Refernce Documents - RAL25 0001

                           -    The existing waterway area is not utilised by the downstream property owner for
                                either rural/agricultural or residential purposes. No nuisance or loss of enjoyment
                                will result from proposed development works.


                     Refer to the Flood Maps in Appendix D for details of the overland flow path flooding
                     extents during the major (1% AEP) storm events for the pre and post developed scenarios.



                     5.2       Peak Flow Management

                     The proposed development will result in a minor increase to the impervious area within
                     the development site. Allowing for an impervious area of 1,000m2 per lot (house, shed
                     and access driveways) plus 3268m2 of road and nominated access driveways, the
                     impervious area within the development site will increase to 12,268m2. This equates to a
                     fraction impervious of 0.06 or 6% of the site area.


                     These impervious areas are disconnected from the flow paths and neighbouring
                     properties, meaning runoff from the impervious areas will pass over pervious areas
                     allowing further infiltration before reaching the site boundaries and flow path. This will
                     help mitigate impacts external to the site.


                     Table 5.2-1 Shows the central flow path catchment characteristics and breakdown.




                                                                                                                 8
Document Set ID: 23448644
Version: 1, Version Date: 13/01/2025