Appendix J - Civil Engineering Report and SBSMP

                                                                                   Noosa Residential Development
                                                                             Ref: 24553 C R002 REV03 10.08.21.docx
                                                                                                      August 2021

            All of the site’s impervious areas discharge to suitable treatment device/s;
            Treatment device selection criteria are to be in accordance with Industry Best Practice and,
            WSUD Engineering Guidelines; and
            Provide engineering diagrams of the stormwater quality treatment of the proposed development.

7.2      Site Analysis and Design Strategy
7.2.1    Pre-Development Phase

         An Erosion Hazard Assessment has been carried out for the proposed development – refer to
         Appendix E for a copy of the completed NSC form. As a result of this assessment, it was determined
         that the overall site is a ‘low’ risk.

         Prior to construction commencing, the following erosion and sediment control measures will need to
         be installed around the subject site to minimise disturbance and ensure the quality of runoff
         discharging from the site is of an acceptable standard:

            Sediment barriers to be installed on all entrances to downstream stormwater infrastructure (i.e.
            gully pits);
            Designation of transport routes through the site to minimise vegetation disturbance;
            Maximise retention of existing vegetation to reduce soil disturbance and provide filter strip
            treatment for runoff;
            Install construction entry and exit shakedown areas;
            Sediment fences are to be installed on the downstream boundaries of the subject site; and
            Install dust control measures as required.

         All erosion and sediment control measures are to be designed and installed in accordance with Best
         Practice Erosion and Sediment Control" published by International Erosion Control Association
         (IECA). Further details regarding the proposed erosion and sediment control measures will be
         provided during the detailed design phase of the development.

         Further to the above considerations, it is the developments intent to limit changes to natural ground
         to a minimum.

7.2.2    Bulk Earthworks Phase

         During the bulk earthworks phase, the following erosion and sediment control measure will need to
         be installed in addition to the aforementioned measures (Pre-Development Phase) to ensure there
         is minimal disturbance to downstream receiving water bodies:

            Construction chutes to control runoff over earthworks batters;
            Construction of temporary bunds at the top of all earthworks batters to ensure runoff is directed
            away from exposed batters;
            Sediment basins to be constructed at low points within each stage of the proposed development;
            Sediment fences to be installed on the downstream side of any stockpiles; and
            Stabilisation of all batters upon reaching the finished earthworks levels.

         All erosion and sediment control measures are to be designed and installed in accordance with Best
         Practice Erosion and Sediment Control" published by International Erosion Control Association
         (IECA). Further details regarding the proposed erosion and sediment control measures will be
         provided during the detailed design phase of the development.




BRISBANE / SYDNEY / MELBOURNE / GOLD COAST / SUNSHINE COAST / DARWIN / PERTH                              Page 16