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

                            1 REPORT SCOPE                                                                                                                                         4
                            2 SITE DESCRIPTION                                                                                                                                     4
                            3 REGIONAL GEOLOGY                                                                                                                                     5
                            4 PROJECT CONSTRUCTION OVERVIEW                                                                                                                        6
                            5 FIELD INVESTIGATION                                                                                                                                  6
              CONTENTS
                            6 GEOTECHNICAL MODEL                                                                                                                                   6
                            7 LABORATORY TESTING AND RESULTS                                                                                                                       7
                            8 ACID SULFATE SOILS COMMENTS                                                                                                                         10
                            9 GEOTECHNICAL COMMENTS                                                                                                                               12
                                SITE CLASSIFICATION AND SITE MOVEMENTS                                                                                                            12
                                FOUNDATIONS                                                                                                                                       12
                            9.2.1 HIGH LEVEL FOUNDATIONS                                                                                                                          12
                            9.2.2 PILED FOUNDATIONS                                                                                                                               12
                                RETAINING WALL PARAMETERS                                                                                                                         13
                            10 LIMITATIONS                                                                                                                                        14



                            TABLES
                            Table 1: Summary of Materials Encountered in Boreholes ................................................................................................ 7
                            Table 2: Field pH (pHF) and Field pH Peroxide (pHFOX) Screening Results ....................................................................... 7
                            Table 3: Summary of Chromium Reducible Sulphur (CRS) test results ......................................................................... 10
                            Table 4: Summary of possible PASS, based on initial pHF and pHFOX screening. .......................................................... 11
                            Table 5: Action Criteria Thresholds for Soil-Lime Treatment ............................................................................................ 11
                            Table 6: Allowable Bearing Pressures for High Level Footings ........................................................................................ 12
                            Table 7: Ultimate Geotechnical Design Parameters for Bored or Driven Piles ........................................................... 13
                            Table 8: Geotechnical Parameters for Retaining Wall Design ......................................................................................... 13



                            APPENDICES
                            Appendix 1              Test Location Plan
                            Appendix 2              Borehole Logs
                            Appendix 3              Laboratory Testing




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