Ambatovy eBooks - page 8

Environmental Assessment Volume B
Mine Table of Contents
Ambatovy Project vii January 2006
R:\Active\2003\03-1322\03-1322-172_Dynatec\5300 Documentation\Final EA\Volume B
Table 3.3-4 Residual Impact Classification for Soils.................................................................40
Table 3.4-1 Community Locations Near Mine Site ...................................................................44
Table 3.4-2 Ambient Air Quality Criteria ...................................................................................45
Table 3.4-3 Impact Description Criteria for Air Quality .............................................................46
Table 3.4-4 Magnitude Classifications for Air Quality ...............................................................47
Table 3.4-5 Air Quality Screening System of Environmental Consequences...........................47
Table 3.4-6 Mine Air Emissions Summary(b) .............................................................................51
Table 3.4-7 Summary of Air Quality Predictions in the Mine Study Area .................................52
Table 3.4-8 Maximum Predicted SO2 Concentrations in Communities ....................................53
Table 3.4-9 Maximum Predicted NO 2 Concentrations in Communities ....................................54
Table 3.4-10 Maximum Predicted Particulate Concentrations in Communities..........................55
Table 3.4-11 Residual Impact Classification for Effects to Air Quality........................................57
Table 3.4-12 Summary of Greenhouse Gas Emissions from the Mine ......................................59
Table 3.4-13 Madagascar National Greenhouse Gas Emissions...............................................59
Table 3.5-1 Summary of Existing Noise Levels, Ambatovy Project Mine Site..........................63
Table 3.5-2 Dynatec Mine Sound Emissions ............................................................................68
Table 3.5-3 Predicted Noise Levels-Mine Site..........................................................................69
Table 3.5-4 Comparison of Predicted Noise Levels with World Bank Criteria, Mine Site.........69
Table 3.5-5 Expected Change in Baseline Noise Levels, Mine Site.........................................69
Table 3.5-6 Residual Impact Classification - Noise ..................................................................71
Table 3.6-1 Description of Risk Criteria for Mining ...................................................................76
Table 3.7-1 Mine Site Groundwater Quality..............................................................................83
Table 3.7-2 Impact Description Criteria and Numerical Scores for Hydrogeology ...................86
Table 3.7-3 Reduction in Affected River Inflow into the Wetland Systems due to
Baseflow Contribution Decrease ...........................................................................88
Table 3.7-4 Residual Impact Classification for Hydrogeology ..................................................90
Table 3.8-1 Derived Monthly and Annual Precipitation (mm) for the Mine ...............................93
Table 3.8-2 Maximum Daily Rainfall .........................................................................................93
Table 3.8-3 Maximum 24-Hour Rainfall Amount.......................................................................93
Table 3.8-4 Mangoro River - Mean Monthly and Annual Flows................................................94
Table 3.8-5 Mangoro River - Extreme Daily Flow.....................................................................94
Table 3.8-6 Impact Description Criteria and Numerical Scores for the Ambatovy
Project – Surface Water Hydrology .......................................................................97
Table 3.8-7 Change in Flows at 500 m Downstream of Runoff Collection Ponds....................99
Table 3.8-8 Changes in January Flows at Various Distances Downstream of Runoff
Collection Ponds ..................................................................................................102
Table 3.8-9 Changes in Mean Monthly Flows at Various Distances Downstream of
Runoff Collection Ponds ......................................................................................103
Table 3.8.10 Changes in January Water Depths and Velocities at Monitoring
Locations(a) – Operation Year 20 .........................................................................106
Table 3.8.11 Changes in January Water Depths and Velocities at Monitoring
Locations(a) –Closure ...........................................................................................106
Table 3.8.12 Change in Mangoro River Flow due to Mine Water Withdrawal..........................107
Table 3.8-13 Residual Impact Classification for Hydrology ......................................................112
Table 3.9-1 Madagascar Classification System for Surface Water Quality ............................117
Table 3.9-2 Summary of Water Quality Information Used for Assessment ............................124
Table 3.9-3 Water Quality Variables Assessed ......................................................................125
Table 3.9-4 Comparison of Maximum Predicted Concentrations with Baseline Levels
and South African Guideline Values ....................................................................129
Table 3.9-5 Concentrations of Key Water Quality Variables in the Torotorofotsy River
and Torotorofotsy Wetlands (Observed and Predicted) ......................................131
Table 3.9-6 Comparison of Predicted Maximum Sediment Quality Concentrations
During Operations With Guideline Values ...........................................................133
Table 3.10-1 Key Viewpoints: Mine Site ...................................................................................138