ECM_22343520_v1_Geotechnical Investigation

                                                           PROPOSED RENOVATIONS
                                                           2 ARAKOON CRESCENT, SUNSHINE BEACH

            TABLES
            Table 1: Stability Risk Levels ............................................................................................................................................ 10

            Table 2: Details of Qualitative Risk Assessment for Property (AGS 2007) ....................................................................... 10

            Table 3: Retaining Structure Design Parameters .............................................................................................................. 18



            TEXT FIGURES
            Text Figure 1: Proposed layout plan (upper) and some cross-sectional views (lower) courtesy of Aboda Design
                      Group ................................................................................................................................................................. 2

            Text Figure 2: Aerial image of the site and surrounds (courtesy of Noosa Council ‘intra-maps’) ........................................ 4

            Text Figure 3: Oblique Tectonic drone image looking north ................................................................................................ 4

            Text Figure 4: Drone image looking due west over dune in vicinity of site .......................................................................... 5

            Text Figure 5: Westerly view of the residence from high dune crest ................................................................................... 5

            Text Figure 6: Detailed survey of the site and high dune, courtesy of Minestaff Survey ..................................................... 6

            Text Figure 7: Tectonic drone image of the dune face and main beach looking north ........................................................ 7

            Text Figure 8: Extract of Laguna Bay 1:100,000 Scale Surface Geology Map.................................................................... 7

            Text Figure 9: Scour in the southern part of the site (LHS) and bulging coir log (RHS) ...................................................... 9

            Text Figure 10: Extract from Noosa Council landslide hazard overlay mapping ................................................................. 9

            Text Figure 11: Geological model of the site and high dune, including extreme storm event scenario ............................. 12

            Text Figure 12: Slope/W output for the proposed development ........................................................................................ 13

            Text Figure 13: Footing depth required to prevent undermining........................................................................................ 17



            FIGURES
            Figure 1: Site Plan



            APPENDICES
            APPENDIX A
            DCP Reports

            APPENDIX B
            AGS Guidelines – Qualitative Terminology for Use in Assessing Risk to Property
            Some Guidelines for Hillside Construciton

            APPENDIX C
            Limitations




             24 February 2023
             Report No. 22484-001-Rev0                                                              v
Document Set ID: 22343520
Version: 1, Version Date: 16/03/2023