Attachment 4 - Geotech Report · MCU23/0030

                             50 NOOSA PARADE, NOOSA HEADS
                             PROPOSED RESIDENCE



1.0             INTRODUCTION
This report details the results of a geotechnical and acid sulfate soil (ASS) investigation undertaken for a
proposed residence at 50 Noosa Parade, Noosa Heads. The investigation was performed by Tectonic for
Adrian Puljich, generally in accordance with Proposal P22770-Rev0 dated 2 December 2022. Innovative
Planning Solutions Pty Ltd (IPS) are the town planners for the project.
The investigation comprised the drilling of boreholes at two locations in accessible areas, with subsequent
environmental and geotechnical laboratory testing. This report summarises the results of the investigation
and provides geotechnical recommendations regarding earthworks, footings, retaining walls and
groundwater management, together with an assessment of the extent and severity of ASS. Management
advice is also provided to mitigate the potential ASS risk posed by site development during construction.


2.0             PROPOSED DEVELOPMENT
Proposed development of the site comprises the demolition of the existing residential structure and
construction of a new two-storey residence over a single level basement. An inground pool is proposed in
the north-eastern corner of the site. Preliminary architectural drawings prepared Jared Poole Design
(Drawing No. BP1373/SK, 1.01-1.06, dated October 2022) indicate that basement construction will require
excavations up to about 3 m deep below ground level (BGL) across an approximate 330 m2 area.
Construction of the proposed swimming pool will also require excavations of up to about 2 m deep across an
approximate 25 m2 area. These works will result in an estimated 1000 m³ of material to be excavated and
removed from site.
The basement will extend to within about 1.5 m of the eastern and western boundaries and will be set back
approximately 3 m from the revetment wall along the river to the north. The pool is expected to be located
within about 0.5 m of the eastern boundary and will also be set back approximately 3 m from the revetment
wall. No alteration to the existing revetment is currently proposed.
Text Figures 1 and 2 (below and overleaf) show the proposed site layout and basement level.
  NOOSA RIVER




Text Figure 1: Proposed site layout (JPD, Dwg No. BP1373/SK/1.03)



2 February 2023
Report No. 22500-001-Rev0                              1