Oakdale, NSW

Martens and Associates were engaged to undertake water sensitive urban design and associated water quality modelling to support a proposed residential subdivision in Oakdale, NSW.

Martens and Associates were engaged to undertake water sensitive urban design and associated water quality modelling to support a proposed residential subdivision in Oakdale, NSW. The development discharged into a mapped watercourse and was situated within the Sydney Water Drinking Water Catchment.

Water quality (MUSIC) modelling was required to develop a stormwater quality treatment train that was practical for the developer and Council with regards to construction, installation and ongoing maintenance and achieved neutral or beneficial water quality impacts when compared to ambient conditions. The modelling was also required to comply with stringent Sydney Catchment Authority guidelines, who were also an approval authority.

Project scope included:

• Preparation of MUSIC model in accordance with Sydney Catchment Authority Using MUSIC in Sydney’s Drinking Water Catchment guidelines (2012).
• Formulation of a suitable treatment train in consultation with the developer, Wollondilly Council and Sydney Catchment Authority that included both at source and end of line treatment measures.
• Development of representative pre-development (existing) and post-development MUSIC models to simulate existing and future runoff quality conditions and allow refinement of the treatment train.