Approved Plans - MCU18-0097 · MCU18/0097

                 GOOD SHEPHERD LUTHERAN COLLEGE                                                                   ODYSSEY CONSULTING GROUP
                 Lot 30 on SP170751                                                                    Conceptual Stormwater Management Plan
                 115 Eumundi Noosa Road, Noosaville                                                                          Project No: K4277

                                  80% reduction in Total Suspended Sediment (TSS);
                                  45% reduction in Total Nitrogen (TN);
                                  60% reduction in Total Phosphorus (TP); and
                                  90% reduction in Gross Pollutants (sized 5 mm or greater)

                 5.3      Construction Phase
                          A high risk of stormwater pollution will occur from the site during the construction phase due to
                          erosion and sediment transportation off site to the receiving environment. The majority of this risk
                          results from construction activities disturbing the site and exposing areas of soil to the direct erosive
                          influence of the environment. The following section outlines the procedures necessary to minimise
                          erosion and control sediment during construction in accordance with Department of Environment and
                          Resource Management’s, Urban Stormwater Quality Planning Guidelines, 2010, (DERM USQG). and
                          the Institution of Engineers Australia (QLD) Erosion and Sediment Control Guidelines.

                          Common Pollutants
                          In accordance with Table 1.1 (DERM USQG, 2010) the following common pollutants have been
                          identified for the Construction Phase of this development.

                          Table 16:        Construction Phase Key Pollutants
                              Pollutant                  Sources
                              Litter                     Paper, construction packaging, food packaging, cement bags, material off cuts.
                              Sediment                   Exposed soils and stockpiles during earthworks and building works.
                                                         Fuel and oil spills, leaks from construction equipment and temporary car park
                              Hydrocarbons
                                                         areas.
                                                         Cement slurry, asphalt primer, solvents, cleaning agents, and wash waters (e.g.,
                              Toxic Materials
                                                         from tile works).
                              Acids of Alkaline
                                                         Acid sulphate soil, cement slurry and wash waters.
                              Substances

                          Performance Criteria
                          The following site discharge pollutant criteria have been adopted for water quality monitoring during
                          the construction phase of the development.

                          Table 17:        Construction Phase Water Quality Performance Criteria
                              Pollutant                  Criteria
                              Total Suspended Solids     90th percentile <50mg/L
                              pH                         6.5 – 8.5
                              Dissolved Oxygen           90th percentile >80% saturation or 6mg/L
                              Hydrocarbons               No visible sheen on receiving waters
                              Litter                     No visible litter washed from site.
                                                         As recommended by Acid Sulphate Soil Management Plan (If
                              Cations and Anions
                                                         Applicable to Development).

                          Sediment and Erosion Controls
                          Sediment and erosion control devices (S&EC) employed on the site shall be designed and constructed
                          in accordance with the IECA, Best Practice Erosion and Sediment Control Guidelines (2008) as shown
                          on Odyssey Consulting Group, Sediment and Erosion Control Plan and Details (Ref: K4277/P008/D &
                          Ref: K4277/P009/B) included as Appendix G.

                          Pre-Construction:
                                  Stabilised access/exit to the works area;
                                  Sediment fences to be located along the contour lines downstream of disturbed areas;
                                  Dust fencing to be installed as required; and
                                  Educate site personnel to the requirements of Erosion and Sediment Control Plan.



                 K4277-0002-E                                             18 June 2019                                           Page 10 of 14
Document Set ID: 20894174
Version: 1, Version Date: 03/07/2019