Request to Amend Application and Response to DSDIP's Information Request · MCU14/0009

Contents
EXECUTIVE SUMMARY                                 I

1 INTRODUCTION                                    1
1.1 SITE CHARACTERISTICS                          1

2 STORMWATER QUALITY                              4
2.1 DESIGN OBJECTIVES                             4
2.2 STORMWATER QUALITY TREATMENT                  4
2.2.1 STRATEGY                                    4
2.3 MODELLING APPROACH                            4
2.3.1 MUSIC PARAMETERS                            4
2.3.2 CATCHMENT AREAS                             5
2.3.3 MUSIC MODEL LAYOUT                          5
2.4 TREATMENT MEASURES                            6
2.4.1 BIORETENTION SYSTEM                         6
2.4.2 SEDIMENT FOREBAYS                           6
2.5 RESULTS                                       7

3 STORMWATER QUANTITY                             8
3.1   EXISTING SCENARIO                           8
3.2   RATIONAL METHOD CALIBRATION                 9
3.3   DEVELOPED SCENARIO                         10
3.4   MITIGATED SCENARIO                         11
3.5   CONSTRUCTION PHASE STORMWATER MANAGEMENT   12
3.6   OPERATIONAL PHASE STORMWATER MANAGEMENT    13

4 CONCLUSIONS                                    14

5 REFERENCES                                     15


APPENDICIES

Appendix 1: Concept Stormwater Plan              16
Appendix 2: Rational Method and WBNM Output      17


FIGURES

Figure 1: Locality Plan                           2
Figure 2: Proposed Development Layout             3
Figure 3: Model Layout                            5