Additional Geotech Investigation 22.02.01 From Douglas Partners - 95120.01.R.001 · OPW21/0315

Page                        : 3 of 4
Work Order                  : EB2202062
Client                      : DOUGLAS PARTNERS PTY LTD
Project                     : 33 Wyuna Drive, Noosaville

Analytical Results
Sub-Matrix: SOIL                                                           Sample ID     Bore 2 2.25-2.5m    Bore 2 3.5-3.75m    Bore 3 0.75-1.0m    Bore 3 3.0-3.25m    Bore 4 1.0-1.25m
(Matrix: SOIL)
                                                                  Sampling date / time   22-Dec-2021 00:00   22-Dec-2021 00:00   22-Dec-2021 00:00   22-Dec-2021 00:00   22-Dec-2021 00:00
 Compound                                         CAS Number     LOR          Unit        EB2202062-001       EB2202062-002       EB2202062-003       EB2202062-004       EB2202062-005
                                                                                              Result               Result             Result               Result              Result

 EA033-A: Actual Acidity
   pH KCl (23A)                                           ----    0.1       pH Unit           5.7                 5.9                 6.3                 7.3                 9.5
   Titratable Actual Acidity (23F)                        ----    2        mole H+ / t         2                  <2                  <2                  <2                   <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             0.014               0.022               0.013               0.035               0.037
   acidity - Chromium Reducible Sulfur                    ----    10       mole H+ / t        <10                 13                  <10                  22                  23
   (a-22B)
 EA033-C: Acid Neutralising Capacity
   Acid Neutralising Capacity (19A2)                      ----   0.01      % CaCO3            ----                ----                ----                0.51                1.09
   acidity - Acid Neutralising Capacity                   ----    10       mole H+ / t        ----                ----                ----                101                 217
   (a-19A2)
   sulfidic - Acid Neutralising Capacity                  ----   0.01      % pyrite S         ----                ----                ----                0.16                0.35
   (s-19A2)
 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               <0.02               <0.02               <0.02
   Net Acidity (acidity units)                            ----    10       mole H+ / t        11                  13                  <10                 <10                 <10
   Liming Rate                                            ----    1       kg CaCO3/t          <1                   1                  <1                  <1                   <1
   Net Acidity excluding ANC (sulfur units)               ----   0.02         %S             <0.02                0.02               <0.02                0.04                0.04
   Net Acidity excluding ANC (acidity units)              ----    10       mole H+ / t        11                  13                  <10                  22                  23
   Liming Rate excluding ANC                              ----    1       kg CaCO3/t          <1                   1                  <1                   2                   2