Introduction

Jacobs has been engaged by many clients to provide consulting services in connection with water drainage and public health engineering. This has included storm water and land drainage in urban and rural areas, foul water drainage, potable and flushing water supply systems, irrigation, dams, improvements, water treatment plants, and effluent disposal.

We undertake:

• Project related research and development
• Feasibility studies
• Computer modelling and analysis of systems
• Design of gravity and pressure pipelines
• Design of intakes, outfalls and pumping stations
• Design of treatment works
• Supervision of engineering works
• Investigation of engineering works
• Total project evaluation and management

We deal with the full cycle of the provision of potable water from raw water storage reservoirs or river intakes through piped mains, treatment works, service reservoirs, and piped reticulation to the end user. We also deal with the full cycle of sewerage from the piped collection of dirty water from the development area by gravity, or through pumping stations and rising mains to sewage treatment works and then to effluent outfalls. For special cases tertiary treatment is provided to allow the effluent to be reused for irrigation water or other purposes. Stormwater flows from catchment areas are estimated, routed through channels, pipes and culverts for eventual outfall making use of detention area and balancing ponds to optimise flow regimes.

Projects

Transfer Facilities from Butterfly Valley Primary Service Reservoir to Secondary Service Reservoir in the Metropolitan Area - Stage 1 Client: Water Supplies Department Design and supervision of construction for laying of about 7km water mains with diameter ranging from 1200mm to 2400mm.

Au Tau Treatment Works, Hong Kong Client: Water Supplies Department Design and supervision of construction for the 1400mm diameter. Watermains from the Au Tau Treatment Works supply system to Yuen Long Town, Hong Kong.