Response to outstanding issues - Revised Geo-Environmental Investigation-compressed · MCU25/0020

                   8.2.2  Record Keeping ..................................................................................................................................... 23
         8.3       Management of Groundwater & In Situ ASS ............................................................................................... 23
         8.4       Water Quality Management ............................................................................................................................... 24
9.       Limitations ............................................................................................................................................................ 24

Tables
Table 1: Summary of Subsurface Profiles............................................................................................................................... 8
Table 2: Summary of Groundwater Monitoring.................................................................................................................... 8
Table 3: Summary of Aggressivity Laboratory Results ....................................................................................................... 9
Table 4: Retaining Structure Design Parameters ................................................................................................................ 14
Table 5: Estimated Settlements Under Raft Slab ................................................................................................................ 15
Table 6: Water Quality Release Criteria .................................................................................................................................. 24

Text Figures
Text Figure 1: Proposed layout plan (upper) and cross-sectional view (lower) courtesy CCD ........................... 2
Text Figure 2: 2025 aerial image of the site and surrounds (courtesy of Nearmap imagery) ............................. 3
Text Figure 3: Oblique drone image of the site looking west, drilling borehole BH2 ............................................ 4
Text Figure 4: Oblique drone image of the site and surrounds, looking east........................................................... 4
Text Figure 5: Views along the existing revetment wall crest, looking south (LHS) and north (RHS) .............. 5
Text Figure 6: Easterly view of the site, drilling borehole BH1 ........................................................................................ 5
Text Figure 7: Extract from Laguna Bay Surface Geology Map ....................................................................................... 7
Text Figure 8: Settle 3D output of Total Settlement ......................................................................................................... 15
Text Figure 9: Zone of influence diagrams – footings to be founded below these lines.................................... 17
Text Figure 10: Extract from Redcliffe to Teewah Acid Sulfate Soils Map 2 (NR&M-SEA-I-A0 3261) ............ 20

Appendices
Appendix A                   Borehole Logs & Explanatory Notes
Appendix B                   ASS Summary Table B1 & Environmental Laboratory Test Certificates
Appendix C                   Limitations

Figures
Figure 1: Site Plan




Geo-environmental Investigation Proposed Residence
4 June 2025 | 25040-001-Rev1                                                                                                                                                    iv