TRANGIE WATER SUPPLY AUGMENTATION

4kms of 200mm PVC Rising Mains Bore Pumps and associated infrastructure

The project comprises of a new water infrastructure to improve the water supply for the town of Trangie, approximately 35km west of Narromine. This project involves the construction of the following infrastructure as per design supplied:

Narromine Shire Council drilled three new water supply production bores in the township of Trangie and the project involved the fit out of these three new town bores and their connection into the to be constructed new rising main to each bore site. The project included design supply and installation of bore pumps associated electrical control and monitoring equipment. The project was undertaken through funding made available through Restart NSW Water Security for regions program.

Works Undertaken

• Approximately 4,000m of 200m PVC PN16 Rising Mains from Bores to Reservoir
• Construct Reservoir Inlet tower and Pipework
• 80 meters of thrust boring under the Mitchell Highway and six residential streets
• Supply and install 3 Cast stainless steel Electric Submersible Pumps ranging from 30kw to 45kw on heavy duty lay flat pump column complete with all required stainless-steel fittings.
• Hydraulic Manifold arrangement at each bore head including Water meter, Valves, and all associated connection fittings to link to the existing adjacent mainline.
• Design supply and install suitably sized consumer mains from the supply authority transformer including transformer upgrades to each individual bore pump electrical shed.
• Design supply and install Electrical pump shed Switchboard and Motor control centre including Variable Speed Pump drive and all to interface with councils clear Scada control system to monitor bore water depth and current and cumulative flow rates to council reservoir.
• Testing and Commissioning of Pipeline and Pump Stations

Highlights, Innovations and Key Risks

• Project finished on schedule and budget
• No major disruption to town water supply through the project duration.
• Excavation and pipe laying in proximity to existing infrastructure
• No underground service strikes for the duration of the project