Effluent Disposal Approval northern unit

                 6 Wastewater System Solution Design
                 It is proposed to install and AES system for the new caretakers cottage. The septic system for
                 the primary residence is to be retained.

                 Table 5 below presents the key features of this design solution.
                 Table 5: Design Features
                                             Feature                                   Details
                                             Treatment plant                           Advanced Enviro Septic (AES)
                   Treatment System          Treatment plant approval                  15/2019
                                             Treatment level                           Advanced secondary
                                             Water supply                              Rain Water (120 L/day)
                                             Number of bedrooms                        2 bedrooms
                     Design Volume
                                             Number of people                          4 People
                                             Total Design Volume (Q)                   480 L/day
                                             Category                                  5
                  Soil Characteristics
                                             Design Loading Rate (DLR)                 12 mm/day
                                             Application method                        Subsurface AES bed
                    Land Application
                                             Required Land Application Area            A = Q / DLR = 480 / 12 = 40 m2
                         Area
                                             Proposed Land Application Area            40 m2



                 The design of the AES system is presented in Appendix A.

                 The Advanced Enviro-Septic Approved Design Calculator is presented in Appendix B.

                 The AES Treatment Plant Approval is presented in Appendix C.



                 7 Setback Distances
                 The Queensland Plumbing and Wastewater Code V1:2019 Appendix Part 2, Table T2 and
                 Table T5, outlines minimum setback separation distances required for subsurface land
                 application areas.

                 These distances are presented in Table 6.

                 Table 6: Separation Distances
                                                                                      Separation Distance
                                           Feature
                                                                              Up Slope   Down Slope       Level
                  Property boundaries, pedestrian paths, walkways,
                                                                                2m                  4m                 2m
                  recreation areas, retaining walls, footings
                  Inground swimming pool                                        6m                  6m                 6m
                  Inground potable water tank
                                                                                6m                  6m                 6m
                  (not exposed to primary effluent)
                  Inground potable water tank
                                                                                15 m                15 m              15 m
                  (exposed to primary effluent)

                 Site and Soil Evaluation                                                  53 Martins Road, Cooroy QLD 4563
                 Taylor Environmental (Australia) Pty Ltd                                                       Page 4 of 16



Document Set ID: 21598877
Version: 1, Version Date: 30/08/2021