Summary
the sites is required. Depending on the nature of the data recovered,
additional excavations may be warranted. The tombs, symbolic tomb
and ceremonial sites situated inside the proposed tailings impact zone
will be relocated. For this to occur, proper protocol involving correct rites
and rituals must be observed. Discussions and negotiations with
resident groups will be necessary. The resettlement of people that will
be required also implies a requirement to relocate tombs or other cultural
sites associated with households that have to be resettled, irrespective
of the position of the tombs in relation to construction impact zones.
Biodiversity
Avoidance of native vegetation through siting the tailings facility in a
disturbed area, provides the most effective mitigation to limit flora and
fauna impacts.
Main impacts will occur to biodiversity associated with remaining aquatic
habitats. Effects on fish will occur as a consequence of the loss of
watercourses in the tailings area and impacts to downstream habitats
resulting from reduced flows. The upstream areas in the tailings footprint
are likely less important than the larger water bodies downstream.
However, salvage of selected endemic fish will take place prior to
construction, if suitable release sites or use can be identified.
Reclamation and Closure
Reclamation and closure of the tailings facility will be based on the
following goals:
•
the reclamation and closure design will ensure that long-term
physical and chemical stability is provided;
•
progressive reclamation will be implemented where possible; and
•
upon cessation of operations, the area will be decommissioned and
rehabilitated to allow for future land use as guided by local
authorities and stakeholders.
The tailings reclamation and closure plan will be updated throughout the
project life to reflect changing conditions and the input of local authorities
and stakeholders.
The tailings will be allowed to air dry for a period of time and
progressively revegetated to provide a stable erosion-resistant surface
which may be safely crossed by people and livestock. A research-based
reclamation trials program will be utilized to help ensure that adequate
and desired vegetation cover can be achieved. A residual sedimentation
pond will be left in place to collect sediment until the vegetation becomes
well established and may remain as a wetlands area. Suitable drainage
measures will be designed and implemented for maintaining stability
January 2006
Ambatovy Project — 42
