A Consultant Waste Water Report is required for all applications to install, and also for the alteration of systems in high and medium risk areas. This is to ensure:
- the system is designed to suit its environment
- the system will operate efficiently and last longer
- the system will meet State guidelines.
Consultant Waste Water Report
The information contained in this report must meet the requirements of Council’s Code 17 On-Site Sewage Management for Domestic Premises, Australian Standard 1547:2012 (refer to link below) and must address the following points:
- An estimation of expected daily flow and the basis for this calculation,
- Soil Permeability and Site Assessment Data,
- Number, location and data for all test pits,
- Identified Site & Soil limitations including any recommendations regarding enhancement techniques to vary unsatisfactory soil conditions,
- Identification of seeps, weeps and inherently wet areas on the site, where surface and/or subsurface disposal of effluent is not applicable,
- A list of the types of on-site sewage management systems that the Report deems as appropriate for the site,
- A statement of options that have been deemed on the basis of the findings of the Report as not appropriate for the site,
- Effluent disposal system recommendations including design bases and details,
- Calculation tables for effluent disposal area design indicating the parameters used for climate data including quoting the reference source,
- A plan of the site, showing boundaries and neighbouring dwellings or other sensitive receptors,
- Plan giving the site's general location,
- A plan showing the layout of the recommended disposal areas on the site including proposed lines, distributors, valves, storage requirements.
Details of the Effluent Disposal System
The site plan should show:
- The outline of the boundaries of the site
- The use of the adjoining property on each side (e.g. rural dwelling, road, reserve, etc)
- The location of all buildings proposed to be constructed on the property including all proposed: pools, outdoor spas, recreational areas, paths, gardens and landscaping, and sheds.
- Any rivers, creeks, drainage gullies, dams or environmentally sensitive areas
The plan of the effluent disposal area should show:
- The size of the effluent disposal area is not to be less than that recommended by the Geotechnical report for the selected option, unless approved through prior discussions with Council.
- When providing this information, refer to the required buffer setbacks.
Details of the system to be used:
- Information on the type, make and model of the treatment system. Further information and a list of approved treatment systems can be found at NSW Health's website.
- Information on type of surface sprays, their number and their location, or the details of sub-surface disposal methods including the manner of distribution to the sub-surface,
- Details of distributing the effluent evenly to all parts of the disposal area,
- Where raised garden beds are required, construction details of the beds, method of effluent disposal, including the number of distribution devices must be provided.
This page was last updated on: 30 October 2019