Cobaki Lakes development



Our role

Cobaki, Tweed Shire, New South Wales

  • Water balance assessment
  • Water and sewer servicing
  • Water supply options
  • Hydraulic design
  • Masterplan design
  • Net present value report
  • Engineering report
  • Detailed design of system
  • Design of wastewater treatment plant
  • Preparation of IPART (Independent Pricing and Regulatory Tribunal Act 1992) reports.

Planit was engaged by Northern Water Solutions to undertake the water, recycled water and pressure sewer servicing infrastructure assessment and design for a proposed private water utility for a 5,500 lot residential development.

A detailed assessment of the water and sewer servicing strategy was required for the entire development to support the application through IPART for the creation of a private water utility to service the development.

The works required included preparation of concept feasibility assessment, preparation of a water balance report for the entire development, servicing masterplans for water, recycled water and sewerage, and design of a wastewater treatment plant to produce Class A+ recycled water for reuse within the development.

Hydraulic and net present value assessments were prepared to compare the proposed water and recycled water supply systems between a gravity fed and booster pump supply system.

Hydraulic design of a pressure sewer system was required for the entire development as traditional gravity sewer was not viable due to high groundwater and environmental constraints.