Appendix C - Site & Soil Evaluation and Effluent Disposal Report

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[OCR of page images]
ON-SITE EFFLUENT DISPOSAL REPORT: Lot 1 RP 112348, 20 Woongar St, Boreen Point.
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 30/11/2021.

This assessment has been based upon the proposed plans, provided by the client.

Site description:

The allotment is located within the Noosa Council and is contained within a residential area.

The slope within the allotment is generally linear planar. 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:

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

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

v permeability, soil type and soil depth.

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

v general climate.

v 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
Adequate area for a Reserve area
Is there Adequate Soil Depth; depth above rock or the water table

Is the Soil Type Satisfactory

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Is the potential of runoff from the proposed area OK

Is there a potential for groundwater seepage V

AUSTRALIAN SOIL INVESTIGATIONS Page 2 of 6 ASI Ref: 210480(A)