RFI -Attachment 6 - Geotechnical Investigation Report CORE

                                              EXPLANATION OF NOTES, ABBREVIATIONS & TERMS
                                              USED ON BOREHOLE AND TEST PIT REPORTS
DRILLING/EXCAVATION METHOD
AS       Auger Screwing                  RD             Rotary blade or drag bit                  NQ           Diamond Core - 47 mm
AD       Auger Drilling                  RT             Rotary Tricone bit                        NMLC         Diamond Core - 52 mm
*V       V - Bit                         RAB            Rotary Air Blast                          HQ           Diamond Core - 63 mm
T        TC - Bit, e.g. ADT              RC             Reverse Circulation                       HMLC         Diamond Core – 63mm
HA       Hand Auger                      PT             Push Tube                                 BH           Tractor Mounted Backhoe
ADH      Hollow Auger                    CT             Cable Tool Rig                            EX           Tracked Hydraulic Excavator
DTC      Diatubre Coring                 JET            Jetting                                   EE           Existing Excavation

WB       Washbore or Bailer              NDD            Non-destructive digging                   HAND         Excavated by Hand Methods

PENETRATION/EXCAVATION RESISTANCE
L        Low resistance . Rapid penetration possible with little effort from the equipment used
M        Medium resistance. Excavation possible at an acceptable rate with moderate effort from equipment used
H        High resistance to penetration/excavation. Further penetration is possible at a slow rate
R        Refusal or Practical Refusal. No further progress possible without the risk of damage or unacceptable wear to the digging implement
         or machine.
These assessments are subjective and are dependent on many factors including the equipment power, weight, condition of excavation or drilling tools,
and the experience of the operator.

WATER
                               Water level shown at date                                                 Partial water loss
                               Water inflow                                                              Complete water loss
GROUNDWATER NOT                The observation of groundwater whether present or not, was not possible due to drilling water, surface seepage or cave in
OBSERVED                       of the borehole/test pit.
GROUND WATER NOT               The borehole/test pit was dry soon after excavation. However, groundwater could be present in less permeable strata.
ENCOUNTERED                    Inflow may have been observed had the borehole/test pit been left open for a longer period.
SAMPLING AND TESTING
SPT                   Standard Penetration Test to AS1289.6.3.1-2004
4,7,11 N=18           4,7,11 = Blows per 150mm            N = Blows per 300mm penetration following 150mm seating
30/80mm                 Where practical refusal occurs, the blows and penetration for that interval are reported
RW                    Penetration occurred under the rod weight only
HW                    Penetration occurred under the hammer and rod weight only
HB                    Hammer double bouncing on anvil
DS                    Disturbed Sample
BDS                   Bulk disturbed sample
G                     Gas Sample
W                     Water sample
FP                    Field permeability test over section noted
FV                    Field vane shear test expressed as uncorrected shear strength (sv = peak value)
PID                   Photoionisation Detector reading in ppm
PM                    Pressuremeter test over section noted
PP                    Pocket penetrometer test expressed as instrument reading in kPa
U63                   Thin walled tube sample - number indicates nominal sample diameter in millimetres
WPT                   Water pressure tests
DCP                   Dynamic cone penetration test
CPT                   Dynamic cone penetration test

CPTu                  Static cone penetration test with pore pressure (u) measurement

ROCK CORE RECOVERY

        TCR = Total Core Recovery (%)                         SCR = Solid Core Recovery (%)                        RQD = Rock Quantity Designation (%)