003 ECM_22828362_v1_Reference Document - OPW23 0189 · OPW26/0094

                  Project No. PG-10899                                                                                                        Page | 4
                  November 2023
                  Ref: PG-10899, 2023-10-16, ASR VER 3
                  DD Sunnyside CD Sunnyside Pty Ltd – Acid Sulfate Soil Investigation - Proposed Residence, 30 Mossman Court, Noosa Heads




                 4.0 GEOLOGICAL MODEL

                 The subsurface profile encountered in borehole BH01 generally consisted of a surficial
                 concrete layer associated with the driveway, overlying very loose to loose sand fill to
                 a depth of 2.3m, overlying natural sands that were generally medium dense to dense,
                 becoming indurated at a depth of 6.6m, and continued to the termination of
                 borehole BH01 of 9.0m.

                 In HA02, loose silty sand fill was encountered to a depth of 0.6m, overlying loose sand
                 fill to the termination depth of 1.0m.

                 Table 1. presents a summary of the encountered subsurface profile. Detailed borehole
                 record sheets are appended to this report.

                 TABLE 1                           SUBSURFACE PROFILE SUMMARY

                                                                           NATURAL
                                                                             SAND
                   BH No.               FILL                                                                                                BH TD
                                                                                  Dense to Very Dense
                                                         Medium Dense to Dense
                                                                                      (Indurated)
                    BH01              0.0-2.3                   2.3-6.6                  6.6-TD                                              9.0
                    BH02              0.0-TD                      NE                       NE                                                1.0

                 Notes:
                 1. All depths in metres below ground level at time of investigation.
                 2. NE - Not Encountered; TD - Termination Depth.

                 5.0 GROUNDWATER

                 Groundwater was noted in borehole BH01 at a depth of 2.8m at the time of drilling.
                 Water levels can be expected to similar to the tidal levels of the neighbouring canal
                 and may vary with seasonal and climatic conditions.




Document Set ID: 22828362
Version: 1, Version Date: 26/02/2024