Reference Document - MCU24/0143 (As Published)

                                                                                                                                                                                                                                                                                                                                                                                                                                            Test Pit No.

                                                                                                                                                                                                                                                                                                                                                                                                                                                TP3
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                                                                                                                                                                                                                  Engineering Log - Test Pit                                                                                                                                Project No.:                     24378

                                                                                                                                                                                                                       Client:                                  RG Strategic                                                                                                Commenced:                       21/1/2025
                                                                                                                                                                                                                       Project Name:                            Retrospective Slope Stability Assessment                                                                    Completed:                       21/1/2025
                                                                                                                                                                                                                       Hole Location:                           637 Black Mountain Road, Black Mountain                                                                     Logged By:                       MCC
                                                                                                                                                                                                                       Hole Position:                           483305.0 m E 7077293.0 m N MGA2020 Zone 56                                                                  Checked By:                      ACD
                                                                                                                                                                                                                       Equipment Type and Model:                                   5.5t                                                                                     RL Surface:                 No survey
                                                                                                                                                                                                                       Excavation Dimensions:                                                                                                                               Datum:                      AHD       Operator:            Bebrok

                                                                                                                                                                                                                                         Excavation Information                                                                                            Material Description and Observations




                                                                                                                                                                                                                                                                                                                                                                                     Relative Density
                                                                                                                                                                                                                                                                                                            Classification
                                                                                                                                                                                                                                                                                                                                                                                                                          Shear
                                                                                                                                                                                                                           Penetration




                                                                                                                                                                                                                                                                                                                                                                                                          Pocket




                                                                                                                                                                                                                                                                                                                                                                                     Consistency
                                                                                                                                                                                                                                                                                              Graphic Log


                                                                                                                                                                                                                                                            Samples                                                                           Material Description                                                                          Structure and
                                                                                                                                                                                                                                                                                                                                                                                                        Penetrometer      Vane




                                                                                                                                                                                                                                                                                                                                                                                     Condition
                                                                                                                                                                                                                                                                      Recovery




                                                                                                                                                                                                                                                             Tests                                                              soil type: plasticity or particle characteristics,                                                            Additional




                                                                                                                                                                                                                                                                                                                                                                                     Moisture
                                                                                                                                                                                                                                                                                                                                                                                                           UCS             Test
                                                                                                                                                                                                                                                                                                            Symbol
                                                                                                                                                                                                                  Method




                                                                                                                                                                                                                                                                                                                                 secondary and minor components, colour                                                                     Observations
                                                                                                                                                                                                                                          Water




                                                                                                                                                                                                                                                            Remarks              RL Depth                                                                                                                  (kPa)          (kPa)
                                                                                                                                                                                                                                                                                 (m) (m)




                                                                                                                                                                                                                                                                                                                                                                                                         100
                                                                                                                                                                                                                                                                                                                                                                                                         200
                                                                                                                                                                                                                                                                                                                                                                                                         300
                                                                                                                                                                                                                                                                                                                                                                                                         400
                                                                                                                                                                                                                                                                                                                                                                                                         500
                                                                                                                                                                                                                                                                                                                                                                                                                        50 100150200
                                                                                                                                                                                                                                                                                                                               Silty CLAY (TOPSOIL), high plasticity, pale                     St 20                                   0.01: TOPSOIL
                                                                                                                                                                                                                                                                                                               CI              brown, with rootlets                                                                                    0.10: COLLUVIUM
                                                                                                                                                                                                                                                                                                                               Silty CLAY, medium plasticity, pale brown, red
                                                                                                                                                                                                                                                                                                                               brown, trace fine to coarse sized gravel
                                                                                                                                                                                                                                          Not Encountered




                                                                                                                                                                                                                                                                                                                                                                                      w<
                                                                                                                                                                                                                                                                                          1
                                                                                                                                                                                                                  EX




                                                                                                                                                                                                                                                                                                                               with phyllite cobbles                                  PL VSt




                                                                                                                                                                                                                                                                                                                               PHYLLITE, distinctly weathered, fine grained,                                                           1.50: ROCK
                                                                                                                                                                                                                                                                                                                               pale grey, red brown, very low strength,
                                                                                                                                                                                                                                                                                                                               heavily fractured to form pieces <300mm,
                                                                                                                                                                                                                                                                                                                               thinly folated
                                                                                                                                                                                                                                                                                          2
       TECTONIC 3.00.2 LIB.GLB Log 1 TECTONIC BOREHOLE 24378.GPJ <<DrawingFile>> 4/2/2025 10:19 10.02.00.04 Datgel Lab and In Situ Tool - DGD | Lib: Tectonic 3.00.2 2021-03-30 Prj: Tectonic 3.00.2 2021-03-30




                                                                                                                                                                                                                                                                                                                               Hole Terminated at 2.00 m
                                                                                                                                                                                                                                                                                                                               Target depth




                                                                                                                                                                                                                                                                                          3




                                                                                                                                                                                                                                                                                          4




                                                                                                                                                                                                                                                                                          5




                                                                                                                                                                                                                            Method                                        Penetration                                         Water                    Samples and Tests                        Moisture Condition            Consistency/Relative Density
                                                                                                                                                                                                                       N - Natural Exposure                                       VE - Very Easy                             Level (Date)       U## - Undisturbed Sample (## mm)                    D - Dry                       VS - Very Soft
                                                                                                                                                                                                                       X - Existing Excavation                                    E - Easy                                                      DS - Disturbed Sample                               M - Moist                     S - Soft
                                                                                                                                                                                                                       BH - Backhoe Bucket                                                                                   Inflow             BDS- Bulk Disturbed Sample                          W - Wet                       F - Firm
                                                                                                                                                                                                                       R - Ripper                                                 F - Firm                                                                                                                                        VSt - Very Stiff
                                                                                                                                                                                                                       EX - Excavator                                             H - Hard                                                                                                                                        H - Hard
                                                                                                                                                                                                                       RH - Rock Hammer                                           VH - Very hard                                                                                                                                  VL - Very Loose
                                                                                                                                                                                                                                                                                                                                                                                                        Plastic Limit
                                                                                                                                                                                                                                                                                                                                                                                                                                  L   - Loose
                                                                                                                                                                                                                                                                                                                                                       Classification Symbols                              < PL                   MD - Medium Dense
                                                                                                                                                                                                                                                                                                                                                       and Soil Descriptions                               = PL                   D - Dense
                                                                                                                                                                                                                                                                                                                                                        Based on Unified Soil                              < PL                   VD - Very Dense
                                                                                                                                                                                                                                                                                                                                                        Classification System                                                     Fr - Friable



Document Set ID: 24125427
                  24010296
Version: 1, Version Date: 17/09/2025
                          07/08/2025