Environmental Assessment
Volume C-6
Slurry Pipeline
Reclamation and Closure
Ambatovy Project
207
January 2006
The following clean-up and reclamation activities will be completed, relevant to
each development and reclamation component of the project.
6.1.1
Roads and Slurry Pipeline Right-of-Way
The trenchline and any other areas of disturbance, such as cut and fill, will be re-
contoured to match the surrounding terrain. Loose soil taken from the trench will
be replaced and will initially be left as an elevated hump of soil to compensate
for potential settling. Salvaged topsoil or organic materials will be spread back
over the disturbed areas to promote site stability and vegetation growth.
Additional site-specific reclamation may include rolling back any salvaged slash
or other organic material.
Portions of the road may be used for transportation throughout the life of the
project, and possibly beyond, and therefore subject to chronic disturbance by
vehicle traffic and maintenance. Unused areas of the road right-of-way (RoW)
(i.e., ditches) will be allowed to revegetate to promote site stability, while
maintaining safety and structural integrity.
6.1.2
Borrow Pits
Borrow pits will be recontoured and/or terraced as necessary to promote site
stability. Slash rollback and re-seeding (if required) for borrow pits would be as
described above for reclamation of the other sites.
6.1.3
Stream Crossings
If the banks at stream crossings are inadvertently disturbed, they will be
recontoured and seeded to promote vegetation growth for stability and/or
supported with rip-rap (large rocks used for erosion control), as appropriate.
6.1.4
Spills
Should any accidental surface contamination occur from spills or releases, the
affected location will be evaluated and appropriate remedial techniques will be
implemented. The affected location will be restored to natural land capabilities.
