Reference Document - RAL25/0020 & OPW25/0194 (As Published)

                                                                                                                                        Certificate of Analysis




                                                                                                                                        NATA Accredited
                                                                                                                                        Accreditation Number 1261
Douglas Partners Pty Ltd                                                                                                                Site Number 20794 & 2780

Unit 2/ 54 Turbo Drive                                                                                                                  Accredited for compliance with ISO/IEC 17025 – Testing
                                                                                                                                        NATA is a signatory to the ILAC Mutual Recognition
Coorparoo                                                                                                                               Arrangement for the mutual recognition of the
                                                                                                                                        equivalence of testing, medical testing, calibration,
QLD 4151                                                                                                                                inspection, proficiency testing scheme providers and
                                                                                                                                        reference materials producers reports and certificates.




Attention:                     Brett Egen


Report                         1266051-S
Project name                   12-14 GYMPIE ST TEWANTIN
Project ID                     237894.00
Received Date                  Sep 09, 2025


                                                                                           BORE 1 0.0-            BORE 1 0.25-          BORE 1 0.5-                 BORE 1 0.75-
Client Sample ID                                                                           0.25M                  0.5M                  0.75M                       1.0M
Sample Matrix                                                                              Soil                   Soil                  Soil                        Soil
                                                                                           B25-                   B25-                  B25-                        B25-
Eurofins Sample No.                                                                        Se0027862              Se0027863             Se0027864                   Se0027865
Date Sampled                                                                               Sep 08, 2025           Sep 08, 2025          Sep 08, 2025                Sep 08, 2025
Test/Reference                                                     LOR           Unit
Acid Sulfate Soils Field pH Test
pH-F (Field pH test)*                                               0.1        pH Units             6.1                    4.9                     4.7                        4.7
pH-FOX (Field pH Peroxide test)*                                    0.1        pH Units             3.3                    4.1                     4.0                        4.0
Reaction Ratings*S05                                                 0              -               3.0                    3.0                     2.0                        2.0



                                                                                           BORE 1 1.0-            BORE 1 1.25-          BORE 1 1.5-                 BORE 1 1.75-
Client Sample ID                                                                           1.25M                  1.5M                  1.75M                       2.0M
Sample Matrix                                                                              Soil                   Soil                  Soil                        Soil
                                                                                           B25-                   B25-                  B25-                        B25-
Eurofins Sample No.                                                                        Se0027866              Se0027867             Se0027868                   Se0027869
Date Sampled                                                                               Sep 08, 2025           Sep 08, 2025          Sep 08, 2025                Sep 08, 2025
Test/Reference                                                     LOR           Unit
Acid Sulfate Soils Field pH Test
pH-F (Field pH test)*                                               0.1        pH Units             4.6                    4.6                     4.6                        4.6
pH-FOX (Field pH Peroxide test)*                                    0.1        pH Units             3.9                    3.9                     3.8                        3.8
Reaction Ratings*S05                                                 0              -               2.0                    2.0                     2.0                        2.0



                                                                                           BORE 2 0.0-            BORE 2 0.25-          BORE 2 0.5-                 BORE 2 0.75-
Client Sample ID                                                                           0.25M                  0.5M                  0.75M                       1.0M
Sample Matrix                                                                              Soil                   Soil                  Soil                        Soil
                                                                                           B25-                   B25-                  B25-                        B25-
Eurofins Sample No.                                                                        Se0027870              Se0027871             Se0027872                   Se0027873
Date Sampled                                                                               Sep 08, 2025           Sep 08, 2025          Sep 08, 2025                Sep 08, 2025
Test/Reference                                                     LOR           Unit
Acid Sulfate Soils Field pH Test
pH-F (Field pH test)*                                               0.1        pH Units             5.5                    5.1                     4.9                        4.8
pH-FOX (Field pH Peroxide test)*                                    0.1        pH Units             3.6                    3.8                     4.0                        4.0
Reaction Ratings*S05                                                 0              -               3.0                    3.0                     2.0                        2.0




                                   Eurofins Environment Testing Australia Pty Ltd 1/21 Smallwood Place, Murarrie, QLD, Australia 4172                                  Page 1 of 11

 Date Reported: Sep 10, 2025                                  ABN : 50 005 085 521 Tel: +61 7 3902 4600                                              Report Number: 1266051-S