Environmental Assessment
Volume E-1
Tailings Facility
Alternatives Considered
Table 1-1
Evaluation of Alternative Tailings Facility Locations (continued)
Ambatovy Project
3
January 2006
Site
Location
Capacity
Efficiency
Land Use
Conditions
Access and
Elevation
Risks
Toamasina
TA-10/
TA-11
west of Toamasina and
PS-5
sufficient
medium/good -
valley type
medium-scale
agriculture and small
villages
expected to be relatively
impermeable and
competent
good access to
elev. 45 m
villages and
discharge to south
into Ivondro River
TA-12/
TA13
west of Toamasina and
PS-5
insufficient
medium/good -
valley type
medium-scale
agriculture and large
villages
expected to be relatively
impermeable and
competent
good access to
elev. 45 m
villages/agricultural
areas and
discharge to north
into Onibe River
watershed
Ring
Dyke
south of Toamasina
near PS-5
barely
sufficient
very poor - no
natural
containment
designated industrial
area
pervious alluvium
requiring basin liner
good access to
elev. 35 m.
adjacent town of
Toamasina and
Pangalanes Canal
South
Valley
west of Toamasina and
PS-5 and south of TA-
10/11
sufficient
poor - valley type
medium-scale
agriculture and large
villages in lower valley
expected to be relatively
impermeable and
competent
good access to
elev. 45 m.
villages/agricultural
areas and
discharge south to
Ivondro River
West
of
TA-
10/11
west of Toamasina and
PS-5
insufficient
if only one
valley
developed
poor - valley
type but limited
storage
small-scale agriculture
and small villages
expected to be relatively
impermeable and
competent
no access and
topography as
high as elev.
200 m
villages/agricultural
areas and
discharge south to
Ivondro River
