Geotechnical Report Dec 2013 Revision 1

                              55 LAKE MACDONALD DRIVE, COOROY




                                                                                            Wet, very loose sand



                                                                                            Silty clay




Text Figure 9: Test pit TP8




                                                                Logs within topsoil layer




Text Figure 10: Spoil from test pit TP12

Hand auger boreholes HA1 and HA2 encountered wet, very loose silty sand topsoil to about 0.1m to 0.2m
depth BGL over wet, soft silty clay, becoming firm at about 0.5m BGL, and stiff (or stiffer) at about 0.8m BGL.

At test pit TP8, stiff clay (PP=100kPa) was encountered at about 0.5m BGL, which is where the DCP test
indicated 1 to 2 blows per 100mm penetration. Similar results were noted for the DCP tests at HA1 and HA2,


2 December 2013
Report N0. 13008-001-Rev1                              8