Compiled Reference Documents - MCU25/0091 (As Published)

            Wingara Hills Pty Ltd


            Table of Contents

            1.0       INTRODUCTION ...................................................................................................................... 1
            2.0       PROPOSED DEVELOPMENT ................................................................................................. 1
            3.0       SITE DESCRIPTION ................................................................................................................ 1
            4.0       METHOD OF INVESTIGATION ............................................................................................... 3
            4.1       Walkover Survey and Subsurface Investigation ....................................................................... 3
            4.2       Fieldwork .................................................................................................................................. 3
            4.3       Geotechnical laboratory testing ................................................................................................ 4
            5.0       RESULTS OF INVESTIGATION .............................................................................................. 4
            5.1       Published Geological Information ............................................................................................. 4
            5.2       Subsurface conditions .............................................................................................................. 5
            5.3       Topography ............................................................................................................................... 5
            5.4       Surface Drainage ...................................................................................................................... 6
            5.5       Vegetation ................................................................................................................................. 6
            5.6       Buildings, Other Structures, etc. ............................................................................................... 6
            6.0       ASSESSMENT OF LAND STABILITY ..................................................................................... 6
            6.1       Existing Conditions ................................................................................................................... 6
            6.2       Stability Risk Assessment ........................................................................................................ 7
            7.0       DEVELOPMENT IMPACTS & MITIGATION MEASURES....................................................... 8
            7.1       Earthworks ................................................................................................................................ 8
            7.1.1     Site Preparation & Trafficability ................................................................................................ 8
            7.1.2     Excavations .............................................................................................................................. 8
            7.1.3     Batter Slopes ............................................................................................................................ 8
            7.1.4     Erosion Protection .................................................................................................................... 9
            7.2       Retaining Structures ................................................................................................................. 9
            7.3       Footings .................................................................................................................................... 9
            7.3.1     Site Classification ................................................................................................................... 10
            7.3.2     High Level Footings and Piers ................................................................................................ 10
            7.4       Drainage ................................................................................................................................. 11
            7.5       General Foundation Maintenance .......................................................................................... 11
            8.0       WASTEWATER TREATMENT AND DISPOSAL ................................................................... 12
            8.1       Wastewater Flow Design Allowance ...................................................................................... 12
            8.2       Terrain-Soil Assessment ........................................................................................................ 12
            8.3       Recommendations .................................................................................................................. 12
            8.3.1     System Construction............................................................................................................... 13
            9.0       SUMMARY AND CONCLUSIONS ......................................................................................... 14
            10.0      LIMITATIONS ......................................................................................................................... 14




            J002915-001-R-Rev0                                                      i

Document Set ID: 24031832
Version: 1, Version Date: 14/08/2025