Disclosure Log 

The disclosure log provides summary descriptions of the nature of information requested and released under the Code on Access to Information (“the Code”) by this department.  The disclosure log will be updated on a quarterly basis.

If any member of the public wishes to obtain any information listed in the disclosure log, an information request should be made to our Access to Information Officer.  Such requests will be handled in accordance with the Code.


January to March 2017

Reference number Information requested and released

Full report of the study titled "A Comparative Study of Revitalization of Urban Stream in the Major Cities in Asia"

April to June 2017

Reference number Information requested and released

A Dye Test report of a private housing estate


Effluent quality of major sewage treatment works of Drainage Services Department, mainly concentration of chemical substances


Information on completed channelization works in 2016 and rivers/nullahs being planned for drainage improvement

July to September 2017

Reference number Information requested and released

Data related to sludge treatment in Stonecutters Island Sewage Treatment Works, Siu Ho Wan Sewage Treatment Works, Shek Wu Hui Sewage Treatment Works, Sai Kung Sewage Treatment Works, Tai Po Sewage Treatment Works, San Wai Sewage Treatment Works, Yuen Long Sewage Treatment Works, Sham Tseng Sewage Treatment Works, Stanley Sewage Treatment Works, Shatin Sewage Treatment Works and Pillar Point Sewage Treatment Works


List of working papers under an agreement and the final version of working papers submitted by the consultant

October to December 2017

Reference number Information requested and released

Volume of raw sewage treated and amount of dewatered sludge of major sewage treatment plants in 2016 and 2017

Note: The disclosure log does not cover requests from individual persons/companies for information about themselves and their complaint cases, or requests for information already published or available through an existing charged service.

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