Compiled Reference Document - MCU25/0020 (As Published)

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Tectonic Geotechnical Pty Ltd                                                                                                Site Number 20794 & 2780

924 David Low Way                                                                                                            Accredited for compliance with ISO/IEC 17025 – Testing
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Attention:                     Michael Cocks


Report                         1189604-S
Project name                   25040
Project ID                     11 RAVENWOOD DRIVE
Received Date                  Feb 19, 2025


                                                                                                                                     BH1 0.75-1.00
Client Sample ID                                                                        BH1 0.0-0.25 M BH1 0.25-0.5 M BH1 0.5-0.75 M M
Sample Matrix                                                                           Soil           Soil           Soil           Soil
Eurofins Sample No.                                                                     B25-Fe0047930 B25-Fe0047931 B25-Fe0047932 B25-Fe0047933
Date Sampled                                                                            Feb 18, 2025         Feb 18, 2025    Feb 18, 2025                Feb 18, 2025
Test/Reference                                                 LOR           Unit
Acid Sulfate Soils Field pH Test
pH-F (Field pH test)*                                           0.1        pH Units             6.9                   6.5               6.9                        5.8
pH-FOX (Field pH Peroxide test)*                                0.1        pH Units             3.2                   2.8               2.8                        2.2
Reaction Ratings*S05                                             0         comment              4.0                   4.0               4.0                        4.0



                                                                                        BH1 1.00-1.25
Client Sample ID                                                                        M                    BH1 1.25-1.5 M BH1 1.5-1.75 M BH1 1.75-2.0 M
Sample Matrix                                                                           Soil                 Soil           Soil           Soil
Eurofins Sample No.                                                                     B25-Fe0047934 B25-Fe0047935 B25-Fe0047936 B25-Fe0047937
Date Sampled                                                                            Feb 18, 2025         Feb 18, 2025    Feb 18, 2025                Feb 18, 2025
Test/Reference                                                 LOR           Unit
Acid Sulfate Soils Field pH Test
pH-F (Field pH test)*                                           0.1        pH Units             7.5                   8.6               11                         11
pH-FOX (Field pH Peroxide test)*                                0.1        pH Units             3.0                   6.0               8.7                        11
Reaction Ratings*S05                                             0         comment              4.0                   4.0               4.0                        4.0
Actual Acidity (NLM-3.2)
pH-KCL (NLM-3.1)                                                0.1        pH Units              -                   8.9                  -                          -
Titratable Actual Acidity (NLM-3.2)                              2         mol H+/t              -                   <2                   -                          -
Titratable Actual Acidity (NLM-3.2)                            0.003       % pyrite S            -                 < 0.003                -                          -
Potential Acidity - Chromium Reducible Sulfur
Chromium Reducible Sulfur (s-SCr) (NLM-2.1)S04                 0.005        %S                   -                  0.083                 -                          -
Chromium Reducible Sulfur (a-SCr) (NLM-2.1)                      3         mol H+/t              -                    52                  -                          -
Extractable Sulfur
Sulfur - KCl Extractable                                       0.005         %S                  -                  0.020                 -                          -
HCl Extractable Sulfur                                         0.005         %S                  -                   N/A                  -                          -
Retained Acidity (S-NAS)
Net Acid soluble sulfur (SNAS) NLM-4.1                         0.005         %S                  -                    N/A                 -                          -
Net Acid soluble sulfur (s-SNAS) NLM-4.1S02                    0.005         %S                  -                    N/A                 -                          -
Net Acid soluble sulfur (a-SNAS) NLM-4.1                         2         mol H+/t              -                    N/A                 -                          -
HCl Extractable Sulfur Correction Factor                         1          factor               -                    2.0                 -                          -
Acid Neutralising Capacity (ANCbt)
Acid Neutralising Capacity - (ANCbt) (NLM-5.2)                  0.01       % CaCO3               -                   0.33                 -                          -
Acid Neutralising Capacity - (s-ANCbt) (NLM-5.2)S03             0.02         %S                  -                   0.10                 -                          -
Acid Neutralising Capacity - (a-ANCbt) (NLM-5.2)                  2        mol H+/t              -                    65                  -                          -
ANC Fineness Factor                                                         factor               -                   1.5                  -                          -



                                        Eurofins Environment Testing 1/21 Smallwood Place, Murarrie, QLD, Australia 4172                                    Page 1 of 15

 Date Reported: Feb 25, 2025                              ABN : 50 005 085 521 Tel: +61 7 3902 4600                                       Report Number: 1189604-S