Attachment 5 - Stormwater Managment Plan · 132007.12.8

Contents
EXECUTIVE SUMMARY                                   I

1 INTRODUCTION                                      4
1.1 SITE CHARACTERISTICS                            4

2 STORMWATER QUALITY                                6
2.1 DESIGN OBJECTIVES                               6
2.2 STORMWATER QUALITY TREATMENT                    6
2.2.1 STRATEGY                                      6
2.3 MODELLING APPROACH                              6
2.3.1 MUSIC PARAMETERS                              6
2.3.2 CATCHMENT AREAS                               7
2.3.3 MUSIC MODEL LAYOUT                            8
2.4 TREATMENT MEASURES                              9
2.4.1 BIORETENTION SYSTEM                           9
2.4.2 SEDIMENT FOREBAYS                             9
2.5 RESULTS                                        10

3 STORMWATER QUANTITY                              11
3.1.1 EXISTING SCENARIO                            11
3.1.2 DEVELOPED SCENARIO                           13
3.1.3 MITIGATED SCENARIO                           14

4 CONSTRUCTION PHASE MANAGEMENT                    15
4.1 EROSION AND SEDIMENT CONTROL                   15

5 ESTABLISHMENT AND OPERATIONAL PHASE MANAGEMENT   16
5.1 ESTABLISHMENT                                  16
5.2 OPERATIONAL                                    16

6 CONCLUSIONS                                      17

7 REFERENCES                                       18
APPENDICIES

Appendix 1: Site Layout                            19
Appendix 2: WBNM Output                            20
Appendix 3: Preliminary Design Drawings            21