Attachment 5 - Geotechnical Assessment · MCU18/0015

J000128-001-L-Rev0
8 October 2015



Results
The site walk-over indicates that geotechnical conditions have not visibly changed since the 2003
investigation.
The ground conditions encountered in the boreholes in the western portion comprised about 0.3 m to 0.7 m of
very loose sand, then becoming loose. DCP testing indicates inferred medium dense sand from about 1 m
depth, becoming dense from about 2 m BGL.
No groundwater was encountered in the boreholes at the time of the investigation.
Recommendations
Considering that geotechnical conditions do not appear to have changed since the 2003 investigation, and that
the ground conditions encountered in the western portion are consistent with those encountered in adjacent
areas during the 2003 investigation, the recommendations in the Golder 2003 geotechnical report remain
applicable for the proposed development.
We anticipate that foundation conditions for proposed structures in the western portion of the development will
comprise deep sand. Footings supporting such structures will need to penetrate through the loose sand to
found in the underlying medium dense (or denser) sand.
A geotechnical engineer from Core must inspect footing excavations during construction to confirm the
founding conditions and design parameters (given in the attached Golder report).
The slope stability assessment and geotechnical advice on earthworks, retaining structures, footings,
pavement design, drainage & erosion, and construction management remain as per the attached Golder
geotechnical report (03632248-001).
Limitations
Your attention is drawn to the document, Limitations which is attached.

Yours sincerely,
CORE CONSULTANTS PTY LTD




Walter Mastenbroek                                               Geoff Hurley
MEngPr MSc BSc (Hons) PMP MIEAust CPEng RPEQ                     MSc DIC C.Geol RPEQ 5716
Senior Geotechnical Engineer                                     Director


WM/GAH/wm



Attachments:     Figure 1
                 Photograph 1
                 Borehole reports and explanatory notes
                 Golder Associates report 03632248-001
                 Limitations




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