Appendix C - Effluent Disposal Report · MCU26/0099

ON-SITE EFFLUENT DISPOSAL REPORT:

Introduction:

Australian Soil Investigations have conducted a Site and Soil Assessment at the above allotment for the purpose
of determining the most suitable means of on-site effluent disposal. On-site testing for this assessment was
performed in accordance with AS 1547-2012-“On-Site Domestic Wastewater Management and the Queensland
Plumbing and Wastewater Code. Field work for this assessment was undertaken, on the 16/04/2025.
ASI has been asked to provide a design for a two bedroom dwelling.

Site description:

The allotment is located within the Noosa Regional Council and is contained within a rural residential area.
The slope within the allotment is generally linear. The slope within the area best suited for effluent disposal is in
the order of 4%.

On-Site Assessment:

During our site evaluation consideration was given to the following:

       the available area for the primary siting of absorption areas (Land Application Area) and alternative
        sightings.

       the risk of prejudicing adjoining property and underground water supplies, by seepage or run off from
        the site.

       permeability, soil type and soil depth.

       drainage, and envisaged seasonal changes in ground water level.

       general climate.

       slope and the effects of seepage and water run-off from surrounding higher ground.

On-Site Testing:

Three test holes were excavated in the positions shown in the attached site sketch. These holes were 100mm
diameter x 600 mm deep for the purpose of site soil assessment in accordance with the AS 1547-2012. A
further 100mm diameter hole was excavated to determine the soil profile. The site was then classified in
accordance with AS 1547–2012 On-Site Wastewater Management for the purposes of effluent disposal.

Results:

Site Observations
                                                                                    Yes              No

Suitable Area for siting a Land Application Area                                      

Setback requirements to waterways                                                         

Adequate area for a Reserve area                                                      

Is there Adequate Soil Depth above rock or the water table                            

Is the Soil Type Satisfactory                                                         

Is the potential of runoff from the proposed area OK                                  

Is there a potential for groundwater seepage                                                          



AUSTRALIAN SOIL INVESTIGATIONS                       Page 2 of 6                              ASI Ref: 260176 (A)Rev-A