Drainage Services Department

PWP No. 4439DS

Yuen Long Effluent Polishing Plant – stage 1

Project Scope

The scope of the project comprises (a) the demolition and reconstruction of part of the existing Yuen Long sewage treatment works to increase its treatment capacity from 70 000 cubic metres (m3) per day to 100 000 m3 per day and upgrading of sewage treatment level to tertiary effluent polishing standard; (b) the demolition and reconstruction of sludge treatment facilities; (c) the demolition and reconstruction of the administration building, storage building, switchgear house and transformer house; and (d) ancillary works and environmental mitigation measures.

Major Improvements and Benefits

The first stage of the construction works to upgrade the effluent standards and the treatment capacity of the Yuen Long Sewage Treatment Works


AECOM (Asia) Company Limited


DC/2019/10 - Paul Y. – CREC Joint Venture

DE/2020/01 - The Jardine Engineering Corporation, Limited

Contract No.
DC/2019/10, DE/2020/01
Project Commencement Date
9 November 2020
Project Completion Date
Mid 2027
Project estimate

About $6,861.4 million

Controlling Division
Sewerage Projects Division
Sewerage and sewage treatment
Yuen Long
Other Information
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