Martindale, Dalmeny, Waterford Pumping Station

BACKGROUND

Dalmeny Park estate is a new development within the District Council of Mount Barker, located approximately 30km east of the Adelaide CBD. The etate and the adjacent Martindale and Waterford estates are to include a dual water supply system encompassing a potable reticulated water network and a high quality non-potable water network supplied from the Mount Barker wastewater treatment plant. The effluent undergoes primary and secondary treatment via an aerated facultative lagoon before passing through a dissolved air flotation plant and a continuous micro filtration plant. Final polishing of the water is achieved in the Council owned Laratinga Wetlands.

The Council is now in the process of establishing a reticulation network for the high quality non-potable water. As part of this distribution network a storage tank has been constructed on the top of a hill in the vicinity of Paris Court. This tank will supply high quality non-potable water to the development via gravity.

In order to supply the tank a pumping station is required adjacent to Bald Hills Road. The pumping station will act as an in-line booster pump and will convey the high quality non-potable water arriving from Laratinga Wetland to the tank at Paris Court via a rising main.

SCOPE OF WORK

The work to be carried under this contract includes the supply of all materials, plant, labour and other equipment necessary to carry out the works required for construction components of the Bald Hills Road Pump Station and associated works, the scope of which includes, but is not limited to the following:

1. Site preparation works including filling of low areas and approaches to the pumping station intake; construction of earth drainage swale around pump station area; crushed rock hardstand around pumping station; and construction of an access track.

2. 285 m of 200mm rising main supply and installation.

3. Laying of a reinforced concrete slab for the pump station shed.

4. Construction of pipework, valves and fittings for the pump suction and the pump rising main.

5. Supply and installation of the pumps, electrics and controls.