Reference Document - Geotechnical Investigation Report MCU25/0053 & OPW25/0074

    Page                        : 5 of 6
    Work Order                  : EB2503423
    Client                      : PTG Consulting Pty Ltd
    Project                     : PTG/01608 7 Noosa Pde

     Analytical Results
     Sub-Matrix: SOIL                                                           Sample ID      BH3 2.0 - 2.25      BH3 3.5 - 3.75      BH3 3.75 - 4.0      BH3 4.25 - 4.5      BH4 1.0 - 1.25
     (Matrix: SOIL)
                                                                       Sampling date / time   23-Jan-2025 00:00   23-Jan-2025 00:00   23-Jan-2025 00:00   23-Jan-2025 00:00   23-Jan-2025 00:00
      Compound                                         CAS Number     LOR          Unit        EB2503423-011       EB2503423-012       EB2503423-013       EB2503423-014       EB2503423-015
                                                                                                   Result               Result             Result               Result              Result

      EA033-A: Actual Acidity
        pH KCl (23A)                                           ----    0.1       pH Unit           6.2                 5.6                 5.2                 5.4                 6.1

        Titratable Actual Acidity (23F)                        ----    2        mole H+ / t        <2                   4                   6                   4                   2

        sulfidic - Titratable Actual Acidity (s-23F)           ----   0.02      % pyrite S        <0.02               <0.02               <0.02               <0.02               <0.02

      EA033-B: Potential Acidity
        Chromium Reducible Sulfur (22B)                        ----   0.005        %S             0.022               0.020               0.194               0.094               0.024

        acidity - Chromium Reducible Sulfur                    ----    10       mole H+ / t        14                  12                  121                 58                   15
        (a-22B)
      EA033-E: Acid Base Accounting
        ANC Fineness Factor                                    ----    0.5           -             1.5                 1.5                 1.5                 1.5                 1.5

        Net Acidity (sulfur units)                             ----   0.02         %S             0.02                 0.02               0.20                 0.10                0.03

        Net Acidity (acidity units)                            ----    10       mole H+ / t        14                  16                  128                 63                   17

        Liming Rate                                            ----    1       kg CaCO3/t           1                   1                  10                   5                   1

        Net Acidity excluding ANC (sulfur units)               ----   0.02         %S             0.02                 0.02               0.20                 0.10                0.03

        Net Acidity excluding ANC (acidity units)              ----    10       mole H+ / t        14                  16                  128                 63                   17

        Liming Rate excluding ANC                              ----    1       kg CaCO3/t           1                   1                  10                   5                   1




Document Set ID: 24149758
Version: 1, Version Date: 26/09/2025