Referenced Doc - Effluent - MCU24/0071

              2.3      Soil Investigation
              The soil profile and design characteristics for the effluent disposal area are presented in Table 3.

              Table 3: Soil Type
                                              BH1                                                          BH2
                                              Sandy Clay Loam                                              Sandy Clay Loam
                    0 – 500                        Brown                          0 – 500                       Brown
                                             Medium plasticity                                            Medium plasticity
                                              Sandy Light Clay                                             Sandy Light Clay
                  500 – 1000                       Brown                         500 – 1000                     Brown
                                           Medium to high plasticity                                    Medium to high plasticity
                                                                  Design Characteristics
                Texture                                      Clay Loam over Light Clay
                Structure                                    Moderately structured
                Category                                     5
                Indicative Permeability (Ksat)               0.06 – 0.12 m/day
                Design Loading Rate (DLR)                    10 mm/day for secondary effluent


              3      Proposed Wastewater System
              3.1      Proposed Wastewater System
              Due to the proposed location of the cabins and their proximity to waterways, macerating sewage pump
              stations are required at the buildings to transfer influent to an on-site sewage facility located away of
              environmental constraints. The ‘advanced secondary’ facility (treatment plant and land application area,
              as defined by QPW Code 2024), must be at least 10m from the bank of a watercourse, and will be
              positioned to the south of the cabins.

              A subsurface land application area consisting of piped trenches will be installed for the disposal of
              treated effluent.


              3.2      Design Details
              Table 4 below presents the features of the proposed wastewater system.

              Table 4: Design Features
                                              Feature                         Details
                                              Water supply                    Bore water and rain water
                                                                              150 L/person/day
                                              Volume Allowance
                                                                              (note: bathtubs and laundries not provided)
                    Design Volume             Number of bedrooms              2x 1-bedroom cabins
                                              Design population               4 people
                                              Total Design Volume (Q)         600 L/day
                                              Category                        5
                  Soil Characteristics
                                              Design Loading Rate (DLR)       10 mm/day
                    Pump Stations             Pump stations at buildings      600L (min) pre-packaged macerating pump stations
                                              Treatment plant                 Aussie Treat Model 20
                  Treatment System            Treatment plant approval        09 - 2022
                                              Treatment level                 Advanced Secondary

              Site and Soil Evaluation                                             Proposed Cabins - 486 Tablelands Road, Cooran Qld 4569
              Taylor Environmental (Australia) Pty Ltd                                                                        Page 6 of 22



Document Set ID: 23040840
Version: 1, Version Date: 31/05/2024