EDP was been engaged as Randwick City Council to provide a holistic portfolio risk assessment of parks and open space assets.

Randwick City Council (RCC) recognised that while many of their park assets had technical contaminated land assessments or management plans, the contamination status of each site and real human health and ecological risk drivers were not understood. Furthermore, RCC were unclear on the responsibilities, compliance requirements and communication protocols with various internal and external stakeholders to allow the effective management of the sites. EDP was required to review all existing data and create a risk assessment framework which consolidated the contamination risks of the sites, and if RCC stakeholder requirements were being met.


  • Varied data sets for each site, the challenge was creating a risk assessment tool which catered to a wide spectrum of investigation detail.
  • RCC had a variety of stakeholder interest and desired outcomes from the asset review. The challenge was addressing all stakeholder outcomes and incorporating whether they had been adequately met, partially met, or not met within a consolidated document.
  • Creating a deliverable which concisely prioritised the sites against contamination status and stakeholder outcomes, which allowed RCC to make informed decisions on capital allocations.


To successfully deliver the project, EDP needed to create a bespoke set of deliverables which appraised and qualitatively risk ranked the sites through an adequacy of stakeholder outcomes being satisfied, as well as contaminated land risk. Throughout the delivery EDP:

  • Created a risk matrix and decision flow chart which attributed a score to each asset on how well various stakeholder outcomes were met, confidence in the contamination status of the site, and adequacy of the existing management plans. Through the risk matrix tool – sites were able to be categorised into low, moderate, or high risk.
  • Developed an internal procedure, so all sites were appraised in the same way by the delivery team. This innovation was a fundamental quality outcome which removed subjectivity from the assessments.


This was a marquee project for RCC and was widely successful. Key achievements were:

  • Delivery of a uniform and workable qualitative risk assessment framework which could be used for any parkland asset by any Council. As the framework was universal, the risk assessment model was presented by RCC at the Australian Local Government Association annual conference.
  • Depending on the outcomes of the risk assessment, develop revised sets of environmental management plans with updated sections and protocols which clearly define responsibilities to specific internal Council Stakeholders, ranging from the executive leadership to parks maintenance officers.