What are the key findings of the Review of Environmental Factors?

  • There are many benefits for the surrounding community and the environment.
  • The potential for environmental impacts is low because most of the work will be occurring within the two water recycling plant sites at Quakers Hill and St Marys.
  • The work will improve water quality of the surrounding waterways.
  • We will introduce new technology that will improve biosolids treatment and enable us to use biogas as a renewable energy resource.
  • The 12.5 km pipeline will allow us to centralise biosolid treatment at St Marys water recycling plant, which is in an industrial area. This will reduce the noise and traffic impacts at Quakers Hill water recycling plant, which is located in a predominately residential area.
  • Potential odour impacts on the surrounding community will be reduced.
  • There will be typical construction impacts such as additional traffic and noise. We will put measures in place to minimise these.
  • Vegetation and tree removal will be required at both water recycling plants. However, the areas impacted were assessed to be in poor condition and would not impact on biodiversity in the surrounding area.
  • The water recycling plants will continue to comply with their environmental protection licences.

When is Sydney Water proposing to start this work?

Work at both St Marys and Quakers Hill is expected to start in March 2018 and finish mid-2021.

What is a Water Recycling Plant or WRP?

A water recycling plant treats wastewater to the highest of standards - this means removing the waste and leaving only clean water that flows to our waterways.

What is Sydney Water doing to reduce its carbon footprint?

It's a fact that a lot of energy is needed to treat wastewater.

Currently, neither water recycling plant at St Marys or Quakers Hill has the capability of generating green energy but this will soon change.

As part of Sydney Water's Climate Change Strategy, we are installing at cogeneration facility at St Marys water recycling plant. This will reduce our carbon footprint by enabling us to start powering our water recycling plants using a renewable energy source.