Compiled Reference Document - MCU25/0020 (As Published)

ADG Consulting Pty Ltd

 

Table of Contents

 

 

 

 

 

 

 

 

1 INTRODUCTION 1
1.1 PROPOSED DEVELOPMENT 1
1.2 RELEVANT GUIDELINES 1
1.3 GENERAL ENVIRONMENTAL DUTY 1
1.4 DMP oBjJECTIVES 2
1.5 SCOPE OF WORK 2
2 SITE CHARACTERISTICS 3
2.1 PROPERTY DESCRIPTION 3
2.2 SURROUNDING ENVIRONMENT 3
2.3 TOPOGRAPHY 3
2.4 GEOLOGY & SOILS 3
2.5 HYDROGEOLOGY 3
3 PREVIOUS INVESTIGATIONS 4
3.1 GLOBAL TESTING 2016 4
3.1.1 Sous 5
3.1.2 | GROUNDWATER 5
3.2 STA CONSULTING ENGINEERS 2016 5
3.3 GROUNDWATER QUALITY 5
4 WATER QUALITY OBJECTIVES 7
4.1 RECEIVING ENVIRONMENT 7
4.2 DEVELOPMENT OF WATER QUALITY OBJECTIVES 7
4.3 PROPOSED WATER QUALITY OBJECTIVES 8
5 DEWATERING METHODOLOGY 10
5.1 BASEMENT EXCAVATION AND SHORING 10
5.2 GROUNDWATER EXTRACTION 10
5.3 EXTRACTION/DISCHARGE RATES AND VOLUME 10
5.3.1 | DEWATERING EXTRACTION CALCULATION BASED ON SUBSURFACE SOIL PROFILE 10
5.4 DEWATERING DURATION 11
5.5 GROUNDWATER DRAWDOWN 11
5.6 GROUNDWATER TREATMENT 12
5.7 NOMINATED HOLD POINTS 12
6 WATER QUALITY MANAGEMENT 13
6.1 RESPONSIBILITY 13
6.2 OPERATIONAL POLICY 13
6.3 PERFORMANCE CRITERIA 13
6.4 IMPLEMENTATION STRATEGY 13
6.4.1 | GROUNDWATER TREATMENT SYSTEMS 13
6.4.2 DEWATERING STRATEGY 14
6.4.3 INITIAL PUMP-OUT 14
6.5 MOoniTorING 14
6.5.1 VISUAL MONITORING 14
6.5.2 | WATER QUALITY MONITORING 14
6.5.3 | MONITORING RESPONSIBILITIES 15
6.6 MAINTENANCE 16
6.7 REPORTING 16
6.8 CONTINGENCIES 16
7 NOISE & ODOUR MANAGEMENT 18
71 RESPONSIBILITY 18
7.2 OPERATIONAL POLICY 18
73 PERFORMANCE CRITERIA 18
74 IMPLEMENTATION STRATEGY 18
7.4.1 NOISE 18
7.4.2 ODOUR 18
ADG1786.25 Dewatering Management Plan_Rev1_07.10.25 Page iii