On-Site Effluent Disposal Report

1.0          COMMISSION:

Our commission was to carry out Site Soil Assessment on the above site and make recommendations for the
disposal of domestic wastewater for the proposed lot reconfiguration. It is proposed to reconfigure Lot 43 on
RP136461 into allotments, namely Lots 1 & 2 The site work was performed in accordance with AS 1547-2012, on
the 10/8/2005.

The client has provided plans of the proposed lot subdivision.(Attached)


2.0          TESTING PROGRAMME:

The above site is located within the Noosa Shire.

During our site evaluation consideration was given to the following:

          • the available area for the primary siting of absorption areas and alternative sitings.

          • 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

Three test holes were excavated within each allotment 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.


3.0          SITE DESCRIPTION:

The allotment is vegetated with grasses and scattered low lying trees. All falls are towards the rear of the
allotment. The surface profile in lots 1 & 2 is linear planar . This profile then feeds into a seasonal creek at the rear
of the allotments .


3.1 GEOLOGY & TOPOGRAPHY

A desk top study of the site confirms the following:-

      -    The site is located in an area identified as Low Landslip Hazard’ on the Noosa Council’s Landslip Hazard
           Map




           AUSTRALIAN SOIL INVESTIGATION                       2                                         ASI Ref: 210264(A)