Diamond Bay catchment design

20 Dec 2019



There are two existing ocean outfalls at Eastern Reserve and Diamond Bay. We plan to connect the two ocean outfalls, then pump the wastewater to the existing wastewater network at Old South Head Road.

The existing pipe is large and has capacity to easily get the wastewater to the treatment plant at Bondi. Once at Bondi, the wastewater will be treated and discharged into the ocean through deep ocean outfall pipes.

Diverting the Diamond Bay catchment involves:
  • Intercepting the existing outfalls at Eastern Reserve and Diamond Bay
  • Installing a 30cm wide pipe to connect Diamond Bay to Eastern Reserve
  • 33L/s pumping station at Eastern Reserve
  • 20cm wide rising main to connect to the existing Rose Bay sub main
Working with Waverley Council and guided by local input, we will refine the design to blend with the environment. We will also contribute to Council’s planned improvements to the clifftop boardwalk at Diamond Bay. You can view or print artist impression of Eastern Avenue Reserve here.
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