relocation of Shatin Sewage Treatment Works to Caverns

Relocation of Sha Tin Sewage Treatment Work Caverns

For details about the drainage and sewerage facilities under planning, design and construction, please refer to the Full Report.