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City of Wollongong
Resident Visitor Business

Make sure you have the following information ready before you apply to Council for approval to install or operate an on-site sewage system.

  • An accreditation number from NSW Health
  • The full manufacturer’s specifications for your system
  • Scaled plans of the system, including vertical section
  • For a pump-out system, a basic site layout showing the distance to builidings, infrastructure and ease of access
  • For non pump-out systems, a site plan at 1:200 scale showing:
    • Property boundaries, buildings and other infrastructure like paths, decking, retaining walls, pools, etc
    • Physical features of the site such as rock outcrops, vegetations, watercourses (including drainage lines and dams), and slope magnitude and direction
    • The location of any existing and proposed new effluent management infrastructure, including tanks, disposal ares, Effluent Application Field (EAF) and Ecologically Sustainable Development (ESD) areas
    • The disposal field layout within the EAF area, showing buffer distances to any relevant features on the site
    • The location of test pits within the EAF.
  • For non pump-out systems, an Onsite Wastewater Management Report that includes:
    • A description of the soil depth, type, stability, presence of acid sulphate soils and drainage
    • Water table level
    • Average land slope
    • Flood levels
    • Site drainage
    • Environmentally Sensitive Areas
    • Physical description of the treatment system and the suitability of the disposal or recycling option based on the Rapid Evaluation Procedure for On-Site Wastewater Management. You can find details of this evaluation process in the Wollongong Development Control Plan. (Ch E8)