Compiled Reference Documents - EXE250036 (As Published) · EXE25/0036

J002910-001-L-Rev0
28 July 2025




Image 3: Sections - Cocomo Home Designs – Project No. 25055 - 27 Seaview Terrace, Sunshine Beach, Dwg No.
A.400 – Rev C – 15 July 25.

It is anticipated that the proposed works will require minor earthworks for pool footings and associated
services. No filling is proposed.

Based on our observations, we anticipate the existing residence is supported on bored piers or shallow
strip/pad footing systems founded in the underlying extremely weathered sandstone.
Method and Scope of Investigation
As part of our geotechnical assessment, a desktop study was carried out comprising a review of the
published geological maps of the area and the Noosa Council (NC) Landslide Hazard overlay maps.

Following the desktop study, a walkover survey was conducted to make an appraisal of the general condition
of the site, including an assessment of topography, drainage, vegetation cover, geology, erosion, and slope
stability. The walkover survey was carried out by an experienced engineering geologist from Core on
22 July 2025.

The results of the desktop study and walkover survey are given below.

RESULTS OF ASSESSMENT
Geology and Subsurface Conditions
The Queensland Geotechnical Database (QGD) mapping indicates that the site is underlain by Pleistocene
age “Quartz sand; parabolic sand dunes”. However, our investigation (hand auger) results align more closely
with the ‘inferred’ underlying early to middle Jurassic age Tiaro Coal Measures (Jdt) comprising
predominantly “Lithofeldspathic labile and sub-labile to quartzose sandstone, siltstone, shale, coal,
ferruginous oolite marker”. An extract from the geology map is shown in Image 4 below.




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