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Environmental Assessment Volume E
Tailings Facility Table of Contents
Ambatovy Project iv January 2006
R:\Active\2003\03-1322\03-1322-172_Dynatec\5300 Documentation\Final EA\Volume A
3.6.5 Impact Assessment........................................................................................42
3.7 HYDROGEOLOGY........................................................................................................48
3.7.1 Introduction ....................................................................................................48
3.7.2 Study Areas....................................................................................................48
3.7.3 Baseline Summary.........................................................................................48
3.7.4 Issue Scoping.................................................................................................52
3.7.5 Impact Assessment........................................................................................53
3.7.6 Impact Analysis ..............................................................................................60
3.7.7 Conclusions....................................................................................................63
3.8 SURFACE WATER HYDROLOGY ...............................................................................64
3.8.1 Introduction ....................................................................................................64
3.8.2 Study Areas....................................................................................................64
3.8.3 Baseline Summary.........................................................................................64
3.8.4 Issue Scoping.................................................................................................66
3.8.5 Impact Assessment........................................................................................67
3.8.6 Impact Analysis ..............................................................................................82
3.8.7 Conclusions....................................................................................................85
3.9 OCEANOGRAPHY........................................................................................................86
3.9.1 Introduction ....................................................................................................86
3.9.2 Methods .........................................................................................................86
3.9.3 Marine Outfall Assessment – Physico-Chemical Composition and
Possible Impacts ............................................................................................91
3.9.4 Marine Outfall Impact Assessment ..............................................................106
3.9.5 Conclusions..................................................................................................116
3.10 WATER QUALITY .......................................................................................................119
3.10.1 Introduction ..................................................................................................119
3.10.2 Study Area ...................................................................................................119
3.10.3 Baseline Summary.......................................................................................120
3.10.4 Issue Scoping...............................................................................................122
3.10.5 Impact Assessment......................................................................................122
3.11 VISUAL AESTHETICS ................................................................................................142
3.11.1 Introduction ..................................................................................................142
3.11.2 Study area....................................................................................................142
3.11.3 Baseline summary........................................................................................142
3.11.4 Issue Scoping...............................................................................................143
3.11.5 Impact Assessment......................................................................................144
3.11.6 Conclusions..................................................................................................152
4 BIOLOGICAL .......................................................................................................... 153
4.1 FLORA.........................................................................................................................153
4.1.1 Introduction ..................................................................................................153
4.1.2 Study Area ...................................................................................................153
4.1.3 Baseline Summary.......................................................................................153
4.1.4 Issue Scoping...............................................................................................154
4.1.5 Key Question FL-1 What Effect Will the Tailings Facility Have on the
Loss or Alteration of Plant Communities?....................................................156
4.2 FAUNA.........................................................................................................................165
4.3 FISH AND AQUATIC RESOURCES...........................................................................166
4.3.1 Introduction ..................................................................................................166
4.3.2 Study Area ...................................................................................................166
4.3.3 Baseline Summary.......................................................................................166
4.3.4 Issue Scoping...............................................................................................174
4.3.5 Key Question FA-1: What Effect Will the Project Have on Aquatic
Habitat?........................................................................................................177