The contract includes design, construction and operation & maintenance for 35 years under concession.
The Helena Water consortium, comprising ACCIONA, TRILITY, Brookfields Multiplex and RoyalBank of Scotland, won the tender to design, build and operate the Mundaring drinking water treatment plant in the Perth area (Western Australia) for a 35 year period.
This is a PPP (Public Private Partnership) project in the state of Western Australia. Its initial capacity is 165,000 m3 per day, with a maximum capacity of around 240,000 m3 per day.
The plant supplies the Goldfields and Agricultural Water System (G&AWS) network, including Kalgoorlie, in the State of Western Australia. Australia's G&AWS is the drinking water supply network serving more than 100,000 people. It has more than 530 km of pipelines originally built in 1919.
The plant takes raw water from the Mundaring reservoir and then treats it to achieve the correct pH level.
GENERAL INFORMATION
- Entity: Water Corporation
- Location: Mundaring, Western Australia
- Population Served: 100,000 inhabitants
- Flow: 165,000 m3/day
KEY POINTS
- 3 power supplies
- Raw water pumping
- Chemical treatment and flocculation
- Flotation - filtration: DAFF
- Activated carbon filtration (BAC)
- Dissolved Organic Carbon Removal (DOC)
- Ultraviolet and chloramines disinfection
- Recarbonation
- Sludge treatment
- Product water pumping
- 24/7 security of supply
- Australian Drinking Water Guidelines (ADWG) compliance
- Low corrosive product water for distribution pipework
- Disinfection control