MCU21.0117 OPW21.0199-Att 5 Stormwater · MCU21/0117

            TABLE OF CONTENTS

            PROJECT INFORMATION .................................................................................................................................... I
            TABLE OF CONTENTS ........................................................................................................................................ II
            1. INTRODUCTION ............................................................................................................................................ 1
            2. SITE DETAILS ................................................................................................................................................. 1
               2. 1. E X I S T I N G S I T E D E S C R I P T I O N ................................................................................ 1
               2. 2. E X I S T I N G D R A I N A G E P A T T E R N S ............................................................................. 3
                 2.2.1 Existing Stormwater Infrastructure .................................................................................................... 3
                 2.2.1.1.          Roof Drainage ......................................................................................................................... 3
                 2.2.1.1.          Upstream Catchments............................................................................................................. 4
                 2.2.1 Stormwater Catchments .................................................................................................................... 5
               2. 3. P R O P O S E D D E V E L O P M E N T D R A I N A G E P A T T E R N .......................................................... 5
                 2.3.1 Stormwater Concept .......................................................................................................................... 5
                 2.3.2 Stormwater Catchments .................................................................................................................... 6
               2. 4. F L O O D C O N S I D E R A T I O N S .................................................................................... 7
            3. STORMWATER QUANTITY ............................................................................................................................ 8
               3. 1. D I S C H A R G E T O P E A R L S T R E E T ............................................................................... 8
            4. STORMWATER QUALITY ............................................................................................................................. 11
               4. 1. C O N S T R U C T I O N P H A S E ...................................................................................... 11
                 4.1.1 Erosion and Sediment Control Measures ......................................................................................... 11
                 4.1.2 Erosion and Sediment Control Monitoring ....................................................................................... 12
               4. 2. O P E R A T I O N A L ................................................................................................ 12
                 4.2.1 MUSIC Modelling ............................................................................................................................. 13
                 4.2.1.1.          Rainwater Tanks ................................................................................................................... 14
                 4.2.1.1.          Pit Inserts .............................................................................................................................. 16
                 4.2.1.1.          Bioretention Areas ................................................................................................................ 17
                 4.2.1.2.          MUSIC modelling results ....................................................................................................... 18
                 4.2.2 Operational Maintenance ................................................................................................................ 19
            5. CONCLUSION .............................................................................................................................................. 20
                                   PROPOSED DEVELOPMENT PLANS ........................................................................................ 22
                                   STORMWATER HGL ANALYSIS ............................................................................................... 23
                                   EXAMPLE ESC DEFECT DOCUMENTATION TEMPLATE ............................................................ 29
                                   ECOSOL LITTER BASKET TECHNICAL SPECIFICATION .............................................................. 31
                                   BIORETENTION INSPECTION CHECKLIST ................................................................................ 32




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