The scheme includes approximately 40 km of pipes to collect wastewater from the Appin village and transfer it to Sydney Water’s system at Rosemeadow.
The scheme also featured a directional drilling component, which totalled 5,482 m of directional drilling by UEA Trenchless using Vermeer drilling equipment.
New South Wales Minister for Finance and Services Greg Pearce said “After 18 months of construction, the Appin Wastewater Scheme has been completed on time and on budget.
“Those connecting can now enjoy the benefits of a new wastewater system, rather than relying on septic tanks and a pump-out service,” said Mr Pearce.
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The Appin Wastewater Scheme will allow about 550 existing properties to connect to the new system.
The scheme is part of the New South Wales Government’s Priority Sewerage Program, which is being delivered by an alliance between Sydney Water, MWH Australia, John Holland Group, United Group Infrastructure and Manidis Roberts.
By connecting, residents can save hundreds of dollars, help reduce odours and eliminate dampness and seepage on their properties caused by on-site systems.


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