Planning for Sewerage and Sewage Treatment
Sewerage Master Plans (SMPs)
SMPs provide a blueprint of the sewage infrastructure required to collect sewage on a catchment-by-catchment basis and direct it to treatment facilities. The entire territory has been divided into 16 areas, and SMPs have been produced for all of them. The recommendations of these SMPs are being implemented progressively to cater for the present and future development needs of Hong Kong. In light of revised population forecasts and associated projected development proposed for the HKSAR, these SMPs have been reviewed and proposals for upgrading works are being pursued on a priority basis.
Harbour Area Treatment Scheme
The Government has upgraded the harbour area sewage treatment at a strategic level through implementation of the Harbour Area Treatment Scheme (HATS). Stage 1 of HATS, which was brought into full operation in late 2001, included the construction of a chemically-enhanced primary sewage treatment works on Stonecutters Island. The treated sewage is discharged through an outfall into the western part of the Harbour. The areas served by Stage 1 include the whole of the Kowloon Peninsula, Tseung Kwan O, Kwai Chung, Tsing Yi, Tsuen Wan, Shau Kei Wan and Chai Wan. Stage 2A was commissioned in late 2015, redirecting the remaining sewage from the northern and southwestern parts of Hong Kong Island, which previously received only preliminary treatment, to the newly expanded Stonecutters Island Sewage Treatment Works for chemically enhanced primary treatment and disinfection. The scheme has already substantially improved the overall water quality of Hong Kong's best known icon, Victoria Harbour.
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