Environmental assessment update for Castle Hill Water Resource Recovery Facility

The environmental assessment for the Castle Hill Water Resource Recovery Facility upgrade work was completed in 2021 and the decision to support the project was made in January 2022.

Since then, the project has been changed slightly and an extra environmental assessment was completed covering:

• Works around installing a high voltage power cable
• Changing the location of the high voltage switch room
• Removing the water from and filling in a lagoon no longer required on site.

Most of the work will happen within the existing facility, with some in the area surrounding the facility (while still remaining on Sydney Water property). Some of the work may impact local residents and visitors to the walking and cycling track, including:

• Noise from construction – this will be temporary only and will fluctuate based on the program of work
• Careful vegetation removal and trimming - some additional vegetation removal cannot be avoided as part of this extra work. We will make sure that appropriate actions are in place to ensure safety of wildlife, and plant replacement trees and shrubs towards the end of the project.
• Working on the lagoon may generate some odours, which is unlikely to impact local residents, however, we will be closely monitoring odour and dust during these work activities.

Read the full Review of Environmental Factors Addendum here.